array( 'name_admin_bar' => _x( 'Post', 'add new on admin bar' ), ), 'public' => true, '_builtin' => true, /* internal use only. don't use this when registering your own post type. */ '_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */ 'capability_type' => 'post', 'map_meta_cap' => true, 'menu_position' => 5, 'hierarchical' => false, 'rewrite' => false, 'query_var' => false, 'delete_with_user' => true, 'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'trackbacks', 'custom-fields', 'comments', 'revisions', 'post-formats' ), ) ); register_post_type( 'page', array( 'labels' => array( 'name_admin_bar' => _x( 'Page', 'add new on admin bar' ), ), 'public' => true, 'publicly_queryable' => false, '_builtin' => true, /* internal use only. don't use this when registering your own post type. */ '_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */ 'capability_type' => 'page', 'map_meta_cap' => true, 'menu_position' => 20, 'hierarchical' => true, 'rewrite' => false, 'query_var' => false, 'delete_with_user' => true, 'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'page-attributes', 'custom-fields', 'comments', 'revisions' ), ) ); register_post_type( 'attachment', array( 'labels' => array( 'name' => _x('Media', 'post type general name'), 'name_admin_bar' => _x( 'Media', 'add new from admin bar' ), 'add_new' => _x( 'Add New', 'add new media' ), 'edit_item' => __( 'Edit Media' ), 'view_item' => __( 'View Attachment Page' ), ), 'public' => true, 'show_ui' => true, '_builtin' => true, /* internal use only. don't use this when registering your own post type. */ '_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */ 'capability_type' => 'post', 'capabilities' => array( 'create_posts' => 'upload_files', ), 'map_meta_cap' => true, 'hierarchical' => false, 'rewrite' => false, 'query_var' => false, 'show_in_nav_menus' => false, 'delete_with_user' => true, 'supports' => array( 'title', 'author', 'comments' ), ) ); add_post_type_support( 'attachment:audio', 'thumbnail' ); add_post_type_support( 'attachment:video', 'thumbnail' ); register_post_type( 'revision', array( 'labels' => array( 'name' => __( 'Revisions' ), 'singular_name' => __( 'Revision' ), ), 'public' => false, '_builtin' => true, /* internal use only. don't use this when registering your own post type. */ '_edit_link' => 'revision.php?revision=%d', /* internal use only. don't use this when registering your own post type. */ 'capability_type' => 'post', 'map_meta_cap' => true, 'hierarchical' => false, 'rewrite' => false, 'query_var' => false, 'can_export' => false, 'delete_with_user' => true, 'supports' => array( 'author' ), ) ); register_post_type( 'nav_menu_item', array( 'labels' => array( 'name' => __( 'Navigation Menu Items' ), 'singular_name' => __( 'Navigation Menu Item' ), ), 'public' => false, '_builtin' => true, /* internal use only. don't use this when registering your own post type. */ 'hierarchical' => false, 'rewrite' => false, 'delete_with_user' => false, 'query_var' => false, ) ); register_post_status( 'publish', array( 'label' => _x( 'Published', 'post' ), 'public' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop( 'Published (%s)', 'Published (%s)' ), ) ); register_post_status( 'future', array( 'label' => _x( 'Scheduled', 'post' ), 'protected' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop('Scheduled (%s)', 'Scheduled (%s)' ), ) ); register_post_status( 'draft', array( 'label' => _x( 'Draft', 'post' ), 'protected' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop( 'Draft (%s)', 'Drafts (%s)' ), ) ); register_post_status( 'pending', array( 'label' => _x( 'Pending', 'post' ), 'protected' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop( 'Pending (%s)', 'Pending (%s)' ), ) ); register_post_status( 'private', array( 'label' => _x( 'Private', 'post' ), 'private' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop( 'Private (%s)', 'Private (%s)' ), ) ); register_post_status( 'trash', array( 'label' => _x( 'Trash', 'post' ), 'internal' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop( 'Trash (%s)', 'Trash (%s)' ), 'show_in_admin_status_list' => true, ) ); register_post_status( 'auto-draft', array( 'label' => 'auto-draft', 'internal' => true, '_builtin' => true, /* internal use only. */ ) ); register_post_status( 'inherit', array( 'label' => 'inherit', 'internal' => true, '_builtin' => true, /* internal use only. */ 'exclude_from_search' => false, ) ); } /** * Retrieve attached file path based on attachment ID. * * By default the path will go through the 'get_attached_file' filter, but * passing a true to the $unfiltered argument of get_attached_file() will * return the file path unfiltered. * * The function works by getting the single post meta name, named * '_wp_attached_file' and returning it. This is a convenience function to * prevent looking up the meta name and provide a mechanism for sending the * attached filename through a filter. * * @since 2.0.0 * * @param int $attachment_id Attachment ID. * @param bool $unfiltered Optional. Whether to apply filters. Default false. * @return string|false The file path to where the attached file should be, false otherwise. */ function get_attached_file( $attachment_id, $unfiltered = false ) { $file = get_post_meta( $attachment_id, '_wp_attached_file', true ); // If the file is relative, prepend upload dir. if ( $file && 0 !== strpos($file, '/') && !preg_match('|^.:\\\|', $file) && ( ($uploads = wp_upload_dir()) && false === $uploads['error'] ) ) $file = $uploads['basedir'] . "/$file"; if ( $unfiltered ) return $file; /** * Filter the attached file based on the given ID. * * @since 2.1.0 * * @param string $file Path to attached file. * @param int $attachment_id Attachment ID. */ return apply_filters( 'get_attached_file', $file, $attachment_id ); } /** * Update attachment file path based on attachment ID. * * Used to update the file path of the attachment, which uses post meta name * '_wp_attached_file' to store the path of the attachment. * * @since 2.1.0 * * @param int $attachment_id Attachment ID. * @param string $file File path for the attachment. * @return bool True on success, false on failure. */ function update_attached_file( $attachment_id, $file ) { if ( !get_post( $attachment_id ) ) return false; /** * Filter the path to the attached file to update. * * @since 2.1.0 * * @param string $file Path to the attached file to update. * @param int $attachment_id Attachment ID. */ $file = apply_filters( 'update_attached_file', $file, $attachment_id ); if ( $file = _wp_relative_upload_path( $file ) ) return update_post_meta( $attachment_id, '_wp_attached_file', $file ); else return delete_post_meta( $attachment_id, '_wp_attached_file' ); } /** * Return relative path to an uploaded file. * * The path is relative to the current upload dir. * * @since 2.9.0 * * @param string $path Full path to the file. * @return string Relative path on success, unchanged path on failure. */ function _wp_relative_upload_path( $path ) { $new_path = $path; $uploads = wp_upload_dir(); if ( 0 === strpos( $new_path, $uploads['basedir'] ) ) { $new_path = str_replace( $uploads['basedir'], '', $new_path ); $new_path = ltrim( $new_path, '/' ); } /** * Filter the relative path to an uploaded file. * * @since 2.9.0 * * @param string $new_path Relative path to the file. * @param string $path Full path to the file. */ return apply_filters( '_wp_relative_upload_path', $new_path, $path ); } /** * Retrieve all children of the post parent ID. * * Normally, without any enhancements, the children would apply to pages. In the * context of the inner workings of WordPress, pages, posts, and attachments * share the same table, so therefore the functionality could apply to any one * of them. It is then noted that while this function does not work on posts, it * does not mean that it won't work on posts. It is recommended that you know * what context you wish to retrieve the children of. * * Attachments may also be made the child of a post, so if that is an accurate * statement (which needs to be verified), it would then be possible to get * all of the attachments for a post. Attachments have since changed since * version 2.5, so this is most likely inaccurate, but serves generally as an * example of what is possible. * * The arguments listed as defaults are for this function and also of the * {@link get_posts()} function. The arguments are combined with the * get_children defaults and are then passed to the {@link get_posts()} * function, which accepts additional arguments. You can replace the defaults in * this function, listed below and the additional arguments listed in the * {@link get_posts()} function. * * The 'post_parent' is the most important argument and important attention * needs to be paid to the $args parameter. If you pass either an object or an * integer (number), then just the 'post_parent' is grabbed and everything else * is lost. If you don't specify any arguments, then it is assumed that you are * in The Loop and the post parent will be grabbed for from the current post. * * The 'post_parent' argument is the ID to get the children. The 'numberposts' * is the amount of posts to retrieve that has a default of '-1', which is * used to get all of the posts. Giving a number higher than 0 will only * retrieve that amount of posts. * * The 'post_type' and 'post_status' arguments can be used to choose what * criteria of posts to retrieve. The 'post_type' can be anything, but WordPress * post types are 'post', 'pages', and 'attachments'. The 'post_status' * argument will accept any post status within the write administration panels. * * @since 2.0.0 * * @see get_posts() * @todo Check validity of description. * * @global WP_Post $post * * @param mixed $args Optional. User defined arguments for replacing the defaults. Default empty. * @param string $output Optional. Constant for return type. Accepts OBJECT, ARRAY_A, ARRAY_N. * Default OBJECT. * @return array Array of children, where the type of each element is determined by $output parameter. * Empty array on failure. */ function get_children( $args = '', $output = OBJECT ) { $kids = array(); if ( empty( $args ) ) { if ( isset( $GLOBALS['post'] ) ) { $args = array('post_parent' => (int) $GLOBALS['post']->post_parent ); } else { return $kids; } } elseif ( is_object( $args ) ) { $args = array('post_parent' => (int) $args->post_parent ); } elseif ( is_numeric( $args ) ) { $args = array('post_parent' => (int) $args); } $defaults = array( 'numberposts' => -1, 'post_type' => 'any', 'post_status' => 'any', 'post_parent' => 0, ); $r = wp_parse_args( $args, $defaults ); $children = get_posts( $r ); if ( ! $children ) return $kids; if ( ! empty( $r['fields'] ) ) return $children; update_post_cache($children); foreach ( $children as $key => $child ) $kids[$child->ID] = $children[$key]; if ( $output == OBJECT ) { return $kids; } elseif ( $output == ARRAY_A ) { $weeuns = array(); foreach ( (array) $kids as $kid ) { $weeuns[$kid->ID] = get_object_vars($kids[$kid->ID]); } return $weeuns; } elseif ( $output == ARRAY_N ) { $babes = array(); foreach ( (array) $kids as $kid ) { $babes[$kid->ID] = array_values(get_object_vars($kids[$kid->ID])); } return $babes; } else { return $kids; } } /** * Get extended entry info (). * * There should not be any space after the second dash and before the word * 'more'. There can be text or space(s) after the word 'more', but won't be * referenced. * * The returned array has 'main', 'extended', and 'more_text' keys. Main has the text before * the ``. The 'extended' key has the content after the * `` comment. The 'more_text' key has the custom "Read More" text. * * @since 1.0.0 * * @param string $post Post content. * @return array Post before ('main'), after ('extended'), and custom read more ('more_text'). */ function get_extended( $post ) { //Match the new style more links. if ( preg_match('//', $post, $matches) ) { list($main, $extended) = explode($matches[0], $post, 2); $more_text = $matches[1]; } else { $main = $post; $extended = ''; $more_text = ''; } // leading and trailing whitespace. $main = preg_replace('/^[\s]*(.*)[\s]*$/', '\\1', $main); $extended = preg_replace('/^[\s]*(.*)[\s]*$/', '\\1', $extended); $more_text = preg_replace('/^[\s]*(.*)[\s]*$/', '\\1', $more_text); return array( 'main' => $main, 'extended' => $extended, 'more_text' => $more_text ); } /** * Retrieves post data given a post ID or post object. * * See {@link sanitize_post()} for optional $filter values. Also, the parameter * $post, must be given as a variable, since it is passed by reference. * * @since 1.5.1 * * @global WP_Post $post * * @param int|WP_Post|null $post Optional. Post ID or post object. Defaults to global $post. * @param string $output Optional, default is Object. Accepts OBJECT, ARRAY_A, or ARRAY_N. * Default OBJECT. * @param string $filter Optional. Type of filter to apply. Accepts 'raw', 'edit', 'db', * or 'display'. Default 'raw'. * @return WP_Post|array|null Type corresponding to $output on success or null on failure. * When $output is OBJECT, a `WP_Post` instance is returned. */ function get_post( $post = null, $output = OBJECT, $filter = 'raw' ) { if ( empty( $post ) && isset( $GLOBALS['post'] ) ) $post = $GLOBALS['post']; if ( $post instanceof WP_Post ) { $_post = $post; } elseif ( is_object( $post ) ) { if ( empty( $post->filter ) ) { $_post = sanitize_post( $post, 'raw' ); $_post = new WP_Post( $_post ); } elseif ( 'raw' == $post->filter ) { $_post = new WP_Post( $post ); } else { $_post = WP_Post::get_instance( $post->ID ); } } else { $_post = WP_Post::get_instance( $post ); } if ( ! $_post ) return null; $_post = $_post->filter( $filter ); if ( $output == ARRAY_A ) return $_post->to_array(); elseif ( $output == ARRAY_N ) return array_values( $_post->to_array() ); return $_post; } /** * Retrieve ancestors of a post. * * @since 2.5.0 * * @param int|WP_Post $post Post ID or post object. * @return array Ancestor IDs or empty array if none are found. */ function get_post_ancestors( $post ) { $post = get_post( $post ); if ( ! $post || empty( $post->post_parent ) || $post->post_parent == $post->ID ) return array(); $ancestors = array(); $id = $ancestors[] = $post->post_parent; while ( $ancestor = get_post( $id ) ) { // Loop detection: If the ancestor has been seen before, break. if ( empty( $ancestor->post_parent ) || ( $ancestor->post_parent == $post->ID ) || in_array( $ancestor->post_parent, $ancestors ) ) break; $id = $ancestors[] = $ancestor->post_parent; } return $ancestors; } /** * Retrieve data from a post field based on Post ID. * * Examples of the post field will be, 'post_type', 'post_status', 'post_content', * etc and based off of the post object property or key names. * * The context values are based off of the taxonomy filter functions and * supported values are found within those functions. * * @since 2.3.0 * * @see sanitize_post_field() * * @param string $field Post field name. * @param int|WP_Post $post Post ID or post object. * @param string $context Optional. How to filter the field. Accepts 'raw', 'edit', 'db', * or 'display'. Default 'display'. * @return string The value of the post field on success, empty string on failure. */ function get_post_field( $field, $post, $context = 'display' ) { $post = get_post( $post ); if ( !$post ) return ''; if ( !isset($post->$field) ) return ''; return sanitize_post_field($field, $post->$field, $post->ID, $context); } /** * Retrieve the mime type of an attachment based on the ID. * * This function can be used with any post type, but it makes more sense with * attachments. * * @since 2.0.0 * * @param int|WP_Post $ID Optional. Post ID or post object. Default empty. * @return string|false The mime type on success, false on failure. */ function get_post_mime_type( $ID = '' ) { $post = get_post($ID); if ( is_object($post) ) return $post->post_mime_type; return false; } /** * Retrieve the post status based on the Post ID. * * If the post ID is of an attachment, then the parent post status will be given * instead. * * @since 2.0.0 * * @param int|WP_Post $ID Optional. Post ID or post object. Default empty. * @return string|false Post status on success, false on failure. */ function get_post_status( $ID = '' ) { $post = get_post($ID); if ( !is_object($post) ) return false; if ( 'attachment' == $post->post_type ) { if ( 'private' == $post->post_status ) return 'private'; // Unattached attachments are assumed to be published. if ( ( 'inherit' == $post->post_status ) && ( 0 == $post->post_parent) ) return 'publish'; // Inherit status from the parent. if ( $post->post_parent && ( $post->ID != $post->post_parent ) ) { $parent_post_status = get_post_status( $post->post_parent ); if ( 'trash' == $parent_post_status ) { return get_post_meta( $post->post_parent, '_wp_trash_meta_status', true ); } else { return $parent_post_status; } } } /** * Filter the post status. * * @since 4.4.0 * * @param string $post_status The post status. * @param WP_Post $post The post object. */ return apply_filters( 'get_post_status', $post->post_status, $post ); } /** * Retrieve all of the WordPress supported post statuses. * * Posts have a limited set of valid status values, this provides the * post_status values and descriptions. * * @since 2.5.0 * * @return array List of post statuses. */ function get_post_statuses() { $status = array( 'draft' => __( 'Draft' ), 'pending' => __( 'Pending Review' ), 'private' => __( 'Private' ), 'publish' => __( 'Published' ) ); return $status; } /** * Retrieve all of the WordPress support page statuses. * * Pages have a limited set of valid status values, this provides the * post_status values and descriptions. * * @since 2.5.0 * * @return array List of page statuses. */ function get_page_statuses() { $status = array( 'draft' => __( 'Draft' ), 'private' => __( 'Private' ), 'publish' => __( 'Published' ) ); return $status; } /** * Register a post status. Do not use before init. * * A simple function for creating or modifying a post status based on the * parameters given. The function will accept an array (second optional * parameter), along with a string for the post status name. * * Arguments prefixed with an _underscore shouldn't be used by plugins and themes. * * @since 3.0.0 * @global array $wp_post_statuses Inserts new post status object into the list * * @param string $post_status Name of the post status. * @param array|string $args { * Optional. Array or string of post status arguments. * * @type bool|string $label A descriptive name for the post status marked * for translation. Defaults to value of $post_status. * @type bool|array $label_count Descriptive text to use for nooped plurals. * Default array of $label, twice * @type bool $exclude_from_search Whether to exclude posts with this post status * from search results. Default is value of $internal. * @type bool $_builtin Whether the status is built-in. Core-use only. * Default false. * @type bool $public Whether posts of this status should be shown * in the front end of the site. Default false. * @type bool $internal Whether the status is for internal use only. * Default false. * @type bool $protected Whether posts with this status should be protected. * Default false. * @type bool $private Whether posts with this status should be private. * Default false. * @type bool $publicly_queryable Whether posts with this status should be publicly- * queryable. Default is value of $public. * @type bool $show_in_admin_all_list Whether to include posts in the edit listing for * their post type. Default is value of $internal. * @type bool $show_in_admin_status_list Show in the list of statuses with post counts at * the top of the edit listings, * e.g. All (12) | Published (9) | My Custom Status (2) * Default is value of $internal. * } * @return object */ function register_post_status( $post_status, $args = array() ) { global $wp_post_statuses; if (!is_array($wp_post_statuses)) $wp_post_statuses = array(); // Args prefixed with an underscore are reserved for internal use. $defaults = array( 'label' => false, 'label_count' => false, 'exclude_from_search' => null, '_builtin' => false, 'public' => null, 'internal' => null, 'protected' => null, 'private' => null, 'publicly_queryable' => null, 'show_in_admin_status_list' => null, 'show_in_admin_all_list' => null, ); $args = wp_parse_args($args, $defaults); $args = (object) $args; $post_status = sanitize_key($post_status); $args->name = $post_status; // Set various defaults. if ( null === $args->public && null === $args->internal && null === $args->protected && null === $args->private ) $args->internal = true; if ( null === $args->public ) $args->public = false; if ( null === $args->private ) $args->private = false; if ( null === $args->protected ) $args->protected = false; if ( null === $args->internal ) $args->internal = false; if ( null === $args->publicly_queryable ) $args->publicly_queryable = $args->public; if ( null === $args->exclude_from_search ) $args->exclude_from_search = $args->internal; if ( null === $args->show_in_admin_all_list ) $args->show_in_admin_all_list = !$args->internal; if ( null === $args->show_in_admin_status_list ) $args->show_in_admin_status_list = !$args->internal; if ( false === $args->label ) $args->label = $post_status; if ( false === $args->label_count ) $args->label_count = array( $args->label, $args->label ); $wp_post_statuses[$post_status] = $args; return $args; } /** * Retrieve a post status object by name. * * @since 3.0.0 * * @global array $wp_post_statuses List of post statuses. * * @see register_post_status() * * @param string $post_status The name of a registered post status. * @return object|null A post status object. */ function get_post_status_object( $post_status ) { global $wp_post_statuses; if ( empty($wp_post_statuses[$post_status]) ) return null; return $wp_post_statuses[$post_status]; } /** * Get a list of post statuses. * * @since 3.0.0 * * @global array $wp_post_statuses List of post statuses. * * @see register_post_status() * * @param array|string $args Optional. Array or string of post status arguments to compare against * properties of the global `$wp_post_statuses objects`. Default empty array. * @param string $output Optional. The type of output to return, either 'names' or 'objects'. Default 'names'. * @param string $operator Optional. The logical operation to perform. 'or' means only one element * from the array needs to match; 'and' means all elements must match. * Default 'and'. * @return array A list of post status names or objects. */ function get_post_stati( $args = array(), $output = 'names', $operator = 'and' ) { global $wp_post_statuses; $field = ('names' == $output) ? 'name' : false; return wp_filter_object_list($wp_post_statuses, $args, $operator, $field); } /** * Whether the post type is hierarchical. * * A false return value might also mean that the post type does not exist. * * @since 3.0.0 * * @see get_post_type_object() * * @param string $post_type Post type name * @return bool Whether post type is hierarchical. */ function is_post_type_hierarchical( $post_type ) { if ( ! post_type_exists( $post_type ) ) return false; $post_type = get_post_type_object( $post_type ); return $post_type->hierarchical; } /** * Check if a post type is registered. * * @since 3.0.0 * * @see get_post_type_object() * * @param string $post_type Post type name. * @return bool Whether post type is registered. */ function post_type_exists( $post_type ) { return (bool) get_post_type_object( $post_type ); } /** * Retrieve the post type of the current post or of a given post. * * @since 2.1.0 * * @param int|WP_Post|null $post Optional. Post ID or post object. Default is global $post. * @return string|false Post type on success, false on failure. */ function get_post_type( $post = null ) { if ( $post = get_post( $post ) ) return $post->post_type; return false; } /** * Retrieve a post type object by name. * * @since 3.0.0 * * @global array $wp_post_types List of post types. * * @see register_post_type() * * @param string $post_type The name of a registered post type. * @return object|null A post type object. */ function get_post_type_object( $post_type ) { global $wp_post_types; if ( ! is_scalar( $post_type ) || empty( $wp_post_types[ $post_type ] ) ) { return null; } return $wp_post_types[ $post_type ]; } /** * Get a list of all registered post type objects. * * @since 2.9.0 * * @global array $wp_post_types List of post types. * * @see register_post_type() for accepted arguments. * * @param array|string $args Optional. An array of key => value arguments to match against * the post type objects. Default empty array. * @param string $output Optional. The type of output to return. Accepts post type 'names' * or 'objects'. Default 'names'. * @param string $operator Optional. The logical operation to perform. 'or' means only one * element from the array needs to match; 'and' means all elements * must match. Accepts 'or' or 'and'. Default 'and'. * @return array A list of post type names or objects. */ function get_post_types( $args = array(), $output = 'names', $operator = 'and' ) { global $wp_post_types; $field = ('names' == $output) ? 'name' : false; return wp_filter_object_list($wp_post_types, $args, $operator, $field); } /** * Register a post type. Do not use before init. * * A function for creating or modifying a post type based on the * parameters given. The function will accept an array (second optional * parameter), along with a string for the post type name. * * @since 2.9.0 * @since 3.0.0 The `show_ui` argument is now enforced on the new post screen. * @since 4.4.0 The `show_ui` argument is now enforced on the post type listing screen and post editing screen. * * @global array $wp_post_types List of post types. * @global WP_Rewrite $wp_rewrite Used for default feeds. * @global WP $wp Used to add query vars. * * @param string $post_type Post type key, must not exceed 20 characters. * @param array|string $args { * Array or string of arguments for registering a post type. * * @type string $label Name of the post type shown in the menu. Usually plural. * Default is value of $labels['name']. * @type array $labels An array of labels for this post type. If not set, post * labels are inherited for non-hierarchical types and page * labels for hierarchical ones. {@see get_post_type_labels()}. * @type string $description A short descriptive summary of what the post type is. * Default empty. * @type bool $public Whether a post type is intended for use publicly either via * the admin interface or by front-end users. While the default * settings of $exclude_from_search, $publicly_queryable, $show_ui, * and $show_in_nav_menus are inherited from public, each does not * rely on this relationship and controls a very specific intention. * Default false. * @type bool $hierarchical Whether the post type is hierarchical (e.g. page). Default false. * @type bool $exclude_from_search Whether to exclude posts with this post type from front end search * results. Default is the opposite value of $public. * @type bool $publicly_queryable Whether queries can be performed on the front end for the post type * as part of {@see parse_request()}. Endpoints would include: * * ?post_type={post_type_key} * * ?{post_type_key}={single_post_slug} * * ?{post_type_query_var}={single_post_slug} * If not set, the default is inherited from $public. * @type bool $show_ui Whether to generate and allow a UI for managing this post type in the * admin. Default is value of $public. * @type bool $show_in_menu Where to show the post type in the admin menu. To work, $show_ui * must be true. If true, the post type is shown in its own top level * menu. If false, no menu is shown. If a string of an existing top * level menu (eg. 'tools.php' or 'edit.php?post_type=page'), the post * type will be placed as a sub-menu of that. * Default is value of $show_ui. * @type bool $show_in_nav_menus Makes this post type available for selection in navigation menus. * Default is value $public. * @type bool $show_in_admin_bar Makes this post type available via the admin bar. Default is value * of $show_in_menu. * @type int $menu_position The position in the menu order the post type should appear. To work, * $show_in_menu must be true. Default null (at the bottom). * @type string $menu_icon The url to the icon to be used for this menu. Pass a base64-encoded * SVG using a data URI, which will be colored to match the color scheme * -- this should begin with 'data:image/svg+xml;base64,'. Pass the name * of a Dashicons helper class to use a font icon, e.g. * 'dashicons-chart-pie'. Pass 'none' to leave div.wp-menu-image empty * so an icon can be added via CSS. Defaults to use the posts icon. * @type string $capability_type The string to use to build the read, edit, and delete capabilities. * May be passed as an array to allow for alternative plurals when using * this argument as a base to construct the capabilities, e.g. * array('story', 'stories'). Default 'post'. * @type array $capabilities Array of capabilities for this post type. $capability_type is used * as a base to construct capabilities by default. * {@see get_post_type_capabilities()}. * @type bool $map_meta_cap Whether to use the internal default meta capability handling. * Default false. * @type array $supports An alias for calling {@see add_post_type_support()} directly. * Defaults to array containing 'title' & 'editor'. * @type callable $register_meta_box_cb Provide a callback function that sets up the meta boxes for the * edit form. Do remove_meta_box() and add_meta_box() calls in the * callback. Default null. * @type array $taxonomies An array of taxonomy identifiers that will be registered for the * post type. Taxonomies can be registered later with * {@see register_taxonomy()} or {@see register_taxonomy_for_object_type()}. * Default empty array. * @type bool|string $has_archive Whether there should be post type archives, or if a string, the * archive slug to use. Will generate the proper rewrite rules if * $rewrite is enabled. Default false. * @type bool|array $rewrite { * Triggers the handling of rewrites for this post type. To prevent rewrite, set to false. * Defaults to true, using $post_type as slug. To specify rewrite rules, an array can be * passed with any of these keys: * * @type string $slug Customize the permastruct slug. Defaults to $post_type key. * @type bool $with_front Whether the permastruct should be prepended with WP_Rewrite::$front. * Default true. * @type bool $feeds Whether the feed permastruct should be built for this post type. * Default is value of $has_archive. * @type bool $pages Whether the permastruct should provide for pagination. Default true. * @type const $ep_mask Endpoint mask to assign. If not specified and permalink_epmask is set, * inherits from $permalink_epmask. If not specified and permalink_epmask * is not set, defaults to EP_PERMALINK. * } * @type string|bool $query_var Sets the query_var key for this post type. Defaults to $post_type * key. If false, a post type cannot be loaded at * ?{query_var}={post_slug}. If specified as a string, the query * ?{query_var_string}={post_slug} will be valid. * @type bool $can_export Whether to allow this post type to be exported. Default true. * @type bool $delete_with_user Whether to delete posts of this type when deleting a user. If true, * posts of this type belonging to the user will be moved to trash * when then user is deleted. If false, posts of this type belonging * to the user will *not* be trashed or deleted. If not set (the default), * posts are trashed if post_type_supports('author'). Otherwise posts * are not trashed or deleted. Default null. * @type bool $_builtin FOR INTERNAL USE ONLY! True if this post type is a native or * "built-in" post_type. Default false. * @type string $_edit_link FOR INTERNAL USE ONLY! URL segment to use for edit link of * this post type. Default 'post.php?post=%d'. * } * @return object|WP_Error The registered post type object, or an error object. */ function register_post_type( $post_type, $args = array() ) { global $wp_post_types, $wp_rewrite, $wp; if ( ! is_array( $wp_post_types ) ) { $wp_post_types = array(); } // Sanitize post type name $post_type = sanitize_key( $post_type ); $args = wp_parse_args( $args ); /** * Filter the arguments for registering a post type. * * @since 4.4.0 * * @param array $args Array of arguments for registering a post type. * @param string $post_type Post type key. */ $args = apply_filters( 'register_post_type_args', $args, $post_type ); $has_edit_link = ! empty( $args['_edit_link'] ); // Args prefixed with an underscore are reserved for internal use. $defaults = array( 'labels' => array(), 'description' => '', 'public' => false, 'hierarchical' => false, 'exclude_from_search' => null, 'publicly_queryable' => null, 'show_ui' => null, 'show_in_menu' => null, 'show_in_nav_menus' => null, 'show_in_admin_bar' => null, 'menu_position' => null, 'menu_icon' => null, 'capability_type' => 'post', 'capabilities' => array(), 'map_meta_cap' => null, 'supports' => array(), 'register_meta_box_cb' => null, 'taxonomies' => array(), 'has_archive' => false, 'rewrite' => true, 'query_var' => true, 'can_export' => true, 'delete_with_user' => null, '_builtin' => false, '_edit_link' => 'post.php?post=%d', ); $args = array_merge( $defaults, $args ); $args = (object) $args; $args->name = $post_type; if ( empty( $post_type ) || strlen( $post_type ) > 20 ) { _doing_it_wrong( __FUNCTION__, __( 'Post type names must be between 1 and 20 characters in length.' ), '4.2' ); return new WP_Error( 'post_type_length_invalid', __( 'Post type names must be between 1 and 20 characters in length.' ) ); } // If not set, default to the setting for public. if ( null === $args->publicly_queryable ) $args->publicly_queryable = $args->public; // If not set, default to the setting for public. if ( null === $args->show_ui ) $args->show_ui = $args->public; // If not set, default to the setting for show_ui. if ( null === $args->show_in_menu || ! $args->show_ui ) $args->show_in_menu = $args->show_ui; // If not set, default to the whether the full UI is shown. if ( null === $args->show_in_admin_bar ) $args->show_in_admin_bar = (bool) $args->show_in_menu; // If not set, default to the setting for public. if ( null === $args->show_in_nav_menus ) $args->show_in_nav_menus = $args->public; // If not set, default to true if not public, false if public. if ( null === $args->exclude_from_search ) $args->exclude_from_search = !$args->public; // Back compat with quirky handling in version 3.0. #14122. if ( empty( $args->capabilities ) && null === $args->map_meta_cap && in_array( $args->capability_type, array( 'post', 'page' ) ) ) $args->map_meta_cap = true; // If not set, default to false. if ( null === $args->map_meta_cap ) $args->map_meta_cap = false; // If there's no specified edit link and no UI, remove the edit link. if ( ! $args->show_ui && ! $has_edit_link ) { $args->_edit_link = ''; } $args->cap = get_post_type_capabilities( $args ); unset( $args->capabilities ); if ( is_array( $args->capability_type ) ) $args->capability_type = $args->capability_type[0]; if ( ! empty( $args->supports ) ) { add_post_type_support( $post_type, $args->supports ); unset( $args->supports ); } elseif ( false !== $args->supports ) { // Add default features add_post_type_support( $post_type, array( 'title', 'editor' ) ); } if ( false !== $args->query_var ) { if ( true === $args->query_var ) $args->query_var = $post_type; else $args->query_var = sanitize_title_with_dashes( $args->query_var ); if ( $wp && is_post_type_viewable( $args ) ) { $wp->add_query_var( $args->query_var ); } } if ( false !== $args->rewrite && ( is_admin() || '' != get_option( 'permalink_structure' ) ) ) { if ( ! is_array( $args->rewrite ) ) $args->rewrite = array(); if ( empty( $args->rewrite['slug'] ) ) $args->rewrite['slug'] = $post_type; if ( ! isset( $args->rewrite['with_front'] ) ) $args->rewrite['with_front'] = true; if ( ! isset( $args->rewrite['pages'] ) ) $args->rewrite['pages'] = true; if ( ! isset( $args->rewrite['feeds'] ) || ! $args->has_archive ) $args->rewrite['feeds'] = (bool) $args->has_archive; if ( ! isset( $args->rewrite['ep_mask'] ) ) { if ( isset( $args->permalink_epmask ) ) $args->rewrite['ep_mask'] = $args->permalink_epmask; else $args->rewrite['ep_mask'] = EP_PERMALINK; } if ( $args->hierarchical ) add_rewrite_tag( "%$post_type%", '(.+?)', $args->query_var ? "{$args->query_var}=" : "post_type=$post_type&pagename=" ); else add_rewrite_tag( "%$post_type%", '([^/]+)', $args->query_var ? "{$args->query_var}=" : "post_type=$post_type&name=" ); if ( $args->has_archive ) { $archive_slug = $args->has_archive === true ? $args->rewrite['slug'] : $args->has_archive; if ( $args->rewrite['with_front'] ) $archive_slug = substr( $wp_rewrite->front, 1 ) . $archive_slug; else $archive_slug = $wp_rewrite->root . $archive_slug; add_rewrite_rule( "{$archive_slug}/?$", "index.php?post_type=$post_type", 'top' ); if ( $args->rewrite['feeds'] && $wp_rewrite->feeds ) { $feeds = '(' . trim( implode( '|', $wp_rewrite->feeds ) ) . ')'; add_rewrite_rule( "{$archive_slug}/feed/$feeds/?$", "index.php?post_type=$post_type" . '&feed=$matches[1]', 'top' ); add_rewrite_rule( "{$archive_slug}/$feeds/?$", "index.php?post_type=$post_type" . '&feed=$matches[1]', 'top' ); } if ( $args->rewrite['pages'] ) add_rewrite_rule( "{$archive_slug}/{$wp_rewrite->pagination_base}/([0-9]{1,})/?$", "index.php?post_type=$post_type" . '&paged=$matches[1]', 'top' ); } $permastruct_args = $args->rewrite; $permastruct_args['feed'] = $permastruct_args['feeds']; add_permastruct( $post_type, "{$args->rewrite['slug']}/%$post_type%", $permastruct_args ); } // Register the post type meta box if a custom callback was specified. if ( $args->register_meta_box_cb ) add_action( 'add_meta_boxes_' . $post_type, $args->register_meta_box_cb, 10, 1 ); $args->labels = get_post_type_labels( $args ); $args->label = $args->labels->name; $wp_post_types[ $post_type ] = $args; add_action( 'future_' . $post_type, '_future_post_hook', 5, 2 ); foreach ( $args->taxonomies as $taxonomy ) { register_taxonomy_for_object_type( $taxonomy, $post_type ); } /** * Fires after a post type is registered. * * @since 3.3.0 * * @param string $post_type Post type. * @param object $args Arguments used to register the post type. */ do_action( 'registered_post_type', $post_type, $args ); return $args; } /** * Build an object with all post type capabilities out of a post type object * * Post type capabilities use the 'capability_type' argument as a base, if the * capability is not set in the 'capabilities' argument array or if the * 'capabilities' argument is not supplied. * * The capability_type argument can optionally be registered as an array, with * the first value being singular and the second plural, e.g. array('story, 'stories') * Otherwise, an 's' will be added to the value for the plural form. After * registration, capability_type will always be a string of the singular value. * * By default, seven keys are accepted as part of the capabilities array: * * - edit_post, read_post, and delete_post are meta capabilities, which are then * generally mapped to corresponding primitive capabilities depending on the * context, which would be the post being edited/read/deleted and the user or * role being checked. Thus these capabilities would generally not be granted * directly to users or roles. * * - edit_posts - Controls whether objects of this post type can be edited. * - edit_others_posts - Controls whether objects of this type owned by other users * can be edited. If the post type does not support an author, then this will * behave like edit_posts. * - publish_posts - Controls publishing objects of this post type. * - read_private_posts - Controls whether private objects can be read. * * These four primitive capabilities are checked in core in various locations. * There are also seven other primitive capabilities which are not referenced * directly in core, except in map_meta_cap(), which takes the three aforementioned * meta capabilities and translates them into one or more primitive capabilities * that must then be checked against the user or role, depending on the context. * * - read - Controls whether objects of this post type can be read. * - delete_posts - Controls whether objects of this post type can be deleted. * - delete_private_posts - Controls whether private objects can be deleted. * - delete_published_posts - Controls whether published objects can be deleted. * - delete_others_posts - Controls whether objects owned by other users can be * can be deleted. If the post type does not support an author, then this will * behave like delete_posts. * - edit_private_posts - Controls whether private objects can be edited. * - edit_published_posts - Controls whether published objects can be edited. * * These additional capabilities are only used in map_meta_cap(). Thus, they are * only assigned by default if the post type is registered with the 'map_meta_cap' * argument set to true (default is false). * * @since 3.0.0 * * @see register_post_type() * @see map_meta_cap() * * @param object $args Post type registration arguments. * @return object object with all the capabilities as member variables. */ function get_post_type_capabilities( $args ) { if ( ! is_array( $args->capability_type ) ) $args->capability_type = array( $args->capability_type, $args->capability_type . 's' ); // Singular base for meta capabilities, plural base for primitive capabilities. list( $singular_base, $plural_base ) = $args->capability_type; $default_capabilities = array( // Meta capabilities 'edit_post' => 'edit_' . $singular_base, 'read_post' => 'read_' . $singular_base, 'delete_post' => 'delete_' . $singular_base, // Primitive capabilities used outside of map_meta_cap(): 'edit_posts' => 'edit_' . $plural_base, 'edit_others_posts' => 'edit_others_' . $plural_base, 'publish_posts' => 'publish_' . $plural_base, 'read_private_posts' => 'read_private_' . $plural_base, ); // Primitive capabilities used within map_meta_cap(): if ( $args->map_meta_cap ) { $default_capabilities_for_mapping = array( 'read' => 'read', 'delete_posts' => 'delete_' . $plural_base, 'delete_private_posts' => 'delete_private_' . $plural_base, 'delete_published_posts' => 'delete_published_' . $plural_base, 'delete_others_posts' => 'delete_others_' . $plural_base, 'edit_private_posts' => 'edit_private_' . $plural_base, 'edit_published_posts' => 'edit_published_' . $plural_base, ); $default_capabilities = array_merge( $default_capabilities, $default_capabilities_for_mapping ); } $capabilities = array_merge( $default_capabilities, $args->capabilities ); // Post creation capability simply maps to edit_posts by default: if ( ! isset( $capabilities['create_posts'] ) ) $capabilities['create_posts'] = $capabilities['edit_posts']; // Remember meta capabilities for future reference. if ( $args->map_meta_cap ) _post_type_meta_capabilities( $capabilities ); return (object) $capabilities; } /** * Store or return a list of post type meta caps for map_meta_cap(). * * @since 3.1.0 * @access private * * @staticvar array $meta_caps * * @param array|void $capabilities Post type meta capabilities. */ function _post_type_meta_capabilities( $capabilities = null ) { static $meta_caps = array(); if ( null === $capabilities ) return $meta_caps; foreach ( $capabilities as $core => $custom ) { if ( in_array( $core, array( 'read_post', 'delete_post', 'edit_post' ) ) ) $meta_caps[ $custom ] = $core; } } /** * Build an object with all post type labels out of a post type object * * Accepted keys of the label array in the post type object: * * - name - general name for the post type, usually plural. The same and overridden * by $post_type_object->label. Default is Posts/Pages * - singular_name - name for one object of this post type. Default is Post/Page * - add_new - Default is Add New for both hierarchical and non-hierarchical types. * When internationalizing this string, please use a gettext context * {@link https://codex.wordpress.org/I18n_for_WordPress_Developers#Disambiguation_by_context} * matching your post type. Example: `_x( 'Add New', 'product' );`. * - add_new_item - Default is Add New Post/Add New Page. * - edit_item - Default is Edit Post/Edit Page. * - new_item - Default is New Post/New Page. * - view_item - Default is View Post/View Page. * - search_items - Default is Search Posts/Search Pages. * - not_found - Default is No posts found/No pages found. * - not_found_in_trash - Default is No posts found in Trash/No pages found in Trash. * - parent_item_colon - This string isn't used on non-hierarchical types. In hierarchical * ones the default is 'Parent Page:'. * - all_items - String for the submenu. Default is All Posts/All Pages. * - archives - String for use with archives in nav menus. Default is Post Archives/Page Archives. * - insert_into_item - String for the media frame button. Default is Insert into post/Insert into page. * - uploaded_to_this_item - String for the media frame filter. Default is Uploaded to this post/Uploaded to this page. * - featured_image - Default is Featured Image. * - set_featured_image - Default is Set featured image. * - remove_featured_image - Default is Remove featured image. * - use_featured_image - Default is Use as featured image. * - menu_name - Default is the same as `name`. * - filter_items_list - String for the table views hidden heading. * - items_list_navigation - String for the table pagination hidden heading. * - items_list - String for the table hidden heading. * * Above, the first default value is for non-hierarchical post types (like posts) * and the second one is for hierarchical post types (like pages). * * @since 3.0.0 * @since 4.3.0 Added the `featured_image`, `set_featured_image`, `remove_featured_image`, * and `use_featured_image` labels. * @since 4.4.0 Added the `insert_into_item`, `uploaded_to_this_item`, `filter_items_list`, * `items_list_navigation`, and `items_list` labels. * * @access private * * @param object $post_type_object Post type object. * @return object object with all the labels as member variables. */ function get_post_type_labels( $post_type_object ) { $nohier_vs_hier_defaults = array( 'name' => array( _x('Posts', 'post type general name'), _x('Pages', 'post type general name') ), 'singular_name' => array( _x('Post', 'post type singular name'), _x('Page', 'post type singular name') ), 'add_new' => array( _x('Add New', 'post'), _x('Add New', 'page') ), 'add_new_item' => array( __('Add New Post'), __('Add New Page') ), 'edit_item' => array( __('Edit Post'), __('Edit Page') ), 'new_item' => array( __('New Post'), __('New Page') ), 'view_item' => array( __('View Post'), __('View Page') ), 'search_items' => array( __('Search Posts'), __('Search Pages') ), 'not_found' => array( __('No posts found.'), __('No pages found.') ), 'not_found_in_trash' => array( __('No posts found in Trash.'), __('No pages found in Trash.') ), 'parent_item_colon' => array( null, __('Parent Page:') ), 'all_items' => array( __( 'All Posts' ), __( 'All Pages' ) ), 'archives' => array( __( 'Post Archives' ), __( 'Page Archives' ) ), 'insert_into_item' => array( __( 'Insert into post' ), __( 'Insert into page' ) ), 'uploaded_to_this_item' => array( __( 'Uploaded to this post' ), __( 'Uploaded to this page' ) ), 'featured_image' => array( __( 'Featured Image' ), __( 'Featured Image' ) ), 'set_featured_image' => array( __( 'Set featured image' ), __( 'Set featured image' ) ), 'remove_featured_image' => array( __( 'Remove featured image' ), __( 'Remove featured image' ) ), 'use_featured_image' => array( __( 'Use as featured image' ), __( 'Use as featured image' ) ), 'filter_items_list' => array( __( 'Filter posts list' ), __( 'Filter pages list' ) ), 'items_list_navigation' => array( __( 'Posts list navigation' ), __( 'Pages list navigation' ) ), 'items_list' => array( __( 'Posts list' ), __( 'Pages list' ) ), ); $nohier_vs_hier_defaults['menu_name'] = $nohier_vs_hier_defaults['name']; $labels = _get_custom_object_labels( $post_type_object, $nohier_vs_hier_defaults ); $post_type = $post_type_object->name; $default_labels = clone $labels; /** * Filter the labels of a specific post type. * * The dynamic portion of the hook name, `$post_type`, refers to * the post type slug. * * @since 3.5.0 * * @see get_post_type_labels() for the full list of labels. * * @param object $labels Object with labels for the post type as member variables. */ $labels = apply_filters( "post_type_labels_{$post_type}", $labels ); // Ensure that the filtered labels contain all required default values. $labels = (object) array_merge( (array) $default_labels, (array) $labels ); return $labels; } /** * Build an object with custom-something object (post type, taxonomy) labels * out of a custom-something object * * @since 3.0.0 * @access private * * @param object $object A custom-something object. * @param array $nohier_vs_hier_defaults Hierarchical vs non-hierarchical default labels. * @return object Object containing labels for the given custom-something object. */ function _get_custom_object_labels( $object, $nohier_vs_hier_defaults ) { $object->labels = (array) $object->labels; if ( isset( $object->label ) && empty( $object->labels['name'] ) ) $object->labels['name'] = $object->label; if ( !isset( $object->labels['singular_name'] ) && isset( $object->labels['name'] ) ) $object->labels['singular_name'] = $object->labels['name']; if ( ! isset( $object->labels['name_admin_bar'] ) ) $object->labels['name_admin_bar'] = isset( $object->labels['singular_name'] ) ? $object->labels['singular_name'] : $object->name; if ( !isset( $object->labels['menu_name'] ) && isset( $object->labels['name'] ) ) $object->labels['menu_name'] = $object->labels['name']; if ( !isset( $object->labels['all_items'] ) && isset( $object->labels['menu_name'] ) ) $object->labels['all_items'] = $object->labels['menu_name']; if ( !isset( $object->labels['archives'] ) && isset( $object->labels['all_items'] ) ) { $object->labels['archives'] = $object->labels['all_items']; } $defaults = array(); foreach ( $nohier_vs_hier_defaults as $key => $value ) { $defaults[$key] = $object->hierarchical ? $value[1] : $value[0]; } $labels = array_merge( $defaults, $object->labels ); $object->labels = (object) $object->labels; return (object) $labels; } /** * Add submenus for post types. * * @access private * @since 3.1.0 */ function _add_post_type_submenus() { foreach ( get_post_types( array( 'show_ui' => true ) ) as $ptype ) { $ptype_obj = get_post_type_object( $ptype ); // Sub-menus only. if ( ! $ptype_obj->show_in_menu || $ptype_obj->show_in_menu === true ) continue; add_submenu_page( $ptype_obj->show_in_menu, $ptype_obj->labels->name, $ptype_obj->labels->all_items, $ptype_obj->cap->edit_posts, "edit.php?post_type=$ptype" ); } } /** * Register support of certain features for a post type. * * All core features are directly associated with a functional area of the edit * screen, such as the editor or a meta box. Features include: 'title', 'editor', * 'comments', 'revisions', 'trackbacks', 'author', 'excerpt', 'page-attributes', * 'thumbnail', 'custom-fields', and 'post-formats'. * * Additionally, the 'revisions' feature dictates whether the post type will * store revisions, and the 'comments' feature dictates whether the comments * count will show on the edit screen. * * @since 3.0.0 * * @global array $_wp_post_type_features * * @param string $post_type The post type for which to add the feature. * @param string|array $feature The feature being added, accepts an array of * feature strings or a single string. */ function add_post_type_support( $post_type, $feature ) { global $_wp_post_type_features; $features = (array) $feature; foreach ($features as $feature) { if ( func_num_args() == 2 ) $_wp_post_type_features[$post_type][$feature] = true; else $_wp_post_type_features[$post_type][$feature] = array_slice( func_get_args(), 2 ); } } /** * Remove support for a feature from a post type. * * @since 3.0.0 * * @global array $_wp_post_type_features * * @param string $post_type The post type for which to remove the feature. * @param string $feature The feature being removed. */ function remove_post_type_support( $post_type, $feature ) { global $_wp_post_type_features; unset( $_wp_post_type_features[ $post_type ][ $feature ] ); } /** * Get all the post type features * * @since 3.4.0 * * @global array $_wp_post_type_features * * @param string $post_type The post type. * @return array Post type supports list. */ function get_all_post_type_supports( $post_type ) { global $_wp_post_type_features; if ( isset( $_wp_post_type_features[$post_type] ) ) return $_wp_post_type_features[$post_type]; return array(); } /** * Check a post type's support for a given feature. * * @since 3.0.0 * * @global array $_wp_post_type_features * * @param string $post_type The post type being checked. * @param string $feature The feature being checked. * @return bool Whether the post type supports the given feature. */ function post_type_supports( $post_type, $feature ) { global $_wp_post_type_features; return ( isset( $_wp_post_type_features[$post_type][$feature] ) ); } /** * Update the post type for the post ID. * * The page or post cache will be cleaned for the post ID. * * @since 2.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $post_id Optional. Post ID to change post type. Default 0. * @param string $post_type Optional. Post type. Accepts 'post' or 'page' to * name a few. Default 'post'. * @return int|false Amount of rows changed. Should be 1 for success and 0 for failure. */ function set_post_type( $post_id = 0, $post_type = 'post' ) { global $wpdb; $post_type = sanitize_post_field('post_type', $post_type, $post_id, 'db'); $return = $wpdb->update( $wpdb->posts, array('post_type' => $post_type), array('ID' => $post_id) ); clean_post_cache( $post_id ); return $return; } /** * Determines whether a post type is considered "viewable". * * For built-in post types such as posts and pages, the 'public' value will be evaluated. * For all others, the 'publicly_queryable' value will be used. * * @since 4.4.0 * * @param object $post_type_object Post type object. * @return bool Whether the post type should be considered viewable. */ function is_post_type_viewable( $post_type_object ) { return $post_type_object->publicly_queryable || ( $post_type_object->_builtin && $post_type_object->public ); } /** * Retrieve list of latest posts or posts matching criteria. * * The defaults are as follows: * * @since 1.2.0 * * @see WP_Query::parse_query() * * @param array $args { * Optional. Arguments to retrieve posts. See WP_Query::parse_query() for all * available arguments. * * @type int $numberposts Total number of posts to retrieve. Is an alias of $posts_per_page * in WP_Query. Accepts -1 for all. Default 5. * @type int|string $category Category ID or comma-separated list of IDs (this or any children). * Is an alias of $cat in WP_Query. Default 0. * @type array $include An array of post IDs to retrieve, sticky posts will be included. * Is an alias of $post__in in WP_Query. Default empty array. * @type array $exclude An array of post IDs not to retrieve. Default empty array. * @type bool $suppress_filters Whether to suppress filters. Default true. * } * @return array List of posts. */ function get_posts( $args = null ) { $defaults = array( 'numberposts' => 5, 'category' => 0, 'orderby' => 'date', 'order' => 'DESC', 'include' => array(), 'exclude' => array(), 'meta_key' => '', 'meta_value' =>'', 'post_type' => 'post', 'suppress_filters' => true ); $r = wp_parse_args( $args, $defaults ); if ( empty( $r['post_status'] ) ) $r['post_status'] = ( 'attachment' == $r['post_type'] ) ? 'inherit' : 'publish'; if ( ! empty($r['numberposts']) && empty($r['posts_per_page']) ) $r['posts_per_page'] = $r['numberposts']; if ( ! empty($r['category']) ) $r['cat'] = $r['category']; if ( ! empty($r['include']) ) { $incposts = wp_parse_id_list( $r['include'] ); $r['posts_per_page'] = count($incposts); // only the number of posts included $r['post__in'] = $incposts; } elseif ( ! empty($r['exclude']) ) $r['post__not_in'] = wp_parse_id_list( $r['exclude'] ); $r['ignore_sticky_posts'] = true; $r['no_found_rows'] = true; $get_posts = new WP_Query; return $get_posts->query($r); } // // Post meta functions // /** * Add meta data field to a post. * * Post meta data is called "Custom Fields" on the Administration Screen. * * @since 1.5.0 * * @param int $post_id Post ID. * @param string $meta_key Metadata name. * @param mixed $meta_value Metadata value. Must be serializable if non-scalar. * @param bool $unique Optional. Whether the same key should not be added. * Default false. * @return int|false Meta ID on success, false on failure. */ function add_post_meta( $post_id, $meta_key, $meta_value, $unique = false ) { // Make sure meta is added to the post, not a revision. if ( $the_post = wp_is_post_revision($post_id) ) $post_id = $the_post; return add_metadata('post', $post_id, $meta_key, $meta_value, $unique); } /** * Remove metadata matching criteria from a post. * * You can match based on the key, or key and value. Removing based on key and * value, will keep from removing duplicate metadata with the same key. It also * allows removing all metadata matching key, if needed. * * @since 1.5.0 * * @param int $post_id Post ID. * @param string $meta_key Metadata name. * @param mixed $meta_value Optional. Metadata value. Must be serializable if * non-scalar. Default empty. * @return bool True on success, false on failure. */ function delete_post_meta( $post_id, $meta_key, $meta_value = '' ) { // Make sure meta is added to the post, not a revision. if ( $the_post = wp_is_post_revision($post_id) ) $post_id = $the_post; return delete_metadata('post', $post_id, $meta_key, $meta_value); } /** * Retrieve post meta field for a post. * * @since 1.5.0 * * @param int $post_id Post ID. * @param string $key Optional. The meta key to retrieve. By default, returns * data for all keys. Default empty. * @param bool $single Optional. Whether to return a single value. Default false. * @return mixed Will be an array if $single is false. Will be value of meta data * field if $single is true. */ function get_post_meta( $post_id, $key = '', $single = false ) { return get_metadata('post', $post_id, $key, $single); } /** * Update post meta field based on post ID. * * Use the $prev_value parameter to differentiate between meta fields with the * same key and post ID. * * If the meta field for the post does not exist, it will be added. * * @since 1.5.0 * * @param int $post_id Post ID. * @param string $meta_key Metadata key. * @param mixed $meta_value Metadata value. Must be serializable if non-scalar. * @param mixed $prev_value Optional. Previous value to check before removing. * Default empty. * @return int|bool Meta ID if the key didn't exist, true on successful update, * false on failure. */ function update_post_meta( $post_id, $meta_key, $meta_value, $prev_value = '' ) { // Make sure meta is added to the post, not a revision. if ( $the_post = wp_is_post_revision($post_id) ) $post_id = $the_post; return update_metadata('post', $post_id, $meta_key, $meta_value, $prev_value); } /** * Delete everything from post meta matching meta key. * * @since 2.3.0 * * @param string $post_meta_key Key to search for when deleting. * @return bool Whether the post meta key was deleted from the database. */ function delete_post_meta_by_key( $post_meta_key ) { return delete_metadata( 'post', null, $post_meta_key, '', true ); } /** * Retrieve post meta fields, based on post ID. * * The post meta fields are retrieved from the cache where possible, * so the function is optimized to be called more than once. * * @since 1.2.0 * * @param int $post_id Optional. Post ID. Default is ID of the global $post. * @return array Post meta for the given post. */ function get_post_custom( $post_id = 0 ) { $post_id = absint( $post_id ); if ( ! $post_id ) $post_id = get_the_ID(); return get_post_meta( $post_id ); } /** * Retrieve meta field names for a post. * * If there are no meta fields, then nothing (null) will be returned. * * @since 1.2.0 * * @param int $post_id Optional. Post ID. Default is ID of the global $post. * @return array|void Array of the keys, if retrieved. */ function get_post_custom_keys( $post_id = 0 ) { $custom = get_post_custom( $post_id ); if ( !is_array($custom) ) return; if ( $keys = array_keys($custom) ) return $keys; } /** * Retrieve values for a custom post field. * * The parameters must not be considered optional. All of the post meta fields * will be retrieved and only the meta field key values returned. * * @since 1.2.0 * * @param string $key Optional. Meta field key. Default empty. * @param int $post_id Optional. Post ID. Default is ID of the global $post. * @return array|null Meta field values. */ function get_post_custom_values( $key = '', $post_id = 0 ) { if ( !$key ) return null; $custom = get_post_custom($post_id); return isset($custom[$key]) ? $custom[$key] : null; } /** * Check if post is sticky. * * Sticky posts should remain at the top of The Loop. If the post ID is not * given, then The Loop ID for the current post will be used. * * @since 2.7.0 * * @param int $post_id Optional. Post ID. Default is ID of the global $post. * @return bool Whether post is sticky. */ function is_sticky( $post_id = 0 ) { $post_id = absint( $post_id ); if ( ! $post_id ) $post_id = get_the_ID(); $stickies = get_option( 'sticky_posts' ); if ( ! is_array( $stickies ) ) return false; if ( in_array( $post_id, $stickies ) ) return true; return false; } /** * Sanitize every post field. * * If the context is 'raw', then the post object or array will get minimal * sanitization of the integer fields. * * @since 2.3.0 * * @see sanitize_post_field() * * @param object|WP_Post|array $post The Post Object or Array * @param string $context Optional. How to sanitize post fields. * Accepts 'raw', 'edit', 'db', or 'display'. * Default 'display'. * @return object|WP_Post|array The now sanitized Post Object or Array (will be the * same type as $post). */ function sanitize_post( $post, $context = 'display' ) { if ( is_object($post) ) { // Check if post already filtered for this context. if ( isset($post->filter) && $context == $post->filter ) return $post; if ( !isset($post->ID) ) $post->ID = 0; foreach ( array_keys(get_object_vars($post)) as $field ) $post->$field = sanitize_post_field($field, $post->$field, $post->ID, $context); $post->filter = $context; } elseif ( is_array( $post ) ) { // Check if post already filtered for this context. if ( isset($post['filter']) && $context == $post['filter'] ) return $post; if ( !isset($post['ID']) ) $post['ID'] = 0; foreach ( array_keys($post) as $field ) $post[$field] = sanitize_post_field($field, $post[$field], $post['ID'], $context); $post['filter'] = $context; } return $post; } /** * Sanitize post field based on context. * * Possible context values are: 'raw', 'edit', 'db', 'display', 'attribute' and * 'js'. The 'display' context is used by default. 'attribute' and 'js' contexts * are treated like 'display' when calling filters. * * @since 2.3.0 * @since 4.4.0 Like `sanitize_post()`, `$context` defaults to 'display'. * * @param string $field The Post Object field name. * @param mixed $value The Post Object value. * @param int $post_id Post ID. * @param string $context Optional. How to sanitize post fields. Looks for 'raw', 'edit', * 'db', 'display', 'attribute' and 'js'. Default 'display'. * @return mixed Sanitized value. */ function sanitize_post_field( $field, $value, $post_id, $context = 'display' ) { $int_fields = array('ID', 'post_parent', 'menu_order'); if ( in_array($field, $int_fields) ) $value = (int) $value; // Fields which contain arrays of integers. $array_int_fields = array( 'ancestors' ); if ( in_array($field, $array_int_fields) ) { $value = array_map( 'absint', $value); return $value; } if ( 'raw' == $context ) return $value; $prefixed = false; if ( false !== strpos($field, 'post_') ) { $prefixed = true; $field_no_prefix = str_replace('post_', '', $field); } if ( 'edit' == $context ) { $format_to_edit = array('post_content', 'post_excerpt', 'post_title', 'post_password'); if ( $prefixed ) { /** * Filter the value of a specific post field to edit. * * The dynamic portion of the hook name, `$field`, refers to the post * field name. * * @since 2.3.0 * * @param mixed $value Value of the post field. * @param int $post_id Post ID. */ $value = apply_filters( "edit_{$field}", $value, $post_id ); /** * Filter the value of a specific post field to edit. * * The dynamic portion of the hook name, `$field_no_prefix`, refers to * the post field name. * * @since 2.3.0 * * @param mixed $value Value of the post field. * @param int $post_id Post ID. */ $value = apply_filters( "{$field_no_prefix}_edit_pre", $value, $post_id ); } else { $value = apply_filters( "edit_post_{$field}", $value, $post_id ); } if ( in_array($field, $format_to_edit) ) { if ( 'post_content' == $field ) $value = format_to_edit($value, user_can_richedit()); else $value = format_to_edit($value); } else { $value = esc_attr($value); } } elseif ( 'db' == $context ) { if ( $prefixed ) { /** * Filter the value of a specific post field before saving. * * The dynamic portion of the hook name, `$field`, refers to the post * field name. * * @since 2.3.0 * * @param mixed $value Value of the post field. */ $value = apply_filters( "pre_{$field}", $value ); /** * Filter the value of a specific field before saving. * * The dynamic portion of the hook name, `$field_no_prefix`, refers * to the post field name. * * @since 2.3.0 * * @param mixed $value Value of the post field. */ $value = apply_filters( "{$field_no_prefix}_save_pre", $value ); } else { $value = apply_filters( "pre_post_{$field}", $value ); /** * Filter the value of a specific post field before saving. * * The dynamic portion of the hook name, `$field`, refers to the post * field name. * * @since 2.3.0 * * @param mixed $value Value of the post field. */ $value = apply_filters( "{$field}_pre", $value ); } } else { // Use display filters by default. if ( $prefixed ) { /** * Filter the value of a specific post field for display. * * The dynamic portion of the hook name, `$field`, refers to the post * field name. * * @since 2.3.0 * * @param mixed $value Value of the prefixed post field. * @param int $post_id Post ID. * @param string $context Context for how to sanitize the field. Possible * values include 'raw', 'edit', 'db', 'display', * 'attribute' and 'js'. */ $value = apply_filters( $field, $value, $post_id, $context ); } else { $value = apply_filters( "post_{$field}", $value, $post_id, $context ); } } if ( 'attribute' == $context ) $value = esc_attr($value); elseif ( 'js' == $context ) $value = esc_js($value); return $value; } /** * Make a post sticky. * * Sticky posts should be displayed at the top of the front page. * * @since 2.7.0 * * @param int $post_id Post ID. */ function stick_post( $post_id ) { $stickies = get_option('sticky_posts'); if ( !is_array($stickies) ) $stickies = array($post_id); if ( ! in_array($post_id, $stickies) ) $stickies[] = $post_id; update_option('sticky_posts', $stickies); } /** * Un-stick a post. * * Sticky posts should be displayed at the top of the front page. * * @since 2.7.0 * * @param int $post_id Post ID. */ function unstick_post( $post_id ) { $stickies = get_option('sticky_posts'); if ( !is_array($stickies) ) return; if ( ! in_array($post_id, $stickies) ) return; $offset = array_search($post_id, $stickies); if ( false === $offset ) return; array_splice($stickies, $offset, 1); update_option('sticky_posts', $stickies); } /** * Return the cache key for wp_count_posts() based on the passed arguments. * * @since 3.9.0 * * @param string $type Optional. Post type to retrieve count Default 'post'. * @param string $perm Optional. 'readable' or empty. Default empty. * @return string The cache key. */ function _count_posts_cache_key( $type = 'post', $perm = '' ) { $cache_key = 'posts-' . $type; if ( 'readable' == $perm && is_user_logged_in() ) { $post_type_object = get_post_type_object( $type ); if ( $post_type_object && ! current_user_can( $post_type_object->cap->read_private_posts ) ) { $cache_key .= '_' . $perm . '_' . get_current_user_id(); } } return $cache_key; } /** * Count number of posts of a post type and if user has permissions to view. * * This function provides an efficient method of finding the amount of post's * type a blog has. Another method is to count the amount of items in * get_posts(), but that method has a lot of overhead with doing so. Therefore, * when developing for 2.5+, use this function instead. * * The $perm parameter checks for 'readable' value and if the user can read * private posts, it will display that for the user that is signed in. * * @since 2.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $type Optional. Post type to retrieve count. Default 'post'. * @param string $perm Optional. 'readable' or empty. Default empty. * @return object Number of posts for each status. */ function wp_count_posts( $type = 'post', $perm = '' ) { global $wpdb; if ( ! post_type_exists( $type ) ) return new stdClass; $cache_key = _count_posts_cache_key( $type, $perm ); $counts = wp_cache_get( $cache_key, 'counts' ); if ( false !== $counts ) { /** This filter is documented in wp-includes/post.php */ return apply_filters( 'wp_count_posts', $counts, $type, $perm ); } $query = "SELECT post_status, COUNT( * ) AS num_posts FROM {$wpdb->posts} WHERE post_type = %s"; if ( 'readable' == $perm && is_user_logged_in() ) { $post_type_object = get_post_type_object($type); if ( ! current_user_can( $post_type_object->cap->read_private_posts ) ) { $query .= $wpdb->prepare( " AND (post_status != 'private' OR ( post_author = %d AND post_status = 'private' ))", get_current_user_id() ); } } $query .= ' GROUP BY post_status'; $results = (array) $wpdb->get_results( $wpdb->prepare( $query, $type ), ARRAY_A ); $counts = array_fill_keys( get_post_stati(), 0 ); foreach ( $results as $row ) { $counts[ $row['post_status'] ] = $row['num_posts']; } $counts = (object) $counts; wp_cache_set( $cache_key, $counts, 'counts' ); /** * Modify returned post counts by status for the current post type. * * @since 3.7.0 * * @param object $counts An object containing the current post_type's post * counts by status. * @param string $type Post type. * @param string $perm The permission to determine if the posts are 'readable' * by the current user. */ return apply_filters( 'wp_count_posts', $counts, $type, $perm ); } /** * Count number of attachments for the mime type(s). * * If you set the optional mime_type parameter, then an array will still be * returned, but will only have the item you are looking for. It does not give * you the number of attachments that are children of a post. You can get that * by counting the number of children that post has. * * @since 2.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string|array $mime_type Optional. Array or comma-separated list of * MIME patterns. Default empty. * @return object An object containing the attachment counts by mime type. */ function wp_count_attachments( $mime_type = '' ) { global $wpdb; $and = wp_post_mime_type_where( $mime_type ); $count = $wpdb->get_results( "SELECT post_mime_type, COUNT( * ) AS num_posts FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' $and GROUP BY post_mime_type", ARRAY_A ); $counts = array(); foreach ( (array) $count as $row ) { $counts[ $row['post_mime_type'] ] = $row['num_posts']; } $counts['trash'] = $wpdb->get_var( "SELECT COUNT( * ) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status = 'trash' $and"); /** * Modify returned attachment counts by mime type. * * @since 3.7.0 * * @param object $counts An object containing the attachment counts by * mime type. * @param string $mime_type The mime type pattern used to filter the attachments * counted. */ return apply_filters( 'wp_count_attachments', (object) $counts, $mime_type ); } /** * Get default post mime types. * * @since 2.9.0 * * @return array List of post mime types. */ function get_post_mime_types() { $post_mime_types = array( // array( adj, noun ) 'image' => array(__('Images'), __('Manage Images'), _n_noop('Image (%s)', 'Images (%s)')), 'audio' => array(__('Audio'), __('Manage Audio'), _n_noop('Audio (%s)', 'Audio (%s)')), 'video' => array(__('Video'), __('Manage Video'), _n_noop('Video (%s)', 'Video (%s)')), ); /** * Filter the default list of post mime types. * * @since 2.5.0 * * @param array $post_mime_types Default list of post mime types. */ return apply_filters( 'post_mime_types', $post_mime_types ); } /** * Check a MIME-Type against a list. * * If the wildcard_mime_types parameter is a string, it must be comma separated * list. If the real_mime_types is a string, it is also comma separated to * create the list. * * @since 2.5.0 * * @param string|array $wildcard_mime_types Mime types, e.g. audio/mpeg or image (same as image/*) * or flash (same as *flash*). * @param string|array $real_mime_types Real post mime type values. * @return array array(wildcard=>array(real types)). */ function wp_match_mime_types( $wildcard_mime_types, $real_mime_types ) { $matches = array(); if ( is_string( $wildcard_mime_types ) ) { $wildcard_mime_types = array_map( 'trim', explode( ',', $wildcard_mime_types ) ); } if ( is_string( $real_mime_types ) ) { $real_mime_types = array_map( 'trim', explode( ',', $real_mime_types ) ); } $patternses = array(); $wild = '[-._a-z0-9]*'; foreach ( (array) $wildcard_mime_types as $type ) { $mimes = array_map( 'trim', explode( ',', $type ) ); foreach ( $mimes as $mime ) { $regex = str_replace( '__wildcard__', $wild, preg_quote( str_replace( '*', '__wildcard__', $mime ) ) ); $patternses[][$type] = "^$regex$"; if ( false === strpos( $mime, '/' ) ) { $patternses[][$type] = "^$regex/"; $patternses[][$type] = $regex; } } } asort( $patternses ); foreach ( $patternses as $patterns ) { foreach ( $patterns as $type => $pattern ) { foreach ( (array) $real_mime_types as $real ) { if ( preg_match( "#$pattern#", $real ) && ( empty( $matches[$type] ) || false === array_search( $real, $matches[$type] ) ) ) { $matches[$type][] = $real; } } } } return $matches; } /** * Convert MIME types into SQL. * * @since 2.5.0 * * @param string|array $post_mime_types List of mime types or comma separated string * of mime types. * @param string $table_alias Optional. Specify a table alias, if needed. * Default empty. * @return string The SQL AND clause for mime searching. */ function wp_post_mime_type_where( $post_mime_types, $table_alias = '' ) { $where = ''; $wildcards = array('', '%', '%/%'); if ( is_string($post_mime_types) ) $post_mime_types = array_map('trim', explode(',', $post_mime_types)); $wheres = array(); foreach ( (array) $post_mime_types as $mime_type ) { $mime_type = preg_replace('/\s/', '', $mime_type); $slashpos = strpos($mime_type, '/'); if ( false !== $slashpos ) { $mime_group = preg_replace('/[^-*.a-zA-Z0-9]/', '', substr($mime_type, 0, $slashpos)); $mime_subgroup = preg_replace('/[^-*.+a-zA-Z0-9]/', '', substr($mime_type, $slashpos + 1)); if ( empty($mime_subgroup) ) $mime_subgroup = '*'; else $mime_subgroup = str_replace('/', '', $mime_subgroup); $mime_pattern = "$mime_group/$mime_subgroup"; } else { $mime_pattern = preg_replace('/[^-*.a-zA-Z0-9]/', '', $mime_type); if ( false === strpos($mime_pattern, '*') ) $mime_pattern .= '/*'; } $mime_pattern = preg_replace('/\*+/', '%', $mime_pattern); if ( in_array( $mime_type, $wildcards ) ) return ''; if ( false !== strpos($mime_pattern, '%') ) $wheres[] = empty($table_alias) ? "post_mime_type LIKE '$mime_pattern'" : "$table_alias.post_mime_type LIKE '$mime_pattern'"; else $wheres[] = empty($table_alias) ? "post_mime_type = '$mime_pattern'" : "$table_alias.post_mime_type = '$mime_pattern'"; } if ( !empty($wheres) ) $where = ' AND (' . join(' OR ', $wheres) . ') '; return $where; } /** * Trash or delete a post or page. * * When the post and page is permanently deleted, everything that is tied to * it is deleted also. This includes comments, post meta fields, and terms * associated with the post. * * The post or page is moved to trash instead of permanently deleted unless * trash is disabled, item is already in the trash, or $force_delete is true. * * @since 1.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * @see wp_delete_attachment() * @see wp_trash_post() * * @param int $postid Optional. Post ID. Default 0. * @param bool $force_delete Optional. Whether to bypass trash and force deletion. * Default false. * @return array|false|WP_Post False on failure. */ function wp_delete_post( $postid = 0, $force_delete = false ) { global $wpdb; if ( !$post = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d", $postid)) ) return $post; if ( !$force_delete && ( $post->post_type == 'post' || $post->post_type == 'page') && get_post_status( $postid ) != 'trash' && EMPTY_TRASH_DAYS ) return wp_trash_post( $postid ); if ( $post->post_type == 'attachment' ) return wp_delete_attachment( $postid, $force_delete ); /** * Filter whether a post deletion should take place. * * @since 4.4.0 * * @param bool $delete Whether to go forward with deletion. * @param WP_Post $post Post object. * @param bool $force_delete Whether to bypass the trash. */ $check = apply_filters( 'pre_delete_post', null, $post, $force_delete ); if ( null !== $check ) { return $check; } /** * Fires before a post is deleted, at the start of wp_delete_post(). * * @since 3.2.0 * * @see wp_delete_post() * * @param int $postid Post ID. */ do_action( 'before_delete_post', $postid ); delete_post_meta($postid,'_wp_trash_meta_status'); delete_post_meta($postid,'_wp_trash_meta_time'); wp_delete_object_term_relationships($postid, get_object_taxonomies($post->post_type)); $parent_data = array( 'post_parent' => $post->post_parent ); $parent_where = array( 'post_parent' => $postid ); if ( is_post_type_hierarchical( $post->post_type ) ) { // Point children of this page to its parent, also clean the cache of affected children. $children_query = $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE post_parent = %d AND post_type = %s", $postid, $post->post_type ); $children = $wpdb->get_results( $children_query ); $wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => $post->post_type ) ); } // Do raw query. wp_get_post_revisions() is filtered. $revision_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_parent = %d AND post_type = 'revision'", $postid ) ); // Use wp_delete_post (via wp_delete_post_revision) again. Ensures any meta/misplaced data gets cleaned up. foreach ( $revision_ids as $revision_id ) wp_delete_post_revision( $revision_id ); // Point all attachments to this post up one level. $wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => 'attachment' ) ); wp_defer_comment_counting( true ); $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d", $postid )); foreach ( $comment_ids as $comment_id ) { wp_delete_comment( $comment_id, true ); } wp_defer_comment_counting( false ); $post_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d ", $postid )); foreach ( $post_meta_ids as $mid ) delete_metadata_by_mid( 'post', $mid ); /** * Fires immediately before a post is deleted from the database. * * @since 1.2.0 * * @param int $postid Post ID. */ do_action( 'delete_post', $postid ); $result = $wpdb->delete( $wpdb->posts, array( 'ID' => $postid ) ); if ( ! $result ) { return false; } /** * Fires immediately after a post is deleted from the database. * * @since 2.2.0 * * @param int $postid Post ID. */ do_action( 'deleted_post', $postid ); clean_post_cache( $post ); if ( is_post_type_hierarchical( $post->post_type ) && $children ) { foreach ( $children as $child ) clean_post_cache( $child ); } wp_clear_scheduled_hook('publish_future_post', array( $postid ) ); /** * Fires after a post is deleted, at the conclusion of wp_delete_post(). * * @since 3.2.0 * * @see wp_delete_post() * * @param int $postid Post ID. */ do_action( 'after_delete_post', $postid ); return $post; } /** * Reset the page_on_front, show_on_front, and page_for_post settings when * a linked page is deleted or trashed. * * Also ensures the post is no longer sticky. * * @since 3.7.0 * @access private * * @param int $post_id Post ID. */ function _reset_front_page_settings_for_post( $post_id ) { $post = get_post( $post_id ); if ( 'page' == $post->post_type ) { /* * If the page is defined in option page_on_front or post_for_posts, * adjust the corresponding options. */ if ( get_option( 'page_on_front' ) == $post->ID ) { update_option( 'show_on_front', 'posts' ); update_option( 'page_on_front', 0 ); } if ( get_option( 'page_for_posts' ) == $post->ID ) { delete_option( 'page_for_posts', 0 ); } } unstick_post( $post->ID ); } /** * Move a post or page to the Trash * * If trash is disabled, the post or page is permanently deleted. * * @since 2.9.0 * * @see wp_delete_post() * * @param int $post_id Optional. Post ID. Default is ID of the global $post * if EMPTY_TRASH_DAYS equals true. * @return false|array|WP_Post|null Post data array, otherwise false. */ function wp_trash_post( $post_id = 0 ) { if ( !EMPTY_TRASH_DAYS ) return wp_delete_post($post_id, true); if ( !$post = get_post($post_id, ARRAY_A) ) return $post; if ( $post['post_status'] == 'trash' ) return false; /** * Fires before a post is sent to the trash. * * @since 3.3.0 * * @param int $post_id Post ID. */ do_action( 'wp_trash_post', $post_id ); add_post_meta($post_id,'_wp_trash_meta_status', $post['post_status']); add_post_meta($post_id,'_wp_trash_meta_time', time()); $post['post_status'] = 'trash'; wp_insert_post( wp_slash( $post ) ); wp_trash_post_comments($post_id); /** * Fires after a post is sent to the trash. * * @since 2.9.0 * * @param int $post_id Post ID. */ do_action( 'trashed_post', $post_id ); return $post; } /** * Restore a post or page from the Trash. * * @since 2.9.0 * * @param int $post_id Optional. Post ID. Default is ID of the global $post. * @return WP_Post|false WP_Post object. False on failure. */ function wp_untrash_post( $post_id = 0 ) { if ( !$post = get_post($post_id, ARRAY_A) ) return $post; if ( $post['post_status'] != 'trash' ) return false; /** * Fires before a post is restored from the trash. * * @since 2.9.0 * * @param int $post_id Post ID. */ do_action( 'untrash_post', $post_id ); $post_status = get_post_meta($post_id, '_wp_trash_meta_status', true); $post['post_status'] = $post_status; delete_post_meta($post_id, '_wp_trash_meta_status'); delete_post_meta($post_id, '_wp_trash_meta_time'); wp_insert_post( wp_slash( $post ) ); wp_untrash_post_comments($post_id); /** * Fires after a post is restored from the trash. * * @since 2.9.0 * * @param int $post_id Post ID. */ do_action( 'untrashed_post', $post_id ); return $post; } /** * Moves comments for a post to the trash. * * @since 2.9.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|WP_Post|null $post Optional. Post ID or post object. Defaults to global $post. * @return mixed|void False on failure. */ function wp_trash_post_comments( $post = null ) { global $wpdb; $post = get_post($post); if ( empty($post) ) return; $post_id = $post->ID; /** * Fires before comments are sent to the trash. * * @since 2.9.0 * * @param int $post_id Post ID. */ do_action( 'trash_post_comments', $post_id ); $comments = $wpdb->get_results( $wpdb->prepare("SELECT comment_ID, comment_approved FROM $wpdb->comments WHERE comment_post_ID = %d", $post_id) ); if ( empty($comments) ) return; // Cache current status for each comment. $statuses = array(); foreach ( $comments as $comment ) $statuses[$comment->comment_ID] = $comment->comment_approved; add_post_meta($post_id, '_wp_trash_meta_comments_status', $statuses); // Set status for all comments to post-trashed. $result = $wpdb->update($wpdb->comments, array('comment_approved' => 'post-trashed'), array('comment_post_ID' => $post_id)); clean_comment_cache( array_keys($statuses) ); /** * Fires after comments are sent to the trash. * * @since 2.9.0 * * @param int $post_id Post ID. * @param array $statuses Array of comment statuses. */ do_action( 'trashed_post_comments', $post_id, $statuses ); return $result; } /** * Restore comments for a post from the trash. * * @since 2.9.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|WP_Post|null $post Optional. Post ID or post object. Defaults to global $post. * @return true|void */ function wp_untrash_post_comments( $post = null ) { global $wpdb; $post = get_post($post); if ( empty($post) ) return; $post_id = $post->ID; $statuses = get_post_meta($post_id, '_wp_trash_meta_comments_status', true); if ( empty($statuses) ) return true; /** * Fires before comments are restored for a post from the trash. * * @since 2.9.0 * * @param int $post_id Post ID. */ do_action( 'untrash_post_comments', $post_id ); // Restore each comment to its original status. $group_by_status = array(); foreach ( $statuses as $comment_id => $comment_status ) $group_by_status[$comment_status][] = $comment_id; foreach ( $group_by_status as $status => $comments ) { // Sanity check. This shouldn't happen. if ( 'post-trashed' == $status ) { $status = '0'; } $comments_in = implode( ', ', array_map( 'intval', $comments ) ); $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->comments SET comment_approved = %s WHERE comment_ID IN ($comments_in)", $status ) ); } clean_comment_cache( array_keys($statuses) ); delete_post_meta($post_id, '_wp_trash_meta_comments_status'); /** * Fires after comments are restored for a post from the trash. * * @since 2.9.0 * * @param int $post_id Post ID. */ do_action( 'untrashed_post_comments', $post_id ); } /** * Retrieve the list of categories for a post. * * Compatibility layer for themes and plugins. Also an easy layer of abstraction * away from the complexity of the taxonomy layer. * * @since 2.1.0 * * @see wp_get_object_terms() * * @param int $post_id Optional. The Post ID. Does not default to the ID of the * global $post. Default 0. * @param array $args Optional. Category arguments. Default empty. * @return array List of categories. */ function wp_get_post_categories( $post_id = 0, $args = array() ) { $post_id = (int) $post_id; $defaults = array('fields' => 'ids'); $args = wp_parse_args( $args, $defaults ); $cats = wp_get_object_terms($post_id, 'category', $args); return $cats; } /** * Retrieve the tags for a post. * * There is only one default for this function, called 'fields' and by default * is set to 'all'. There are other defaults that can be overridden in * {@link wp_get_object_terms()}. * * @since 2.3.0 * * @param int $post_id Optional. The Post ID. Does not default to the ID of the * global $post. Default 0. * @param array $args Optional. Overwrite the defaults * @return array List of post tags. */ function wp_get_post_tags( $post_id = 0, $args = array() ) { return wp_get_post_terms( $post_id, 'post_tag', $args); } /** * Retrieve the terms for a post. * * There is only one default for this function, called 'fields' and by default * is set to 'all'. There are other defaults that can be overridden in * {@link wp_get_object_terms()}. * * @since 2.8.0 * * @param int $post_id Optional. The Post ID. Does not default to the ID of the * global $post. Default 0. * @param string $taxonomy Optional. The taxonomy for which to retrieve terms. Default 'post_tag'. * @param array $args Optional. {@link wp_get_object_terms()} arguments. Default empty array. * @return array|WP_Error List of post terms or empty array if no terms were found. WP_Error object * if `$taxonomy` doesn't exist. */ function wp_get_post_terms( $post_id = 0, $taxonomy = 'post_tag', $args = array() ) { $post_id = (int) $post_id; $defaults = array('fields' => 'all'); $args = wp_parse_args( $args, $defaults ); $tags = wp_get_object_terms($post_id, $taxonomy, $args); return $tags; } /** * Retrieve a number of recent posts. * * @since 1.0.0 * * @see get_posts() * * @param array $args Optional. Arguments to retrieve posts. Default empty array. * @param string $output Optional. Type of output. Accepts ARRAY_A or ''. Default ARRAY_A. * @return array|false Associative array if $output equals ARRAY_A, array or false if no results. */ function wp_get_recent_posts( $args = array(), $output = ARRAY_A ) { if ( is_numeric( $args ) ) { _deprecated_argument( __FUNCTION__, '3.1', __( 'Passing an integer number of posts is deprecated. Pass an array of arguments instead.' ) ); $args = array( 'numberposts' => absint( $args ) ); } // Set default arguments. $defaults = array( 'numberposts' => 10, 'offset' => 0, 'category' => 0, 'orderby' => 'post_date', 'order' => 'DESC', 'include' => '', 'exclude' => '', 'meta_key' => '', 'meta_value' =>'', 'post_type' => 'post', 'post_status' => 'draft, publish, future, pending, private', 'suppress_filters' => true ); $r = wp_parse_args( $args, $defaults ); $results = get_posts( $r ); // Backward compatibility. Prior to 3.1 expected posts to be returned in array. if ( ARRAY_A == $output ){ foreach ( $results as $key => $result ) { $results[$key] = get_object_vars( $result ); } return $results ? $results : array(); } return $results ? $results : false; } /** * Insert or update a post. * * If the $postarr parameter has 'ID' set to a value, then post will be updated. * * You can set the post date manually, by setting the values for 'post_date' * and 'post_date_gmt' keys. You can close the comments or open the comments by * setting the value for 'comment_status' key. * * @since 1.0.0 * @since 4.2.0 Support was added for encoding emoji in the post title, content, and excerpt. * @since 4.4.0 A 'meta_input' array can now be passed to `$postarr` to add post meta data. * * @see sanitize_post() * @global wpdb $wpdb WordPress database abstraction object. * * @param array $postarr { * An array of elements that make up a post to update or insert. * * @type int $ID The post ID. If equal to something other than 0, * the post with that ID will be updated. Default 0. * @type int $post_author The ID of the user who added the post. Default is * the current user ID. * @type string $post_date The date of the post. Default is the current time. * @type string $post_date_gmt The date of the post in the GMT timezone. Default is * the value of `$post_date`. * @type mixed $post_content The post content. Default empty. * @type string $post_content_filtered The filtered post content. Default empty. * @type string $post_title The post title. Default empty. * @type string $post_excerpt The post excerpt. Default empty. * @type string $post_status The post status. Default 'draft'. * @type string $post_type The post type. Default 'post'. * @type string $comment_status Whether the post can accept comments. Accepts 'open' or 'closed'. * Default is the value of 'default_comment_status' option. * @type string $ping_status Whether the post can accept pings. Accepts 'open' or 'closed'. * Default is the value of 'default_ping_status' option. * @type string $post_password The password to access the post. Default empty. * @type string $post_name The post name. Default is the sanitized post title. * @type string $to_ping Space or carriage return-separated list of URLs to ping. * Default empty. * @type string $pinged Space or carriage return-separated list of URLs that have * been pinged. Default empty. * @type string $post_modified The date when the post was last modified. Default is * the current time. * @type string $post_modified_gmt The date when the post was last modified in the GMT * timezone. Default is the current time. * @type int $post_parent Set this for the post it belongs to, if any. Default 0. * @type int $menu_order The order the post should be displayed in. Default 0. * @type string $post_mime_type The mime type of the post. Default empty. * @type string $guid Global Unique ID for referencing the post. Default empty. * @type array $tax_input Array of taxonomy terms keyed by their taxonomy name. Default empty. * @type array $meta_input Array of post meta values keyed by their post meta key. Default empty. * } * @param bool $wp_error Optional. Whether to allow return of WP_Error on failure. Default false. * @return int|WP_Error The post ID on success. The value 0 or WP_Error on failure. */ function wp_insert_post( $postarr, $wp_error = false ) { global $wpdb; $user_id = get_current_user_id(); $defaults = array( 'post_author' => $user_id, 'post_content' => '', 'post_content_filtered' => '', 'post_title' => '', 'post_excerpt' => '', 'post_status' => 'draft', 'post_type' => 'post', 'comment_status' => '', 'ping_status' => '', 'post_password' => '', 'to_ping' => '', 'pinged' => '', 'post_parent' => 0, 'menu_order' => 0, 'guid' => '', 'import_id' => 0, 'context' => '', ); $postarr = wp_parse_args($postarr, $defaults); unset( $postarr[ 'filter' ] ); $postarr = sanitize_post($postarr, 'db'); // Are we updating or creating? $post_ID = 0; $update = false; $guid = $postarr['guid']; if ( ! empty( $postarr['ID'] ) ) { $update = true; // Get the post ID and GUID. $post_ID = $postarr['ID']; $post_before = get_post( $post_ID ); if ( is_null( $post_before ) ) { if ( $wp_error ) { return new WP_Error( 'invalid_post', __( 'Invalid post ID.' ) ); } return 0; } $guid = get_post_field( 'guid', $post_ID ); $previous_status = get_post_field('post_status', $post_ID ); } else { $previous_status = 'new'; } $post_type = empty( $postarr['post_type'] ) ? 'post' : $postarr['post_type']; $post_title = $postarr['post_title']; $post_content = $postarr['post_content']; $post_excerpt = $postarr['post_excerpt']; if ( isset( $postarr['post_name'] ) ) { $post_name = $postarr['post_name']; } $maybe_empty = 'attachment' !== $post_type && ! $post_content && ! $post_title && ! $post_excerpt && post_type_supports( $post_type, 'editor' ) && post_type_supports( $post_type, 'title' ) && post_type_supports( $post_type, 'excerpt' ); /** * Filter whether the post should be considered "empty". * * The post is considered "empty" if both: * 1. The post type supports the title, editor, and excerpt fields * 2. The title, editor, and excerpt fields are all empty * * Returning a truthy value to the filter will effectively short-circuit * the new post being inserted, returning 0. If $wp_error is true, a WP_Error * will be returned instead. * * @since 3.3.0 * * @param bool $maybe_empty Whether the post should be considered "empty". * @param array $postarr Array of post data. */ if ( apply_filters( 'wp_insert_post_empty_content', $maybe_empty, $postarr ) ) { if ( $wp_error ) { return new WP_Error( 'empty_content', __( 'Content, title, and excerpt are empty.' ) ); } else { return 0; } } $post_status = empty( $postarr['post_status'] ) ? 'draft' : $postarr['post_status']; if ( 'attachment' === $post_type && ! in_array( $post_status, array( 'inherit', 'private', 'trash' ) ) ) { $post_status = 'inherit'; } if ( ! empty( $postarr['post_category'] ) ) { // Filter out empty terms. $post_category = array_filter( $postarr['post_category'] ); } // Make sure we set a valid category. if ( empty( $post_category ) || 0 == count( $post_category ) || ! is_array( $post_category ) ) { // 'post' requires at least one category. if ( 'post' == $post_type && 'auto-draft' != $post_status ) { $post_category = array( get_option('default_category') ); } else { $post_category = array(); } } // Don't allow contributors to set the post slug for pending review posts. if ( 'pending' == $post_status && !current_user_can( 'publish_posts' ) ) { $post_name = ''; } /* * Create a valid post name. Drafts and pending posts are allowed to have * an empty post name. */ if ( empty($post_name) ) { if ( !in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) ) { $post_name = sanitize_title($post_title); } else { $post_name = ''; } } else { // On updates, we need to check to see if it's using the old, fixed sanitization context. $check_name = sanitize_title( $post_name, '', 'old-save' ); if ( $update && strtolower( urlencode( $post_name ) ) == $check_name && get_post_field( 'post_name', $post_ID ) == $check_name ) { $post_name = $check_name; } else { // new post, or slug has changed. $post_name = sanitize_title($post_name); } } /* * If the post date is empty (due to having been new or a draft) and status * is not 'draft' or 'pending', set date to now. */ if ( empty( $postarr['post_date'] ) || '0000-00-00 00:00:00' == $postarr['post_date'] ) { if ( empty( $postarr['post_date_gmt'] ) || '0000-00-00 00:00:00' == $postarr['post_date_gmt'] ) { $post_date = current_time( 'mysql' ); } else { $post_date = get_date_from_gmt( $postarr['post_date_gmt'] ); } } else { $post_date = $postarr['post_date']; } // Validate the date. $mm = substr( $post_date, 5, 2 ); $jj = substr( $post_date, 8, 2 ); $aa = substr( $post_date, 0, 4 ); $valid_date = wp_checkdate( $mm, $jj, $aa, $post_date ); if ( ! $valid_date ) { if ( $wp_error ) { return new WP_Error( 'invalid_date', __( 'Whoops, the provided date is invalid.' ) ); } else { return 0; } } if ( empty( $postarr['post_date_gmt'] ) || '0000-00-00 00:00:00' == $postarr['post_date_gmt'] ) { if ( ! in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) ) { $post_date_gmt = get_gmt_from_date( $post_date ); } else { $post_date_gmt = '0000-00-00 00:00:00'; } } else { $post_date_gmt = $postarr['post_date_gmt']; } if ( $update || '0000-00-00 00:00:00' == $post_date ) { $post_modified = current_time( 'mysql' ); $post_modified_gmt = current_time( 'mysql', 1 ); } else { $post_modified = $post_date; $post_modified_gmt = $post_date_gmt; } if ( 'attachment' !== $post_type ) { if ( 'publish' == $post_status ) { $now = gmdate('Y-m-d H:i:59'); if ( mysql2date('U', $post_date_gmt, false) > mysql2date('U', $now, false) ) { $post_status = 'future'; } } elseif ( 'future' == $post_status ) { $now = gmdate('Y-m-d H:i:59'); if ( mysql2date('U', $post_date_gmt, false) <= mysql2date('U', $now, false) ) { $post_status = 'publish'; } } } // Comment status. if ( empty( $postarr['comment_status'] ) ) { if ( $update ) { $comment_status = 'closed'; } else { $comment_status = get_default_comment_status( $post_type ); } } else { $comment_status = $postarr['comment_status']; } // These variables are needed by compact() later. $post_content_filtered = $postarr['post_content_filtered']; $post_author = isset( $postarr['post_author'] ) ? $postarr['post_author'] : $user_id; $ping_status = empty( $postarr['ping_status'] ) ? get_default_comment_status( $post_type, 'pingback' ) : $postarr['ping_status']; $to_ping = isset( $postarr['to_ping'] ) ? sanitize_trackback_urls( $postarr['to_ping'] ) : ''; $pinged = isset( $postarr['pinged'] ) ? $postarr['pinged'] : ''; $import_id = isset( $postarr['import_id'] ) ? $postarr['import_id'] : 0; /* * The 'wp_insert_post_parent' filter expects all variables to be present. * Previously, these variables would have already been extracted */ if ( isset( $postarr['menu_order'] ) ) { $menu_order = (int) $postarr['menu_order']; } else { $menu_order = 0; } $post_password = isset( $postarr['post_password'] ) ? $postarr['post_password'] : ''; if ( 'private' == $post_status ) { $post_password = ''; } if ( isset( $postarr['post_parent'] ) ) { $post_parent = (int) $postarr['post_parent']; } else { $post_parent = 0; } /** * Filter the post parent -- used to check for and prevent hierarchy loops. * * @since 3.1.0 * * @param int $post_parent Post parent ID. * @param int $post_ID Post ID. * @param array $new_postarr Array of parsed post data. * @param array $postarr Array of sanitized, but otherwise unmodified post data. */ $post_parent = apply_filters( 'wp_insert_post_parent', $post_parent, $post_ID, compact( array_keys( $postarr ) ), $postarr ); $post_name = wp_unique_post_slug( $post_name, $post_ID, $post_status, $post_type, $post_parent ); // Don't unslash. $post_mime_type = isset( $postarr['post_mime_type'] ) ? $postarr['post_mime_type'] : ''; // Expected_slashed (everything!). $data = compact( 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_content_filtered', 'post_title', 'post_excerpt', 'post_status', 'post_type', 'comment_status', 'ping_status', 'post_password', 'post_name', 'to_ping', 'pinged', 'post_modified', 'post_modified_gmt', 'post_parent', 'menu_order', 'post_mime_type', 'guid' ); $emoji_fields = array( 'post_title', 'post_content', 'post_excerpt' ); foreach ( $emoji_fields as $emoji_field ) { if ( isset( $data[ $emoji_field ] ) ) { $charset = $wpdb->get_col_charset( $wpdb->posts, $emoji_field ); if ( 'utf8' === $charset ) { $data[ $emoji_field ] = wp_encode_emoji( $data[ $emoji_field ] ); } } } if ( 'attachment' === $post_type ) { /** * Filter attachment post data before it is updated in or added to the database. * * @since 3.9.0 * * @param array $data An array of sanitized attachment post data. * @param array $postarr An array of unsanitized attachment post data. */ $data = apply_filters( 'wp_insert_attachment_data', $data, $postarr ); } else { /** * Filter slashed post data just before it is inserted into the database. * * @since 2.7.0 * * @param array $data An array of slashed post data. * @param array $postarr An array of sanitized, but otherwise unmodified post data. */ $data = apply_filters( 'wp_insert_post_data', $data, $postarr ); } $data = wp_unslash( $data ); $where = array( 'ID' => $post_ID ); if ( $update ) { /** * Fires immediately before an existing post is updated in the database. * * @since 2.5.0 * * @param int $post_ID Post ID. * @param array $data Array of unslashed post data. */ do_action( 'pre_post_update', $post_ID, $data ); if ( false === $wpdb->update( $wpdb->posts, $data, $where ) ) { if ( $wp_error ) { return new WP_Error('db_update_error', __('Could not update post in the database'), $wpdb->last_error); } else { return 0; } } } else { // If there is a suggested ID, use it if not already present. if ( ! empty( $import_id ) ) { $import_id = (int) $import_id; if ( ! $wpdb->get_var( $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE ID = %d", $import_id) ) ) { $data['ID'] = $import_id; } } if ( false === $wpdb->insert( $wpdb->posts, $data ) ) { if ( $wp_error ) { return new WP_Error('db_insert_error', __('Could not insert post into the database'), $wpdb->last_error); } else { return 0; } } $post_ID = (int) $wpdb->insert_id; // Use the newly generated $post_ID. $where = array( 'ID' => $post_ID ); } if ( empty( $data['post_name'] ) && ! in_array( $data['post_status'], array( 'draft', 'pending', 'auto-draft' ) ) ) { $data['post_name'] = wp_unique_post_slug( sanitize_title( $data['post_title'], $post_ID ), $post_ID, $data['post_status'], $post_type, $post_parent ); $wpdb->update( $wpdb->posts, array( 'post_name' => $data['post_name'] ), $where ); clean_post_cache( $post_ID ); } if ( is_object_in_taxonomy( $post_type, 'category' ) ) { wp_set_post_categories( $post_ID, $post_category ); } if ( isset( $postarr['tags_input'] ) && is_object_in_taxonomy( $post_type, 'post_tag' ) ) { wp_set_post_tags( $post_ID, $postarr['tags_input'] ); } // New-style support for all custom taxonomies. if ( ! empty( $postarr['tax_input'] ) ) { foreach ( $postarr['tax_input'] as $taxonomy => $tags ) { $taxonomy_obj = get_taxonomy($taxonomy); if ( ! $taxonomy_obj ) { /* translators: %s: taxonomy name */ _doing_it_wrong( __FUNCTION__, sprintf( __( 'Invalid taxonomy: %s.' ), $taxonomy ), '4.4.0' ); continue; } // array = hierarchical, string = non-hierarchical. if ( is_array( $tags ) ) { $tags = array_filter($tags); } if ( current_user_can( $taxonomy_obj->cap->assign_terms ) ) { wp_set_post_terms( $post_ID, $tags, $taxonomy ); } } } if ( ! empty( $postarr['meta_input'] ) ) { foreach ( $postarr['meta_input'] as $field => $value ) { update_post_meta( $post_ID, $field, $value ); } } $current_guid = get_post_field( 'guid', $post_ID ); // Set GUID. if ( ! $update && '' == $current_guid ) { $wpdb->update( $wpdb->posts, array( 'guid' => get_permalink( $post_ID ) ), $where ); } if ( 'attachment' === $postarr['post_type'] ) { if ( ! empty( $postarr['file'] ) ) { update_attached_file( $post_ID, $postarr['file'] ); } if ( ! empty( $postarr['context'] ) ) { add_post_meta( $post_ID, '_wp_attachment_context', $postarr['context'], true ); } } clean_post_cache( $post_ID ); $post = get_post( $post_ID ); if ( ! empty( $postarr['page_template'] ) && 'page' == $data['post_type'] ) { $post->page_template = $postarr['page_template']; $page_templates = wp_get_theme()->get_page_templates( $post ); if ( 'default' != $postarr['page_template'] && ! isset( $page_templates[ $postarr['page_template'] ] ) ) { if ( $wp_error ) { return new WP_Error('invalid_page_template', __('The page template is invalid.')); } update_post_meta( $post_ID, '_wp_page_template', 'default' ); } else { update_post_meta( $post_ID, '_wp_page_template', $postarr['page_template'] ); } } if ( 'attachment' !== $postarr['post_type'] ) { wp_transition_post_status( $data['post_status'], $previous_status, $post ); } else { if ( $update ) { /** * Fires once an existing attachment has been updated. * * @since 2.0.0 * * @param int $post_ID Attachment ID. */ do_action( 'edit_attachment', $post_ID ); $post_after = get_post( $post_ID ); /** * Fires once an existing attachment has been updated. * * @since 4.4.0 * * @param int $post_ID Post ID. * @param WP_Post $post_after Post object following the update. * @param WP_Post $post_before Post object before the update. */ do_action( 'attachment_updated', $post_ID, $post_after, $post_before ); } else { /** * Fires once an attachment has been added. * * @since 2.0.0 * * @param int $post_ID Attachment ID. */ do_action( 'add_attachment', $post_ID ); } return $post_ID; } if ( $update ) { /** * Fires once an existing post has been updated. * * @since 1.2.0 * * @param int $post_ID Post ID. * @param WP_Post $post Post object. */ do_action( 'edit_post', $post_ID, $post ); $post_after = get_post($post_ID); /** * Fires once an existing post has been updated. * * @since 3.0.0 * * @param int $post_ID Post ID. * @param WP_Post $post_after Post object following the update. * @param WP_Post $post_before Post object before the update. */ do_action( 'post_updated', $post_ID, $post_after, $post_before); } /** * Fires once a post has been saved. * * The dynamic portion of the hook name, `$post->post_type`, refers to * the post type slug. * * @since 3.7.0 * * @param int $post_ID Post ID. * @param WP_Post $post Post object. * @param bool $update Whether this is an existing post being updated or not. */ do_action( "save_post_{$post->post_type}", $post_ID, $post, $update ); /** * Fires once a post has been saved. * * @since 1.5.0 * * @param int $post_ID Post ID. * @param WP_Post $post Post object. * @param bool $update Whether this is an existing post being updated or not. */ do_action( 'save_post', $post_ID, $post, $update ); /** * Fires once a post has been saved. * * @since 2.0.0 * * @param int $post_ID Post ID. * @param WP_Post $post Post object. * @param bool $update Whether this is an existing post being updated or not. */ do_action( 'wp_insert_post', $post_ID, $post, $update ); return $post_ID; } /** * Update a post with new post data. * * The date does not have to be set for drafts. You can set the date and it will * not be overridden. * * @since 1.0.0 * * @param array|object $postarr Optional. Post data. Arrays are expected to be escaped, * objects are not. Default array. * @param bool $wp_error Optional. Allow return of WP_Error on failure. Default false. * @return int|WP_Error The value 0 or WP_Error on failure. The post ID on success. */ function wp_update_post( $postarr = array(), $wp_error = false ) { if ( is_object($postarr) ) { // Non-escaped post was passed. $postarr = get_object_vars($postarr); $postarr = wp_slash($postarr); } // First, get all of the original fields. $post = get_post($postarr['ID'], ARRAY_A); if ( is_null( $post ) ) { if ( $wp_error ) return new WP_Error( 'invalid_post', __( 'Invalid post ID.' ) ); return 0; } // Escape data pulled from DB. $post = wp_slash($post); // Passed post category list overwrites existing category list if not empty. if ( isset($postarr['post_category']) && is_array($postarr['post_category']) && 0 != count($postarr['post_category']) ) $post_cats = $postarr['post_category']; else $post_cats = $post['post_category']; // Drafts shouldn't be assigned a date unless explicitly done so by the user. if ( isset( $post['post_status'] ) && in_array($post['post_status'], array('draft', 'pending', 'auto-draft')) && empty($postarr['edit_date']) && ('0000-00-00 00:00:00' == $post['post_date_gmt']) ) $clear_date = true; else $clear_date = false; // Merge old and new fields with new fields overwriting old ones. $postarr = array_merge($post, $postarr); $postarr['post_category'] = $post_cats; if ( $clear_date ) { $postarr['post_date'] = current_time('mysql'); $postarr['post_date_gmt'] = ''; } if ($postarr['post_type'] == 'attachment') return wp_insert_attachment($postarr); return wp_insert_post( $postarr, $wp_error ); } /** * Publish a post by transitioning the post status. * * @since 2.1.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|WP_Post $post Post ID or post object. */ function wp_publish_post( $post ) { global $wpdb; if ( ! $post = get_post( $post ) ) return; if ( 'publish' == $post->post_status ) return; $wpdb->update( $wpdb->posts, array( 'post_status' => 'publish' ), array( 'ID' => $post->ID ) ); clean_post_cache( $post->ID ); $old_status = $post->post_status; $post->post_status = 'publish'; wp_transition_post_status( 'publish', $old_status, $post ); /** This action is documented in wp-includes/post.php */ do_action( 'edit_post', $post->ID, $post ); /** This action is documented in wp-includes/post.php */ do_action( "save_post_{$post->post_type}", $post->ID, $post, true ); /** This action is documented in wp-includes/post.php */ do_action( 'save_post', $post->ID, $post, true ); /** This action is documented in wp-includes/post.php */ do_action( 'wp_insert_post', $post->ID, $post, true ); } /** * Publish future post and make sure post ID has future post status. * * Invoked by cron 'publish_future_post' event. This safeguard prevents cron * from publishing drafts, etc. * * @since 2.5.0 * * @param int|WP_Post $post_id Post ID or post object. */ function check_and_publish_future_post( $post_id ) { $post = get_post($post_id); if ( empty($post) ) return; if ( 'future' != $post->post_status ) return; $time = strtotime( $post->post_date_gmt . ' GMT' ); // Uh oh, someone jumped the gun! if ( $time > time() ) { wp_clear_scheduled_hook( 'publish_future_post', array( $post_id ) ); // clear anything else in the system wp_schedule_single_event( $time, 'publish_future_post', array( $post_id ) ); return; } // wp_publish_post(_ returns no meaningful value. wp_publish_post( $post_id ); } /** * Computes a unique slug for the post, when given the desired slug and some post details. * * @since 2.8.0 * * @global wpdb $wpdb WordPress database abstraction object. * @global WP_Rewrite $wp_rewrite * * @param string $slug The desired slug (post_name). * @param int $post_ID Post ID. * @param string $post_status No uniqueness checks are made if the post is still draft or pending. * @param string $post_type Post type. * @param int $post_parent Post parent ID. * @return string Unique slug for the post, based on $post_name (with a -1, -2, etc. suffix) */ function wp_unique_post_slug( $slug, $post_ID, $post_status, $post_type, $post_parent ) { if ( in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) || ( 'inherit' == $post_status && 'revision' == $post_type ) ) return $slug; global $wpdb, $wp_rewrite; $original_slug = $slug; $feeds = $wp_rewrite->feeds; if ( ! is_array( $feeds ) ) $feeds = array(); if ( 'attachment' == $post_type ) { // Attachment slugs must be unique across all types. $check_sql = "SELECT post_name FROM $wpdb->posts WHERE post_name = %s AND ID != %d LIMIT 1"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_ID ) ); /** * Filter whether the post slug would make a bad attachment slug. * * @since 3.1.0 * * @param bool $bad_slug Whether the slug would be bad as an attachment slug. * @param string $slug The post slug. */ if ( $post_name_check || in_array( $slug, $feeds ) || apply_filters( 'wp_unique_post_slug_is_bad_attachment_slug', false, $slug ) ) { $suffix = 2; do { $alt_post_name = _truncate_post_slug( $slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_ID ) ); $suffix++; } while ( $post_name_check ); $slug = $alt_post_name; } } elseif ( is_post_type_hierarchical( $post_type ) ) { if ( 'nav_menu_item' == $post_type ) return $slug; /* * Page slugs must be unique within their own trees. Pages are in a separate * namespace than posts so page slugs are allowed to overlap post slugs. */ $check_sql = "SELECT post_name FROM $wpdb->posts WHERE post_name = %s AND post_type IN ( %s, 'attachment' ) AND ID != %d AND post_parent = %d LIMIT 1"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_type, $post_ID, $post_parent ) ); /** * Filter whether the post slug would make a bad hierarchical post slug. * * @since 3.1.0 * * @param bool $bad_slug Whether the post slug would be bad in a hierarchical post context. * @param string $slug The post slug. * @param string $post_type Post type. * @param int $post_parent Post parent ID. */ if ( $post_name_check || in_array( $slug, $feeds ) || preg_match( "@^($wp_rewrite->pagination_base)?\d+$@", $slug ) || apply_filters( 'wp_unique_post_slug_is_bad_hierarchical_slug', false, $slug, $post_type, $post_parent ) ) { $suffix = 2; do { $alt_post_name = _truncate_post_slug( $slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_type, $post_ID, $post_parent ) ); $suffix++; } while ( $post_name_check ); $slug = $alt_post_name; } } else { // Post slugs must be unique across all posts. $check_sql = "SELECT post_name FROM $wpdb->posts WHERE post_name = %s AND post_type = %s AND ID != %d LIMIT 1"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_type, $post_ID ) ); // Prevent new post slugs that could result in URLs that conflict with date archives. $post = get_post( $post_ID ); $conflicts_with_date_archive = false; if ( 'post' === $post_type && ( ! $post || $post->post_name !== $slug ) && preg_match( '/^[0-9]+$/', $slug ) && $slug_num = intval( $slug ) ) { $permastructs = array_values( array_filter( explode( '/', get_option( 'permalink_structure' ) ) ) ); $postname_index = array_search( '%postname%', $permastructs ); /* * Potential date clashes are as follows: * * - Any integer in the first permastruct position could be a year. * - An integer between 1 and 12 that follows 'year' conflicts with 'monthnum'. * - An integer between 1 and 31 that follows 'monthnum' conflicts with 'day'. */ if ( 0 === $postname_index || ( $postname_index && '%year%' === $permastructs[ $postname_index - 1 ] && 13 > $slug_num ) || ( $postname_index && '%monthnum%' === $permastructs[ $postname_index - 1 ] && 32 > $slug_num ) ) { $conflicts_with_date_archive = true; } } /** * Filter whether the post slug would be bad as a flat slug. * * @since 3.1.0 * * @param bool $bad_slug Whether the post slug would be bad as a flat slug. * @param string $slug The post slug. * @param string $post_type Post type. */ if ( $post_name_check || in_array( $slug, $feeds ) || $conflicts_with_date_archive || apply_filters( 'wp_unique_post_slug_is_bad_flat_slug', false, $slug, $post_type ) ) { $suffix = 2; do { $alt_post_name = _truncate_post_slug( $slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_type, $post_ID ) ); $suffix++; } while ( $post_name_check ); $slug = $alt_post_name; } } /** * Filter the unique post slug. * * @since 3.3.0 * * @param string $slug The post slug. * @param int $post_ID Post ID. * @param string $post_status The post status. * @param string $post_type Post type. * @param int $post_parent Post parent ID * @param string $original_slug The original post slug. */ return apply_filters( 'wp_unique_post_slug', $slug, $post_ID, $post_status, $post_type, $post_parent, $original_slug ); } /** * Truncate a post slug. * * @since 3.6.0 * @access private * * @see utf8_uri_encode() * * @param string $slug The slug to truncate. * @param int $length Optional. Max length of the slug. Default 200 (characters). * @return string The truncated slug. */ function _truncate_post_slug( $slug, $length = 200 ) { if ( strlen( $slug ) > $length ) { $decoded_slug = urldecode( $slug ); if ( $decoded_slug === $slug ) $slug = substr( $slug, 0, $length ); else $slug = utf8_uri_encode( $decoded_slug, $length ); } return rtrim( $slug, '-' ); } /** * Add tags to a post. * * @see wp_set_post_tags() * * @since 2.3.0 * * @param int $post_id Optional. The Post ID. Does not default to the ID of the global $post. * @param string|array $tags Optional. An array of tags to set for the post, or a string of tags * separated by commas. Default empty. * @return array|false|WP_Error Array of affected term IDs. WP_Error or false on failure. */ function wp_add_post_tags( $post_id = 0, $tags = '' ) { return wp_set_post_tags($post_id, $tags, true); } /** * Set the tags for a post. * * @since 2.3.0 * * @see wp_set_object_terms() * * @param int $post_id Optional. The Post ID. Does not default to the ID of the global $post. * @param string|array $tags Optional. An array of tags to set for the post, or a string of tags * separated by commas. Default empty. * @param bool $append Optional. If true, don't delete existing tags, just add on. If false, * replace the tags with the new tags. Default false. * @return array|false|WP_Error Array of affected term IDs. WP_Error or false on failure. */ function wp_set_post_tags( $post_id = 0, $tags = '', $append = false ) { return wp_set_post_terms( $post_id, $tags, 'post_tag', $append); } /** * Set the terms for a post. * * @since 2.8.0 * * @see wp_set_object_terms() * * @param int $post_id Optional. The Post ID. Does not default to the ID of the global $post. * @param string|array $tags Optional. An array of terms to set for the post, or a string of terms * separated by commas. Default empty. * @param string $taxonomy Optional. Taxonomy name. Default 'post_tag'. * @param bool $append Optional. If true, don't delete existing terms, just add on. If false, * replace the terms with the new terms. Default false. * @return array|false|WP_Error Array of affected term IDs. WP_Error or false on failure. */ function wp_set_post_terms( $post_id = 0, $tags = '', $taxonomy = 'post_tag', $append = false ) { $post_id = (int) $post_id; if ( !$post_id ) return false; if ( empty($tags) ) $tags = array(); if ( ! is_array( $tags ) ) { $comma = _x( ',', 'tag delimiter' ); if ( ',' !== $comma ) $tags = str_replace( $comma, ',', $tags ); $tags = explode( ',', trim( $tags, " \n\t\r\0\x0B," ) ); } /* * Hierarchical taxonomies must always pass IDs rather than names so that * children with the same names but different parents aren't confused. */ if ( is_taxonomy_hierarchical( $taxonomy ) ) { $tags = array_unique( array_map( 'intval', $tags ) ); } return wp_set_object_terms( $post_id, $tags, $taxonomy, $append ); } /** * Set categories for a post. * * If the post categories parameter is not set, then the default category is * going used. * * @since 2.1.0 * * @param int $post_ID Optional. The Post ID. Does not default to the ID * of the global $post. Default 0. * @param array|int $post_categories Optional. List of categories or ID of category. * Default empty array. * @param bool $append If true, don't delete existing categories, just add on. * If false, replace the categories with the new categories. * @return array|bool|WP_Error */ function wp_set_post_categories( $post_ID = 0, $post_categories = array(), $append = false ) { $post_ID = (int) $post_ID; $post_type = get_post_type( $post_ID ); $post_status = get_post_status( $post_ID ); // If $post_categories isn't already an array, make it one: $post_categories = (array) $post_categories; if ( empty( $post_categories ) ) { if ( 'post' == $post_type && 'auto-draft' != $post_status ) { $post_categories = array( get_option('default_category') ); $append = false; } else { $post_categories = array(); } } elseif ( 1 == count( $post_categories ) && '' == reset( $post_categories ) ) { return true; } return wp_set_post_terms( $post_ID, $post_categories, 'category', $append ); } /** * Fires actions related to the transitioning of a post's status. * * When a post is saved, the post status is "transitioned" from one status to another, * though this does not always mean the status has actually changed before and after * the save. This function fires a number of action hooks related to that transition: * the generic 'transition_post_status' action, as well as the dynamic hooks * `"{$old_status}_to_{$new_status}"` and `"{$new_status}_{$post->post_type}"`. Note * that the function does not transition the post object in the database. * * For instance: When publishing a post for the first time, the post status may transition * from 'draft' – or some other status – to 'publish'. However, if a post is already * published and is simply being updated, the "old" and "new" statuses may both be 'publish' * before and after the transition. * * @since 2.3.0 * * @param string $new_status Transition to this post status. * @param string $old_status Previous post status. * @param WP_Post $post Post data. */ function wp_transition_post_status( $new_status, $old_status, $post ) { /** * Fires when a post is transitioned from one status to another. * * @since 2.3.0 * * @param string $new_status New post status. * @param string $old_status Old post status. * @param WP_Post $post Post object. */ do_action( 'transition_post_status', $new_status, $old_status, $post ); /** * Fires when a post is transitioned from one status to another. * * The dynamic portions of the hook name, `$new_status` and `$old status`, * refer to the old and new post statuses, respectively. * * @since 2.3.0 * * @param WP_Post $post Post object. */ do_action( "{$old_status}_to_{$new_status}", $post ); /** * Fires when a post is transitioned from one status to another. * * The dynamic portions of the hook name, `$new_status` and `$post->post_type`, * refer to the new post status and post type, respectively. * * Please note: When this action is hooked using a particular post status (like * 'publish', as `publish_{$post->post_type}`), it will fire both when a post is * first transitioned to that status from something else, as well as upon * subsequent post updates (old and new status are both the same). * * Therefore, if you are looking to only fire a callback when a post is first * transitioned to a status, use the {@see 'transition_post_status'} hook instead. * * @since 2.3.0 * * @param int $post_id Post ID. * @param WP_Post $post Post object. */ do_action( "{$new_status}_{$post->post_type}", $post->ID, $post ); } // // Comment, trackback, and pingback functions. // /** * Add a URL to those already pinged. * * @since 1.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $post_id Post ID. * @param string $uri Ping URI. * @return int|false How many rows were updated. */ function add_ping( $post_id, $uri ) { global $wpdb; $pung = $wpdb->get_var( $wpdb->prepare( "SELECT pinged FROM $wpdb->posts WHERE ID = %d", $post_id )); $pung = trim($pung); $pung = preg_split('/\s/', $pung); $pung[] = $uri; $new = implode("\n", $pung); /** * Filter the new ping URL to add for the given post. * * @since 2.0.0 * * @param string $new New ping URL to add. */ $new = apply_filters( 'add_ping', $new ); // expected_slashed ($new). $new = wp_unslash($new); return $wpdb->update( $wpdb->posts, array( 'pinged' => $new ), array( 'ID' => $post_id ) ); } /** * Retrieve enclosures already enclosed for a post. * * @since 1.5.0 * * @param int $post_id Post ID. * @return array List of enclosures. */ function get_enclosed( $post_id ) { $custom_fields = get_post_custom( $post_id ); $pung = array(); if ( !is_array( $custom_fields ) ) return $pung; foreach ( $custom_fields as $key => $val ) { if ( 'enclosure' != $key || !is_array( $val ) ) continue; foreach ( $val as $enc ) { $enclosure = explode( "\n", $enc ); $pung[] = trim( $enclosure[ 0 ] ); } } /** * Filter the list of enclosures already enclosed for the given post. * * @since 2.0.0 * * @param array $pung Array of enclosures for the given post. * @param int $post_id Post ID. */ return apply_filters( 'get_enclosed', $pung, $post_id ); } /** * Retrieve URLs already pinged for a post. * * @since 1.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $post_id Post ID. * @return array */ function get_pung( $post_id ) { global $wpdb; $pung = $wpdb->get_var( $wpdb->prepare( "SELECT pinged FROM $wpdb->posts WHERE ID = %d", $post_id )); $pung = trim($pung); $pung = preg_split('/\s/', $pung); /** * Filter the list of already-pinged URLs for the given post. * * @since 2.0.0 * * @param array $pung Array of URLs already pinged for the given post. */ return apply_filters( 'get_pung', $pung ); } /** * Retrieve URLs that need to be pinged. * * @since 1.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $post_id Post ID * @return array */ function get_to_ping( $post_id ) { global $wpdb; $to_ping = $wpdb->get_var( $wpdb->prepare( "SELECT to_ping FROM $wpdb->posts WHERE ID = %d", $post_id )); $to_ping = sanitize_trackback_urls( $to_ping ); $to_ping = preg_split('/\s/', $to_ping, -1, PREG_SPLIT_NO_EMPTY); /** * Filter the list of URLs yet to ping for the given post. * * @since 2.0.0 * * @param array $to_ping List of URLs yet to ping. */ return apply_filters( 'get_to_ping', $to_ping ); } /** * Do trackbacks for a list of URLs. * * @since 1.0.0 * * @param string $tb_list Comma separated list of URLs. * @param int $post_id Post ID. */ function trackback_url_list( $tb_list, $post_id ) { if ( ! empty( $tb_list ) ) { // Get post data. $postdata = get_post( $post_id, ARRAY_A ); // Form an excerpt. $excerpt = strip_tags( $postdata['post_excerpt'] ? $postdata['post_excerpt'] : $postdata['post_content'] ); if ( strlen( $excerpt ) > 255 ) { $excerpt = substr( $excerpt, 0, 252 ) . '…'; } $trackback_urls = explode( ',', $tb_list ); foreach ( (array) $trackback_urls as $tb_url ) { $tb_url = trim( $tb_url ); trackback( $tb_url, wp_unslash( $postdata['post_title'] ), $excerpt, $post_id ); } } } // // Page functions // /** * Get a list of page IDs. * * @since 2.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @return array List of page IDs. */ function get_all_page_ids() { global $wpdb; $page_ids = wp_cache_get('all_page_ids', 'posts'); if ( ! is_array( $page_ids ) ) { $page_ids = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE post_type = 'page'"); wp_cache_add('all_page_ids', $page_ids, 'posts'); } return $page_ids; } /** * Retrieves page data given a page ID or page object. * * Use get_post() instead of get_page(). * * @since 1.5.1 * @deprecated 3.5.0 Use get_post() * * @param mixed $page Page object or page ID. Passed by reference. * @param string $output Optional. What to output. Accepts OBJECT, ARRAY_A, or ARRAY_N. * Default OBJECT. * @param string $filter Optional. How the return value should be filtered. Accepts 'raw', * 'edit', 'db', 'display'. Default 'raw'. * @return WP_Post|array|null WP_Post on success or null on failure. */ function get_page( $page, $output = OBJECT, $filter = 'raw') { return get_post( $page, $output, $filter ); } /** * Retrieves a page given its path. * * @since 2.1.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $page_path Page path. * @param string $output Optional. Output type. Accepts OBJECT, ARRAY_N, or ARRAY_A. * Default OBJECT. * @param string|array $post_type Optional. Post type or array of post types. Default 'page'. * @return WP_Post|array|void WP_Post on success. */ function get_page_by_path( $page_path, $output = OBJECT, $post_type = 'page' ) { global $wpdb; $page_path = rawurlencode(urldecode($page_path)); $page_path = str_replace('%2F', '/', $page_path); $page_path = str_replace('%20', ' ', $page_path); $parts = explode( '/', trim( $page_path, '/' ) ); $parts = esc_sql( $parts ); $parts = array_map( 'sanitize_title_for_query', $parts ); $in_string = "'" . implode( "','", $parts ) . "'"; if ( is_array( $post_type ) ) { $post_types = $post_type; } else { $post_types = array( $post_type, 'attachment' ); } $post_types = esc_sql( $post_types ); $post_type_in_string = "'" . implode( "','", $post_types ) . "'"; $sql = " SELECT ID, post_name, post_parent, post_type FROM $wpdb->posts WHERE post_name IN ($in_string) AND post_type IN ($post_type_in_string) "; $pages = $wpdb->get_results( $sql, OBJECT_K ); $revparts = array_reverse( $parts ); $foundid = 0; foreach ( (array) $pages as $page ) { if ( $page->post_name == $revparts[0] ) { $count = 0; $p = $page; while ( $p->post_parent != 0 && isset( $pages[ $p->post_parent ] ) ) { $count++; $parent = $pages[ $p->post_parent ]; if ( ! isset( $revparts[ $count ] ) || $parent->post_name != $revparts[ $count ] ) break; $p = $parent; } if ( $p->post_parent == 0 && $count+1 == count( $revparts ) && $p->post_name == $revparts[ $count ] ) { $foundid = $page->ID; if ( $page->post_type == $post_type ) break; } } } if ( $foundid ) { return get_post( $foundid, $output ); } } /** * Retrieve a page given its title. * * @since 2.1.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $page_title Page title * @param string $output Optional. Output type. OBJECT, ARRAY_N, or ARRAY_A. * Default OBJECT. * @param string|array $post_type Optional. Post type or array of post types. Default 'page'. * @return WP_Post|array|void WP_Post on success or null on failure */ function get_page_by_title( $page_title, $output = OBJECT, $post_type = 'page' ) { global $wpdb; if ( is_array( $post_type ) ) { $post_type = esc_sql( $post_type ); $post_type_in_string = "'" . implode( "','", $post_type ) . "'"; $sql = $wpdb->prepare( " SELECT ID FROM $wpdb->posts WHERE post_title = %s AND post_type IN ($post_type_in_string) ", $page_title ); } else { $sql = $wpdb->prepare( " SELECT ID FROM $wpdb->posts WHERE post_title = %s AND post_type = %s ", $page_title, $post_type ); } $page = $wpdb->get_var( $sql ); if ( $page ) { return get_post( $page, $output ); } } /** * Identify descendants of a given page ID in a list of page objects. * * Descendants are identified from the `$pages` array passed to the function. No database queries are performed. * * @since 1.5.1 * * @param int $page_id Page ID. * @param array $pages List of page objects from which descendants should be identified. * @return array List of page children. */ function get_page_children( $page_id, $pages ) { // Build a hash of ID -> children. $children = array(); foreach ( (array) $pages as $page ) { $children[ intval( $page->post_parent ) ][] = $page; } $page_list = array(); // Start the search by looking at immediate children. if ( isset( $children[ $page_id ] ) ) { // Always start at the end of the stack in order to preserve original `$pages` order. $to_look = array_reverse( $children[ $page_id ] ); while ( $to_look ) { $p = array_pop( $to_look ); $page_list[] = $p; if ( isset( $children[ $p->ID ] ) ) { foreach ( array_reverse( $children[ $p->ID ] ) as $child ) { // Append to the `$to_look` stack to descend the tree. $to_look[] = $child; } } } } return $page_list; } /** * Order the pages with children under parents in a flat list. * * It uses auxiliary structure to hold parent-children relationships and * runs in O(N) complexity * * @since 2.0.0 * * @param array $pages Posts array, passed by reference. * @param int $page_id Optional. Parent page ID. Default 0. * @return array A list arranged by hierarchy. Children immediately follow their parents. */ function get_page_hierarchy( &$pages, $page_id = 0 ) { if ( empty( $pages ) ) { return array(); } $children = array(); foreach ( (array) $pages as $p ) { $parent_id = intval( $p->post_parent ); $children[ $parent_id ][] = $p; } $result = array(); _page_traverse_name( $page_id, $children, $result ); return $result; } /** * Traverse and return all the nested children post names of a root page. * * $children contains parent-children relations * * @since 2.9.0 * * @see _page_traverse_name() * * @param int $page_id Page ID. * @param array &$children Parent-children relations, passed by reference. * @param array &$result Result, passed by reference. */ function _page_traverse_name( $page_id, &$children, &$result ){ if ( isset( $children[ $page_id ] ) ){ foreach ( (array)$children[ $page_id ] as $child ) { $result[ $child->ID ] = $child->post_name; _page_traverse_name( $child->ID, $children, $result ); } } } /** * Build URI for a page. * * Sub pages will be in the "directory" under the parent page post name. * * @since 1.5.0 * * @param WP_Post|object|int $page Page object or page ID. * @return string|false Page URI, false on error. */ function get_page_uri( $page ) { $page = get_post( $page ); if ( ! $page ) return false; $uri = $page->post_name; foreach ( $page->ancestors as $parent ) { $parent = get_post( $parent ); if ( 'publish' === $parent->post_status ) { $uri = $parent->post_name . '/' . $uri; } } /** * Filter the URI for a page. * * @since 4.4.0 * * @param string $uri Page URI. * @param WP_Post $page Page object. */ return apply_filters( 'get_page_uri', $uri, $page ); } /** * Retrieve a list of pages. * * @global wpdb $wpdb WordPress database abstraction object. * * @since 1.5.0 * * @param array|string $args { * Optional. Array or string of arguments to retrieve pages. * * @type int $child_of Page ID to return child and grandchild pages of. Note: The value * of `$hierarchical` has no bearing on whether `$child_of` returns * hierarchical results. Default 0, or no restriction. * @type string $sort_order How to sort retrieved pages. Accepts 'ASC', 'DESC'. Default 'ASC'. * @type string $sort_column What columns to sort pages by, comma-separated. Accepts 'post_author', * 'post_date', 'post_title', 'post_name', 'post_modified', 'menu_order', * 'post_modified_gmt', 'post_parent', 'ID', 'rand', 'comment_count'. * 'post_' can be omitted for any values that start with it. * Default 'post_title'. * @type bool $hierarchical Whether to return pages hierarchically. If false in conjunction with * `$child_of` also being false, both arguments will be disregarded. * Default true. * @type array $exclude Array of page IDs to exclude. Default empty array. * @type array $include Array of page IDs to include. Cannot be used with `$child_of`, * `$parent`, `$exclude`, `$meta_key`, `$meta_value`, or `$hierarchical`. * Default empty array. * @type string $meta_key Only include pages with this meta key. Default empty. * @type string $meta_value Only include pages with this meta value. Requires `$meta_key`. * Default empty. * @type string $authors A comma-separated list of author IDs. Default empty. * @type int $parent Page ID to return direct children of. Default -1, or no restriction. * @type string|array $exclude_tree Comma-separated string or array of page IDs to exclude. * Default empty array. * @type int $number The number of pages to return. Default 0, or all pages. * @type int $offset The number of pages to skip before returning. Requires `$number`. * Default 0. * @type string $post_type The post type to query. Default 'page'. * @type string $post_status A comma-separated list of post status types to include. * Default 'publish'. * } * @return array|false List of pages matching defaults or `$args`. */ function get_pages( $args = array() ) { global $wpdb; $defaults = array( 'child_of' => 0, 'sort_order' => 'ASC', 'sort_column' => 'post_title', 'hierarchical' => 1, 'exclude' => array(), 'include' => array(), 'meta_key' => '', 'meta_value' => '', 'authors' => '', 'parent' => -1, 'exclude_tree' => array(), 'number' => '', 'offset' => 0, 'post_type' => 'page', 'post_status' => 'publish', ); $r = wp_parse_args( $args, $defaults ); $number = (int) $r['number']; $offset = (int) $r['offset']; $child_of = (int) $r['child_of']; $hierarchical = $r['hierarchical']; $exclude = $r['exclude']; $meta_key = $r['meta_key']; $meta_value = $r['meta_value']; $parent = $r['parent']; $post_status = $r['post_status']; // Make sure the post type is hierarchical. $hierarchical_post_types = get_post_types( array( 'hierarchical' => true ) ); if ( ! in_array( $r['post_type'], $hierarchical_post_types ) ) { return false; } if ( $parent > 0 && ! $child_of ) { $hierarchical = false; } // Make sure we have a valid post status. if ( ! is_array( $post_status ) ) { $post_status = explode( ',', $post_status ); } if ( array_diff( $post_status, get_post_stati() ) ) { return false; } // $args can be whatever, only use the args defined in defaults to compute the key. $key = md5( serialize( wp_array_slice_assoc( $r, array_keys( $defaults ) ) ) ); $last_changed = wp_cache_get( 'last_changed', 'posts' ); if ( ! $last_changed ) { $last_changed = microtime(); wp_cache_set( 'last_changed', $last_changed, 'posts' ); } $cache_key = "get_pages:$key:$last_changed"; if ( $cache = wp_cache_get( $cache_key, 'posts' ) ) { // Convert to WP_Post instances. $pages = array_map( 'get_post', $cache ); /** This filter is documented in wp-includes/post.php */ $pages = apply_filters( 'get_pages', $pages, $r ); return $pages; } $inclusions = ''; if ( ! empty( $r['include'] ) ) { $child_of = 0; //ignore child_of, parent, exclude, meta_key, and meta_value params if using include $parent = -1; $exclude = ''; $meta_key = ''; $meta_value = ''; $hierarchical = false; $incpages = wp_parse_id_list( $r['include'] ); if ( ! empty( $incpages ) ) { $inclusions = ' AND ID IN (' . implode( ',', $incpages ) . ')'; } } $exclusions = ''; if ( ! empty( $exclude ) ) { $expages = wp_parse_id_list( $exclude ); if ( ! empty( $expages ) ) { $exclusions = ' AND ID NOT IN (' . implode( ',', $expages ) . ')'; } } $author_query = ''; if ( ! empty( $r['authors'] ) ) { $post_authors = preg_split( '/[\s,]+/', $r['authors'] ); if ( ! empty( $post_authors ) ) { foreach ( $post_authors as $post_author ) { //Do we have an author id or an author login? if ( 0 == intval($post_author) ) { $post_author = get_user_by('login', $post_author); if ( empty( $post_author ) ) { continue; } if ( empty( $post_author->ID ) ) { continue; } $post_author = $post_author->ID; } if ( '' == $author_query ) { $author_query = $wpdb->prepare(' post_author = %d ', $post_author); } else { $author_query .= $wpdb->prepare(' OR post_author = %d ', $post_author); } } if ( '' != $author_query ) { $author_query = " AND ($author_query)"; } } } $join = ''; $where = "$exclusions $inclusions "; if ( '' !== $meta_key || '' !== $meta_value ) { $join = " LEFT JOIN $wpdb->postmeta ON ( $wpdb->posts.ID = $wpdb->postmeta.post_id )"; // meta_key and meta_value might be slashed $meta_key = wp_unslash($meta_key); $meta_value = wp_unslash($meta_value); if ( '' !== $meta_key ) { $where .= $wpdb->prepare(" AND $wpdb->postmeta.meta_key = %s", $meta_key); } if ( '' !== $meta_value ) { $where .= $wpdb->prepare(" AND $wpdb->postmeta.meta_value = %s", $meta_value); } } if ( is_array( $parent ) ) { $post_parent__in = implode( ',', array_map( 'absint', (array) $parent ) ); if ( ! empty( $post_parent__in ) ) { $where .= " AND post_parent IN ($post_parent__in)"; } } elseif ( $parent >= 0 ) { $where .= $wpdb->prepare(' AND post_parent = %d ', $parent); } if ( 1 == count( $post_status ) ) { $where_post_type = $wpdb->prepare( "post_type = %s AND post_status = %s", $r['post_type'], reset( $post_status ) ); } else { $post_status = implode( "', '", $post_status ); $where_post_type = $wpdb->prepare( "post_type = %s AND post_status IN ('$post_status')", $r['post_type'] ); } $orderby_array = array(); $allowed_keys = array( 'author', 'post_author', 'date', 'post_date', 'title', 'post_title', 'name', 'post_name', 'modified', 'post_modified', 'modified_gmt', 'post_modified_gmt', 'menu_order', 'parent', 'post_parent', 'ID', 'rand', 'comment_count' ); foreach ( explode( ',', $r['sort_column'] ) as $orderby ) { $orderby = trim( $orderby ); if ( ! in_array( $orderby, $allowed_keys ) ) { continue; } switch ( $orderby ) { case 'menu_order': break; case 'ID': $orderby = "$wpdb->posts.ID"; break; case 'rand': $orderby = 'RAND()'; break; case 'comment_count': $orderby = "$wpdb->posts.comment_count"; break; default: if ( 0 === strpos( $orderby, 'post_' ) ) { $orderby = "$wpdb->posts." . $orderby; } else { $orderby = "$wpdb->posts.post_" . $orderby; } } $orderby_array[] = $orderby; } $sort_column = ! empty( $orderby_array ) ? implode( ',', $orderby_array ) : "$wpdb->posts.post_title"; $sort_order = strtoupper( $r['sort_order'] ); if ( '' !== $sort_order && ! in_array( $sort_order, array( 'ASC', 'DESC' ) ) ) { $sort_order = 'ASC'; } $query = "SELECT * FROM $wpdb->posts $join WHERE ($where_post_type) $where "; $query .= $author_query; $query .= " ORDER BY " . $sort_column . " " . $sort_order ; if ( ! empty( $number ) ) { $query .= ' LIMIT ' . $offset . ',' . $number; } $pages = $wpdb->get_results($query); if ( empty($pages) ) { /** This filter is documented in wp-includes/post.php */ $pages = apply_filters( 'get_pages', array(), $r ); return $pages; } // Sanitize before caching so it'll only get done once. $num_pages = count($pages); for ($i = 0; $i < $num_pages; $i++) { $pages[$i] = sanitize_post($pages[$i], 'raw'); } // Update cache. update_post_cache( $pages ); if ( $child_of || $hierarchical ) { $pages = get_page_children($child_of, $pages); } if ( ! empty( $r['exclude_tree'] ) ) { $exclude = wp_parse_id_list( $r['exclude_tree'] ); foreach ( $exclude as $id ) { $children = get_page_children( $id, $pages ); foreach ( $children as $child ) { $exclude[] = $child->ID; } } $num_pages = count( $pages ); for ( $i = 0; $i < $num_pages; $i++ ) { if ( in_array( $pages[$i]->ID, $exclude ) ) { unset( $pages[$i] ); } } } $page_structure = array(); foreach ( $pages as $page ) { $page_structure[] = $page->ID; } wp_cache_set( $cache_key, $page_structure, 'posts' ); // Convert to WP_Post instances $pages = array_map( 'get_post', $pages ); /** * Filter the retrieved list of pages. * * @since 2.1.0 * * @param array $pages List of pages to retrieve. * @param array $r Array of get_pages() arguments. */ return apply_filters( 'get_pages', $pages, $r ); } // // Attachment functions // /** * Check if the attachment URI is local one and is really an attachment. * * @since 2.0.0 * * @param string $url URL to check * @return bool True on success, false on failure. */ function is_local_attachment($url) { if (strpos($url, home_url()) === false) return false; if (strpos($url, home_url('/?attachment_id=')) !== false) return true; if ( $id = url_to_postid($url) ) { $post = get_post($id); if ( 'attachment' == $post->post_type ) return true; } return false; } /** * Insert an attachment. * * If you set the 'ID' in the $args parameter, it will mean that you are * updating and attempt to update the attachment. You can also set the * attachment name or title by setting the key 'post_name' or 'post_title'. * * You can set the dates for the attachment manually by setting the 'post_date' * and 'post_date_gmt' keys' values. * * By default, the comments will use the default settings for whether the * comments are allowed. You can close them manually or keep them open by * setting the value for the 'comment_status' key. * * @since 2.0.0 * * @see wp_insert_post() * * @param string|array $args Arguments for inserting an attachment. * @param string $file Optional. Filename. * @param int $parent Optional. Parent post ID. * @return int Attachment ID. */ function wp_insert_attachment( $args, $file = false, $parent = 0 ) { $defaults = array( 'file' => $file, 'post_parent' => 0 ); $data = wp_parse_args( $args, $defaults ); if ( ! empty( $parent ) ) { $data['post_parent'] = $parent; } $data['post_type'] = 'attachment'; return wp_insert_post( $data ); } /** * Trash or delete an attachment. * * When an attachment is permanently deleted, the file will also be removed. * Deletion removes all post meta fields, taxonomy, comments, etc. associated * with the attachment (except the main post). * * The attachment is moved to the trash instead of permanently deleted unless trash * for media is disabled, item is already in the trash, or $force_delete is true. * * @since 2.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $post_id Attachment ID. * @param bool $force_delete Optional. Whether to bypass trash and force deletion. * Default false. * @return mixed False on failure. Post data on success. */ function wp_delete_attachment( $post_id, $force_delete = false ) { global $wpdb; if ( !$post = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d", $post_id) ) ) return $post; if ( 'attachment' != $post->post_type ) return false; if ( !$force_delete && EMPTY_TRASH_DAYS && MEDIA_TRASH && 'trash' != $post->post_status ) return wp_trash_post( $post_id ); delete_post_meta($post_id, '_wp_trash_meta_status'); delete_post_meta($post_id, '_wp_trash_meta_time'); $meta = wp_get_attachment_metadata( $post_id ); $backup_sizes = get_post_meta( $post->ID, '_wp_attachment_backup_sizes', true ); $file = get_attached_file( $post_id ); if ( is_multisite() ) delete_transient( 'dirsize_cache' ); /** * Fires before an attachment is deleted, at the start of wp_delete_attachment(). * * @since 2.0.0 * * @param int $post_id Attachment ID. */ do_action( 'delete_attachment', $post_id ); wp_delete_object_term_relationships($post_id, array('category', 'post_tag')); wp_delete_object_term_relationships($post_id, get_object_taxonomies($post->post_type)); // Delete all for any posts. delete_metadata( 'post', null, '_thumbnail_id', $post_id, true ); wp_defer_comment_counting( true ); $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d", $post_id )); foreach ( $comment_ids as $comment_id ) { wp_delete_comment( $comment_id, true ); } wp_defer_comment_counting( false ); $post_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d ", $post_id )); foreach ( $post_meta_ids as $mid ) delete_metadata_by_mid( 'post', $mid ); /** This action is documented in wp-includes/post.php */ do_action( 'delete_post', $post_id ); $result = $wpdb->delete( $wpdb->posts, array( 'ID' => $post_id ) ); if ( ! $result ) { return false; } /** This action is documented in wp-includes/post.php */ do_action( 'deleted_post', $post_id ); $uploadpath = wp_upload_dir(); if ( ! empty($meta['thumb']) ) { // Don't delete the thumb if another attachment uses it. if (! $wpdb->get_row( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s AND post_id <> %d", '%' . $wpdb->esc_like( $meta['thumb'] ) . '%', $post_id)) ) { $thumbfile = str_replace(basename($file), $meta['thumb'], $file); /** This filter is documented in wp-includes/functions.php */ $thumbfile = apply_filters( 'wp_delete_file', $thumbfile ); @ unlink( path_join($uploadpath['basedir'], $thumbfile) ); } } // Remove intermediate and backup images if there are any. if ( isset( $meta['sizes'] ) && is_array( $meta['sizes'] ) ) { foreach ( $meta['sizes'] as $size => $sizeinfo ) { $intermediate_file = str_replace( basename( $file ), $sizeinfo['file'], $file ); /** This filter is documented in wp-includes/functions.php */ $intermediate_file = apply_filters( 'wp_delete_file', $intermediate_file ); @ unlink( path_join( $uploadpath['basedir'], $intermediate_file ) ); } } if ( is_array($backup_sizes) ) { foreach ( $backup_sizes as $size ) { $del_file = path_join( dirname($meta['file']), $size['file'] ); /** This filter is documented in wp-includes/functions.php */ $del_file = apply_filters( 'wp_delete_file', $del_file ); @ unlink( path_join($uploadpath['basedir'], $del_file) ); } } wp_delete_file( $file ); clean_post_cache( $post ); return $post; } /** * Retrieve attachment meta field for attachment ID. * * @since 2.1.0 * * @param int $post_id Attachment ID. Default 0. * @param bool $unfiltered Optional. If true, filters are not run. Default false. * @return mixed Attachment meta field. False on failure. */ function wp_get_attachment_metadata( $post_id = 0, $unfiltered = false ) { $post_id = (int) $post_id; if ( !$post = get_post( $post_id ) ) return false; $data = get_post_meta( $post->ID, '_wp_attachment_metadata', true ); if ( $unfiltered ) return $data; /** * Filter the attachment meta data. * * @since 2.1.0 * * @param array|bool $data Array of meta data for the given attachment, or false * if the object does not exist. * @param int $post_id Attachment ID. */ return apply_filters( 'wp_get_attachment_metadata', $data, $post->ID ); } /** * Update metadata for an attachment. * * @since 2.1.0 * * @param int $post_id Attachment ID. * @param array $data Attachment data. * @return int|bool False if $post is invalid. */ function wp_update_attachment_metadata( $post_id, $data ) { $post_id = (int) $post_id; if ( !$post = get_post( $post_id ) ) return false; /** * Filter the updated attachment meta data. * * @since 2.1.0 * * @param array $data Array of updated attachment meta data. * @param int $post_id Attachment ID. */ if ( $data = apply_filters( 'wp_update_attachment_metadata', $data, $post->ID ) ) return update_post_meta( $post->ID, '_wp_attachment_metadata', $data ); else return delete_post_meta( $post->ID, '_wp_attachment_metadata' ); } /** * Retrieve the URL for an attachment. * * @since 2.1.0 * * @global string $pagenow * * @param int $post_id Optional. Attachment ID. Default 0. * @return string|false Attachment URL, otherwise false. */ function wp_get_attachment_url( $post_id = 0 ) { $post_id = (int) $post_id; if ( !$post = get_post( $post_id ) ) return false; if ( 'attachment' != $post->post_type ) return false; $url = ''; // Get attached file. if ( $file = get_post_meta( $post->ID, '_wp_attached_file', true) ) { // Get upload directory. if ( ($uploads = wp_upload_dir()) && false === $uploads['error'] ) { // Check that the upload base exists in the file location. if ( 0 === strpos( $file, $uploads['basedir'] ) ) { // Replace file location with url location. $url = str_replace($uploads['basedir'], $uploads['baseurl'], $file); } elseif ( false !== strpos($file, 'wp-content/uploads') ) { $url = $uploads['baseurl'] . substr( $file, strpos($file, 'wp-content/uploads') + 18 ); } else { // It's a newly-uploaded file, therefore $file is relative to the basedir. $url = $uploads['baseurl'] . "/$file"; } } } /* * If any of the above options failed, Fallback on the GUID as used pre-2.7, * not recommended to rely upon this. */ if ( empty($url) ) { $url = get_the_guid( $post->ID ); } // On SSL front-end, URLs should be HTTPS. if ( is_ssl() && ! is_admin() && 'wp-login.php' !== $GLOBALS['pagenow'] ) { $url = set_url_scheme( $url ); } /** * Filter the attachment URL. * * @since 2.1.0 * * @param string $url URL for the given attachment. * @param int $post_id Attachment ID. */ $url = apply_filters( 'wp_get_attachment_url', $url, $post->ID ); if ( empty( $url ) ) return false; return $url; } /** * Retrieve thumbnail for an attachment. * * @since 2.1.0 * * @param int $post_id Optional. Attachment ID. Default 0. * @return string|false False on failure. Thumbnail file path on success. */ function wp_get_attachment_thumb_file( $post_id = 0 ) { $post_id = (int) $post_id; if ( !$post = get_post( $post_id ) ) return false; if ( !is_array( $imagedata = wp_get_attachment_metadata( $post->ID ) ) ) return false; $file = get_attached_file( $post->ID ); if ( !empty($imagedata['thumb']) && ($thumbfile = str_replace(basename($file), $imagedata['thumb'], $file)) && file_exists($thumbfile) ) { /** * Filter the attachment thumbnail file path. * * @since 2.1.0 * * @param string $thumbfile File path to the attachment thumbnail. * @param int $post_id Attachment ID. */ return apply_filters( 'wp_get_attachment_thumb_file', $thumbfile, $post->ID ); } return false; } /** * Retrieve URL for an attachment thumbnail. * * @since 2.1.0 * * @param int $post_id Optional. Attachment ID. Default 0. * @return string|false False on failure. Thumbnail URL on success. */ function wp_get_attachment_thumb_url( $post_id = 0 ) { $post_id = (int) $post_id; if ( !$post = get_post( $post_id ) ) return false; if ( !$url = wp_get_attachment_url( $post->ID ) ) return false; $sized = image_downsize( $post_id, 'thumbnail' ); if ( $sized ) return $sized[0]; if ( !$thumb = wp_get_attachment_thumb_file( $post->ID ) ) return false; $url = str_replace(basename($url), basename($thumb), $url); /** * Filter the attachment thumbnail URL. * * @since 2.1.0 * * @param string $url URL for the attachment thumbnail. * @param int $post_id Attachment ID. */ return apply_filters( 'wp_get_attachment_thumb_url', $url, $post->ID ); } /** * Verifies an attachment is of a given type. * * @since 4.2.0 * * @param string $type Attachment type. Accepts 'image', 'audio', or 'video'. * @param int|WP_Post $post_id Optional. Attachment ID. Default 0. * @return bool True if one of the accepted types, false otherwise. */ function wp_attachment_is( $type, $post_id = 0 ) { if ( ! $post = get_post( $post_id ) ) { return false; } if ( ! $file = get_attached_file( $post->ID ) ) { return false; } if ( 0 === strpos( $post->post_mime_type, $type . '/' ) ) { return true; } $check = wp_check_filetype( $file ); if ( empty( $check['ext'] ) ) { return false; } $ext = $check['ext']; if ( 'import' !== $post->post_mime_type ) { return $type === $ext; } switch ( $type ) { case 'image': $image_exts = array( 'jpg', 'jpeg', 'jpe', 'gif', 'png' ); return in_array( $ext, $image_exts ); case 'audio': return in_array( $ext, wp_get_audio_extensions() ); case 'video': return in_array( $ext, wp_get_video_extensions() ); default: return $type === $ext; } } /** * Checks if the attachment is an image. * * @since 2.1.0 * @since 4.2.0 Modified into wrapper for wp_attachment_is() and * allowed WP_Post object to be passed. * * @param int|WP_Post $post Optional. Attachment ID. Default 0. * @return bool Whether the attachment is an image. */ function wp_attachment_is_image( $post = 0 ) { return wp_attachment_is( 'image', $post ); } /** * Retrieve the icon for a MIME type. * * @since 2.1.0 * * @param string|int $mime MIME type or attachment ID. * @return string|false Icon, false otherwise. */ function wp_mime_type_icon( $mime = 0 ) { if ( !is_numeric($mime) ) $icon = wp_cache_get("mime_type_icon_$mime"); $post_id = 0; if ( empty($icon) ) { $post_mimes = array(); if ( is_numeric($mime) ) { $mime = (int) $mime; if ( $post = get_post( $mime ) ) { $post_id = (int) $post->ID; $file = get_attached_file( $post_id ); $ext = preg_replace('/^.+?\.([^.]+)$/', '$1', $file); if ( !empty($ext) ) { $post_mimes[] = $ext; if ( $ext_type = wp_ext2type( $ext ) ) $post_mimes[] = $ext_type; } $mime = $post->post_mime_type; } else { $mime = 0; } } else { $post_mimes[] = $mime; } $icon_files = wp_cache_get('icon_files'); if ( !is_array($icon_files) ) { /** * Filter the icon directory path. * * @since 2.0.0 * * @param string $path Icon directory absolute path. */ $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' ); /** * Filter the icon directory URI. * * @since 2.0.0 * * @param string $uri Icon directory URI. */ $icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url( 'images/media' ) ); /** * Filter the list of icon directory URIs. * * @since 2.5.0 * * @param array $uris List of icon directory URIs. */ $dirs = apply_filters( 'icon_dirs', array( $icon_dir => $icon_dir_uri ) ); $icon_files = array(); while ( $dirs ) { $keys = array_keys( $dirs ); $dir = array_shift( $keys ); $uri = array_shift($dirs); if ( $dh = opendir($dir) ) { while ( false !== $file = readdir($dh) ) { $file = basename($file); if ( substr($file, 0, 1) == '.' ) continue; if ( !in_array(strtolower(substr($file, -4)), array('.png', '.gif', '.jpg') ) ) { if ( is_dir("$dir/$file") ) $dirs["$dir/$file"] = "$uri/$file"; continue; } $icon_files["$dir/$file"] = "$uri/$file"; } closedir($dh); } } wp_cache_add( 'icon_files', $icon_files, 'default', 600 ); } $types = array(); // Icon basename - extension = MIME wildcard. foreach ( $icon_files as $file => $uri ) $types[ preg_replace('/^([^.]*).*$/', '$1', basename($file)) ] =& $icon_files[$file]; if ( ! empty($mime) ) { $post_mimes[] = substr($mime, 0, strpos($mime, '/')); $post_mimes[] = substr($mime, strpos($mime, '/') + 1); $post_mimes[] = str_replace('/', '_', $mime); } $matches = wp_match_mime_types(array_keys($types), $post_mimes); $matches['default'] = array('default'); foreach ( $matches as $match => $wilds ) { foreach ( $wilds as $wild ) { if ( ! isset( $types[ $wild ] ) ) { continue; } $icon = $types[ $wild ]; if ( ! is_numeric( $mime ) ) { wp_cache_add( "mime_type_icon_$mime", $icon ); } break 2; } } } /** * Filter the mime type icon. * * @since 2.1.0 * * @param string $icon Path to the mime type icon. * @param string $mime Mime type. * @param int $post_id Attachment ID. Will equal 0 if the function passed * the mime type. */ return apply_filters( 'wp_mime_type_icon', $icon, $mime, $post_id ); } /** * Check for changed slugs for published post objects and save the old slug. * * The function is used when a post object of any type is updated, * by comparing the current and previous post objects. * * If the slug was changed and not already part of the old slugs then it will be * added to the post meta field ('_wp_old_slug') for storing old slugs for that * post. * * The most logically usage of this function is redirecting changed post objects, so * that those that linked to an changed post will be redirected to the new post. * * @since 2.1.0 * * @param int $post_id Post ID. * @param WP_Post $post The Post Object * @param WP_Post $post_before The Previous Post Object */ function wp_check_for_changed_slugs( $post_id, $post, $post_before ) { // Don't bother if it hasn't changed. if ( $post->post_name == $post_before->post_name ) { return; } // We're only concerned with published, non-hierarchical objects. if ( ! ( 'publish' === $post->post_status || ( 'attachment' === get_post_type( $post ) && 'inherit' === $post->post_status ) ) || is_post_type_hierarchical( $post->post_type ) ) { return; } $old_slugs = (array) get_post_meta( $post_id, '_wp_old_slug' ); // If we haven't added this old slug before, add it now. if ( ! empty( $post_before->post_name ) && ! in_array( $post_before->post_name, $old_slugs ) ) { add_post_meta( $post_id, '_wp_old_slug', $post_before->post_name ); } // If the new slug was used previously, delete it from the list. if ( in_array( $post->post_name, $old_slugs ) ) { delete_post_meta( $post_id, '_wp_old_slug', $post->post_name ); } } /** * Retrieve the private post SQL based on capability. * * This function provides a standardized way to appropriately select on the * post_status of a post type. The function will return a piece of SQL code * that can be added to a WHERE clause; this SQL is constructed to allow all * published posts, and all private posts to which the user has access. * * @since 2.2.0 * @since 4.3.0 Added the ability to pass an array to `$post_type`. * * @param string|array $post_type Single post type or an array of post types. Currently only supports 'post' or 'page'. * @return string SQL code that can be added to a where clause. */ function get_private_posts_cap_sql( $post_type ) { return get_posts_by_author_sql( $post_type, false ); } /** * Retrieve the post SQL based on capability, author, and type. * * @since 3.0.0 * @since 4.3.0 Introduced the ability to pass an array of post types to `$post_type`. * * @see get_private_posts_cap_sql() * @global wpdb $wpdb WordPress database abstraction object. * * @param array|string $post_type Single post type or an array of post types. * @param bool $full Optional. Returns a full WHERE statement instead of just * an 'andalso' term. Default true. * @param int $post_author Optional. Query posts having a single author ID. Default null. * @param bool $public_only Optional. Only return public posts. Skips cap checks for * $current_user. Default false. * @return string SQL WHERE code that can be added to a query. */ function get_posts_by_author_sql( $post_type, $full = true, $post_author = null, $public_only = false ) { global $wpdb; if ( is_array( $post_type ) ) { $post_types = $post_type; } else { $post_types = array( $post_type ); } $post_type_clauses = array(); foreach ( $post_types as $post_type ) { $post_type_obj = get_post_type_object( $post_type ); if ( ! $post_type_obj ) { continue; } /** * Filter the capability to read private posts for a custom post type * when generating SQL for getting posts by author. * * @since 2.2.0 * @deprecated 3.2.0 The hook transitioned from "somewhat useless" to "totally useless". * * @param string $cap Capability. */ if ( ! $cap = apply_filters( 'pub_priv_sql_capability', '' ) ) { $cap = current_user_can( $post_type_obj->cap->read_private_posts ); } // Only need to check the cap if $public_only is false. $post_status_sql = "post_status = 'publish'"; if ( false === $public_only ) { if ( $cap ) { // Does the user have the capability to view private posts? Guess so. $post_status_sql .= " OR post_status = 'private'"; } elseif ( is_user_logged_in() ) { // Users can view their own private posts. $id = get_current_user_id(); if ( null === $post_author || ! $full ) { $post_status_sql .= " OR post_status = 'private' AND post_author = $id"; } elseif ( $id == (int) $post_author ) { $post_status_sql .= " OR post_status = 'private'"; } // else none } // else none } $post_type_clauses[] = "( post_type = '" . $post_type . "' AND ( $post_status_sql ) )"; } if ( empty( $post_type_clauses ) ) { return $full ? 'WHERE 1 = 0' : '1 = 0'; } $sql = '( '. implode( ' OR ', $post_type_clauses ) . ' )'; if ( null !== $post_author ) { $sql .= $wpdb->prepare( ' AND post_author = %d', $post_author ); } if ( $full ) { $sql = 'WHERE ' . $sql; } return $sql; } /** * Retrieve the date that the last post was published. * * The server timezone is the default and is the difference between GMT and * server time. The 'blog' value is the date when the last post was posted. The * 'gmt' is when the last post was posted in GMT formatted date. * * @since 0.71 * @since 4.4.0 The `$post_type` argument was added. * * @param string $timezone Optional. The timezone for the timestamp. Accepts 'server', 'blog', or 'gmt'. * 'server' uses the server's internal timezone. * 'blog' uses the `post_modified` field, which proxies to the timezone set for the site. * 'gmt' uses the `post_modified_gmt` field. * Default 'server'. * @param string $post_type Optional. The post type to check. Default 'any'. * @return string The date of the last post. */ function get_lastpostdate( $timezone = 'server', $post_type = 'any' ) { /** * Filter the date the last post was published. * * @since 2.3.0 * * @param string $date Date the last post was published. * @param string $timezone Location to use for getting the post published date. * See {@see get_lastpostdate()} for accepted `$timezone` values. */ return apply_filters( 'get_lastpostdate', _get_last_post_time( $timezone, 'date', $post_type ), $timezone ); } /** * Get the timestamp of the last time any post was modified. * * The server timezone is the default and is the difference between GMT and * server time. The 'blog' value is just when the last post was modified. The * 'gmt' is when the last post was modified in GMT time. * * @since 1.2.0 * @since 4.4.0 The `$post_type` argument was added. * * @param string $timezone Optional. The timezone for the timestamp. See {@see get_lastpostdate()} * for information on accepted values. * Default 'server'. * @param string $post_type Optional. The post type to check. Default 'any'. * @return string The timestamp. */ function get_lastpostmodified( $timezone = 'server', $post_type = 'any' ) { /** * Pre-filter the return value of get_lastpostmodified() before the query is run. * * @since 4.4.0 * * @param string $lastpostmodified Date the last post was modified. * Returning anything other than false will short-circuit the function. * @param string $timezone Location to use for getting the post modified date. * See {@see get_lastpostdate()} for accepted `$timezone` values. * @param string $post_type The post type to check. */ $lastpostmodified = apply_filters( 'pre_get_lastpostmodified', false, $timezone, $post_type ); if ( false !== $lastpostmodified ) { return $lastpostmodified; } $lastpostmodified = _get_last_post_time( $timezone, 'modified', $post_type ); $lastpostdate = get_lastpostdate($timezone); if ( $lastpostdate > $lastpostmodified ) { $lastpostmodified = $lastpostdate; } /** * Filter the date the last post was modified. * * @since 2.3.0 * * @param string $lastpostmodified Date the last post was modified. * @param string $timezone Location to use for getting the post modified date. * See {@see get_lastpostdate()} for accepted `$timezone` values. */ return apply_filters( 'get_lastpostmodified', $lastpostmodified, $timezone ); } /** * Get the timestamp of the last time any post was modified or published. * * @since 3.1.0 * @since 4.4.0 The `$post_type` argument was added. * @access private * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $timezone The timezone for the timestamp. See get_lastpostdate(). * for information on accepted values. * @param string $field Post field to check. Accepts 'date' or 'modified'. * @param string $post_type Optional. The post type to check. Default 'any'. * @return string|false The timestamp. */ function _get_last_post_time( $timezone, $field, $post_type = 'any' ) { global $wpdb; if ( ! in_array( $field, array( 'date', 'modified' ) ) ) { return false; } $timezone = strtolower( $timezone ); $key = "lastpost{$field}:$timezone"; if ( 'any' !== $post_type ) { $key .= ':' . sanitize_key( $post_type ); } $date = wp_cache_get( $key, 'timeinfo' ); if ( ! $date ) { if ( 'any' === $post_type ) { $post_types = get_post_types( array( 'public' => true ) ); array_walk( $post_types, array( $wpdb, 'escape_by_ref' ) ); $post_types = "'" . implode( "', '", $post_types ) . "'"; } else { $post_types = "'" . sanitize_key( $post_type ) . "'"; } switch ( $timezone ) { case 'gmt': $date = $wpdb->get_var("SELECT post_{$field}_gmt FROM $wpdb->posts WHERE post_status = 'publish' AND post_type IN ({$post_types}) ORDER BY post_{$field}_gmt DESC LIMIT 1"); break; case 'blog': $date = $wpdb->get_var("SELECT post_{$field} FROM $wpdb->posts WHERE post_status = 'publish' AND post_type IN ({$post_types}) ORDER BY post_{$field}_gmt DESC LIMIT 1"); break; case 'server': $add_seconds_server = date( 'Z' ); $date = $wpdb->get_var("SELECT DATE_ADD(post_{$field}_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $wpdb->posts WHERE post_status = 'publish' AND post_type IN ({$post_types}) ORDER BY post_{$field}_gmt DESC LIMIT 1"); break; } if ( $date ) { wp_cache_set( $key, $date, 'timeinfo' ); } } return $date; } /** * Updates posts in cache. * * @since 1.5.1 * * @param array $posts Array of post objects, passed by reference. */ function update_post_cache( &$posts ) { if ( ! $posts ) return; foreach ( $posts as $post ) wp_cache_add( $post->ID, $post, 'posts' ); } /** * Will clean the post in the cache. * * Cleaning means delete from the cache of the post. Will call to clean the term * object cache associated with the post ID. * * This function not run if $_wp_suspend_cache_invalidation is not empty. See * wp_suspend_cache_invalidation(). * * @since 2.0.0 * * @global bool $_wp_suspend_cache_invalidation * * @param int|WP_Post $post Post ID or post object to remove from the cache. */ function clean_post_cache( $post ) { global $_wp_suspend_cache_invalidation; if ( ! empty( $_wp_suspend_cache_invalidation ) ) return; $post = get_post( $post ); if ( empty( $post ) ) return; wp_cache_delete( $post->ID, 'posts' ); wp_cache_delete( $post->ID, 'post_meta' ); clean_object_term_cache( $post->ID, $post->post_type ); wp_cache_delete( 'wp_get_archives', 'general' ); /** * Fires immediately after the given post's cache is cleaned. * * @since 2.5.0 * * @param int $post_id Post ID. * @param WP_Post $post Post object. */ do_action( 'clean_post_cache', $post->ID, $post ); if ( 'page' == $post->post_type ) { wp_cache_delete( 'all_page_ids', 'posts' ); /** * Fires immediately after the given page's cache is cleaned. * * @since 2.5.0 * * @param int $post_id Post ID. */ do_action( 'clean_page_cache', $post->ID ); } wp_cache_set( 'last_changed', microtime(), 'posts' ); } /** * Call major cache updating functions for list of Post objects. * * @since 1.5.0 * * @param array $posts Array of Post objects * @param string $post_type Optional. Post type. Default 'post'. * @param bool $update_term_cache Optional. Whether to update the term cache. Default true. * @param bool $update_meta_cache Optional. Whether to update the meta cache. Default true. */ function update_post_caches( &$posts, $post_type = 'post', $update_term_cache = true, $update_meta_cache = true ) { // No point in doing all this work if we didn't match any posts. if ( !$posts ) return; update_post_cache($posts); $post_ids = array(); foreach ( $posts as $post ) $post_ids[] = $post->ID; if ( ! $post_type ) $post_type = 'any'; if ( $update_term_cache ) { if ( is_array($post_type) ) { $ptypes = $post_type; } elseif ( 'any' == $post_type ) { $ptypes = array(); // Just use the post_types in the supplied posts. foreach ( $posts as $post ) { $ptypes[] = $post->post_type; } $ptypes = array_unique($ptypes); } else { $ptypes = array($post_type); } if ( ! empty($ptypes) ) update_object_term_cache($post_ids, $ptypes); } if ( $update_meta_cache ) update_postmeta_cache($post_ids); } /** * Updates metadata cache for list of post IDs. * * Performs SQL query to retrieve the metadata for the post IDs and updates the * metadata cache for the posts. Therefore, the functions, which call this * function, do not need to perform SQL queries on their own. * * @since 2.1.0 * * @param array $post_ids List of post IDs. * @return array|false Returns false if there is nothing to update or an array * of metadata. */ function update_postmeta_cache( $post_ids ) { return update_meta_cache('post', $post_ids); } /** * Will clean the attachment in the cache. * * Cleaning means delete from the cache. Optionally will clean the term * object cache associated with the attachment ID. * * This function will not run if $_wp_suspend_cache_invalidation is not empty. * * @since 3.0.0 * * @global bool $_wp_suspend_cache_invalidation * * @param int $id The attachment ID in the cache to clean. * @param bool $clean_terms Optional. Whether to clean terms cache. Default false. */ function clean_attachment_cache( $id, $clean_terms = false ) { global $_wp_suspend_cache_invalidation; if ( !empty($_wp_suspend_cache_invalidation) ) return; $id = (int) $id; wp_cache_delete($id, 'posts'); wp_cache_delete($id, 'post_meta'); if ( $clean_terms ) clean_object_term_cache($id, 'attachment'); /** * Fires after the given attachment's cache is cleaned. * * @since 3.0.0 * * @param int $id Attachment ID. */ do_action( 'clean_attachment_cache', $id ); } // // Hooks // /** * Hook for managing future post transitions to published. * * @since 2.3.0 * @access private * * @see wp_clear_scheduled_hook() * @global wpdb $wpdb WordPress database abstraction object. * * @param string $new_status New post status. * @param string $old_status Previous post status. * @param WP_Post $post Post object. */ function _transition_post_status( $new_status, $old_status, $post ) { global $wpdb; if ( $old_status != 'publish' && $new_status == 'publish' ) { // Reset GUID if transitioning to publish and it is empty. if ( '' == get_the_guid($post->ID) ) $wpdb->update( $wpdb->posts, array( 'guid' => get_permalink( $post->ID ) ), array( 'ID' => $post->ID ) ); /** * Fires when a post's status is transitioned from private to published. * * @since 1.5.0 * @deprecated 2.3.0 Use 'private_to_publish' instead. * * @param int $post_id Post ID. */ do_action('private_to_published', $post->ID); } // If published posts changed clear the lastpostmodified cache. if ( 'publish' == $new_status || 'publish' == $old_status) { foreach ( array( 'server', 'gmt', 'blog' ) as $timezone ) { wp_cache_delete( "lastpostmodified:$timezone", 'timeinfo' ); wp_cache_delete( "lastpostdate:$timezone", 'timeinfo' ); wp_cache_delete( "lastpostdate:$timezone:{$post->post_type}", 'timeinfo' ); } } if ( $new_status !== $old_status ) { wp_cache_delete( _count_posts_cache_key( $post->post_type ), 'counts' ); wp_cache_delete( _count_posts_cache_key( $post->post_type, 'readable' ), 'counts' ); } // Always clears the hook in case the post status bounced from future to draft. wp_clear_scheduled_hook('publish_future_post', array( $post->ID ) ); } /** * Hook used to schedule publication for a post marked for the future. * * The $post properties used and must exist are 'ID' and 'post_date_gmt'. * * @since 2.3.0 * @access private * * @param int $deprecated Not used. Can be set to null. Never implemented. Not marked * as deprecated with _deprecated_argument() as it conflicts with * wp_transition_post_status() and the default filter for * {@see _future_post_hook()}. * @param WP_Post $post Post object. */ function _future_post_hook( $deprecated, $post ) { wp_clear_scheduled_hook( 'publish_future_post', array( $post->ID ) ); wp_schedule_single_event( strtotime( get_gmt_from_date( $post->post_date ) . ' GMT') , 'publish_future_post', array( $post->ID ) ); } /** * Hook to schedule pings and enclosures when a post is published. * * Uses XMLRPC_REQUEST and WP_IMPORTING constants. * * @since 2.3.0 * @access private * * @param int $post_id The ID in the database table of the post being published. */ function _publish_post_hook( $post_id ) { if ( defined( 'XMLRPC_REQUEST' ) ) { /** * Fires when _publish_post_hook() is called during an XML-RPC request. * * @since 2.1.0 * * @param int $post_id Post ID. */ do_action( 'xmlrpc_publish_post', $post_id ); } if ( defined('WP_IMPORTING') ) return; if ( get_option('default_pingback_flag') ) add_post_meta( $post_id, '_pingme', '1' ); add_post_meta( $post_id, '_encloseme', '1' ); wp_schedule_single_event(time(), 'do_pings'); } /** * Return the post's parent's post_ID * * @since 3.1.0 * * @param int $post_ID * * @return int|false Post parent ID, otherwise false. */ function wp_get_post_parent_id( $post_ID ) { $post = get_post( $post_ID ); if ( !$post || is_wp_error( $post ) ) return false; return (int) $post->post_parent; } /** * Check the given subset of the post hierarchy for hierarchy loops. * * Prevents loops from forming and breaks those that it finds. Attached * to the 'wp_insert_post_parent' filter. * * @since 3.1.0 * * @see wp_find_hierarchy_loop() * * @param int $post_parent ID of the parent for the post we're checking. * @param int $post_ID ID of the post we're checking. * @return int The new post_parent for the post, 0 otherwise. */ function wp_check_post_hierarchy_for_loops( $post_parent, $post_ID ) { // Nothing fancy here - bail. if ( !$post_parent ) return 0; // New post can't cause a loop. if ( empty( $post_ID ) ) return $post_parent; // Can't be its own parent. if ( $post_parent == $post_ID ) return 0; // Now look for larger loops. if ( !$loop = wp_find_hierarchy_loop( 'wp_get_post_parent_id', $post_ID, $post_parent ) ) return $post_parent; // No loop // Setting $post_parent to the given value causes a loop. if ( isset( $loop[$post_ID] ) ) return 0; // There's a loop, but it doesn't contain $post_ID. Break the loop. foreach ( array_keys( $loop ) as $loop_member ) wp_update_post( array( 'ID' => $loop_member, 'post_parent' => 0 ) ); return $post_parent; } /** * Set a post thumbnail. * * @since 3.1.0 * * @param int|WP_Post $post Post ID or post object where thumbnail should be attached. * @param int $thumbnail_id Thumbnail to attach. * @return int|bool True on success, false on failure. */ function set_post_thumbnail( $post, $thumbnail_id ) { $post = get_post( $post ); $thumbnail_id = absint( $thumbnail_id ); if ( $post && $thumbnail_id && get_post( $thumbnail_id ) ) { if ( wp_get_attachment_image( $thumbnail_id, 'thumbnail' ) ) return update_post_meta( $post->ID, '_thumbnail_id', $thumbnail_id ); else return delete_post_meta( $post->ID, '_thumbnail_id' ); } return false; } /** * Remove a post thumbnail. * * @since 3.3.0 * * @param int|WP_Post $post Post ID or post object where thumbnail should be removed from. * @return bool True on success, false on failure. */ function delete_post_thumbnail( $post ) { $post = get_post( $post ); if ( $post ) return delete_post_meta( $post->ID, '_thumbnail_id' ); return false; } /** * Delete auto-drafts for new posts that are > 7 days old. * * @since 3.4.0 * * @global wpdb $wpdb WordPress database abstraction object. */ function wp_delete_auto_drafts() { global $wpdb; // Cleanup old auto-drafts more than 7 days old. $old_posts = $wpdb->get_col( "SELECT ID FROM $wpdb->posts WHERE post_status = 'auto-draft' AND DATE_SUB( NOW(), INTERVAL 7 DAY ) > post_date" ); foreach ( (array) $old_posts as $delete ) { // Force delete. wp_delete_post( $delete, true ); } } /** * Update the custom taxonomies' term counts when a post's status is changed. * * For example, default posts term counts (for custom taxonomies) don't include * private / draft posts. * * @since 3.3.0 * @access private * * @param string $new_status New post status. * @param string $old_status Old post status. * @param WP_Post $post Post object. */ function _update_term_count_on_transition_post_status( $new_status, $old_status, $post ) { // Update counts for the post's terms. foreach ( (array) get_object_taxonomies( $post->post_type ) as $taxonomy ) { $tt_ids = wp_get_object_terms( $post->ID, $taxonomy, array( 'fields' => 'tt_ids' ) ); wp_update_term_count( $tt_ids, $taxonomy ); } } /** * Adds any posts from the given ids to the cache that do not already exist in cache * * @since 3.4.0 * @access private * * @see update_post_caches() * * @global wpdb $wpdb WordPress database abstraction object. * * @param array $ids ID list. * @param bool $update_term_cache Optional. Whether to update the term cache. Default true. * @param bool $update_meta_cache Optional. Whether to update the meta cache. Default true. */ function _prime_post_caches( $ids, $update_term_cache = true, $update_meta_cache = true ) { global $wpdb; $non_cached_ids = _get_non_cached_ids( $ids, 'posts' ); if ( !empty( $non_cached_ids ) ) { $fresh_posts = $wpdb->get_results( sprintf( "SELECT $wpdb->posts.* FROM $wpdb->posts WHERE ID IN (%s)", join( ",", $non_cached_ids ) ) ); update_post_caches( $fresh_posts, 'any', $update_term_cache, $update_meta_cache ); } }