";
- return $r;
-}
-
-/**
- * Prints the form in the Custom Fields meta box.
- *
- * @since 1.2.0
- *
- * @global wpdb $wpdb WordPress database abstraction object.
- *
- * @param WP_Post $post Optional. The post being edited.
- */
-function meta_form( $post = null ) {
- global $wpdb;
- $post = get_post( $post );
-
- /**
- * Filter values for the meta key dropdown in the Custom Fields meta box.
- *
- * Returning a non-null value will effectively short-circuit and avoid a
- * potentially expensive query against postmeta.
- *
- * @since 4.4.0
- *
- * @param array|null $keys Pre-defined meta keys to be used in place of a postmeta query. Default null.
- */
- $keys = apply_filters( 'postmeta_form_keys', null );
-
- if ( null === $keys ) {
- /**
- * Filter the number of custom fields to retrieve for the drop-down
- * in the Custom Fields meta box.
- *
- * @since 2.1.0
- *
- * @param int $limit Number of custom fields to retrieve. Default 30.
- */
- $limit = apply_filters( 'postmeta_form_limit', 30 );
- $sql = "SELECT DISTINCT meta_key
- FROM $wpdb->postmeta
- WHERE meta_key NOT BETWEEN '_' AND '_z'
- HAVING meta_key NOT LIKE %s
- ORDER BY meta_key
- LIMIT %d";
- $keys = $wpdb->get_col( $wpdb->prepare( $sql, $wpdb->esc_like( '_' ) . '%', $limit ) );
- }
-
- if ( $keys ) {
- natcasesort( $keys );
- $meta_key_input_id = 'metakeyselect';
- } else {
- $meta_key_input_id = 'metakeyinput';
- }
-?>
-
";
-
- return $i;
-
-}
-
-/**
- * Removes a meta box from one or more screens.
- *
- * @since 2.6.0
- * @since 4.4.0 The `$screen` parameter now accepts an array of screen IDs.
- *
- * @global array $wp_meta_boxes
- *
- * @param string $id Meta box ID (used in the 'id' attribute for the meta box).
- * @param string|array|WP_Screen $screen The screen or screens on which the meta box is shown (such as a
- * post type, 'link', or 'comment'). Accepts a single screen ID,
- * WP_Screen object, or array of screen IDs.
- * @param string $context Optional. The context within the screen where the boxes
- * should display. Available contexts vary from screen to
- * screen. Post edit screen contexts include 'normal', 'side',
- * and 'advanced'. Comments screen contexts include 'normal'
- * and 'side'. Menus meta boxes (accordion sections) all use
- * the 'side' context. Global default is 'advanced'.
- */
-function remove_meta_box( $id, $screen, $context ) {
- global $wp_meta_boxes;
-
- if ( empty( $screen ) ) {
- $screen = get_current_screen();
- } elseif ( is_string( $screen ) ) {
- $screen = convert_to_screen( $screen );
- } elseif ( is_array( $screen ) ) {
- foreach ( $screen as $single_screen ) {
- remove_meta_box( $id, $single_screen, $context );
- }
- }
-
- if ( ! isset( $screen->id ) ) {
- return;
- }
-
- $page = $screen->id;
-
- if ( !isset($wp_meta_boxes) )
- $wp_meta_boxes = array();
- if ( !isset($wp_meta_boxes[$page]) )
- $wp_meta_boxes[$page] = array();
- if ( !isset($wp_meta_boxes[$page][$context]) )
- $wp_meta_boxes[$page][$context] = array();
-
- foreach ( array('high', 'core', 'default', 'low') as $priority )
- $wp_meta_boxes[$page][$context][$priority][$id] = false;
-}
-
-/**
- * Meta Box Accordion Template Function
- *
- * Largely made up of abstracted code from {@link do_meta_boxes()}, this
- * function serves to build meta boxes as list items for display as
- * a collapsible accordion.
- *
- * @since 3.6.0
- *
- * @uses global $wp_meta_boxes Used to retrieve registered meta boxes.
- *
- * @param string|object $screen The screen identifier.
- * @param string $context The meta box context.
- * @param mixed $object gets passed to the section callback function as first parameter.
- * @return int number of meta boxes as accordion sections.
- */
-function do_accordion_sections( $screen, $context, $object ) {
- global $wp_meta_boxes;
-
- wp_enqueue_script( 'accordion' );
-
- if ( empty( $screen ) )
- $screen = get_current_screen();
- elseif ( is_string( $screen ) )
- $screen = convert_to_screen( $screen );
-
- $page = $screen->id;
-
- $hidden = get_hidden_meta_boxes( $screen );
- ?>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- $id, 'title' => $title, 'callback' => $callback);
-}
-
-/**
- * Add a new field to a section of a settings page
- *
- * Part of the Settings API. Use this to define a settings field that will show
- * as part of a settings section inside a settings page. The fields are shown using
- * do_settings_fields() in do_settings-sections()
- *
- * The $callback argument should be the name of a function that echoes out the
- * html input tags for this setting field. Use get_option() to retrieve existing
- * values to show.
- *
- * @since 2.7.0
- * @since 4.2.0 The `$class` argument was added.
- *
- * @global $wp_settings_fields Storage array of settings fields and info about their pages/sections
- *
- * @param string $id Slug-name to identify the field. Used in the 'id' attribute of tags.
- * @param string $title Formatted title of the field. Shown as the label for the field
- * during output.
- * @param string $callback Function that fills the field with the desired form inputs. The
- * function should echo its output.
- * @param string $page The slug-name of the settings page on which to show the section
- * (general, reading, writing, ...).
- * @param string $section Optional. The slug-name of the section of the settings page
- * in which to show the box. Default 'default'.
- * @param array $args {
- * Optional. Extra arguments used when outputting the field.
- *
- * @type string $label_for When supplied, the setting title will be wrapped
- * in a `