Move Walker_Category and Walker_CategoryDropdown into their own files via svn cp. Remove them from category-template.php. Load them in category.php. svn cp category.php over to category-functions.php, which also loads now in category.php.

See #33413.

Built from https://develop.svn.wordpress.org/trunk@34110


git-svn-id: http://core.svn.wordpress.org/trunk@34078 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Scott Taylor 2015-09-14 03:10:24 +00:00
parent 4cec121d0b
commit 172e37b007
6 changed files with 629 additions and 600 deletions

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@ -0,0 +1,340 @@
<?php
/**
* WordPress Category API
*
* @package WordPress
*/
/**
* Retrieve list of category objects.
*
* If you change the type to 'link' in the arguments, then the link categories
* will be returned instead. Also all categories will be updated to be backwards
* compatible with pre-2.3 plugins and themes.
*
* @since 2.1.0
* @see get_terms() Type of arguments that can be changed.
* @link https://codex.wordpress.org/Function_Reference/get_categories
*
* @param string|array $args Optional. Change the defaults retrieving categories.
* @return array List of categories.
*/
function get_categories( $args = '' ) {
$defaults = array( 'taxonomy' => 'category' );
$args = wp_parse_args( $args, $defaults );
$taxonomy = $args['taxonomy'];
/**
* Filter the taxonomy used to retrieve terms when calling {@see get_categories()}.
*
* @since 2.7.0
*
* @param string $taxonomy Taxonomy to retrieve terms from.
* @param array $args An array of arguments. See {@see get_terms()}.
*/
$taxonomy = apply_filters( 'get_categories_taxonomy', $taxonomy, $args );
// Back compat
if ( isset($args['type']) && 'link' == $args['type'] ) {
_deprecated_argument( __FUNCTION__, '3.0', '' );
$taxonomy = $args['taxonomy'] = 'link_category';
}
$categories = (array) get_terms( $taxonomy, $args );
foreach ( array_keys( $categories ) as $k )
_make_cat_compat( $categories[$k] );
return $categories;
}
/**
* Retrieves category data given a category ID or category object.
*
* If you pass the $category parameter an object, which is assumed to be the
* category row object retrieved the database. It will cache the category data.
*
* If you pass $category an integer of the category ID, then that category will
* be retrieved from the database, if it isn't already cached, and pass it back.
*
* If you look at get_term(), then both types will be passed through several
* filters and finally sanitized based on the $filter parameter value.
*
* The category will converted to maintain backwards compatibility.
*
* @since 1.5.1
*
* @param int|object $category Category ID or Category row object
* @param string $output Optional. Constant OBJECT, ARRAY_A, or ARRAY_N
* @param string $filter Optional. Default is raw or no WordPress defined filter will applied.
* @return object|array|WP_Error|null Category data in type defined by $output parameter.
* WP_Error if $category is empty, null if it does not exist.
*/
function get_category( $category, $output = OBJECT, $filter = 'raw' ) {
$category = get_term( $category, 'category', $output, $filter );
if ( is_wp_error( $category ) )
return $category;
_make_cat_compat( $category );
return $category;
}
/**
* Retrieve category based on URL containing the category slug.
*
* Breaks the $category_path parameter up to get the category slug.
*
* Tries to find the child path and will return it. If it doesn't find a
* match, then it will return the first category matching slug, if $full_match,
* is set to false. If it does not, then it will return null.
*
* It is also possible that it will return a WP_Error object on failure. Check
* for it when using this function.
*
* @since 2.1.0
*
* @param string $category_path URL containing category slugs.
* @param bool $full_match Optional. Whether full path should be matched.
* @param string $output Optional. Constant OBJECT, ARRAY_A, or ARRAY_N
* @return object|array|WP_Error|void Type is based on $output value.
*/
function get_category_by_path( $category_path, $full_match = true, $output = OBJECT ) {
$category_path = rawurlencode( urldecode( $category_path ) );
$category_path = str_replace( '%2F', '/', $category_path );
$category_path = str_replace( '%20', ' ', $category_path );
$category_paths = '/' . trim( $category_path, '/' );
$leaf_path = sanitize_title( basename( $category_paths ) );
$category_paths = explode( '/', $category_paths );
$full_path = '';
foreach ( (array) $category_paths as $pathdir ) {
$full_path .= ( $pathdir != '' ? '/' : '' ) . sanitize_title( $pathdir );
}
$categories = get_terms( 'category', array('get' => 'all', 'slug' => $leaf_path) );
if ( empty( $categories ) ) {
return;
}
foreach ( $categories as $category ) {
$path = '/' . $leaf_path;
$curcategory = $category;
while ( ( $curcategory->parent != 0 ) && ( $curcategory->parent != $curcategory->term_id ) ) {
$curcategory = get_term( $curcategory->parent, 'category' );
if ( is_wp_error( $curcategory ) ) {
return $curcategory;
}
$path = '/' . $curcategory->slug . $path;
}
if ( $path == $full_path ) {
$category = get_term( $category->term_id, 'category', $output );
_make_cat_compat( $category );
return $category;
}
}
// If full matching is not required, return the first cat that matches the leaf.
if ( ! $full_match ) {
$category = get_term( reset( $categories )->term_id, 'category', $output );
_make_cat_compat( $category );
return $category;
}
}
/**
* Retrieve category object by category slug.
*
* @since 2.3.0
*
* @param string $slug The category slug.
* @return object Category data object
*/
function get_category_by_slug( $slug ) {
$category = get_term_by( 'slug', $slug, 'category' );
if ( $category )
_make_cat_compat( $category );
return $category;
}
/**
* Retrieve the ID of a category from its name.
*
* @since 1.0.0
*
* @param string $cat_name Category name.
* @return int 0, if failure and ID of category on success.
*/
function get_cat_ID( $cat_name ) {
$cat = get_term_by( 'name', $cat_name, 'category' );
if ( $cat )
return $cat->term_id;
return 0;
}
/**
* Retrieve the name of a category from its ID.
*
* @since 1.0.0
*
* @param int $cat_id Category ID
* @return string Category name, or an empty string if category doesn't exist.
*/
function get_cat_name( $cat_id ) {
$cat_id = (int) $cat_id;
$category = get_term( $cat_id, 'category' );
if ( ! $category || is_wp_error( $category ) )
return '';
return $category->name;
}
/**
* Check if a category is an ancestor of another category.
*
* You can use either an id or the category object for both parameters. If you
* use an integer the category will be retrieved.
*
* @since 2.1.0
*
* @param int|object $cat1 ID or object to check if this is the parent category.
* @param int|object $cat2 The child category.
* @return bool Whether $cat2 is child of $cat1
*/
function cat_is_ancestor_of( $cat1, $cat2 ) {
return term_is_ancestor_of( $cat1, $cat2, 'category' );
}
/**
* Sanitizes category data based on context.
*
* @since 2.3.0
*
* @param object|array $category Category data
* @param string $context Optional. Default is 'display'.
* @return object|array Same type as $category with sanitized data for safe use.
*/
function sanitize_category( $category, $context = 'display' ) {
return sanitize_term( $category, 'category', $context );
}
/**
* Sanitizes data in single category key field.
*
* @since 2.3.0
*
* @param string $field Category key to sanitize
* @param mixed $value Category value to sanitize
* @param int $cat_id Category ID
* @param string $context What filter to use, 'raw', 'display', etc.
* @return mixed Same type as $value after $value has been sanitized.
*/
function sanitize_category_field( $field, $value, $cat_id, $context ) {
return sanitize_term_field( $field, $value, $cat_id, 'category', $context );
}
/* Tags */
/**
* Retrieves all post tags.
*
* @since 2.3.0
* @see get_terms() For list of arguments to pass.
*
* @param string|array $args Tag arguments to use when retrieving tags.
* @return array List of tags.
*/
function get_tags( $args = '' ) {
$tags = get_terms( 'post_tag', $args );
if ( empty( $tags ) ) {
$return = array();
return $return;
}
/**
* Filter the array of term objects returned for the 'post_tag' taxonomy.
*
* @since 2.3.0
*
* @param array $tags Array of 'post_tag' term objects.
* @param array $args An array of arguments. @see get_terms()
*/
$tags = apply_filters( 'get_tags', $tags, $args );
return $tags;
}
/**
* Retrieve post tag by tag ID or tag object.
*
* If you pass the $tag parameter an object, which is assumed to be the tag row
* object retrieved the database. It will cache the tag data.
*
* If you pass $tag an integer of the tag ID, then that tag will
* be retrieved from the database, if it isn't already cached, and pass it back.
*
* If you look at get_term(), then both types will be passed through several
* filters and finally sanitized based on the $filter parameter value.
*
* @since 2.3.0
*
* @param int|object $tag
* @param string $output Optional. Constant OBJECT, ARRAY_A, or ARRAY_N
* @param string $filter Optional. Default is raw or no WordPress defined filter will applied.
* @return object|array|WP_Error|null Tag data in type defined by $output parameter. WP_Error if $tag is empty, null if it does not exist.
*/
function get_tag( $tag, $output = OBJECT, $filter = 'raw' ) {
return get_term( $tag, 'post_tag', $output, $filter );
}
/* Cache */
/**
* Remove the category cache data based on ID.
*
* @since 2.1.0
*
* @param int $id Category ID
*/
function clean_category_cache( $id ) {
clean_term_cache( $id, 'category' );
}
/**
* Update category structure to old pre 2.3 from new taxonomy structure.
*
* This function was added for the taxonomy support to update the new category
* structure with the old category one. This will maintain compatibility with
* plugins and themes which depend on the old key or property names.
*
* The parameter should only be passed a variable and not create the array or
* object inline to the parameter. The reason for this is that parameter is
* passed by reference and PHP will fail unless it has the variable.
*
* There is no return value, because everything is updated on the variable you
* pass to it. This is one of the features with using pass by reference in PHP.
*
* @since 2.3.0
* @access private
*
* @param array|object $category Category Row object or array
*/
function _make_cat_compat( &$category ) {
if ( is_object( $category ) && ! is_wp_error( $category ) ) {
$category->cat_ID = &$category->term_id;
$category->category_count = &$category->count;
$category->category_description = &$category->description;
$category->cat_name = &$category->name;
$category->category_nicename = &$category->slug;
$category->category_parent = &$category->parent;
} elseif ( is_array( $category ) && isset( $category['term_id'] ) ) {
$category['cat_ID'] = &$category['term_id'];
$category['category_count'] = &$category['count'];
$category['category_description'] = &$category['description'];
$category['cat_name'] = &$category['name'];
$category['category_nicename'] = &$category['slug'];
$category['category_parent'] = &$category['parent'];
}
}

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@ -972,274 +972,6 @@ function walk_category_dropdown_tree() {
return call_user_func_array( array( $walker, 'walk' ), $args );
}
/**
* Create HTML list of categories.
*
* @package WordPress
* @since 2.1.0
* @uses Walker
*/
class Walker_Category extends Walker {
/**
* What the class handles.
*
* @see Walker::$tree_type
* @since 2.1.0
* @var string
*/
public $tree_type = 'category';
/**
* Database fields to use.
*
* @see Walker::$db_fields
* @since 2.1.0
* @todo Decouple this
* @var array
*/
public $db_fields = array ('parent' => 'parent', 'id' => 'term_id');
/**
* Starts the list before the elements are added.
*
* @see Walker::start_lvl()
*
* @since 2.1.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of category. Used for tab indentation.
* @param array $args An array of arguments. Will only append content if style argument value is 'list'.
* @see wp_list_categories()
*/
public function start_lvl( &$output, $depth = 0, $args = array() ) {
if ( 'list' != $args['style'] )
return;
$indent = str_repeat("\t", $depth);
$output .= "$indent<ul class='children'>\n";
}
/**
* Ends the list of after the elements are added.
*
* @see Walker::end_lvl()
*
* @since 2.1.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of category. Used for tab indentation.
* @param array $args An array of arguments. Will only append content if style argument value is 'list'.
* @wsee wp_list_categories()
*/
public function end_lvl( &$output, $depth = 0, $args = array() ) {
if ( 'list' != $args['style'] )
return;
$indent = str_repeat("\t", $depth);
$output .= "$indent</ul>\n";
}
/**
* Start the element output.
*
* @see Walker::start_el()
*
* @since 2.1.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $category Category data object.
* @param int $depth Depth of category in reference to parents. Default 0.
* @param array $args An array of arguments. @see wp_list_categories()
* @param int $id ID of the current category.
*/
public function start_el( &$output, $category, $depth = 0, $args = array(), $id = 0 ) {
/** This filter is documented in wp-includes/category-template.php */
$cat_name = apply_filters(
'list_cats',
esc_attr( $category->name ),
$category
);
// Don't generate an element if the category name is empty.
if ( ! $cat_name ) {
return;
}
$link = '<a href="' . esc_url( get_term_link( $category ) ) . '" ';
if ( $args['use_desc_for_title'] && ! empty( $category->description ) ) {
/**
* Filter the category description for display.
*
* @since 1.2.0
*
* @param string $description Category description.
* @param object $category Category object.
*/
$link .= 'title="' . esc_attr( strip_tags( apply_filters( 'category_description', $category->description, $category ) ) ) . '"';
}
$link .= '>';
$link .= $cat_name . '</a>';
if ( ! empty( $args['feed_image'] ) || ! empty( $args['feed'] ) ) {
$link .= ' ';
if ( empty( $args['feed_image'] ) ) {
$link .= '(';
}
$link .= '<a href="' . esc_url( get_term_feed_link( $category->term_id, $category->taxonomy, $args['feed_type'] ) ) . '"';
if ( empty( $args['feed'] ) ) {
$alt = ' alt="' . sprintf(__( 'Feed for all posts filed under %s' ), $cat_name ) . '"';
} else {
$alt = ' alt="' . $args['feed'] . '"';
$name = $args['feed'];
$link .= empty( $args['title'] ) ? '' : $args['title'];
}
$link .= '>';
if ( empty( $args['feed_image'] ) ) {
$link .= $name;
} else {
$link .= "<img src='" . $args['feed_image'] . "'$alt" . ' />';
}
$link .= '</a>';
if ( empty( $args['feed_image'] ) ) {
$link .= ')';
}
}
if ( ! empty( $args['show_count'] ) ) {
$link .= ' (' . number_format_i18n( $category->count ) . ')';
}
if ( 'list' == $args['style'] ) {
$output .= "\t<li";
$css_classes = array(
'cat-item',
'cat-item-' . $category->term_id,
);
if ( ! empty( $args['current_category'] ) ) {
// 'current_category' can be an array, so we use `get_terms()`.
$_current_terms = get_terms( $category->taxonomy, array(
'include' => $args['current_category'],
'hide_empty' => false,
) );
foreach ( $_current_terms as $_current_term ) {
if ( $category->term_id == $_current_term->term_id ) {
$css_classes[] = 'current-cat';
} elseif ( $category->term_id == $_current_term->parent ) {
$css_classes[] = 'current-cat-parent';
}
}
}
/**
* Filter the list of CSS classes to include with each category in the list.
*
* @since 4.2.0
*
* @see wp_list_categories()
*
* @param array $css_classes An array of CSS classes to be applied to each list item.
* @param object $category Category data object.
* @param int $depth Depth of page, used for padding.
* @param array $args An array of wp_list_categories() arguments.
*/
$css_classes = implode( ' ', apply_filters( 'category_css_class', $css_classes, $category, $depth, $args ) );
$output .= ' class="' . $css_classes . '"';
$output .= ">$link\n";
} else {
$output .= "\t$link<br />\n";
}
}
/**
* Ends the element output, if needed.
*
* @see Walker::end_el()
*
* @since 2.1.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $page Not used.
* @param int $depth Depth of category. Not used.
* @param array $args An array of arguments. Only uses 'list' for whether should append to output. @see wp_list_categories()
*/
public function end_el( &$output, $page, $depth = 0, $args = array() ) {
if ( 'list' != $args['style'] )
return;
$output .= "</li>\n";
}
}
/**
* Create HTML dropdown list of Categories.
*
* @package WordPress
* @since 2.1.0
* @uses Walker
*/
class Walker_CategoryDropdown extends Walker {
/**
* @see Walker::$tree_type
* @since 2.1.0
* @var string
*/
public $tree_type = 'category';
/**
* @see Walker::$db_fields
* @since 2.1.0
* @todo Decouple this
* @var array
*/
public $db_fields = array ('parent' => 'parent', 'id' => 'term_id');
/**
* Start the element output.
*
* @see Walker::start_el()
* @since 2.1.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $category Category data object.
* @param int $depth Depth of category. Used for padding.
* @param array $args Uses 'selected', 'show_count', and 'value_field' keys, if they exist.
* See {@see wp_dropdown_categories()}.
*/
public function start_el( &$output, $category, $depth = 0, $args = array(), $id = 0 ) {
$pad = str_repeat('&nbsp;', $depth * 3);
/** This filter is documented in wp-includes/category-template.php */
$cat_name = apply_filters( 'list_cats', $category->name, $category );
if ( isset( $args['value_field'] ) && isset( $category->{$args['value_field']} ) ) {
$value_field = $args['value_field'];
} else {
$value_field = 'term_id';
}
$output .= "\t<option class=\"level-$depth\" value=\"" . esc_attr( $category->{$value_field} ) . "\"";
// Type-juggling causes false matches, so we force everything to a string.
if ( (string) $category->{$value_field} === (string) $args['selected'] )
$output .= ' selected="selected"';
$output .= '>';
$output .= $pad.$cat_name;
if ( $args['show_count'] )
$output .= '&nbsp;&nbsp;('. number_format_i18n( $category->count ) .')';
$output .= "</option>\n";
}
}
//
// Tags
//

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@ -5,336 +5,11 @@
* @package WordPress
*/
/**
* Retrieve list of category objects.
*
* If you change the type to 'link' in the arguments, then the link categories
* will be returned instead. Also all categories will be updated to be backwards
* compatible with pre-2.3 plugins and themes.
*
* @since 2.1.0
* @see get_terms() Type of arguments that can be changed.
* @link https://codex.wordpress.org/Function_Reference/get_categories
*
* @param string|array $args Optional. Change the defaults retrieving categories.
* @return array List of categories.
*/
function get_categories( $args = '' ) {
$defaults = array( 'taxonomy' => 'category' );
$args = wp_parse_args( $args, $defaults );
/** Core category functionality */
require_once( ABSPATH . WPINC . '/category-functions.php' );
$taxonomy = $args['taxonomy'];
/** Walker_Category class */
require_once( ABSPATH . WPINC . '/class-walker-category.php' );
/**
* Filter the taxonomy used to retrieve terms when calling {@see get_categories()}.
*
* @since 2.7.0
*
* @param string $taxonomy Taxonomy to retrieve terms from.
* @param array $args An array of arguments. See {@see get_terms()}.
*/
$taxonomy = apply_filters( 'get_categories_taxonomy', $taxonomy, $args );
// Back compat
if ( isset($args['type']) && 'link' == $args['type'] ) {
_deprecated_argument( __FUNCTION__, '3.0', '' );
$taxonomy = $args['taxonomy'] = 'link_category';
}
$categories = (array) get_terms( $taxonomy, $args );
foreach ( array_keys( $categories ) as $k )
_make_cat_compat( $categories[$k] );
return $categories;
}
/**
* Retrieves category data given a category ID or category object.
*
* If you pass the $category parameter an object, which is assumed to be the
* category row object retrieved the database. It will cache the category data.
*
* If you pass $category an integer of the category ID, then that category will
* be retrieved from the database, if it isn't already cached, and pass it back.
*
* If you look at get_term(), then both types will be passed through several
* filters and finally sanitized based on the $filter parameter value.
*
* The category will converted to maintain backwards compatibility.
*
* @since 1.5.1
*
* @param int|object $category Category ID or Category row object
* @param string $output Optional. Constant OBJECT, ARRAY_A, or ARRAY_N
* @param string $filter Optional. Default is raw or no WordPress defined filter will applied.
* @return object|array|WP_Error|null Category data in type defined by $output parameter.
* WP_Error if $category is empty, null if it does not exist.
*/
function get_category( $category, $output = OBJECT, $filter = 'raw' ) {
$category = get_term( $category, 'category', $output, $filter );
if ( is_wp_error( $category ) )
return $category;
_make_cat_compat( $category );
return $category;
}
/**
* Retrieve category based on URL containing the category slug.
*
* Breaks the $category_path parameter up to get the category slug.
*
* Tries to find the child path and will return it. If it doesn't find a
* match, then it will return the first category matching slug, if $full_match,
* is set to false. If it does not, then it will return null.
*
* It is also possible that it will return a WP_Error object on failure. Check
* for it when using this function.
*
* @since 2.1.0
*
* @param string $category_path URL containing category slugs.
* @param bool $full_match Optional. Whether full path should be matched.
* @param string $output Optional. Constant OBJECT, ARRAY_A, or ARRAY_N
* @return object|array|WP_Error|void Type is based on $output value.
*/
function get_category_by_path( $category_path, $full_match = true, $output = OBJECT ) {
$category_path = rawurlencode( urldecode( $category_path ) );
$category_path = str_replace( '%2F', '/', $category_path );
$category_path = str_replace( '%20', ' ', $category_path );
$category_paths = '/' . trim( $category_path, '/' );
$leaf_path = sanitize_title( basename( $category_paths ) );
$category_paths = explode( '/', $category_paths );
$full_path = '';
foreach ( (array) $category_paths as $pathdir ) {
$full_path .= ( $pathdir != '' ? '/' : '' ) . sanitize_title( $pathdir );
}
$categories = get_terms( 'category', array('get' => 'all', 'slug' => $leaf_path) );
if ( empty( $categories ) ) {
return;
}
foreach ( $categories as $category ) {
$path = '/' . $leaf_path;
$curcategory = $category;
while ( ( $curcategory->parent != 0 ) && ( $curcategory->parent != $curcategory->term_id ) ) {
$curcategory = get_term( $curcategory->parent, 'category' );
if ( is_wp_error( $curcategory ) ) {
return $curcategory;
}
$path = '/' . $curcategory->slug . $path;
}
if ( $path == $full_path ) {
$category = get_term( $category->term_id, 'category', $output );
_make_cat_compat( $category );
return $category;
}
}
// If full matching is not required, return the first cat that matches the leaf.
if ( ! $full_match ) {
$category = get_term( reset( $categories )->term_id, 'category', $output );
_make_cat_compat( $category );
return $category;
}
}
/**
* Retrieve category object by category slug.
*
* @since 2.3.0
*
* @param string $slug The category slug.
* @return object Category data object
*/
function get_category_by_slug( $slug ) {
$category = get_term_by( 'slug', $slug, 'category' );
if ( $category )
_make_cat_compat( $category );
return $category;
}
/**
* Retrieve the ID of a category from its name.
*
* @since 1.0.0
*
* @param string $cat_name Category name.
* @return int 0, if failure and ID of category on success.
*/
function get_cat_ID( $cat_name ) {
$cat = get_term_by( 'name', $cat_name, 'category' );
if ( $cat )
return $cat->term_id;
return 0;
}
/**
* Retrieve the name of a category from its ID.
*
* @since 1.0.0
*
* @param int $cat_id Category ID
* @return string Category name, or an empty string if category doesn't exist.
*/
function get_cat_name( $cat_id ) {
$cat_id = (int) $cat_id;
$category = get_term( $cat_id, 'category' );
if ( ! $category || is_wp_error( $category ) )
return '';
return $category->name;
}
/**
* Check if a category is an ancestor of another category.
*
* You can use either an id or the category object for both parameters. If you
* use an integer the category will be retrieved.
*
* @since 2.1.0
*
* @param int|object $cat1 ID or object to check if this is the parent category.
* @param int|object $cat2 The child category.
* @return bool Whether $cat2 is child of $cat1
*/
function cat_is_ancestor_of( $cat1, $cat2 ) {
return term_is_ancestor_of( $cat1, $cat2, 'category' );
}
/**
* Sanitizes category data based on context.
*
* @since 2.3.0
*
* @param object|array $category Category data
* @param string $context Optional. Default is 'display'.
* @return object|array Same type as $category with sanitized data for safe use.
*/
function sanitize_category( $category, $context = 'display' ) {
return sanitize_term( $category, 'category', $context );
}
/**
* Sanitizes data in single category key field.
*
* @since 2.3.0
*
* @param string $field Category key to sanitize
* @param mixed $value Category value to sanitize
* @param int $cat_id Category ID
* @param string $context What filter to use, 'raw', 'display', etc.
* @return mixed Same type as $value after $value has been sanitized.
*/
function sanitize_category_field( $field, $value, $cat_id, $context ) {
return sanitize_term_field( $field, $value, $cat_id, 'category', $context );
}
/* Tags */
/**
* Retrieves all post tags.
*
* @since 2.3.0
* @see get_terms() For list of arguments to pass.
*
* @param string|array $args Tag arguments to use when retrieving tags.
* @return array List of tags.
*/
function get_tags( $args = '' ) {
$tags = get_terms( 'post_tag', $args );
if ( empty( $tags ) ) {
$return = array();
return $return;
}
/**
* Filter the array of term objects returned for the 'post_tag' taxonomy.
*
* @since 2.3.0
*
* @param array $tags Array of 'post_tag' term objects.
* @param array $args An array of arguments. @see get_terms()
*/
$tags = apply_filters( 'get_tags', $tags, $args );
return $tags;
}
/**
* Retrieve post tag by tag ID or tag object.
*
* If you pass the $tag parameter an object, which is assumed to be the tag row
* object retrieved the database. It will cache the tag data.
*
* If you pass $tag an integer of the tag ID, then that tag will
* be retrieved from the database, if it isn't already cached, and pass it back.
*
* If you look at get_term(), then both types will be passed through several
* filters and finally sanitized based on the $filter parameter value.
*
* @since 2.3.0
*
* @param int|object $tag
* @param string $output Optional. Constant OBJECT, ARRAY_A, or ARRAY_N
* @param string $filter Optional. Default is raw or no WordPress defined filter will applied.
* @return object|array|WP_Error|null Tag data in type defined by $output parameter. WP_Error if $tag is empty, null if it does not exist.
*/
function get_tag( $tag, $output = OBJECT, $filter = 'raw' ) {
return get_term( $tag, 'post_tag', $output, $filter );
}
/* Cache */
/**
* Remove the category cache data based on ID.
*
* @since 2.1.0
*
* @param int $id Category ID
*/
function clean_category_cache( $id ) {
clean_term_cache( $id, 'category' );
}
/**
* Update category structure to old pre 2.3 from new taxonomy structure.
*
* This function was added for the taxonomy support to update the new category
* structure with the old category one. This will maintain compatibility with
* plugins and themes which depend on the old key or property names.
*
* The parameter should only be passed a variable and not create the array or
* object inline to the parameter. The reason for this is that parameter is
* passed by reference and PHP will fail unless it has the variable.
*
* There is no return value, because everything is updated on the variable you
* pass to it. This is one of the features with using pass by reference in PHP.
*
* @since 2.3.0
* @access private
*
* @param array|object $category Category Row object or array
*/
function _make_cat_compat( &$category ) {
if ( is_object( $category ) && ! is_wp_error( $category ) ) {
$category->cat_ID = &$category->term_id;
$category->category_count = &$category->count;
$category->category_description = &$category->description;
$category->cat_name = &$category->name;
$category->category_nicename = &$category->slug;
$category->category_parent = &$category->parent;
} elseif ( is_array( $category ) && isset( $category['term_id'] ) ) {
$category['cat_ID'] = &$category['term_id'];
$category['category_count'] = &$category['count'];
$category['category_description'] = &$category['description'];
$category['cat_name'] = &$category['name'];
$category['category_nicename'] = &$category['slug'];
$category['category_parent'] = &$category['parent'];
}
}
/** Walker_CategoryDropdown class */
require_once( ABSPATH . WPINC . '/class-walker-category-dropdown.php' );

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<?php
/**
* Category API: Walker_CategoryDropdown class
*
* @package WordPress
* @subpackage Template
*/
/**
* Create HTML dropdown list of Categories.
*
* @package WordPress
* @since 2.1.0
* @uses Walker
*/
class Walker_CategoryDropdown extends Walker {
/**
* @see Walker::$tree_type
* @since 2.1.0
* @var string
*/
public $tree_type = 'category';
/**
* @see Walker::$db_fields
* @since 2.1.0
* @todo Decouple this
* @var array
*/
public $db_fields = array ('parent' => 'parent', 'id' => 'term_id');
/**
* Start the element output.
*
* @see Walker::start_el()
* @since 2.1.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $category Category data object.
* @param int $depth Depth of category. Used for padding.
* @param array $args Uses 'selected', 'show_count', and 'value_field' keys, if they exist.
* See {@see wp_dropdown_categories()}.
*/
public function start_el( &$output, $category, $depth = 0, $args = array(), $id = 0 ) {
$pad = str_repeat('&nbsp;', $depth * 3);
/** This filter is documented in wp-includes/category-template.php */
$cat_name = apply_filters( 'list_cats', $category->name, $category );
if ( isset( $args['value_field'] ) && isset( $category->{$args['value_field']} ) ) {
$value_field = $args['value_field'];
} else {
$value_field = 'term_id';
}
$output .= "\t<option class=\"level-$depth\" value=\"" . esc_attr( $category->{$value_field} ) . "\"";
// Type-juggling causes false matches, so we force everything to a string.
if ( (string) $category->{$value_field} === (string) $args['selected'] )
$output .= ' selected="selected"';
$output .= '>';
$output .= $pad.$cat_name;
if ( $args['show_count'] )
$output .= '&nbsp;&nbsp;('. number_format_i18n( $category->count ) .')';
$output .= "</option>\n";
}
}

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@ -0,0 +1,215 @@
<?php
/**
* Category API: Walker_Category class
*
* @package WordPress
* @subpackage Template
*/
/**
* Create HTML list of categories.
*
* @package WordPress
* @since 2.1.0
* @uses Walker
*/
class Walker_Category extends Walker {
/**
* What the class handles.
*
* @see Walker::$tree_type
* @since 2.1.0
* @var string
*/
public $tree_type = 'category';
/**
* Database fields to use.
*
* @see Walker::$db_fields
* @since 2.1.0
* @todo Decouple this
* @var array
*/
public $db_fields = array ('parent' => 'parent', 'id' => 'term_id');
/**
* Starts the list before the elements are added.
*
* @see Walker::start_lvl()
*
* @since 2.1.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of category. Used for tab indentation.
* @param array $args An array of arguments. Will only append content if style argument value is 'list'.
* @see wp_list_categories()
*/
public function start_lvl( &$output, $depth = 0, $args = array() ) {
if ( 'list' != $args['style'] )
return;
$indent = str_repeat("\t", $depth);
$output .= "$indent<ul class='children'>\n";
}
/**
* Ends the list of after the elements are added.
*
* @see Walker::end_lvl()
*
* @since 2.1.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of category. Used for tab indentation.
* @param array $args An array of arguments. Will only append content if style argument value is 'list'.
* @wsee wp_list_categories()
*/
public function end_lvl( &$output, $depth = 0, $args = array() ) {
if ( 'list' != $args['style'] )
return;
$indent = str_repeat("\t", $depth);
$output .= "$indent</ul>\n";
}
/**
* Start the element output.
*
* @see Walker::start_el()
*
* @since 2.1.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $category Category data object.
* @param int $depth Depth of category in reference to parents. Default 0.
* @param array $args An array of arguments. @see wp_list_categories()
* @param int $id ID of the current category.
*/
public function start_el( &$output, $category, $depth = 0, $args = array(), $id = 0 ) {
/** This filter is documented in wp-includes/category-template.php */
$cat_name = apply_filters(
'list_cats',
esc_attr( $category->name ),
$category
);
// Don't generate an element if the category name is empty.
if ( ! $cat_name ) {
return;
}
$link = '<a href="' . esc_url( get_term_link( $category ) ) . '" ';
if ( $args['use_desc_for_title'] && ! empty( $category->description ) ) {
/**
* Filter the category description for display.
*
* @since 1.2.0
*
* @param string $description Category description.
* @param object $category Category object.
*/
$link .= 'title="' . esc_attr( strip_tags( apply_filters( 'category_description', $category->description, $category ) ) ) . '"';
}
$link .= '>';
$link .= $cat_name . '</a>';
if ( ! empty( $args['feed_image'] ) || ! empty( $args['feed'] ) ) {
$link .= ' ';
if ( empty( $args['feed_image'] ) ) {
$link .= '(';
}
$link .= '<a href="' . esc_url( get_term_feed_link( $category->term_id, $category->taxonomy, $args['feed_type'] ) ) . '"';
if ( empty( $args['feed'] ) ) {
$alt = ' alt="' . sprintf(__( 'Feed for all posts filed under %s' ), $cat_name ) . '"';
} else {
$alt = ' alt="' . $args['feed'] . '"';
$name = $args['feed'];
$link .= empty( $args['title'] ) ? '' : $args['title'];
}
$link .= '>';
if ( empty( $args['feed_image'] ) ) {
$link .= $name;
} else {
$link .= "<img src='" . $args['feed_image'] . "'$alt" . ' />';
}
$link .= '</a>';
if ( empty( $args['feed_image'] ) ) {
$link .= ')';
}
}
if ( ! empty( $args['show_count'] ) ) {
$link .= ' (' . number_format_i18n( $category->count ) . ')';
}
if ( 'list' == $args['style'] ) {
$output .= "\t<li";
$css_classes = array(
'cat-item',
'cat-item-' . $category->term_id,
);
if ( ! empty( $args['current_category'] ) ) {
// 'current_category' can be an array, so we use `get_terms()`.
$_current_terms = get_terms( $category->taxonomy, array(
'include' => $args['current_category'],
'hide_empty' => false,
) );
foreach ( $_current_terms as $_current_term ) {
if ( $category->term_id == $_current_term->term_id ) {
$css_classes[] = 'current-cat';
} elseif ( $category->term_id == $_current_term->parent ) {
$css_classes[] = 'current-cat-parent';
}
}
}
/**
* Filter the list of CSS classes to include with each category in the list.
*
* @since 4.2.0
*
* @see wp_list_categories()
*
* @param array $css_classes An array of CSS classes to be applied to each list item.
* @param object $category Category data object.
* @param int $depth Depth of page, used for padding.
* @param array $args An array of wp_list_categories() arguments.
*/
$css_classes = implode( ' ', apply_filters( 'category_css_class', $css_classes, $category, $depth, $args ) );
$output .= ' class="' . $css_classes . '"';
$output .= ">$link\n";
} else {
$output .= "\t$link<br />\n";
}
}
/**
* Ends the element output, if needed.
*
* @see Walker::end_el()
*
* @since 2.1.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $page Not used.
* @param int $depth Depth of category. Not used.
* @param array $args An array of arguments. Only uses 'list' for whether should append to output. @see wp_list_categories()
*/
public function end_el( &$output, $page, $depth = 0, $args = array() ) {
if ( 'list' != $args['style'] )
return;
$output .= "</li>\n";
}
}

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@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.4-alpha-34109';
$wp_version = '4.4-alpha-34110';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.