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<title>[34110] trunk/src/wp-includes: Move `Walker_Category` and `Walker_CategoryDropdown` into their own files via `svn cp`.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/34110">34110</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/34110","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>wonderboymusic</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2015-09-14 03:09:37 +0000 (Mon, 14 Sep 2015)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>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 <a href="https://core.trac.wordpress.org/ticket/33413">#33413</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludescategorytemplatephp">trunk/src/wp-includes/category-template.php</a></li>
<li><a href="#trunksrcwpincludescategoryphp">trunk/src/wp-includes/category.php</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunksrcwpincludescategoryfunctionsphp">trunk/src/wp-includes/category-functions.php</a></li>
<li><a href="#trunksrcwpincludesclasswalkercategorydropdownphp">trunk/src/wp-includes/class-walker-category-dropdown.php</a></li>
<li><a href="#trunksrcwpincludesclasswalkercategoryphp">trunk/src/wp-includes/class-walker-category.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludescategoryfunctionsphpfromrev34109trunksrcwpincludescategoryphp"></a>
<div class="copfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Copied: trunk/src/wp-includes/category-functions.php (from rev 34109, trunk/src/wp-includes/category.php)</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/category-functions.php (rev 0)
+++ trunk/src/wp-includes/category-functions.php 2015-09-14 03:09:37 UTC (rev 34110)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,340 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?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'];
+ }
+}
</ins></span></pre></div>
<a id="trunksrcwpincludescategorytemplatephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/category-template.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/category-template.php 2015-09-14 02:58:40 UTC (rev 34109)
+++ trunk/src/wp-includes/category-template.php 2015-09-14 03:09:37 UTC (rev 34110)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -972,274 +972,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> return call_user_func_array( array( $walker, 'walk' ), $args );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/**
- * Create HTML list of categories.
- *
- * @package WordPress
- * @since 2.1.0
- * @uses Walker
- */
-class Walker_Category extends Walker {
- /**
- * What the class handles.
- *
- * @see Walker::$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(' ', $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 .= ' ('. number_format_i18n( $category->count ) .')';
- $output .= "</option>\n";
- }
-}
-
</del><span class="cx" style="display: block; padding: 0 10px"> //
</span><span class="cx" style="display: block; padding: 0 10px"> // Tags
</span><span class="cx" style="display: block; padding: 0 10px"> //
</span></span></pre></div>
<a id="trunksrcwpincludescategoryphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/category.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/category.php 2015-09-14 02:58:40 UTC (rev 34109)
+++ trunk/src/wp-includes/category.php 2015-09-14 03:09:37 UTC (rev 34110)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -5,336 +5,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @package WordPress
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/**
- * 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 );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/** Core category functionality */
+require_once( ABSPATH . WPINC . '/category-functions.php' );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $taxonomy = $args['taxonomy'];
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/** Walker_Category class */
+require_once( ABSPATH . WPINC . '/class-walker-category.php' );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- /**
- * 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'];
- }
-}
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/** Walker_CategoryDropdown class */
+require_once( ABSPATH . WPINC . '/class-walker-category-dropdown.php' );
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of file
</span></span></pre></div>
<a id="trunksrcwpincludesclasswalkercategorydropdownphpfromrev34109trunksrcwpincludescategorytemplatephp"></a>
<div class="copfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Copied: trunk/src/wp-includes/class-walker-category-dropdown.php (from rev 34109, trunk/src/wp-includes/category-template.php)</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-walker-category-dropdown.php (rev 0)
+++ trunk/src/wp-includes/class-walker-category-dropdown.php 2015-09-14 03:09:37 UTC (rev 34110)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,67 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?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(' ', $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 .= ' ('. number_format_i18n( $category->count ) .')';
+ $output .= "</option>\n";
+ }
+}
</ins></span></pre></div>
<a id="trunksrcwpincludesclasswalkercategoryphpfromrev34109trunksrcwpincludescategorytemplatephp"></a>
<div class="copfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Copied: trunk/src/wp-includes/class-walker-category.php (from rev 34109, trunk/src/wp-includes/category-template.php)</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-walker-category.php (rev 0)
+++ trunk/src/wp-includes/class-walker-category.php 2015-09-14 03:09:37 UTC (rev 34110)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,215 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+/**
+ * Category API: Walker_Category class
+ *
+ * @package WordPress
+ * @subpackage Template
+ */
+
+/**
+ * Create HTML list of categories.
+ *
+ * @package WordPress
+ * @since 2.1.0
+ * @uses Walker
+ */
+class Walker_Category extends Walker {
+ /**
+ * What the class handles.
+ *
+ * @see Walker::$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";
+ }
+
+}
</ins></span></pre>
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