Wordpress 3.5

[autoinstalls/wordpress.git] / wp-includes / category.php

diff --git a/wp-includes/category.php b/wp-includes/category.php
index 372c4c70cb770d68c70ab815a898afdd82484635..adac2475bf2569da38663b214195155a919866e7 100644 (file)
--- a/wp-includes/category.php
+++ b/wp-includes/category.php
@@ -15,7 +15,7 @@
  */
 function get_all_category_ids() {
        if ( ! $cat_ids = wp_cache_get( 'all_category_ids', 'category' ) ) {
-               $cat_ids = get_terms( 'category', 'fields=ids&get=all' );
+               $cat_ids = get_terms( 'category', array('fields' => 'ids', 'get' => 'all') );
                wp_cache_add( 'all_category_ids', $cat_ids, 'category' );
        }
 
@@ -36,13 +36,18 @@ function get_all_category_ids() {
  * @param string|array $args Optional. Change the defaults retrieving categories.
  * @return array List of categories.
  */
-function &get_categories( $args = '' ) {
-       $defaults = array( 'type' => 'category' );
+function get_categories( $args = '' ) {
+       $defaults = array( 'taxonomy' => 'category' );
        $args = wp_parse_args( $args, $defaults );
 
-       $taxonomy = apply_filters( 'get_categories_taxonomy', 'category', $args );
-       if ( 'link' == $args['type'] )
-               $taxonomy = 'link_category';
+       $taxonomy = apply_filters( 'get_categories_taxonomy', $args['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 )
@@ -73,7 +78,7 @@ function &get_categories( $args = '' ) {
  * @param string $filter Optional. Default is raw or no WordPress defined filter will applied.
  * @return mixed Category data in type defined by $output parameter.
  */
-function &get_category( $category, $output = OBJECT, $filter = 'raw' ) {
+function get_category( $category, $output = OBJECT, $filter = 'raw' ) {
        $category = get_term( $category, 'category', $output, $filter );
        if ( is_wp_error( $category ) )
                return $category;
@@ -98,7 +103,7 @@ function &get_category( $category, $output = OBJECT, $filter = 'raw' ) {
  * @since 2.1.0
  *
  * @param string $category_path URL containing category slugs.
- * @param bool $full_match Optional. Whether should match full path or not.
+ * @param bool $full_match Optional. Whether full path should be matched.
  * @param string $output Optional. Constant OBJECT, ARRAY_A, or ARRAY_N
  * @return null|object|array Null on failure. Type is based on $output value.
  */
@@ -113,7 +118,7 @@ function get_category_by_path( $category_path, $full_match = true, $output = OBJ
        foreach ( (array) $category_paths as $pathdir )
                $full_path .= ( $pathdir != '' ? '/' : '' ) . sanitize_title( $pathdir );
 
-       $categories = get_terms( 'category', "get=all&slug=$leaf_path" );
+       $categories = get_terms( 'category', array('get' => 'all', 'slug' => $leaf_path) );
 
        if ( empty( $categories ) )
                return null;
@@ -155,38 +160,37 @@ function get_category_by_slug( $slug  ) {
        return $category;
 }
 
-
 /**
  * Retrieve the ID of a category from its name.
  *
  * @since 1.0.0
  *
- * @param string $cat_name Optional. Default is 'General' and can be any category name.
+ * @param string $cat_name Category name.
  * @return int 0, if failure and ID of category on success.
  */
-function get_cat_ID( $cat_name='General' ) {
+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
+ * @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_category( $cat_id );
+       $category = get_category( $cat_id );
+       if ( ! $category || is_wp_error( $category ) )
+               return '';
        return $category->name;
 }
 
-
 /**
  * Check if a category is an ancestor of another category.
  *
@@ -200,20 +204,9 @@ function get_cat_name( $cat_id ) {
  * @return bool Whether $cat2 is child of $cat1
  */
 function cat_is_ancestor_of( $cat1, $cat2 ) {
-       if ( ! isset($cat1->term_id) )
-               $cat1 = &get_category( $cat1 );
-       if ( ! isset($cat2->parent) )
-               $cat2 = &get_category( $cat2 );
-
-       if ( empty($cat1->term_id) || empty($cat2->parent) )
-               return false;
-       if ( $cat2->parent == $cat1->term_id )
-               return true;
-
-       return cat_is_ancestor_of( $cat1, get_category( $cat2->parent ) );
+       return term_is_ancestor_of( $cat1, $cat2, 'category' );
 }
 
-
 /**
  * Sanitizes category data based on context.
  *
@@ -228,7 +221,6 @@ function sanitize_category( $category, $context = 'display' ) {
        return sanitize_term( $category, 'category', $context );
 }
 
-
 /**
  * Sanitizes data in single category key field.
  *
@@ -247,7 +239,6 @@ function sanitize_category_field( $field, $value, $cat_id, $context ) {
 
 /* Tags */
 
-
 /**
  * Retrieves all post tags.
  *
@@ -258,7 +249,7 @@ function sanitize_category_field( $field, $value, $cat_id, $context ) {
  * @param string|array $args Tag arguments to use when retrieving tags.
  * @return array List of tags.
  */
-function &get_tags( $args = '' ) {
+function get_tags( $args = '' ) {
        $tags = get_terms( 'post_tag', $args );
 
        if ( empty( $tags ) ) {
@@ -270,7 +261,6 @@ function &get_tags( $args = '' ) {
        return $tags;
 }
 
-
 /**
  * Retrieve post tag by tag ID or tag object.
  *
@@ -290,30 +280,12 @@ function &get_tags( $args = '' ) {
  * @param string $filter Optional. Default is raw or no WordPress defined filter will applied.
  * @return object|array Return type based on $output value.
  */
-function &get_tag( $tag, $output = OBJECT, $filter = 'raw' ) {
+function get_tag( $tag, $output = OBJECT, $filter = 'raw' ) {
        return get_term( $tag, 'post_tag', $output, $filter );
 }
 
-
 /* Cache */
 
-
-/**
- * Update the categories cache.
- *
- * This function does not appear to be used anymore or does not appear to be
- * needed. It might be a legacy function left over from when there was a need
- * for updating the category cache.
- *
- * @since 1.5.0
- *
- * @return bool Always return True
- */
-function update_category_cache() {
-       return true;
-}
-
-
 /**
  * Remove the category cache data based on ID.
  *
@@ -326,7 +298,6 @@ function clean_category_cache( $id ) {
        clean_term_cache( $id, 'category' );
 }
 
-
 /**
  * Update category structure to old pre 2.3 from new taxonomy structure.
  *
@@ -363,6 +334,3 @@ function _make_cat_compat( &$category ) {
                $category['category_parent'] = &$category['parent'];
        }
 }
-
-
-?>