WordPress/wp-admin/includes/taxonomy.php

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<?php
/**
* WordPress Taxonomy Administration API.
*
* @package WordPress
* @subpackage Administration
*/
//
// Category
//
/**
* {@internal Missing Short Description}}
*
* @since 2.0.0
*
* @param unknown_type $cat_name
* @return unknown
*/
function category_exists($cat_name, $parent = 0) {
$id = term_exists($cat_name, 'category', $parent);
if ( is_array($id) )
$id = $id['term_id'];
return $id;
}
/**
* {@internal Missing Short Description}}
*
* @since 2.0.0
*
* @param unknown_type $id
* @return unknown
*/
function get_category_to_edit( $id ) {
$category = get_term( $id, 'category', OBJECT, 'edit' );
_make_cat_compat( $category );
return $category;
}
/**
* {@internal Missing Short Description}}
*
* @since 2.0.0
*
* @param unknown_type $cat_name
* @param unknown_type $parent
* @return unknown
*/
function wp_create_category( $cat_name, $parent = 0 ) {
if ( $id = category_exists($cat_name, $parent) )
return $id;
return wp_insert_category( array('cat_name' => $cat_name, 'category_parent' => $parent) );
}
/**
* {@internal Missing Short Description}}
*
* @since 2.0.0
*
* @param unknown_type $categories
* @param unknown_type $post_id
* @return unknown
*/
function wp_create_categories($categories, $post_id = '') {
$cat_ids = array ();
foreach ($categories as $category) {
if ($id = category_exists($category))
$cat_ids[] = $id;
else
if ($id = wp_create_category($category))
$cat_ids[] = $id;
}
if ( $post_id )
wp_set_post_categories($post_id, $cat_ids);
return $cat_ids;
}
/**
* Updates an existing Category or creates a new Category.
*
* @since 2.0.0
*
* @param mixed $catarr See defaults below. Set 'cat_ID' to a non-zero value to update an existing category. The 'taxonomy' key was added in 3.0.0.
* @param bool $wp_error Optional, since 2.5.0. Set this to true if the caller handles WP_Error return values.
* @return int|object The ID number of the new or updated Category on success. Zero or a WP_Error on failure, depending on param $wp_error.
*/
function wp_insert_category( $catarr, $wp_error = false ) {
$cat_defaults = array( 'cat_ID' => 0, 'taxonomy' => 'category', 'cat_name' => '', 'category_description' => '', 'category_nicename' => '', 'category_parent' => '' );
$catarr = wp_parse_args( $catarr, $cat_defaults );
if ( trim( $catarr['cat_name'] ) == '' ) {
if ( ! $wp_error ) {
return 0;
} else {
return new WP_Error( 'cat_name', __( 'You did not enter a category name.' ) );
}
}
$catarr['cat_ID'] = (int) $catarr['cat_ID'];
// Are we updating or creating?
$update = ! empty ( $catarr['cat_ID'] );
$name = $catarr['cat_name'];
$description = $catarr['category_description'];
$slug = $catarr['category_nicename'];
$parent = (int) $catarr['category_parent'];
if ( $parent < 0 ) {
$parent = 0;
}
if ( empty( $parent )
|| ! term_exists( $parent, $catarr['taxonomy'] )
|| ( $catarr['cat_ID'] && term_is_ancestor_of( $catarr['cat_ID'], $parent, $catarr['taxonomy'] ) ) ) {
$parent = 0;
}
$args = compact('name', 'slug', 'parent', 'description');
if ( $update ) {
$catarr['cat_ID'] = wp_update_term( $catarr['cat_ID'], $catarr['taxonomy'], $args );
} else {
$catarr['cat_ID'] = wp_insert_term( $catarr['cat_name'], $catarr['taxonomy'], $args );
}
if ( is_wp_error( $catarr['cat_ID'] ) ) {
if ( $wp_error ) {
return $catarr['cat_ID'];
} else {
return 0;
}
}
return $catarr['cat_ID']['term_id'];
}
/**
* Aliases wp_insert_category() with minimal args.
*
* If you want to update only some fields of an existing category, call this
* function with only the new values set inside $catarr.
*
* @since 2.0.0
*
* @param array $catarr The 'cat_ID' value is required. All other keys are optional.
* @return int|bool The ID number of the new or updated Category on success. Zero or FALSE on failure.
*/
function wp_update_category($catarr) {
$cat_ID = (int) $catarr['cat_ID'];
if ( isset($catarr['category_parent']) && ($cat_ID == $catarr['category_parent']) )
return false;
// First, get all of the original fields
$category = get_term( $cat_ID, 'category', ARRAY_A );
_make_cat_compat( $category );
// Escape data pulled from DB.
$category = wp_slash($category);
// Merge old and new fields with new fields overwriting old ones.
$catarr = array_merge($category, $catarr);
return wp_insert_category($catarr);
}
//
// Tags
//
/**
* {@internal Missing Short Description}}
*
* @since 2.3.0
*
* @param unknown_type $tag_name
* @return unknown
*/
function tag_exists($tag_name) {
return term_exists($tag_name, 'post_tag');
}
/**
* {@internal Missing Short Description}}
*
* @since 2.3.0
*
* @param unknown_type $tag_name
* @return unknown
*/
function wp_create_tag($tag_name) {
return wp_create_term( $tag_name, 'post_tag');
}
/**
* {@internal Missing Short Description}}
*
* @since 2.3.0
*
* @param unknown_type $post_id
* @return unknown
*/
function get_tags_to_edit( $post_id, $taxonomy = 'post_tag' ) {
return get_terms_to_edit( $post_id, $taxonomy);
}
/**
* {@internal Missing Short Description}}
*
* @since 2.8.0
*
* @param unknown_type $post_id
* @return unknown
*/
function get_terms_to_edit( $post_id, $taxonomy = 'post_tag' ) {
$post_id = (int) $post_id;
if ( !$post_id )
return false;
$tags = wp_get_post_terms($post_id, $taxonomy, array());
if ( !$tags )
return false;
if ( is_wp_error($tags) )
return $tags;
foreach ( $tags as $tag )
$tag_names[] = $tag->name;
$tags_to_edit = join( ',', $tag_names );
$tags_to_edit = esc_attr( $tags_to_edit );
/**
* Filter the comma-separated list of terms available to edit.
*
* @since 2.8.0
*
* @see get_terms_to_edit()
*
* @param array $tags_to_edit An array of terms.
* @param string $taxonomy The taxonomy for which to retrieve terms. Default 'post_tag'.
*/
$tags_to_edit = apply_filters( 'terms_to_edit', $tags_to_edit, $taxonomy );
return $tags_to_edit;
}
/**
* {@internal Missing Short Description}}
*
* @since 2.8.0
*
* @param unknown_type $tag_name
* @return unknown
*/
function wp_create_term($tag_name, $taxonomy = 'post_tag') {
if ( $id = term_exists($tag_name, $taxonomy) )
return $id;
return wp_insert_term($tag_name, $taxonomy);
}