ru-se.com

taxonomy.php (7984B)

---

 <?php
 /**
  * WordPress Taxonomy Administration API.
  *
  * @package WordPress
  * @subpackage Administration
  */
 
 //
 // Category.
 //
 
 /**
  * Check whether a category exists.
  *
  * @since 2.0.0
  *
  * @see term_exists()
  *
  * @param int|string $cat_name Category name.
  * @param int        $parent   Optional. ID of parent term.
  * @return mixed
  */
 function category_exists( $cat_name, $parent = null ) {
 	$id = term_exists( $cat_name, 'category', $parent );
 	if ( is_array( $id ) ) {
 		$id = $id['term_id'];
 	}
 	return $id;
 }
 
 /**
  * Get category object for given ID and 'edit' filter context.
  *
  * @since 2.0.0
  *
  * @param int $id
  * @return object
  */
 function get_category_to_edit( $id ) {
 	$category = get_term( $id, 'category', OBJECT, 'edit' );
 	_make_cat_compat( $category );
 	return $category;
 }
 
 /**
  * Add a new category to the database if it does not already exist.
  *
  * @since 2.0.0
  *
  * @param int|string $cat_name
  * @param int        $parent
  * @return int|WP_Error
  */
 function wp_create_category( $cat_name, $parent = 0 ) {
 	$id = category_exists( $cat_name, $parent );
 	if ( $id ) {
 		return $id;
 	}
 
 	return wp_insert_category(
 		array(
 			'cat_name'        => $cat_name,
 			'category_parent' => $parent,
 		)
 	);
 }
 
 /**
  * Create categories for the given post.
  *
  * @since 2.0.0
  *
  * @param string[] $categories Array of category names to create.
  * @param int      $post_id    Optional. The post ID. Default empty.
  * @return int[] Array of IDs of categories assigned to the given post.
  */
 function wp_create_categories( $categories, $post_id = '' ) {
 	$cat_ids = array();
 	foreach ( $categories as $category ) {
 		$id = category_exists( $category );
 		if ( $id ) {
 			$cat_ids[] = $id;
 		} else {
 			$id = wp_create_category( $category );
 			if ( $id ) {
 				$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
  * @since 2.5.0 $wp_error parameter was added.
  * @since 3.0.0 The 'taxonomy' argument was added.
  *
  * @param array $catarr {
  *     Array of arguments for inserting a new category.
  *
  *     @type int        $cat_ID               Category ID. A non-zero value updates an existing category.
  *                                            Default 0.
  *     @type string     $taxonomy             Taxonomy slug. Default 'category'.
  *     @type string     $cat_name             Category name. Default empty.
  *     @type string     $category_description Category description. Default empty.
  *     @type string     $category_nicename    Category nice (display) name. Default empty.
  *     @type int|string $category_parent      Category parent ID. Default empty.
  * }
  * @param bool  $wp_error Optional. Default false.
  * @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|false 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.
 //
 
 /**
  * Check whether a post tag with a given name exists.
  *
  * @since 2.3.0
  *
  * @param int|string $tag_name
  * @return mixed
  */
 function tag_exists( $tag_name ) {
 	return term_exists( $tag_name, 'post_tag' );
 }
 
 /**
  * Add a new tag to the database if it does not already exist.
  *
  * @since 2.3.0
  *
  * @param int|string $tag_name
  * @return array|WP_Error
  */
 function wp_create_tag( $tag_name ) {
 	return wp_create_term( $tag_name, 'post_tag' );
 }
 
 /**
  * Get comma-separated list of tags available to edit.
  *
  * @since 2.3.0
  *
  * @param int    $post_id
  * @param string $taxonomy Optional. The taxonomy for which to retrieve terms. Default 'post_tag'.
  * @return string|false|WP_Error
  */
 function get_tags_to_edit( $post_id, $taxonomy = 'post_tag' ) {
 	return get_terms_to_edit( $post_id, $taxonomy );
 }
 
 /**
  * Get comma-separated list of terms available to edit for the given post ID.
  *
  * @since 2.8.0
  *
  * @param int    $post_id
  * @param string $taxonomy Optional. The taxonomy for which to retrieve terms. Default 'post_tag'.
  * @return string|false|WP_Error
  */
 function get_terms_to_edit( $post_id, $taxonomy = 'post_tag' ) {
 	$post_id = (int) $post_id;
 	if ( ! $post_id ) {
 		return false;
 	}
 
 	$terms = get_object_term_cache( $post_id, $taxonomy );
 	if ( false === $terms ) {
 		$terms = wp_get_object_terms( $post_id, $taxonomy );
 		wp_cache_add( $post_id, wp_list_pluck( $terms, 'term_id' ), $taxonomy . '_relationships' );
 	}
 
 	if ( ! $terms ) {
 		return false;
 	}
 	if ( is_wp_error( $terms ) ) {
 		return $terms;
 	}
 	$term_names = array();
 	foreach ( $terms as $term ) {
 		$term_names[] = $term->name;
 	}
 
 	$terms_to_edit = esc_attr( implode( ',', $term_names ) );
 
 	/**
 	 * Filters the comma-separated list of terms available to edit.
 	 *
 	 * @since 2.8.0
 	 *
 	 * @see get_terms_to_edit()
 	 *
 	 * @param string $terms_to_edit A comma-separated list of term names.
 	 * @param string $taxonomy      The taxonomy name for which to retrieve terms.
 	 */
 	$terms_to_edit = apply_filters( 'terms_to_edit', $terms_to_edit, $taxonomy );
 
 	return $terms_to_edit;
 }
 
 /**
  * Add a new term to the database if it does not already exist.
  *
  * @since 2.8.0
  *
  * @param string $tag_name The term name.
  * @param string $taxonomy Optional. The taxonomy within which to create the term. Default 'post_tag'.
  * @return array|WP_Error
  */
 function wp_create_term( $tag_name, $taxonomy = 'post_tag' ) {
 	$id = term_exists( $tag_name, $taxonomy );
 	if ( $id ) {
 		return $id;
 	}
 
 	return wp_insert_term( $tag_name, $taxonomy );
 }