317 lines
8.1 KiB
PHP
317 lines
8.1 KiB
PHP
<?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 string|null Returns the category ID as a numeric string if the pairing exists, null if not.
|
|
*/
|
|
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 Returns null if the term does not exist.
|
|
* Returns an array of the term ID and the term taxonomy ID if the pairing exists.
|
|
* Returns 0 if term ID 0 is passed to the function.
|
|
*/
|
|
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 );
|
|
}
|