mpty( $t['args'] ) ) { $t['args'] = array(); } if ( empty( $t['template'] ) ) { $t['template'] = $args['template']; } if ( empty( $t['term_template'] ) ) { $t['term_template'] = $args['term_template']; } $terms = get_object_term_cache( $post->ID, $taxonomy ); if ( false === $terms ) { $terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] ); } $links = array(); foreach ( $terms as $term ) { $links[] = wp_sprintf( $t['term_template'], esc_attr( get_term_link( $term ) ), $term->name ); } if ( $links ) { $taxonomies[$taxonomy] = wp_sprintf( $t['template'], $t['label'], $links, $terms ); } } return $taxonomies; } /** * Retrieve all taxonomies of a post with just the names. * * @since 2.5.0 * * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post. * @return array An array of all taxonomy names for the given post. */ function get_post_taxonomies( $post = 0 ) { $post = get_post( $post ); return get_object_taxonomies($post); } /** * Determine if the given object is associated with any of the given terms. * * The given terms are checked against the object's terms' term_ids, names and slugs. * Terms given as integers will only be checked against the object's terms' term_ids. * If no terms are given, determines if object is associated with any terms in the given taxonomy. * * @since 2.7.0 * * @param int $object_id ID of the object (post ID, link ID, ...). * @param string $taxonomy Single taxonomy name. * @param int|string|array $terms Optional. Term term_id, name, slug or array of said. Default null. * @return bool|WP_Error WP_Error on input error. */ function is_object_in_term( $object_id, $taxonomy, $terms = null ) { if ( !$object_id = (int) $object_id ) return new WP_Error( 'invalid_object', __( 'Invalid object ID.' ) ); $object_terms = get_object_term_cache( $object_id, $taxonomy ); if ( false === $object_terms ) { $object_terms = wp_get_object_terms( $object_id, $taxonomy, array( 'update_term_meta_cache' => false ) ); if ( is_wp_error( $object_terms ) ) { return $object_terms; } wp_cache_set( $object_id, wp_list_pluck( $object_terms, 'term_id' ), "{$taxonomy}_relationships" ); } if ( is_wp_error( $object_terms ) ) return $object_terms; if ( empty( $object_terms ) ) return false; if ( empty( $terms ) ) return ( !empty( $object_terms ) ); $terms = (array) $terms; if ( $ints = array_filter( $terms, 'is_int' ) ) $strs = array_diff( $terms, $ints ); else $strs =& $terms; foreach ( $object_terms as $object_term ) { // If term is an int, check against term_ids only. if ( $ints && in_array( $object_term->term_id, $ints ) ) { return true; } if ( $strs ) { // Only check numeric strings against term_id, to avoid false matches due to type juggling. $numeric_strs = array_map( 'intval', array_filter( $strs, 'is_numeric' ) ); if ( in_array( $object_term->term_id, $numeric_strs, true ) ) { return true; } if ( in_array( $object_term->name, $strs ) ) return true; if ( in_array( $object_term->slug, $strs ) ) return true; } } return false; } /** * Determine if the given object type is associated with the given taxonomy. * * @since 3.0.0 * * @param string $object_type Object type string. * @param string $taxonomy Single taxonomy name. * @return bool True if object is associated with the taxonomy, otherwise false. */ function is_object_in_taxonomy( $object_type, $taxonomy ) { $taxonomies = get_object_taxonomies( $object_type ); if ( empty( $taxonomies ) ) { return false; } return in_array( $taxonomy, $taxonomies ); } /** * Get an array of ancestor IDs for a given object. * * @since 3.1.0 * @since 4.1.0 Introduced the `$resource_type` argument. * * @param int $object_id Optional. The ID of the object. Default 0. * @param string $object_type Optional. The type of object for which we'll be retrieving * ancestors. Accepts a post type or a taxonomy name. Default empty. * @param string $resource_type Optional. Type of resource $object_type is. Accepts 'post_type' * or 'taxonomy'. Default empty. * @return array An array of ancestors from lowest to highest in the hierarchy. */ function get_ancestors( $object_id = 0, $object_type = '', $resource_type = '' ) { $object_id = (int) $object_id; $ancestors = array(); if ( empty( $object_id ) ) { /** This filter is documented in wp-includes/taxonomy.php */ return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type ); } if ( ! $resource_type ) { if ( is_taxonomy_hierarchical( $object_type ) ) { $resource_type = 'taxonomy'; } elseif ( post_type_exists( $object_type ) ) { $resource_type = 'post_type'; } } if ( 'taxonomy' === $resource_type ) { $term = get_term($object_id, $object_type); while ( ! is_wp_error($term) && ! empty( $term->parent ) && ! in_array( $term->parent, $ancestors ) ) { $ancestors[] = (int) $term->parent; $term = get_term($term->parent, $object_type); } } elseif ( 'post_type' === $resource_type ) { $ancestors = get_post_ancestors($object_id); } /** * Filters a given object's ancestors. * * @since 3.1.0 * @since 4.1.1 Introduced the `$resource_type` parameter. * * @param array $ancestors An array of object ancestors. * @param int $object_id Object ID. * @param string $object_type Type of object. * @param string $resource_type Type of resource $object_type is. */ return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type ); } /** * Returns the term's parent's term_ID. * * @since 3.1.0 * * @param int $term_id Term ID. * @param string $taxonomy Taxonomy name. * @return int|false False on error. */ function wp_get_term_taxonomy_parent_id( $term_id, $taxonomy ) { $term = get_term( $term_id, $taxonomy ); if ( ! $term || is_wp_error( $term ) ) { return false; } return (int) $term->parent; } /** * Checks the given subset of the term hierarchy for hierarchy loops. * Prevents loops from forming and breaks those that it finds. * * Attached to the {@see 'wp_update_term_parent'} filter. * * @since 3.1.0 * * @param int $parent `term_id` of the parent for the term we're checking. * @param int $term_id The term we're checking. * @param string $taxonomy The taxonomy of the term we're checking. * * @return int The new parent for the term. */ function wp_check_term_hierarchy_for_loops( $parent, $term_id, $taxonomy ) { // Nothing fancy here - bail if ( !$parent ) return 0; // Can't be its own parent. if ( $parent == $term_id ) return 0; // Now look for larger loops. if ( !$loop = wp_find_hierarchy_loop( 'wp_get_term_taxonomy_parent_id', $term_id, $parent, array( $taxonomy ) ) ) return $parent; // No loop // Setting $parent to the given value causes a loop. if ( isset( $loop[$term_id] ) ) return 0; // There's a loop, but it doesn't contain $term_id. Break the loop. foreach ( array_keys( $loop ) as $loop_member ) wp_update_term( $loop_member, $taxonomy, array( 'parent' => 0 ) ); return $parent; }