get_primary_term_taxonomies(); foreach ( $taxonomies as $taxonomy ) { $content .= $this->primary_term_field( $taxonomy->name ); $content .= wp_nonce_field( 'save-primary-term', WPSEO_Meta::$form_prefix . 'primary_' . $taxonomy->name . '_nonce', false, false ); } return $content; } /** * Generates the HTML for a hidden field for a primary taxonomy. * * @param string $taxonomy_name The taxonomy's slug. * * @return string The HTML for a hidden primary taxonomy field. */ protected function primary_term_field( $taxonomy_name ) { return sprintf( '', esc_attr( $this->generate_field_id( $taxonomy_name ) ), esc_attr( $this->generate_field_name( $taxonomy_name ) ), esc_attr( $this->get_primary_term( $taxonomy_name ) ) ); } /** * Generates an id for a primary taxonomy's hidden field. * * @param string $taxonomy_name The taxonomy's slug. * * @return string The field id. */ protected function generate_field_id( $taxonomy_name ) { return 'yoast-wpseo-primary-' . $taxonomy_name; } /** * Generates a name for a primary taxonomy's hidden field. * * @param string $taxonomy_name The taxonomy's slug. * * @return string The field id. */ protected function generate_field_name( $taxonomy_name ) { return WPSEO_Meta::$form_prefix . 'primary_' . $taxonomy_name . '_term'; } /** * Adds primary term templates. */ public function wp_footer() { $taxonomies = $this->get_primary_term_taxonomies(); if ( ! empty( $taxonomies ) ) { $this->include_js_templates(); } } /** * Enqueues all the assets needed for the primary term interface. * * @return void */ public function enqueue_assets() { global $pagenow; if ( ! WPSEO_Metabox::is_post_edit( $pagenow ) ) { return; } $taxonomies = $this->get_primary_term_taxonomies(); // Only enqueue if there are taxonomies that need a primary term. if ( empty( $taxonomies ) ) { return; } $asset_manager = new WPSEO_Admin_Asset_Manager(); $asset_manager->enqueue_style( 'primary-category' ); $mapped_taxonomies = $this->get_mapped_taxonomies_for_js( $taxonomies ); $data = [ 'taxonomies' => $mapped_taxonomies, ]; $asset_manager->localize_script( 'post-edit', 'wpseoPrimaryCategoryL10n', $data ); $asset_manager->localize_script( 'post-edit-classic', 'wpseoPrimaryCategoryL10n', $data ); } /** * Gets the id of the primary term. * * @param string $taxonomy_name Taxonomy name for the term. * * @return int primary term id */ protected function get_primary_term( $taxonomy_name ) { $primary_term = new WPSEO_Primary_Term( $taxonomy_name, $this->get_current_id() ); return $primary_term->get_primary_term(); } /** * Returns all the taxonomies for which the primary term selection is enabled. * * @param int|null $post_id Default current post ID. * @return array */ protected function get_primary_term_taxonomies( $post_id = null ) { if ( $post_id === null ) { $post_id = $this->get_current_id(); } $taxonomies = wp_cache_get( 'primary_term_taxonomies_' . $post_id, 'wpseo' ); if ( $taxonomies !== false ) { return $taxonomies; } $taxonomies = $this->generate_primary_term_taxonomies( $post_id ); wp_cache_set( 'primary_term_taxonomies_' . $post_id, $taxonomies, 'wpseo' ); return $taxonomies; } /** * Includes templates file. */ protected function include_js_templates() { include_once WPSEO_PATH . 'admin/views/js-templates-primary-term.php'; } /** * Generates the primary term taxonomies. * * @param int $post_id ID of the post. * * @return array */ protected function generate_primary_term_taxonomies( $post_id ) { $post_type = get_post_type( $post_id ); $all_taxonomies = get_object_taxonomies( $post_type, 'objects' ); $all_taxonomies = array_filter( $all_taxonomies, [ $this, 'filter_hierarchical_taxonomies' ] ); /** * Filters which taxonomies for which the user can choose the primary term. * * @api array $taxonomies An array of taxonomy objects that are primary_term enabled. * * @param string $post_type The post type for which to filter the taxonomies. * @param array $all_taxonomies All taxonomies for this post types, even ones that don't have primary term * enabled. */ $taxonomies = (array) apply_filters( 'wpseo_primary_term_taxonomies', $all_taxonomies, $post_type, $all_taxonomies ); return $taxonomies; } /** * Creates a map of taxonomies for localization. * * @param array $taxonomies The taxononmies that should be mapped. * * @return array The mapped taxonomies. */ protected function get_mapped_taxonomies_for_js( $taxonomies ) { return array_map( [ $this, 'map_taxonomies_for_js' ], $taxonomies ); } /** * Returns an array suitable for use in the javascript. * * @param stdClass $taxonomy The taxonomy to map. * * @return array The mapped taxonomy. */ private function map_taxonomies_for_js( $taxonomy ) { $primary_term = $this->get_primary_term( $taxonomy->name ); if ( empty( $primary_term ) ) { $primary_term = ''; } $terms = get_terms( [ 'taxonomy' => $taxonomy->name, 'update_term_meta_cache' => false, 'fields' => 'id=>name', ] ); $mapped_terms_for_js = []; foreach ( $terms as $id => $name ) { $mapped_terms_for_js[] = [ 'id' => $id, 'name' => $name, ]; } return [ 'title' => $taxonomy->labels->singular_name, 'name' => $taxonomy->name, 'primary' => $primary_term, 'singularLabel' => $taxonomy->labels->singular_name, 'fieldId' => $this->generate_field_id( $taxonomy->name ), 'restBase' => ( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name, 'terms' => $mapped_terms_for_js, ]; } /** * Returns whether or not a taxonomy is hierarchical. * * @param stdClass $taxonomy Taxonomy object. * * @return bool */ private function filter_hierarchical_taxonomies( $taxonomy ) { return (bool) $taxonomy->hierarchical; } }