true, 'single' => true, 'type' => 'string', "default" => "", // 'auth_callback' => function () { // return current_user_can( 'edit_posts' ); // }, 'auth_callback' => '__return_true', ); $meta_fields['gutenify_custom_css_data'] = array( 'show_in_rest' => true, 'single' => true, 'type' => 'string', 'auth_callback' => function () { return current_user_can( 'edit_posts' ); }, ); foreach ( $post_types as $post_type ) { if ( ! empty( $meta_fields ) ) { foreach ( $meta_fields as $meta_key => $meta_args ) { register_post_meta( $post_type, $meta_key, $meta_args ); } } } } } add_action( 'init', 'gutenify_register_meta_fields' ); /** * Add block category * * @param array $categories Block categories. * @return array */ function gutenify_block_categories( $categories ) { // error_log( print_r( $categories, true )); return array_merge( array( array( 'slug' => 'gutenify', 'title' => __( 'Gutenify Blocks', 'gutenify' ), ), ), $categories ); } add_filter( 'block_categories_all', 'gutenify_block_categories', 100, 2 );