public static function render_page()
 {
     self::init_fields();
     DLN_Form_Functions::load_frontend_assets();
     DLN_Form_Functions::form_get_template('submit-item.php', array('fields' => self::$fields, 'fashion_id' => self::$fashion_id));
 }
 public static function output()
 {
     DLN_Form_Functions::load_frontend_assets();
     $keys = array_keys(self::$steps);
     if (!empty(self::$errors) || isset($keys[self::$step]) && is_callable(self::$steps[$keys[self::$step]]['view'])) {
         self::show_errors();
         call_user_func(self::$steps[$keys[self::$step]]['view']);
     }
 }