public function excerpt_filter($content)
 {
     $ignore_query = !in_the_loop() || !is_main_query();
     if (apply_filters('wpurp_recipe_content_loop_check', $ignore_query)) {
         return $content;
     }
     if (get_post_type() == 'recipe') {
         remove_filter('get_the_excerpt', array($this, 'excerpt_filter'), 10);
         $recipe = new WPURP_Recipe(get_post());
         $excerpt = $recipe->excerpt();
         $post_content = $recipe->post_content();
         $post_content = trim(preg_replace("/\\[wpurp-searchable-recipe\\][^\\[]*\\[\\/wpurp-searchable-recipe\\]/", "", $post_content));
         if ($post_content == '' && empty($excerpt)) {
             $content = $recipe->description();
         } else {
             if ($content == '') {
                 $content = get_the_excerpt();
             }
         }
         $content = apply_filters('wpurp_output_recipe_excerpt', $content, $recipe);
         add_filter('get_the_excerpt', array($this, 'excerpt_filter'), 10);
     }
     return $content;
 }