public static function set_closed_meta()
 {
     $projects = self::get_all_projects();
     foreach ($projects as $a_project) {
         $project = new ID_Project($a_project->id);
         $post_id = $project->get_project_postid();
         $days_left = $project->days_left();
         $end_type = $project->get_end_type();
         if ($days_left <= 0 && $end_type == 'closed') {
             update_post_meta($post_id, 'ign_project_closed', true);
             do_action('idcf_project_closed', $post_id, $a_project->id);
         } else {
             update_post_meta($post_id, 'ign_project_closed', false);
         }
     }
 }