/**
  * delete a block from the database
  *
  * @param XoopsTplFile $tplfile object
  *
  * @return bool
  */
 public function deleteTpl(XoopsTplFile $tplfile)
 {
     $tpl_id = $tplfile->getVar('tpl_id');
     if (!$this->db2->deletePrefix('system_tplfile', array('tpl_id' => $tpl_id))) {
         return false;
     }
     $this->db2->deletePrefix('system_tplsource', array('tpl_id' => $tpl_id));
     return true;
 }