/**
  * Delete function override: also delete references
  */
 static function del($ba_id)
 {
     // delete all references...
     CRM_Core_DAO::executeQuery("DELETE FROM civicrm_bank_account_reference WHERE ba_id='{$ba_id}';");
     // ...then delete the bank account object
     $printLabel = new CRM_Banking_DAO_BankAccount();
     $printLabel->id = $ba_id;
     $printLabel->delete();
 }
 /**
  * returns the list of fields that can be exported
  *
  * @access public
  * return array
  * @static
  */
 static function &export($prefix = false)
 {
     if (!self::$_export) {
         self::$_export = array();
         $fields = self::fields();
         foreach ($fields as $name => $field) {
             if (CRM_Utils_Array::value('export', $field)) {
                 if ($prefix) {
                     self::$_export['bank_account'] =& $fields[$name];
                 } else {
                     self::$_export[$name] =& $fields[$name];
                 }
             }
         }
     }
     return self::$_export;
 }