/**
  * Load a single RecurringDonation object,
  * by RecurringPaymentId Index(es)
  * @param integer $intRecurringPaymentId
  * @return RecurringDonation
  */
 public static function LoadByRecurringPaymentId($intRecurringPaymentId, $objOptionalClauses = null)
 {
     return RecurringDonation::QuerySingle(QQ::Equal(QQN::RecurringDonation()->RecurringPaymentId, $intRecurringPaymentId), $objOptionalClauses);
 }