public function addRedeemGiftCardTransaction(ConnectionInterface $con, GiftCard $giftCard)
 {
     $this->assertAmount($giftCard->getCardAmount());
     $giftTransaction = new Transaction();
     $giftTransaction->setUserId($giftCard->getRecipientId())->setAmount($giftCard->getCardAmount())->setDescription('Gift Card Redemption')->setTransactionDate(new \DateTime())->setType(Transaction::GIFT_REDEEM);
     $giftTransaction->save($con);
 }