public function addConvertToDonationTransaction(ConnectionInterface $con, Lender $lender, Money $amount)
 {
     $this->assertAmount($amount);
     $transaction = new Transaction();
     $transaction->setUserId($lender->getId())->setAmount($amount->multiply(-1))->setDescription('Donation to Zidisha')->setTransactionDate(new \DateTime())->setType(Transaction::DONATION)->setSubType(Transaction::DONATE_BY_ADMIN);
     $transaction->save($con);
     $transactionDonation = new Transaction();
     $transactionDonation->setUserId(Setting::get('site.adminId'))->setAmount($amount)->setDescription('Donation from lender')->setTransactionDate(new \DateTime())->setType(Transaction::DONATION)->setSubType(Transaction::DONATE_BY_ADMIN);
     $transactionDonation->save($con);
 }