public function createTransaction($data)
{
$transaction = new Btransaction();
$transaction->amount = isset($data['amount']) ? (int) $data['amount'] : 100;
$transaction->id_user = Yii::app()->user->id;
$transaction->id_operation = 1;
$transaction->time_start = time();
if ($transaction->save()) {
return $transaction;
} else {
print_r($transaction->getErrors());
die;
throw new CHttpException(404, 'Ошибка при создании транзакции');
}
}