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<?php |
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namespace Nkey\Caribu\Orm; |
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use PDOException; |
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/** |
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* Transaction related functionality |
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* |
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* This class is part of Caribu package |
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* |
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* @author Maik Greubel <[email protected]> |
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*/ |
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trait OrmTransaction |
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{ |
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/** |
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* Include the connection related functionality |
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*/ |
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use OrmConnection; |
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/** |
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* The stack of open transactions |
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* |
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* @var int |
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*/ |
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private $transactionStack = 0; |
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/** |
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* Begin a new transaction |
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* |
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* @return \PDO |
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*/ |
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public function startTX() |
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{ |
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$connection = $this->getConnection(); |
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if (!$connection->inTransaction()) { |
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$connection->beginTransaction(); |
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} |
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$this->transactionStack++; |
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return $connection; |
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} |
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/** |
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* Try to commit the complete transaction stack |
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* |
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* @throws OrmException |
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* @throws PDOException |
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*/ |
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public function commitTX() |
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{ |
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$connection = $this->getConnection(); |
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if (!$connection->inTransaction()) { |
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throw new OrmException("Transaction is not open"); |
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} |
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$this->transactionStack--; |
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if ($this->transactionStack === 0) { |
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$connection->commit(); |
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} |
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} |
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/** |
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* Rollback the complete stack |
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* |
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* @return OrmException either previous exception or new occured during rollback containing previous |
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*/ |
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public function rollBackTX(\Exception $previousException = null) |
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{ |
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$connection = $this->getConnection(); |
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$this->transactionStack = 0; // Yes, we just ignore any error and reset the transaction stack here |
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if (!$connection) { |
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$previousException = new OrmException("Connection not open", array(), 101, $previousException); |
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} |
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if (!$connection->inTransaction()) { |
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$previousException = new OrmException("Transaction not open", array(), 102, $previousException); |
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} |
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try { |
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if (!$connection->rollBack()) { |
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$previousException = new OrmException("Could not rollback!", array(), 103, $previousException); |
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} |
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} catch (\PDOException $exception) { |
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$previousException = OrmException::fromPrevious($exception); |
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} |
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return $previousException; |
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} |
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} |
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maikgreubel /
caribu-orm
