/**
* {@inheritdoc}
*/
public function rollback()
{
return $this->driver->rollbackTransaction();
}
/**
* Perform set of atomic operations required to update table schema.
*
* @throws SchemaException
* @throws \Exception
*/
protected function updateSchema()
{
if ($this->primaryKeys != $this->dbPrimaryKeys) {
throw new SchemaException("Primary keys can not be changed for already exists table.");
}
$this->driver->beginTransaction();
try {
$this->updateColumns();
$this->updateIndexes();
$this->updateForeigns();
} catch (\Exception $exception) {
$this->driver->rollbackTransaction();
throw $exception;
}
$this->driver->commitTransaction();
}
