/**
* Rollback the active database transaction.
*
* @return void
*/
public function rollBack()
{
if ($this->transactions == 1) {
$this->getPdo()->rollBack();
} elseif ($this->transactions > 1 && $this->queryGrammar->supportsSavepoints()) {
$this->getPdo()->exec($this->queryGrammar->compileSavepointRollBack('trans' . $this->transactions));
}
$this->transactions = max(0, $this->transactions - 1);
$this->fireConnectionEvent('rollingBack');
}
/**
* Rollback the active database transaction.
*
* @param int|null $toLevel
* @return void
*/
public function rollBack($toLevel = null)
{
if (is_null($toLevel)) {
$toLevel = $this->transactions - 1;
}
if ($toLevel < 0 || $toLevel >= $this->transactions) {
return;
}
if ($toLevel == 0) {
$this->getPdo()->rollBack();
} elseif ($this->queryGrammar->supportsSavepoints()) {
$this->getPdo()->exec($this->queryGrammar->compileSavepointRollBack('trans' . ($toLevel + 1)));
}
$this->transactions = $toLevel;
$this->fireConnectionEvent('rollingBack');
}
