/**
* Helper function for generation and getting lock for new
* random token
*
* @return string new token
*/
protected function generateNewToken()
{
// Generate new key
for ($i = 0;; $i++) {
if ($i > 10) {
$this->dbConnection->rollback();
throw new Nette\InvalidStateException("Couldn't generate unused token");
}
$newToken = $this->generateToken();
if ($this->dbConnection->query('SELECT * FROM %n', $this->tableName, 'WHERE [token] = %s', $newToken, 'FOR UPDATE')->fetch() === FALSE) {
break;
}
}
return $newToken;
}
/**
* Rollback transaction
*
* @param null $savepoint
*
* @throws \DibiException
*/
public function rollback($savepoint = NULL)
{
$this->database->rollback($savepoint);
}
/**
* Vrátí prováděnou transakci.
* @param string $savepoint
* @throws \DibiException
*/
public function rollback($savepoint = NULL)
{
$this->connection->rollback($savepoint);
}
