/**
* Begins a transaction
* @return void
*/
function begin()
{
$query = array();
$query[] = 'START TRANSACTION';
if ($this->isolationLevel) {
$query[] = ' ' . $this->isolationLevel->toDialectString($this->db->getDialect());
}
if ($this->mode) {
$query[] = ' ' . $this->mode->toDialectString($this->db->getDialect());
}
$this->db->sendQuery(new RawSqlQuery(join(' ', $query)));
$this->isStarted = true;
$this->isCommited = false;
$this->isRolledBack = false;
}
/**
* @return Queue
**/
public function run(DB $db)
{
$db->queryRaw($this->toDialectString($db->getDialect()));
return $this;
}