Transactions with Model

I found a solution. The code below:

Code:

$UserModel->db->transStart();

$UserModel->save($user);
$ProfileModel->save($profile);

$UserModel->db->transComplete();

Turn into:

Code:

$this->db->transBegin();

if (! $UserModel->save($user)){
$failed = true;
}

if (! $ProfileModel->save($user)){
$failed = true;
}if ($this->db->transStatus() === false || $failed) {
    $this->db->transRollback();
} else {
    $this->db->transCommit();
}

That's all. Enjoy

$this->db, $userModel and $profilModel are using a same connection?