How do I run transactions in CakePHP3 for multiple model operation? - cakephp

Question

I want to use transactions on multiple insert/update query for multiple model/table.
In cakephp3 documentation have an example of transaction using connection manager execute() method but I have to use transaction with save() method of cakephp3. I tried it using save() method but it didn't work. There was a SQL error, it execute all query and saving data except the query where the sql error have, rollback didn't work!
my code was like-
$connection = ConnectionManager::get('default');
$connection->transactional(function ($connection) use($inputs, $status) {
$serviceTbl = $this->Service;
$service = $serviceTbl->newEntity();
$service->name = $inputs['name'];
$service = $serviceTbl->save($service);
if($service)
{
$this->loadModel('SrvApiClientInfo');
$SrvApiClientInfo = $this->SrvApiClientInfo;
$SrvApiClient = $SrvApiClientInfo->newEntity();
$SrvApiClient->client_name = $inputs['basic_info']['client_name'];
$SrvApiClient->organization_name = $inputs['basic_info']['vendor_name'];
$SrvApiClient->address = $inputs['basic_info']['address'];
$SrvApiClient->email = $inputs['basic_info']['email'];
$SrvApiClient->mobile = $inputs['basic_info']['mobile'];
$SrvApiClient->phone = $inputs['basic_info']['phone'];
$SrvApiClient->fax = $inputs['basic_info']['fax'];
$SrvApiClient->emergency_contact_name = $inputs['basic_info']['emergency_contact_name'];
$SrvApiClient->emergency_contact_mobile = $inputs['basic_info']['emergency_contact_mobile'];
$SrvApiClient->emergency_contact_designation = $inputs['basic_info']['emergency_contact_designation'];
$SrvApiClient = $SrvApiClientInfo->save($SrvApiClient);
if($SrvApiClient){
$this->loadModel('ServiceApiRegistration');
$tblServiceApiRegistration = $this->ServiceApiRegistration;
foreach($inputs['method'] as $method)
{
$ServiceApiRegistration = $tblServiceApiRegistration->newEntity();
$ServiceApiRegistration->service_id = $service['service_id'];
$ServiceApiRegistration->service_api_id = $method;
$ServiceApiRegistration->client_id = $SrvApiClient['client_id'];
$ServiceApiRegistration->status_id = $status['Inactive'];
$tblServiceApiRegistration->save($ServiceApiRegistration);
}
}
}
});

Answer 1

Check the docs that you've linked a little more closely, especially point 3 and 4 of the "The transactional method will do the following" list
The transactional method will do the following:
[...]
If the closure raises an exception, a rollback will be issued. The original exception will be re-thrown.
If the closure returns false, a rollback will be issued.
Your code neither returns false, nor does it throw an exception when something goes wrong, hence no rollback will be issued.
If there really was an SQL "error", ie an exception triggered in the core, then it should have been catched by the transaction wrapper, and a rollback should have been issued. So I'd suspect that either, there was no exception, or that rollbacks aren't supported or the driver thinks they aren't.