Serialization of 'PDO' is not allowed - Queue.Email Task with Mailer object

[LordSimal]

Exception: Serialization of 'PDO' is not allowed

<my-project-dir>/vendor/dereuromark/cakephp-queue/src/Model/Table/QueuedJobsTable.php:177
<my-project-dir>/src/Utility/AlfredJIRA.php:87

The code in src/Utility/AlfredJIRA.php:87 is as follows:

      $this->QueuedJobs->createJob('Queue.Email', [
        'settings' => $this->getMailer( 'Sunlime' ),
        'action' => 'notifyDuedateChanges',
        'vars' => [ $this->msg_array ]
      ]);

$this->msg_array here is just a simple associative array without any objects in them.

I think the problem here is the fact, that createJob() tries to serialise the data which contains a Mailer Object in the settings key. But I am not aware of how to fix that.

Versions

• dereuromark/cakephp-queue: 6.0.1
• cakephp/cakephp: 4.2.8
• PHP: 7.4.21

[LordSimal]

The Problem is the fact, that I tried to load the models in the construct() method inside my mailer. I had to refactor that so I load the model inside the mail function, not the construct method.