associated data in Mailer in CakePHP 3 - cakephp

Question

I'm working on CakePHP 3.4
I have a contact_messages table to save message via form on website.
I want to send user an email whenever a new message is saved.
For that, I have created mailer class like
<?php
namespace App\Mailer;
use Cake\Mailer\Mailer;
use Cake\Event\Event;
use Cake\Datasource\EntityInterface;
class ContactMessageMailer extends Mailer
{
public function newMessage($message)
{
$this
->setProfile('no-reply')
->setTemplate('new_message')
->setLayout('message')
->setEmailFormat('html')
->setTo($user->email) // user email
->setSubject('Verify Account')
->setViewVars(['name' => $user->first_name, 'email' => $user->email, 'message' => $message->body]);
}
public function implementedEvents()
{
return [
'Model.afterSave' => 'alertMessage'
];
}
public function alertMessage(Event $event, EntityInterface $entity, \ArrayObject $options)
{
if ($entity->isNew()) {
$this->send('newMessage', [$entity]);
}
}
}
and registering event in ContactMessagesTable.php
$mailer = new UserMailer(); //use App\Mailer\UserMailer;
$this->eventManager()->on($mailer);
ContactMessages belongsTo Users and Users is having email of user whom to send the email.
How can I get users information in Mailer?

Answer 1

Will probably do this;
In the User table;
public function processUser($user)
{
if($this->save($user)){
$event = new Event('Model.afterSave', $this, [$entity = $user])
$this->eventManager()->dispatch($event);
return true;
}else{
return false;
}
}
In ContactMessage Table ;
public function initialize()
{
parent::intialize();
$mailer = new UserMailer(); //use App\Mailer\UserMailer;
$this->Users->eventManager()->on($mailer); //ContactMessage has to be related to User table
}
Hope I was able to communicate.