Multiple identity properties for authentication in ZF2 with Doctrine 2 - authentication

Question

I have login form with input text fields:
Group Name
User Name
User Password
I have two tables
groups
id
name
users
id
name
group_id
I have its mapping entities and associations.
But user name not unique within table users, because different groups can include users with equal names. Therefore i need:
find group by name in table groups
find user by name in table users with condition where group_id=<group_id>
How to do it correctly in Zend Framework 2 using Doctrine 2?
All official documentation and examples depict situation, where identity property is single column (example).
Sorry for my bad language. Thanks.

Answer 1

Instead of making my own implementation of Doctrine's authentication services i decide to implement it via form validation inside isValid() method of my authentication form.
Example:
<?php
namespace My\Form\Namespace;
use Zend\Form\Form;
use Zend\ServiceManager\ServiceLocatorInterface;
use Zend\InputFilter\InputFilterProviderInterface;
class Auth extends Form implement InputFilterProviderInterface
{
protected $_em;
public function __construct(ServiceLocatorInterface $sm)
{
parent::__construct('auth');
// inject Doctrine's Entity Manager
$this->_em = $sm->get('Doctrine\ORM\EntityManager');
// login field
$this->add(...);
// password field
$this->add(...);
// group_name field
$this->add(...);
}
public function getInputFilterSpecification()
{
//Input filter specification here
...
}
public function isValid()
{
/*
* input filter validations
*/
if (!parent::isValid())
return false;
/*
* group exists validation
*/
$group = $this->_em
->getRepository('<Group\Entity\Namespace>')
->findOneBy(array(
'name' => $this->get('group_name')->getValue(),
));
if (!$group){
$this->get('group_name')
->setMessages(array(
'Group not found',
));
return false;
}
/*
* user exists validation
*/
$user = $this->_em
->getRepository('<User\Entity\Namespace>')
->findOneBy(array(
'group_id' => $group->getId(),
'name' => $this->get('login')->getValue(),
));
if (!$user){
/*
* It's not good idea to tell that user not found,
* so let it be password error
*/
$this->get('password')
->setMessages(array(
'Login or password wrong',
));
return false;
}
/*
* password validation
*/
$password = $this->get('password')->getValue();
// assume that password hash just md5 of password string
if (md5($password) !== $user->getPassword()){
$this->get('password')
->setMessages(array(
'Login or password wrong',
));
return false;
}
return true;
}
}
Inside controller it is enough to call $form->isValid() to make sure that user entered correct authentication data.

Answer 2

I have the same problem.
I have to do two authentications in same application, because my boss doesn't wanna two databases. So, I had to make two user tables and two login pages.
One route to admin -> /admin/login
And the front-end for other users -> /login
I've tried to put on more authenticate in doctrine authentication array but it didn't work.
I think I'll open a issue on doctrine github page.