Symfony update related entities - symfony

Question

Lets say we have Employee registration system. We have four entities: Employee, Login, Phone, Email
One Employee has Many login,s, Many Phones and ManyEmails
I have created LoginType:
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder
->add('username')
->add('password');
}
Then Phone type:
public function buildForm(FormBuilderInterface $builder, array $options){
$builder
->add('phone');
}
Email Type
public function buildForm(FormBuilderInterface $builder, array $options){
$builder
->add('eMail') ;
}
And Finally Employee type, what ties all of them togheder, plus some extra fields:
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder
->add('firstname')
->add('middleNames')
->add('lastname')
->add('dateofbirth', 'date', array(
'widget' => 'single_text',
'read_only' => true
))
->add('address')
->add('idcode')
->add('position')
->add('phone', new EmployeePhoneType(), array('data_class' => null))
->add('email', new EmployeeEmailType(), array('data_class' => null))
->add('login', new LoginType(), array('data_class' => null))
->add('save', 'submit');
}
In ORM all entities have relations
class Employee {
/* ...Other fileds not shown here...*/
/**
* #var Doctrine\Common\Collections\ArrayCollection $login
* #ORM\OneToMany(targetEntity="Crm\AuthBundle\Entity\Login", mappedBy="employee", cascade={"persist"})
*/
protected $login;
/**
* #var Doctrine\Common\Collections\ArrayCollection $phone
* #ORM\OneToMany(targetEntity="Crm\AdminBundle\Entity\EmployeePhone", mappedBy="employee", cascade={"persist"})
*/
protected $phone;
/**
* #var Doctrine\Common\Collections\ArrayCollection $email
* #ORM\OneToMany(targetEntity="Crm\AdminBundle\Entity\EmployeeEmail", mappedBy="employee", cascade={"persist"})
*/
protected $email;
}
class EmployeePhone{
/**
* #ORM\ManyToOne(targetEntity="Crm\AdminBundle\Entity\Employee", inversedBy="phone", cascade={"persist"})
* #ORM\JoinColumn(name="employee_id", referencedColumnName="id", nullable=false)
*/
private $employee;
}
class EmployeeEmail{
/**
* #ORM\ManyToOne(targetEntity="Crm\AdminBundle\Entity\Employee", inversedBy="email", cascade={"persist"})
* #ORM\JoinColumn(name="employee_id", referencedColumnName="id", nullable=false)
*/
private $employee;
}
class Login{
/**
* #ORM\ManyToOne(targetEntity="Crm\AdminBundle\Entity\Employee", inversedBy="login", cascade={"persist"})
* #ORM\JoinColumn(name="employee_id", referencedColumnName="id", nullable=false)
*/
protected $employee;
}
Now when i do the updtade action i first load employee object in controller:
$employee = $this->getDoctrine()->getRepository('AdminBundle:Employee')
->find($empId);
And then initiate form and tie $employee with form:
$form = $this->createForm(new EmployeeType(), $employee, array(
'action' => $this->generateUrl('employee_save')
));
The problem $employee object itself is correctly loaded and displaied in form fields, but all releated objects are shown as object(Doctrine\ORM\PersistentCollection)[416] and no data is retrived. Even if i do initialize() for those PersistentCollections, then data is shown under coll atribute, but not displayed in form.
How to do thos update action correctly ?

Answer 1

You're looking for the collection field-type for a one-to-many relation between Employee and Phone/Email/Login

Answer 2

Yes collection type field would have been best choice in this case, but since i realized that application actually needs fixed number of phone and e-mail fields, then i removed separate entity and saved fixed number of entries into main entity. Also fixed data_class to correct one.