Sonataadminbundle: How to hide relation in sonata_type_collection

[vazgen]

Hi,

I have an entity "question" that has one-to-many relation to "answer". So I have made admin classes for both and trying to use embedded form by "sonata_type_collection". The main problem is that in embedded answers also have field "question".

see screenshot at http://i.imgur.com/qJsdL.png

/**
 * Answer
 * @ORM\Table()
 * @ORM\Entity
 */
 class Answer
{
 /**
 * @var integer
 *
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;

/**
 * @var string
 *
 * @ORM\Column(name="name", type="string", length=255)
 */
private $name;

/**
 * @ORM\ManyToOne(targetEntity="IY\PollBundle\Entity\Question", inversedBy="answers")
 * @ORM\JoinColumn(name="question_id", referencedColumnName="id")
 */
protected $question;
}

/**
 * Question
 * @ORM\Table(name="poll_question")
 * @ORM\Entity
 */
class Question
{
/**
 * @var integer
 *
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;

/**
 * @var string
 *
 * @ORM\Column(name="name", type="string", length=255)
 */
private $name;

/**
 * @ORM\OneToMany(targetEntity="IY\PollBundle\Entity\Answer", mappedBy="question", cascade={"persist", "remove"})
 */
protected $answers;
}

////// admins

class QuestionAdmin extends Admin
{
 /**
 * Configure the form
 *
 * @param FormMapper $formMapper formMapper
 */
  public function configureFormFields(FormMapper $formMapper)
  {
    $formMapper
        ->with('General')
          ->add('name')
        ->end()
        ->with('Answers')
          ->add('answers', 'sonata_type_collection',  array('by_reference' => false, 'required' => false), array(
                'edit' => 'inline',
                'inline' => 'table',
            ))
        ->end()
;
  }


class AnswerAdmin extends Admin
{

/**
* Configure the form
*
* @param FormMapper $formMapper formMapper
*/
 public function configureFormFields(FormMapper $formMapper)
 {
 $formMapper
->with('General')
->add('question')
->add('name')
->end();
  }

///// services

 <service id="iy.poll.admin.answer" class="IY\PollBundle\Admin\AnswerAdmin">
        <tag name="sonata.admin" manager_type="orm" group="Poll" label="Answer" />
        <argument/>
        <argument>IY\PollBundle\Entity\Answer</argument>
        <argument>NULL</argument>
    </service>

    <service id="iy.poll.admin.question" class="IY\PollBundle\Admin\QuestionAdmin">
        <tag name="sonata.admin" manager_type="orm" group="Poll" label="Question" />
        <argument/>
        <argument>IY\PollBundle\Entity\Question</argument>
        <argument>NULL</argument>
    </service>

//////////////////////////////

So how to hide the file "question"?

I can do it by removing "->add('question')" from answer form, but in that case I have to hide also admin page for answer too.

[boda2004]

You can try code below in configureFormFields of AnswerAdmin

        if ($this->getRoot()->getClass() != 'IY\PollBundle\Entity\Question') {
            $formMapper
                ->add('question');
        }

It may be better to check root service id instead of entity class, but approach above works for me.
Also i had to add preUpdate and prePersist implementations to set question explicitly for each answer in collection, else answers removal does not work for me.
I'm using symfony 2.1.

[rande]

here the solution https://github.com/sonata-project/SonataNewsBundle/blob/master/Admin/CommentAdmin.php#L32

[vazgen]

thanks

[Tofandel]

This code might be more comprehensible and more flexible

use IY\PollBundle\Entity\Question;
//...
if ($this->getRoot()->getClass() != Question::class) {
//...
}

or if you want the field only displayed in it's own admin page

if ($this->getRoot()->getClass() == get_class($this->getSubject()) {
//...
}