Question

I have two models, Lesson and Evaluation. Each lesson can have multiple evaluations.

I am trying to set up an embedded form which will allow users to enter all of this data at the same time.

It works fine for adding and editing data, however I have a problem if I try to remove an evaluation.

For example, I have a lesson with three evaluations attached. I then submit with form again but with one of those removed.

In the controller, I first get the lesson being edited, then get its evaluations and loop through them, printing the ids. Three ids are printed as expected.

Next, I bind the request to the form and check if it is valid. I then get the evaluations again and loop through them once more to check that they’ve been removed, however all three ids were still there!

If I print the raw POST data, there are only two.

Can anyone see what I have done wrong?

Here is my controller code:

public function editAction($id = NULL)
{
    $lesson = new Lesson;

    if ( ! empty($id))
    {
        $lesson = $this->getDoctrine()
                    ->getRepository('LessonBundle:Lesson')
                    ->find($id);
    }

    foreach ($lesson->getEvaluations() as $evaluation)
    {
        print_r($evaluation->getId());
        print_r('<br />');
    }


    $form    = $this->createForm(new LessonType(), $lesson);
    $request = $this->getRequest();

    if ($request->getMethod() == 'POST') {

        $form->bindRequest($request);

        if ($form->isValid()) {

            foreach ($lesson->getEvaluations() as $evaluation)
            {
                print_r($evaluation->getId());
                print_r('<br />');
            }
            die();

            $em = $this->getDoctrine()->getEntityManager();
            $em->persist($lesson);
            $em->flush();
        }
    }
}

Here is my lesson form:

class LessonType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('evaluations', 'collection', array(
                                            'type' => new EvaluationType(),
                                            'allow_add' => true,
                                            'by_reference' => false,
                                            'allow_delete' => true,
                                            ));
    }

    public function getDefaultOptions(array $options)
    {
        return array(
            'data_class' => 'LessonBundle\Entity\Lesson',
        );
    }

    public function getName()
    {
        return 'Lesson';
    }
}

And finally, my Evaluation form:

class EvaluationType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('report');
    }

    public function getDefaultOptions(array $options)
    {
        return array(
            'data_class' => 'LessonBundle\Entity\Evaluation',
        );
    }

    public function getName()
    {
        return 'Evaluation';
    }
}

Any advice appreciated.

Thanks.

Answer 1

I got around in by using:

$lesson = $form->getData();