类AppBundle \\ Entity \\ Tarifa的对象无法转换为字符串

Question

I saw a lot of similar issues, but I can't find the solution to this without adding __toString() method.

This works for me:

    $tarifa = new Tarifa();

    $form = $this->createForm('AppBundle\Form\TarifaType', $tarifa);

And this does not work...

    $tarifa = new Tarifa();

    $peso1 = new TarifaPeso();
    $tarifa->addPeso($peso1);

    $form = $this->createForm('AppBundle\Form\TarifaType', $tarifa);

Any help is welcome...

Answer 1

I believe you need this

$tarifa->addPeso($peso1->getPeso());

or this

$tarifa->addPeso($peso1->getAmount());

Depending on which property in TarifaPeso you have for this, if its also an entity and have getters

or its a ValueObject?

Answer 2

Configure option choice_label to be a property from TarifaPeso in your TarifaType class. This way, symfony does not intend to convert entity to a string when printing the option label. Instead, it will take the property that you point to.

Answer 3

Finally I solved it! The fact is I had added the field in the TarifaType that is related to the Collection. I removed the field below and now it works! Hope it could help anybody... Thanks to all

->add('tarifa', null, array(
                'attr' => array('autofocus' => true),
                'label' => 'label.code',
            ))