PHP Symfony Forms How to access Properties in nested objects

Question

I am creating several forms with Symfony and the FormBuilder. Normally I provide a flat object that holds all properties the form needs to access. This works fine. The form fills the object with the correct values and I can send it as json to a webservice wher it is processed (so I don't access a database at all). But in several cases I got nested objects from the webservice that have to be updated or I have to send nested objects (as json) to the service and I wonder if it is possible to access properties of nested objects within the form.

Normally you do

$form = $this->createFormBuilder($myObject)
->add('myProp', 'text', array(
    'label'=>$this->get('translator')->trans('my Property')
))

But in my case myObject holds another object where some properties are located. So I would need to do something like this:

$form = $this->createFormBuilder($myObject)
->add('nestedObj.myProp', 'text', array(
    'label'=>$this->get('translator')->trans('my Property')
))

But unfortunately this does not seem to work. Is there another solution to deal with nested objects and forms?

This seems to be a duplicate of this previously answered question — Yoann Chambonnet
– Yoann Chambonnet, Commented Dec 13, 2013 at 10:45
Have you read through the forms manual? Nested objects are very common. You just need to make a form type specific to each entity type. ->add('nestedObj',new NestedObjFormType()) — Cerad
– Cerad, Commented Dec 13, 2013 at 14:18
Just a note but you don't need to use the translator. You can just write the property and translator will work automatically. — qooplmao
– qooplmao, Commented Dec 16, 2013 at 0:54
Thank you very much. As symfony is still new to me that was very good help. — Mannimalte
– Mannimalte, Commented Dec 16, 2013 at 13:49

Bernhard Schussek · Accepted Answer · 2013-12-17 13:40:14Z

7

Dots are not allowed in field names (the reason for this lies in the details of the HTML specification). However, you can override the "property_path" option to customize the used property path:

$form = $this->createFormBuilder($myObject)
    ->add('myProp', 'text', array(
        'label' => $this->get('translator')->trans('my Property'),
        'property_path' => 'nestedObj.myProp',
    ))

answered Dec 17, 2013 at 13:40

Bernhard Schussek

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