Collection protoytype broken in RC5

[leevigraham]

I'm still learning how to best implement collections w/ allow_add, allow_delete and protoytype so I can't provide a pull request.

Looks like the way the collection fieldtype works has changed. Here's the error:

Key "$$name$$" in object (with ArrayAccess) of type "Symfony\Component\Form\FormView" does not exist in "AcmePizzaBundle:Order:index.html.twig" at line 36

Cheers Leevi

[brikou]

In order to render the template of collection we uses the "$$name$$" reference (https://github.com/beberlei/AcmePizzaBundle/blob/master/Resources/views/Order/index.html.twig#L35) but as of RC5, this entry is not available anymore.

I'll try to find a way to bypass this restriction...

here is the pr which introduced the "bug" https://github.com/symfony/symfony/commit/257f86cb204ed8da781a7a8160381eac5355c91e

[leevigraham]

RC5 renders the prototype in the data-prototype attribute of the form element. Outputting {{ form_widget(your_form) }} demonstrates this. I'm currently re-readings the form documentation to see how to customise the twig output. Like I said I'm still a noob :D

[brikou]

@leevigraham this commit https://github.com/beberlei/AcmePizzaBundle/commit/7ae6d8312eb66800fba8bd5da7def8e5bde89842 solves this issue

[leevigraham]

Thanks for that. Did you figure it out by looking directly at the code or by following some documentation? I'd love to learn the best way to debug Symfony 2 issues.

[brikou]

I'm not sure this was the best way, but I've noticed that prototype form was recorded as an attribute of "form.items" and FormView class allows a "get" method... tried and this worked, obviously there is no documentation to customize prototype rendering...

This could be a nice cookbook but maybe form is not stable enough ;)