How to customize the data-prototype attribute in Symfony 2 forms

Question

Since umpteens days, I block on a problem with Symfony 2 and forms.

I got a form of websites entities. \"Websites\" is a collection of website\'s entities and each w

Answer 1

To customize differently existing collection items VS prototype, you can override collection_widget like this:

{%- block collection_widget -%}
    {% if prototype is defined %}
        {%- set attr = attr|merge({'data-prototype': form_row(prototype, {'inPrototype': true} ) }) -%}
    {% endif %}
    {{- block('form_widget') -}}
{%- endblock collection_widget -%}

And then in your custom entry:

{% block _myCollection_entry_row %}

  {% if(inPrototype is defined) %}
      {# Something special only for prototype here #}
  {% endif %}
{% endblock %}