Question

I am displaying a form with Symfony2 and Twig, and need to display some fields in a dynamic order using a loop over an array. The code looks like this:

{% for activity in activities %}
  <div class="check">
    {{ form_label(tags_form.chactivity{{ activity.id }}) }}
    {{ form_widget(tags_form.chactivity{{ activity.id }}) }}
  </div>
{% endfor %}

But of course the {{ activity.id }} does not fit here.

How can I use the activity.id (integer) inside the {{ form_label(...) }} and {{ form_widget(...) }} expressions?

Answer 1

You can do this using the attribute function:

{{ form_label(attribute(tags_form, 'chactivity' ~ activity.id)) }}