Merge branch 'feat-2.7-choice-attr' of git://github.com/Maff-/bootstr…

…ap-bundle into Maff--feat-2.7-choice-attr

* 'feat-2.7-choice-attr' of git://github.com/Maff-/bootstrap-bundle:
  Render option attr of collapsed choice types

Resources/views/Form/bootstrap.html.twig

@@ -222,7 +222,13 @@
                     {{ block('choice_widget_options') }}
                 </optgroup>
             {% else %}
-                <option value="{{ choice.value }}"{% if choice is selectedchoice(value) %} selected="selected"{% endif %}>{{ choice_translation_domain is defined ? (choice_translation_domain is same as (false) ? choice.label : choice.label|trans({}, choice_translation_domain)) : choice.label|trans({}, translation_domain) }}</option>
+                {% set id = null %}
+                {% set attr = (attribute(choice, 'attr') is defined) ? choice.attr : [] %}
+                <option value="{{ choice.value }}"
+                        {% if choice is selectedchoice(value) %} selected="selected"{% endif %}
+                        {{ block('widget_container_attributes') }}>
+                    {{ choice_translation_domain is defined ? (choice_translation_domain is same as (false) ? choice.label : choice.label|trans({}, choice_translation_domain)) : choice.label|trans({}, translation_domain) }}
+                </option>
             {% endif %}
         {% endfor %}
     {% endspaceless %}