Is there a complete list of variables that can be used in form_div_layout.html.twig?

Question

I want to get all the variables available in the Symfony form theme file form_div_layout.html.twig, I read the Symfony official documention and searched on the web, but couldn't find any useful information on this, can someone help me?

Answer 1

Well, you can get all the available variables in each block by iterating the context:

{% block form_widget_simple %}
<ol>
    {% for key, value in _context %}
    <li>{{ key }}</li>
    {% endfor %}
</ol>
{% spaceless %}
    {% set type = type|default('text') %}
    <input type="{{ type }}" {{ block('widget_attributes') }} {% if value is not empty %}value="{{ value }}" {% endif %}/>
{% endspaceless %}
{% endblock form_widget_simple %}

And if you want to use yours, then you'll have to overwrite the classes that actually are rendering those widgets, just take a look at AbtractType::buildView...

As @Gregoire suggested, you can use {{ dump(_context) }} from version 1.5 (http://twig.sensiolabs.org/doc/functions/dump.html), but be aware that it will print a big amount of info.