symfony2 form templating

I want to render a form. HTML for a field row should be like this:

<li class="text">
  <label for="fieldname">
  <div>
    <input type="text" ... />
  </div>
</l开发者_Python百科i>

when the field type is text the li.class have to be the same.

I overwrite the field_row block:

{% block field_row %}
{% spaceless %}
    <li class="text">
        {{ form_label(form, label|default(null)) }}
        {{ form_errors(form) }}
        {{ form_widget(form) }}
    </li>
{% endspaceless %}
{% endblock field_row %}

but how to replace the class value?

You can try to attach a public member to your FormType class (If present...) and call it from the twig template.

Maybe also the attributes array of a form can be accessed in a twig template...

class YourType extends AbstractType
{
    public $class = 'text';

    public function buildForm(FormBuilder $builder, array $options)
    {
        $builder->add('fieldname');
    }
    //...
}

And

{% block field_row %}
{% spaceless %}
    <li class="{{ form.class }}">
        {{ form_label(form, label|default(null)) }}
        {{ form_errors(form) }}
        {{ form_widget(form) }}
    </li>
{% endspaceless %}
{% endblock field_row %}

Just replace the "field" word with the name of the type you want to modify.

You do it like this for text fields, but it's the same for any type:

{% block text_row %}
{% spaceless %}
    <li class="text">
        {{ form_label(form, label|default(null)) }}
        {{ form_errors(form) }}
        {{ form_widget(form) }}
    </li>
{% endspaceless %}
{% endblock text_row %}

or like this for textareas:

{% block textarea_row %}
{% spaceless %}
    <li class="textarea">
        {{ form_label(form, label|default(null)) }}
        {{ form_errors(form) }}
        {{ form_widget(form) }}
    </li>
{% endspaceless %}
{% endblock textarea_row %}

The important part is the block name, it should be the same as the name of the type you want to modify. The "field_row" is the default for all field types if there is no exact matching name.

This also works for form-types you defined yourself (the ones that inherit from AbstractType, that's why it's important you add a name to your form-types, see http://symfony.com/doc/2.0/book/forms.html#creating-form-classes).