How should I style Django validation errors with Bootstrap?

In Twitter Bootstrap, input elements are enclosed between "control-group" div or fieldset. So I would do something like this in template

{%for field in form %}
<div class="control-group {%if field.errors %}error{%endif%}">
{# render your field #}
</div>
{% endfor %}

Note: In bootstrap, class="alert alert-error" seems to be for alert messages and not for field specific errors.

In Bootstrap 3, input elements are enclosed between "form-group" divs and the error class has changed to has-error.

{%for field in form %}
  <div class="form-group {%if field.errors %}has-error{%endif%}">
    {# render your field #}
  </div>
{% endfor %}