Ability to customise field.label CSS

[savchenko]

I need to style <input> and <label> tags. Is there a way to modify how field.label operates in Jinja templates?

To provide some context, this is required in the omnipresent Bootstrap CSS.

I am thinking of piggybacking onto WTForm's render_kw dictionary, but can't quite figure out how to do it.

[savchenko]

Solved!

{% macro render_field_with_errors(field) %}
<div class="{{ kwargs.pop('divclass', '') }}" id="{{ field.id|default('fs-field') }}">
    {{ field(**kwargs)|safe }} {{ field.label }}
    {% if field.errors %}
    <ul>
        {% for error in field.errors %}<li class="fs-error-msg">{{ error }}</li>{% endfor %}
    </ul>
    {% endif %}
</div>
{% endmacro %}

Than you can do something like:

{{ render_field_with_errors(login_user_form.email, class="myclass", divclass="mydivclass", placeholder="[email protected]") }}