Adding JS and CSS cleanly from included Twig templ

问题:

I'm looking to find out if there's a clean way to add JS and CSS from included templates.

So, for example, if layout.html.twig has:

{% include 'GenericBundle:Generic:page.html.twig' with {'data': data} %}
...
{% block javascript %}

    {% javascripts
        '@GenericBundle/Resources/public/js/app/jquery/jquery.min.js'
        '@GenericBundle/Resources/public/js/lib/bootstrap/bootstrap.min.js'
    %}
        <script src="{{ asset_url }}"></script>
    {% endjavascripts %}

{% endblock %}

And in the generic bundle page I'd like to include some more Javascript but add it to the established Javascript block to keep to HTML and JS best practices.

Is there a clean way to do this? I'm using Symfony2, and could probably cludge together a solution using Singletons and such, but I'd rather a cleaner method if there's one available.

回答1:

I know I'm a little late to the party, but with Twig 1.2, you can utilize the use tag and the block function:

GenericBundle:Generic:page.html.twig

{% block javascripts %}
    <script src="..."></script>
{% endblock %}
{% block included_content %}
   Bar
{% endblock %}

layout.html.twig

{% use 'GenericBundle:Generic:page.html.twig' with javascripts as page_javascripts %}

{% block javascript %}

    {% javascripts
        '@GenericBundle/Resources/public/js/app/jquery/jquery.min.js'
        '@GenericBundle/Resources/public/js/lib/bootstrap/bootstrap.min.js'
    %}
        <script src="{{ asset_url }}"></script>
    {% endjavascripts %}
    {{ block('page_javascript') }} // Don't forget the 'braces'

{% endblock %}

...
{{ block('included_content') }} // Don't forget the 'braces'