Context Processors

Template base Directory

There are probably more pages in your site that are not a blog or a post or otherwise related to wagtail. How do you use the same base template for all of them? And how do you switch the base template for those pages automatically when you switch the base template / theme for your site in wagtail?

The answer is to use a context processor. It will add two variables to the context of every template in your site:

• cast_base_template: the base template to use for the current theme

• cast_site_template_base_dir: the raw template base directory for the current theme holding bootstrap4 or plain for example

The cast_base_template variable is the one you could use in your local template to extend the base template:

{% extends cast_base_template %}
...

If you want to use this context processor, add it to your settings.py:

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                ...
                'cast.context_processors.site_template_base_dir',
            ],
        },
    },
]