Context Processors and Using MEDIA_URL in Templates

To use MEDIA_URL in a template, we could pass it in through the rendering context dictionary, in our view. For example:

from django.conf import settings
def my_view(request):
    return render(request, "template.html",\
                  {"MEDIA_URL": settings.MEDIA_URL,\
                   "username": "admin"})

This will work, but the problem is that MEDIA_URL is a common variable that we might want to use in many places, and so we'd have to pass it through in practically every view.

Instead, we can use a context processor, which is a way of adding one or more variables automatically to the context dictionary on every render call.

A context processor is a function that accepts...