Can I access constants in settings.py from templates in Django?

Question

I have some stuff in settings.py that I'd like to be able to access from a template, but I can't figure out how to do it. I already tried

{{CONSTANT_NAME}} 

but that doesn't seem to work. Is this possible?

Answer 1

If it's a value you'd like to have for every request & template, using a context processor is more appropriate.

Here's how:

1. Make a context_processors.py file in your app directory. Let's say I want to have the ADMIN_PREFIX_VALUE value in every context:

   from django.conf import settings # import the settings file  def admin_media(request):     # return the value you want as a dictionnary. you may add multiple values in there.     return {'ADMIN_MEDIA_URL': settings.ADMIN_MEDIA_PREFIX} 

2. add your context processor to your settings.py file:

   TEMPLATES = [{     # whatever comes before     'OPTIONS': {         'context_processors': [             # whatever comes before             "your_app.context_processors.admin_media",         ],     } }] 

3. Use RequestContext in your view to add your context processors in your template. The render shortcut does this automatically:

   from django.shortcuts import render  def my_view(request):     return render(request, "index.html") 

4. and finally, in your template:

   ... <a href="{{ ADMIN_MEDIA_URL }}">path to admin media</a> ...