Question

I am trying to add some simple tenancy support to an app, creating an Account model which has a string ‘tenant’ to be read from the request url and identify the tenant in the system:

tenant.example.com/* -> http://www.example.com/tenant/* (rewritten by apache)

I wrote a simple middleware to capture this /tenant/ from request.path and add a request.account object to be worked with.

My problem is my url mapping.

I tried this:

url(r'^(?P<tenant_id>[\w\-]+)/', include('project.urls_tenant')),

and defined some simple urls inside urls_tenant.py:

url(r'^app1/', include('project.app1.urls')),

url(r'^app2/', include('project.app2.urls')),

When I try to access any page, I get an error message:

generic_view_method() got an unexpected keyword argument ‘tenant_id’

because it doesn’t (and really shouldn’t) expect tenant_id as a parameter.

If I hardcode tenant_id in the urls.py file as /test_tenant/ everything works fine.

What am I doing wrong and how to fix it, so the request and the response gets processed normally?

Thank you guys pretty much. I used this as reference: optimal architecture for multitenant application on django

Answer 1

You are capturing the named parameter tenant_id in the url pattern when you apparently don’t need to. Try removing the parentheses to avoid performing the capture:

url(r'^[\w\-]+/', include('project.urls_tenant')),

This page is a generally useful read:
https://docs.djangoproject.com/en/dev/topics/http/urls/#how-django-processes-a-request