Django migration issues on pscale branch

[adrianchang3]

The production branch works fine in django. However, when making a dev branch and running the server, django prompts that there are n unapplied migrations. I am unable to apply those migrations to the dev branch since the schema already exists (as intended with pscale's branching feature). I am able to run the server without the migrations, but cannot access any urls due to this error:

DoesNotExist at /admin/login/
Site matching query does not exist.

I'm unsure why django detects missing migrations since the tables/schema should be the same between the main and dev branch.
I assume I can fake migrations to bring the migrations up to date with the dev db, but still cannot run the webapp due to the above error. How can I resolve this?

[adrianchang3]

Solved this after some digging:

Since you cannot apply migrations to an existing schema, fake the migrations first using manage.py migrate --fake. This will bring the dev db up to date with current migrations.

To resolve the site query error, you must create a site object in the sites table for the dev database. This is normally done automatically during initial migration but since that migration wasn't run, you can add a sites object manually in the shell:

manage.py shell
In [1]: from django.contrib.sites.models import Site
In [2]: Site.objects.create(name='127.0.0.1', domain='127.0.0.1')

Make sure you define a site_id in your settings: SITE_ID = 1