Django Migration Error: Column does not exist

Question

Python 3, Django 1.8.5, Postgres

I have a model Sites that has been working fine. I recently tried to add a field, airport_code, and migrate the data.

Answer 1

I ran into this problem recently after upgrading to Django 1.11. I wanted to permanently address the issue so I wouldn't have to comment / uncomment code every time I ran a migration on the table, so my approach:

from django.db.utils import ProgrammingError as AvoidDataMigrationError

try:
    ... do stuff that breaks migrations
except AvoidDataMigrationError:
    pass

I rename the exception during import to AvoidDataMigrationError so it's clear why it's there.