Testing django application with several legacy databases

Question

I have django application with 5 legacy databases. Almost all models are set with the meta attribute managed=False. Since managed=False is set, mig

Answer 1

Here is how I solved my problem for now.

Migrations that are created with managed=False option look like this:

# migrations/0001_initial.py
migrations.CreateModel(
            name='MyModel',
            fields=[
                ('field_id', models.IntegerField(primary_key=True, serialize=False)),
                ('slug', models.CharField(max_length=20, unique=True)),
                ('name', models.CharField(max_length=64)),
            ],
            options={
                'db_table': 'MyModel',
                'managed': False,
            },
        ),

One needs to comment out 'managed': False to allow migrations to be applied. In order not to mess with actual migrations, I have created folder test_migrations and copied there my migrations with 'managed': False commented out:

# test_migrations/0001_initial.py
migrations.CreateModel(
            name='MyModel',
            fields=[
                ('field_id', models.IntegerField(primary_key=True, serialize=False)),
                ('slug', models.CharField(max_length=20, unique=True)),
                ('name', models.CharField(max_length=64)),
            ],
            options={
                'db_table': 'MyModel',
                # 'managed': False,
            },
        ),

Then we need to refer to these migrations during test run. To do that, I have created settings file test.py and put there necessary references. Like this:

from web_services.settings.dev import *


MIGRATION_MODULES = {
    'myapp': 'web_services.apps.myapp.test_migrations',
}

And when running tests, you need to refer to that settings:

python manage.py test --settings=web_services.settings.test