Python/Django notes from a Ruby/Rails Developer

So, recently I starting working with Python/Django, come from a Ruby/Rails background, I decide keep notes about some points. So here we go:

NOTE: I will keep this post updated as I figure out new things.

• Use pk instead of id

Some models don’t follow the rule of use id as the primary key. So always use .pk in order to get the correct primary key

object.pk

• Run single test case: ./manage.py test app.tests.test_helper

• Tests: mocks

Inform the path from where the method is called. In this case, the method foo_bar is used inside the my_app helper.

@mock.patch('my_app.helpers.foo_bar', return_value=10)

If is a object related method, use:

mock.patch.object(Object, 'foo_bar')

You can also use return_value if you need

 mock.return_value = some_thing

• Refresh object from DB

obj.refresh_from_db()