If you need two values for validation, you can't use clean_value_a() since it is undefined if value_a or value_b gets cleaned first. This little helper lets you add ValidationErrors to fields instead of \__all\__. Related [Ticket 5335](http://code.djangoproject.com/ticket/5335).
Maybe there is a better solution, feedback welcome!
If you want to test a post request to a form, you need to give all input fields, even if you just want to test if one value gets changed. This snippets parses the HTML of a view and gives you a dictionary that you can give to django.test.Client.
If you use this pattern to track changes in the auth user table: from django.contrib.auth.models import User from reversion.helpers import patch_admin patch_admin(User) you can't see important changes, since a version is created for every login if a user. If you want to get rid of changes which only change unimportant stuff you can use this middleware. This middleware can be used for every model. Just use this pattern in your settings: REVERSION_CLEAN={ 'django.contrib.auth': {'User': ['last_login']}, }
If you app defines some URLs with a name, and you want to overwrite this at project level with a different view you can use this snippet. You only need to change on line in the application code (the import statement).
has_perm.py: Check if a user can access a view without calling it One of the goals: You can disable or hide a link if the user must not call it.
Changing the size of max_length in the model is fast. But sometimes you forget to update all running systems which use this model. This unittest helps you to find the difference between Model and DB before the users get uncaught exceptions.