On Mon, 2009-04-27 at 21:11 +0200, Emmanuel Surleau wrote: > On Monday 27 April 2009 20:12:13 karl wrote: > > > Apologies in advance, I'm sure this query pops up regularly. > > > > > > I'd like to replace the default User class which comes with Django's > > > authentication system (for my application, users login via > > > email/password, not login/password, so it's not only a matter of adding > > > fields). > > > > > > Is there an easy way to do it? Or should I just roll my own and give on > > > the default authentication system and (sniff) admin site? > > > > This blog article explains it simply and has ready-to-use code: > > > > http://www.davidcramer.net/code/224/logging-in-with-email-addresses-in- > djan > >go.html > > Very nice and useful. However, it suffers from a simple flaw: the default > Django user model does not guarantee the uniqueness of email addresses, > which is a problem when you need it as primary key.
Non-uniqueness is a consideration, but your conclusion doesn't follow. You don't need it as a primary key for what you're doing. and creating a new model won't solve the bulk of the problem. You do want to check that the email address is unique and that's a matter of doing so at form creation time. Django doesn't currently have any level of model-field validation, so this has to be checked in the form in any case (or in the code that is creating the user). You can certainly do an "alter table" on your database to add the uniqueness constraint to the column if you want to make sure no non-unique entries are inserted. That doesn't require a model change. If you're creating a form to enable users to specify their details, manually specify that the email (form) field should have unique=True. If you're doing it via code (e.g. calling User.objects.create_user()), check for uniqueness first -- creating a new or different model won't help you there in any case, so it's not creating any extra work. Regards, Malcolm --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
