On Tue, Aug 18, 2009 at 8:57 AM, Léon Dignòn<leon.dig...@gmail.com> wrote: > > Hello, > > in the authentication documentation is written that the user profile > should be extended with a foreign key. > > - > http://docs.djangoproject.com/en/dev/topics/auth/#storing-additional-information-about-users > > "If you'd like to store additional information related to your users, > Django provides a method to specify a site-specific related model -- > termed a "user profile" -- for this purpose. > > To make use of this feature, define a model with fields for the > additional information you'd like to store […] and also add a > ForeignKey from your model to the User model, specified with > unique=True to ensure only one instance of your model can be created > for each User." > > > > If you look at the model documentation you can find this extract from > the text. > > - http://docs.djangoproject.com/en/dev/ref/models/fields/#ref-models-fields > > "A one-to-one relationship. Conceptually, this is similar to a > ForeignKey with unique=True, but the 'reverse' side of the relation > will directly return a single object. > > This is most useful as the primary key of a model which "extends" > another model in some way […]" > > > > Why should I use a ForeignKey if I want my user profile extended? If > the reverse side will return a single object, I could spare a little > bit of code, if I just write: >>>> "User.objects.get(username='Leon').avatar" > instead of >>>> "u = User.objects.get(username='Leon')" >>>> "UserProfileExtension.objects.get(user=u).avatar" > > > > Comments are welcome! > > -ld > > >
Personally I always use a 1-1 field, for both the reasons you mention, and some automatic caching stuff I have only works automatically with 1-1 fields :) Alex -- "I disapprove of what you say, but I will defend to the death your right to say it." -- Voltaire "The people's good is the highest law." -- Cicero "Code can always be simpler than you think, but never as simple as you want" -- Me --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
