On May 24, 5:49 pm, Martin <mb0...@googlemail.com> wrote: > Hi, > > I'm struggling with a simple edit-form. My model has a user-FK and > authenticated users can 'create' objects of this model with a form. > Pretty simple. They should be able to edit these objects later, but of > course not change the value of the user-field. So I excluded the > 'User'-field in my ModelForm. I thought when I exclude a field from a > form it just keeps it's value when I call save() on the form. But I > always get this error when trying to save a valid form: > > ' null value in column "User_id" violates not-null constraint '
If you intend your form to save changes to an existing object, you must pass that object in as 'instance' when creating the form. The reference is here: http://docs.djangoproject.com/en/dev/topics/forms/modelforms/#creating-forms-from-models Post your view if you are still having trouble. sdc --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
