On Wed, Feb 25, 2009 at 7:55 PM, Margie <margierogin...@yahoo.com> wrote:
> > Say I create a form that reflects the current state of an object. The > user can edit that form, and when they click 'save', I get back the > new, possibly edited, values via the POST. In my POST code I do > something like this: > > postDict = request.POST.copy() > bookForm = BookForm(postDict, instance=bookObj) > if bookForm.is_valid() > bookForm.save() > > What do folks typically do to avoid saving the data if nothing has > been modified in the form? Is there any django functionality for > doing this, or do I just write the manual check that compares the > fields in the form to the fields in the existing object? > > I'm not only concerned with the database access. In addition to > avoiding the save, I'd like to emit a message to the user that > reflects what they've done, or not done. IE, "book foo updated' or > "book foo unchanged". > > Anyway, just curious if others have encountered this. > > Margie > > > Form's have a method "has_changed" which says whether or not there is changed data, this should do just what you expect. 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 --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
