Hi again, That's exactly what I did and the point is that it doesn't work! See my comments below ...
On Jul 21, 8:00 pm, Shawn Milochik <shawn.m...@gmail.com> wrote: > On Jul 21, 2009, at 12:49 PM, mettwoch wrote: > > > > > Sorry my old brain doesn't get it. Is there somewhere a complete CRUD > > example using ModelForm? > > > Thanks > > Marc > > CRUD: > > If your modelform is called PartnerForm, then. > > CREATE and UPDATE: > > #on initial page load (no POST) > > #if you have a partner object already (named partner_instance): > partner_form = PartnerForm(instance = partner_instance) > #otherwise: > partner_form = PartnerForm() > > #in the POST portion of your view > partner_form = PartnerForm(request.POST) > if partner_form.is_valid(): > partner_form.save() This always creates a new partner! In fact, in the ModelForm documentation is written that the save() method creates a new instance unless an existing instance is passed to the ModelForm constructor. So one has to differentiate if the POST comes from an initially empty form or from a bound form! How can this be done? I believe that it could be easily achieved if the primary-key were always included as a hidden field. If it's empty, then 'create' otherwise 'get' & 'update'. > > DELETE: > #if you have a partner object named partner_instance > partner_instance.delete() > > READ: > What do you mean? > Partner.objects.get(pk = 12) #or whatever In my specific case the partner is stored in the session and it can be updated. When a new partner is created it is stored in the session. There's always an 'actif' partner. > > #or, from the modelform instance, assuming > #something like partner_form = PartnerForm(instance = > partner_instance) > #has happened: > if partner_form.is_valid(): > partner_name = partner_form.cleaned_data['name'] > > I hope this helps. If not, please be more specific. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
