I think this is the same error I'm seeing in
http://code.djangoproject.com/ticket/9076.
It involves getting duplicate pks from the form. I've used the below
workaround in the meantime.
Index: django/forms/models.py
===================================================================
--- django/forms/models.py (revision 8961)
+++ django/forms/models.py (working copy)
@@ -336,7 +336,7 @@
def _construct_form(self, i, **kwargs):
if i < self._initial_form_count:
- kwargs['instance'] = self.get_queryset()[i]
+ kwargs['instance'] = list(self.get_queryset())[i]
return super(BaseModelFormSet, self)._construct_form(i,
**kwargs)
def get_queryset(self):
On Sep 14, 9:26 am, Marek Kubica <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I fought against this for the whole day already (with patching Django;
> creating Form and FormSet subclasses etc.) but nothing helped. I want to
> have a Message with multiple translations in my database and the admin
> should display the message and the translations inline.
>
> Now the problem is, that the following works and sometimes saving in the
> admin fails with "Please correct the errors below." and no errors below
> that. When I patched the template to show {{ errors }} I also get this:
>
> Translation with this None already exists.
>
> When I take a look on the errors of the translation formset I get this:
>
> [{'id': [u'Translation with this None already exists.']}, {}]
>
> The only solution this far was creating a new message, copying stuff over
> and deleting the old one.
>
> I'm running the current Django trunk, but this has been broken for quite
> some time.
>
> The relevant files look like this:
>
> admin.py
>
> from sys import maxint
> from django.contrib import admin
> from pointtec.transdigest import models
>
> class TranslationInline(admin.TabularInline):
> model = models.Translation
>
> class MessageAdmin(admin.ModelAdmin):
> ordering = ('text',)
> list_per_page = maxint
> search_fields = ('text',)
> inlines = [TranslationInline]
>
> admin.site.register(models.Message, MessageAdmin)
>
> models.py:
>
> from django.db import models
> from django.conf import settings
> from django.utils.translation import get_language, gettext_lazy as _
>
> languages_available = settings.LANGUAGES
>
> class Message(models.Model):
> """A message which is to translate"""
> text = models.TextField(_('original message'), unique=True)
>
> def __unicode__(self):
> """A nice representation for the user"""
> return self.text
>
> def save(self, *args, **kwargs):
> self.text = self.text.strip()
> super(Message, self).save(*args, **kwargs)
>
> class Translation(models.Model):
> """Translation"""
> message = models.ForeignKey(Message)
> language = models.CharField(_('language'), max_length=5,
> choices=settings.LANGUAGES)
> translation = models.TextField(_('translation'))
>
> def save(self, *args, **kwargs):
> self.translation = self.translation.strip()
> super(Translation, self).save(*args, **kwargs)
>
> def __unicode__(self):
> return u"%s: %s" % (self.language, self.translation)
>
> It would be really nice if someone could show me what I'm doing wrong.
>
> regards,
> Marek
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