Thanks for tip tim.
Actually I have noticed a weird thing. Hope you can explain why it happened:
Initially, I had installed south. when I created a fresh sqlite database,
the module that I created always came separate form others. That is
.manage.py syncdb resulted in
Not synced (use migrations):
- userpics
Then after migrate the database was created.
Then I disabled south module and started with a fresh database (with
unique=False in the model) and I saw taht the error is gone. Now I can
upload multiple images. How is it so? What could be wrong with the module
that south treated it separately?
Thanks,
Hannes
On Wednesday, November 20, 2013 1:36:14 AM UTC+1, tim wrote:
>
> If you first run syncdb with the UserPic.user field unique=True, it's not
> enough just to change unique=False. You'll also need to remove the database
> unique constraint. Do you have the problem on a fresh syncdb if
> unique=False? If so, it would be helpful to include the full traceback of
> the error.
>
> On Tuesday, November 19, 2013 4:34:35 PM UTC-5, HannesP wrote:
>>
>> I'm Django noob so please bear with me. I am trying to make a simple
>> gallery for usres so that they can upload pics to their profile. Here are
>> the relevant parts:
>>
>> models.py
>>
>> def get_uplaod_file_name(instance,filename):
>> return 'uploaded_files/%s_%s' % (str(time()).replace('.','_'), filename)
>> class UserPic(models.Model):
>> user = models.ForeignKey(User, unique=False)
>> picfile = models.FileField(upload_to=get_uplaod_file_name)
>>
>> @models.permalink
>> def get_absolute_url(self):
>> return ('view_pirate', None, {'user': self.account.user})
>>
>> def __unicode__(self):
>> return unicode(self.picfile.name)
>>
>> views.py
>>
>> @login_requireddef list(request):
>> # Handle file upload
>> if request.method == 'POST':
>> picform = PicForm(request.POST, request.FILES)
>> if picform.is_valid():
>>
>> newpic = UserPic(picfile = request.FILES['picfile'])
>> newpic = picform.save(commit=False)
>> newpic.user = request.user
>> newpic.save()
>> message = "file %s is uploaded" % newpic
>> userpics = UserPic.objects.all()
>>
>> return render_to_response('userpics/listpics.html',
>> {'userpics': userpics, 'picform':
>> picform},
>>
>> context_instance=RequestContext(request)
>> )
>>
>>
>> else:
>> picform = PicForm() # A empty, unbound form
>>
>>
>> userpics = UserPic.objects.all()
>>
>>
>> return render_to_response(
>> 'userpics/listpics.html',
>> {'userpics': userpics, 'picform': picform},
>> context_instance=RequestContext(request)
>> )
>>
>> The app works fine for one image upload but the problem is that whenever
>> a user tries to upload a second image, Django gives this error:
>>
>> column user_id is not unique
>>
>> I have also tried 'unique= True on a fresh database in the model, but
>> still got stocked at this problem. Appreciate your hints.
>>
>> Thanks
>>
>
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