[FIXED] 'QuerySet' object doesn't support item deletion Error

Issue

I am trying to delete an Item in the QuerySet by Index. I am able to display the items of the QuerySet using print q_set[code_id - 1] but can not delete it using del q_set[code_id - 1]. I want to permanently delete the item and not filter excluding that item.

I am getting this error:

TypeError at /lessons/customcode/5/delete

'QuerySet' object doesn't support item deletion

views.py

...
    def customcode_view(request):
        global q_set
        try:
            u = User.objects.get(username=request.user)
        except:
            return render(request,"login_required.html",{})

        q_set = customcode.objects.filter(user=u)


        if request.method == "POST":
            form = CustomcodeForm(request.POST)
            if form.is_valid():
                cc = form.save(commit=False)
                cc.user = u
                cc.save()
                return HttpResponseRedirect('#BOTTOM')
        else:
            form = CustomcodeForm()

        return render(request, "customcode.html" , {'q_set':q_set,'form':form,})


    def deletecode(request,code_id):
        code_id = int(code_id)
        del q_set[code_id - 1] #this is the problem
        return redirect('customcode_view')

...

models.py

...

    class customcode(models.Model):
        user = models.ForeignKey(User)
        name = models.CharField(blank=False,max_length=250)
        sourcecode = models.TextField(blank=False)

        def __unicode__(self):
            return self.name
...

Solution

To permanently get rid of the entry, you don't want to remove the item from the queryset (which is just a volatile view onto your data), but delete the row from the database:

q_set[code_id - 1].delete()

Hth dtk

Answered By - dtk