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I have implemented the logic of adding users to the 'friend list' from the whole list of users.

models.py

class VendorList(models.Model):
    users = models.ManyToManyField(User)
    current_user = models.ForeignKey(User, related_name='owner', on_delete=models.SET_NULL, null=True)

    @classmethod
    def add_vendor(cls, current_user, new_vendor):
        vendor, created = cls.objects.get_or_create(
            current_user=current_user
        )
        vendor.users.add(new_vendor)

    @classmethod
    def remove_vendor(cls, current_user, new_vendor):
        vendor, created = cls.objects.get_or_create(
            current_user=current_user
        )
        vendor.users.remove(new_vendor)

views.py

class VendorListView(TemplateView):
    template_name = 'event/vendor_list.html'

    def get(self, request):
        #form = EventItemModelForm()
        users = User.objects.exclude(id=request.user.id)
        vendor = VendorList.objects.get(current_user=request.user)
        vendors = vendor.users.all()

        args = {
            #'form': form, 
            'users': users, 'vendors': vendors
        }
        return render(request, self.template_name, args)

def change_vendor_list(request, operation, pk):
    vendor = User.objects.get(pk=pk)
    if operation == 'add':
        VendorList.add_vendor(request.user, vendor)
    elif operation == 'remove':
        VendorList.remove_vendor(request.user, vendor)
    return redirect('/vendors/')

It works and provides the list of all users whom I can add to the list. However, I need to filter this 'whole' list and display only users who have is_vendor attribute (similar to is_staff). Where should I filter users, in models or views? I have tried

vendors = vendor.users.filter(is_vendor=True)

which doesn't work.

Azamat Uzbekov
  • 150
  • 12

1 Answers1

0

I find out that there is a list of available choices for filtering. Instead of filtering is_vendor I need to use vendor like this:

vendors = vendor.users.filter(vendor=True)
Azamat Uzbekov
  • 150
  • 12