id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
31551	TypeError: _bulk_create() got an unexpected keyword argument 'ignore_conflicts'.	Shivam Chaurasia	nobody	"Code:

I get error in using .add() and .set() functions with many to many keys in models.
I rolled back to Django-2.2.12 and this issue was gone. 

{{{
class GroupSerializer(serializers.ModelSerializer):
    permissions = PermissionSerializerGroup(many=True, required=False)

    class Meta:
        model = Group
        fields = ('id', 'name', 'permissions')
        extra_kwargs = {
            'name': {'validators': []},
        }

    def create(self, validated_data):
        print(validated_data)
        permissions_data = validated_data.pop(""permissions"")
        obj, group = Group.objects.update_or_create(name=validated_data[""name""])
        obj.permissions.clear()
        for permission in permissions_data:
            per = Permission.objects.get(codename=permission[""codename""])
            obj.permissions.add(per)
        obj.save()
        return obj
}}}


Traceback:
{{{
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/core/handlers/exception.py"", line 34, in inner
    response = get_response(request)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/core/handlers/base.py"", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/core/handlers/base.py"", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/contrib/admin/options.py"", line 607, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/utils/decorators.py"", line 130, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/views/decorators/cache.py"", line 44, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/contrib/admin/sites.py"", line 231, in inner
    return view(request, *args, **kwargs)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/contrib/admin/options.py"", line 1638, in add_view
    return self.changeform_view(request, None, form_url, extra_context)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/utils/decorators.py"", line 43, in _wrapper
    return bound_method(*args, **kwargs)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/utils/decorators.py"", line 130, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/contrib/admin/options.py"", line 1522, in changeform_view
    return self._changeform_view(request, object_id, form_url, extra_context)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/contrib/admin/options.py"", line 1566, in _changeform_view
    self.save_related(request, form, formsets, not add)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/contrib/admin/options.py"", line 1107, in save_related
    form.save_m2m()
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/forms/models.py"", line 442, in _save_m2m
    f.save_form_data(self.instance, cleaned_data[f.name])
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/db/models/fields/related.py"", line 1618, in save_form_data
    getattr(instance, self.attname).set(data)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/db/models/fields/related_descriptors.py"", line 1008, in set
    self.add(*new_objs, through_defaults=through_defaults)
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/db/models/fields/related_descriptors.py"", line 946, in add
    through_defaults=through_defaults,
  File ""/home/suman/Desktop/suman1234/myvenv/lib/python3.6/site-packages/django/db/models/fields/related_descriptors.py"", line 1129, in _add_items
    ], ignore_conflicts=True)
TypeError: _bulk_create() got an unexpected keyword argument 'ignore_conflicts'
}}}
"	Bug	closed	Database layer (models, ORM)	3.1	Normal	invalid	Many-to-many Fields		Unreviewed	0	0	0	0	0	0