From 57e3e86eb1223b955c7ad1ca3d562118e169937f Mon Sep 17 00:00:00 2001
From: Mardanov Timur Rustemovich <timurmardanov97@gmail.com>
Date: Thu, 29 Nov 2018 17:32:55 +0300
Subject: [PATCH] fixed parent system

---
 graphene_django/fields.py        | 8 ++------
 graphene_django/filter/fields.py | 8 +++-----
 graphene_django/utils.py         | 8 ++++++++
 3 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/graphene_django/fields.py b/graphene_django/fields.py
index 52aac01..172fa84 100644
--- a/graphene_django/fields.py
+++ b/graphene_django/fields.py
@@ -10,7 +10,7 @@ from graphene.relay import ConnectionField, PageInfo
 from graphql_relay.connection.arrayconnection import connection_from_list_slice
 
 from .settings import graphene_settings
-from .utils import maybe_queryset
+from .utils import maybe_queryset, is_parent_set
 
 
 class DjangoListField(Field):
@@ -152,11 +152,7 @@ class DjangoConnectionField(ConnectionField):
         _parent = args.get('know_parent', False)
 
         if not _parent:
-            if hasattr(info.parent_type._meta, 'know_parent_fields'):
-                options = info.parent_type._meta.know_parent_fields
-                assert isinstance(options, (list, tuple)), \
-                    "know_parent_fields should be list or tuple"
-                _parent = info.field_name in options
+            _parent = is_parent_set(info)
 
         def new_resolver(root, info, **kwargs):
             qs = resolver(root, info, **kwargs)
diff --git a/graphene_django/filter/fields.py b/graphene_django/filter/fields.py
index 7034c7f..ca48eaa 100644
--- a/graphene_django/filter/fields.py
+++ b/graphene_django/filter/fields.py
@@ -6,6 +6,8 @@ from ..fields import DjangoConnectionField
 from .utils import get_filterset_class, get_filtering_args_from_filterset, \
     make_qs
 
+from ..utils import is_parent_set
+
 
 class DjangoFilterConnectionField(DjangoConnectionField):
     def __init__(
@@ -109,11 +111,7 @@ class DjangoFilterConnectionField(DjangoConnectionField):
         _parent = args.get('know_parent', False)
 
         if not _parent:
-            if hasattr(info.parent_type._meta, 'know_parent_fields'):
-                options = info.parent_type._meta.know_parent_fields
-                assert isinstance(options, (list, tuple)), \
-                    "know_parent_fields should be list or tuple"
-                _parent = info.field_name in options
+            _parent = is_parent_set(info)
 
         def new_resolver(root, info, **args):
             filters = dict(filter(lambda x: '__' in x[0], args.items()))
diff --git a/graphene_django/utils.py b/graphene_django/utils.py
index fce3526..830af03 100644
--- a/graphene_django/utils.py
+++ b/graphene_django/utils.py
@@ -8,6 +8,14 @@ from neomodel import (
 
 # from graphene.utils import LazyList
 
+def is_parent_set(info):
+    if hasattr(info.parent_type._meta.graphene_type, 'know_parent_fields'):
+        options = info.parent_type.graphene_type._meta.know_parent_fields
+        assert isinstance(options, (list, tuple)), \
+            "know_parent_fields should be list or tuple"
+        return info.field_name in options
+    return False
+
 
 class LazyList(object):
     pass