Resolve "GraphQL error "DummyPerson needs a primary key""

Closes #865 (closed)

aleksis/core/schema/person.py

@@ -62,7 +62,7 @@ class PersonType(DjangoObjectType):
     secondary_image_url = graphene.String()
 
     notifications = graphene.List(NotificationType)
-    unread_notifications_count = graphene.Int()
+    unread_notifications_count = graphene.Int(required=False)
 
     is_dummy = graphene.Boolean()
     preferences = graphene.Field(PersonPreferencesType)
@@ -150,7 +150,11 @@ class PersonType(DjangoObjectType):
         return root.user.id if root.user else None
 
     def resolve_unread_notifications_count(root, info, **kwargs):  # noqa
-        return root.unread_notifications_count
+        if root.pk and has_person(info.context) and root == info.context.user.person:
+            return root.unread_notifications_count
+        elif root.pk:
+            return 0
+        return None
 
     def resolve_photo(root, info, **kwargs):
         if info.context.user.has_perm("core.view_photo_rule", root):
@@ -199,11 +203,11 @@ class PersonType(DjangoObjectType):
         return root.is_dummy if hasattr(root, "is_dummy") else False
 
     def resolve_notifications(root: Person, info, **kwargs):
-        if has_person(info.context.user) and info.context.user.person == root:
+        if root.pk and has_person(info.context) and root == info.context.user.person:
             return root.notifications.filter(send_at__lte=timezone.now()).order_by(
                 "read", "-created"
             )
-        raise PermissionDenied()
+        return []
 
     def resolve_can_edit_person(root, info, **kwargs):  # noqa
         return info.context.user.has_perm("core.edit_person_rule", root)