Add mixin for permission checking on GraphQL patch mutations

aleksis/core/schema/base.py

@@ -85,6 +85,14 @@ class PermissionBatchPatchMixin:
         # TODO: Check PERMISSIONS (or rules)
         return True
 
+class PermissionPatchMixin:
+    class Meta:
+        login_required = True
+
+    @classmethod
+    def check_permissions(cls, root, info, input, id, obj):
+        # TODO: Check PERMISSIONS (or rules)
+        return True