From 30fa86084e9d1819f58be4416b3f022fa460014b Mon Sep 17 00:00:00 2001
From: Kuba Misiorny <kuba.misiorny@gmail.com>
Date: Wed, 3 Feb 2021 12:20:49 +0100
Subject: [PATCH] Add ability to pass `execution_context_class` to
 `GraphQLView.as_view()`

Currently when passing `execution_context_class` like this:

```
GraphQLView.as_view(execution_context_class=CustomContext)
```

you get the following error from `View.as_view()`
```
TypeError: GraphQLView() received an invalid keyword 'execution_context_class'. as_view only accepts arguments that are already attributes of the class.
```

this PR fixes the `hasattr` check in `.as_view`.

Fixes: #1072
---
 graphene_django/views.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/graphene_django/views.py b/graphene_django/views.py
index 8341fc4d8..0185bbf9c 100644
--- a/graphene_django/views.py
+++ b/graphene_django/views.py
@@ -84,7 +84,8 @@ class GraphQLView(View):
     pretty = False
     batch = False
     subscription_path = None
-
+    execution_context_class = None
+    
     def __init__(
         self,
         schema=None,