Fix checking mechanism for session attribute

aleksis/apps/maka/schema/shared_secret.py

@@ -25,7 +25,7 @@ class SharedSecretObjectType(DjangoObjectType):
 
     @classmethod
     def get_queryset(cls, queryset, info):
-        if not info.context.session["maka_shared_secret_correct"]:
+        if not info.context.session.get("maka_shared_secret_correct"):
             raise PermissionDenied()
 
         return super().get_queryset(queryset, info)
@@ -40,7 +40,7 @@ class SharedSecretBatchCreateMixin:
 
     @classmethod
     def check_permissions(cls, root, info, input, *args, **kwargs):  # noqa: A002
-        if info.context.session["maka_shared_secret_correct"]:
+        if info.context.session.get("maka_shared_secret_correct"):
             return
 
         raise PermissionDenied()
@@ -54,7 +54,7 @@ class SharedSecretBatchPatchMixin:
 
     @classmethod
     def check_permissions(cls, root, info, input, *args, **kwargs):  # noqa: A002
-        if info.context.session["maka_shared_secret_correct"]:
+        if info.context.session.get("maka_shared_secret_correct"):
             return
 
         raise PermissionDenied()
@@ -68,7 +68,7 @@ class SharedSecretBatchDeleteMixin:
 
     @classmethod
     def check_permissions(cls, root, info, input, *args, **kwargs):  # noqa: A002
-        if info.context.session["maka_shared_secret_correct"]:
+        if info.context.session.get("maka_shared_secret_correct"):
             return
 
         raise PermissionDenied()