1 files changed, 40 insertions, 0 deletions
diff --git a/app/graphql/mutations/boards/lists/base_update.rb b/app/graphql/mutations/boards/lists/base_update.rb
new file mode 100644
index 00000000000..b06cb3b1e32
--- /dev/null
+++ b/app/graphql/mutations/boards/lists/base_update.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+module Mutations
+  module Boards
+    module Lists
+      class BaseUpdate < BaseMutation
+        argument :position, GraphQL::INT_TYPE,
+                  required: false,
+                  description: 'Position of list within the board.'
+
+        argument :collapsed, GraphQL::BOOLEAN_TYPE,
+                  required: false,
+                  description: 'Indicates if the list is collapsed for this user.'
+
+        def resolve(list: nil, **args)
+          if list.nil? || !can_read_list?(list)
+            raise_resource_not_available_error!
+          end
+
+          update_result = update_list(list, args)
+
+          {
+            list: update_result.payload[:list],
+            errors: update_result.errors
+          }
+        end
+
+        private
+
+        def update_list(list, args)
+          raise NotImplementedError
+        end
+
+        def can_read_list?(list)
+          raise NotImplementedError
+        end
+      end
+    end
+  end
+end