1 files changed, 52 insertions, 0 deletions
diff --git a/app/graphql/mutations/boards/lists/update.rb b/app/graphql/mutations/boards/lists/update.rb
new file mode 100644
index 00000000000..7efed3058b3
--- /dev/null
+++ b/app/graphql/mutations/boards/lists/update.rb
@@ -0,0 +1,52 @@
+# frozen_string_literal: true
+
+module Mutations
+  module Boards
+    module Lists
+      class Update < BaseMutation
+        graphql_name 'UpdateBoardList'
+
+        argument :list_id, GraphQL::ID_TYPE,
+                  required: true,
+                  loads: Types::BoardListType,
+                  description: 'Global ID of the list.'
+
+        argument :position, GraphQL::INT_TYPE,
+                  required: false,
+                  description: 'Position of list within the board'
+
+        argument :collapsed, GraphQL::BOOLEAN_TYPE,
+                  required: false,
+                  description: 'Indicates if list is collapsed for this user'
+
+        field :list,
+              Types::BoardListType,
+              null: true,
+              description: 'Mutated list'
+
+        def resolve(list: nil, **args)
+          raise_resource_not_available_error! unless can_read_list?(list)
+          update_result = update_list(list, args)
+
+          {
+            list: update_result[:list],
+            errors: list.errors.full_messages
+          }
+        end
+
+        private
+
+        def update_list(list, args)
+          service = ::Boards::Lists::UpdateService.new(list.board, current_user, args)
+          service.execute(list)
+        end
+
+        def can_read_list?(list)
+          return false unless list.present?
+
+          Ability.allowed?(current_user, :read_list, list.board)
+        end
+      end
+    end
+  end
+end