3 files changed, 37 insertions, 11 deletions
diff --git a/app/graphql/mutations/merge_requests/create.rb b/app/graphql/mutations/merge_requests/create.rb
index 64fa8417e50..9ac8f70be95 100644
--- a/app/graphql/mutations/merge_requests/create.rb
+++ b/app/graphql/mutations/merge_requests/create.rb
@@ -3,7 +3,7 @@
 module Mutations
   module MergeRequests
     class Create < BaseMutation
-      include ResolvesProject
+      include FindsProject
 
       graphql_name 'MergeRequestCreate'
 
@@ -39,7 +39,7 @@ module Mutations
       authorize :create_merge_request_from
 
       def resolve(project_path:, **attributes)
-        project = authorized_find!(full_path: project_path)
+        project = authorized_find!(project_path)
         params = attributes.merge(author_id: current_user.id)
 
         merge_request = ::MergeRequests::CreateService.new(project, current_user, params).execute
@@ -49,12 +49,6 @@ module Mutations
           errors: errors_on_object(merge_request)
         }
       end
-
-      private
-
-      def find_object(full_path:)
-        resolve_project(full_path: full_path)
-      end
     end
   end
 end
diff --git a/app/graphql/mutations/merge_requests/reviewer_rereview.rb b/app/graphql/mutations/merge_requests/reviewer_rereview.rb
new file mode 100644
index 00000000000..f6f4881654e
--- /dev/null
+++ b/app/graphql/mutations/merge_requests/reviewer_rereview.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+module Mutations
+  module MergeRequests
+    class ReviewerRereview < Base
+      graphql_name 'MergeRequestReviewerRereview'
+
+      argument :user_id, ::Types::GlobalIDType[::User],
+               loads: Types::UserType,
+               required: true,
+               description: <<~DESC
+                            The user ID for the user that has been requested for a new review.
+               DESC
+
+      def resolve(project_path:, iid:, user:)
+        merge_request = authorized_find!(project_path: project_path, iid: iid)
+
+        result = ::MergeRequests::RequestReviewService.new(merge_request.project, current_user).execute(merge_request, user)
+
+        {
+          merge_request: merge_request,
+          errors: Array(result[:message])
+        }
+      end
+    end
+  end
+end
diff --git a/app/graphql/mutations/merge_requests/update.rb b/app/graphql/mutations/merge_requests/update.rb
index 4721ebab41b..6a94d2f37b2 100644
--- a/app/graphql/mutations/merge_requests/update.rb
+++ b/app/graphql/mutations/merge_requests/update.rb
@@ -19,9 +19,14 @@ module Mutations
                required: false,
                description: copy_field_description(Types::MergeRequestType, :description)
 
-      def resolve(args)
-        merge_request = authorized_find!(**args.slice(:project_path, :iid))
-        attributes = args.slice(:title, :description, :target_branch).compact
+      argument :state, ::Types::MergeRequestStateEventEnum,
+               required: false,
+               as: :state_event,
+               description: 'The action to perform to change the state.'
+
+      def resolve(project_path:, iid:, **args)
+        merge_request = authorized_find!(project_path: project_path, iid: iid)
+        attributes = args.compact
 
         ::MergeRequests::UpdateService
           .new(merge_request.project, current_user, attributes)