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-rw-r--r--app/workers/merge_requests/assignees_change_worker.rb26
1 files changed, 26 insertions, 0 deletions
diff --git a/app/workers/merge_requests/assignees_change_worker.rb b/app/workers/merge_requests/assignees_change_worker.rb
new file mode 100644
index 00000000000..9865563e357
--- /dev/null
+++ b/app/workers/merge_requests/assignees_change_worker.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+class MergeRequests::AssigneesChangeWorker
+ include ApplicationWorker
+
+ feature_category :source_code_management
+ urgency :high
+ deduplicate :until_executed
+ idempotent!
+
+ def perform(merge_request_id, user_id, old_assignee_ids)
+ merge_request = MergeRequest.find(merge_request_id)
+ current_user = User.find(user_id)
+
+ # if a user was added and then removed, or removed and then added
+ # while waiting for this job to run, assume that nothing happened.
+ users = User.id_in(old_assignee_ids - merge_request.assignee_ids)
+
+ return if users.blank?
+
+ ::MergeRequests::HandleAssigneesChangeService
+ .new(merge_request.target_project, current_user)
+ .execute(merge_request, users, execute_hooks: true)
+ rescue ActiveRecord::RecordNotFound
+ end
+end