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-rw-r--r--app/serializers/merge_request_metrics_helper.rb28
1 files changed, 28 insertions, 0 deletions
diff --git a/app/serializers/merge_request_metrics_helper.rb b/app/serializers/merge_request_metrics_helper.rb
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index 00000000000..fb1769d0aa6
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+++ b/app/serializers/merge_request_metrics_helper.rb
@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+module MergeRequestMetricsHelper
+ # There are cases where where metrics object doesn't exist and it needs to be rebuilt.
+ # TODO: Once https://gitlab.com/gitlab-org/gitlab/-/issues/342508 has been resolved and
+ # all merge requests have metrics we can remove this helper method.
+ def build_metrics(merge_request)
+ # There's no need to query and serialize metrics data for merge requests that are not
+ # merged or closed.
+ return unless merge_request.merged? || merge_request.closed?
+ return merge_request.metrics if merge_request.merged? && merge_request.metrics&.merged_by_id
+ return merge_request.metrics if merge_request.closed? && merge_request.metrics&.latest_closed_by_id
+
+ build_metrics_from_events(merge_request)
+ end
+
+ private
+
+ def build_metrics_from_events(merge_request)
+ closed_event = merge_request.closed_event
+ merge_event = merge_request.merge_event
+
+ MergeRequest::Metrics.new(latest_closed_at: closed_event&.updated_at,
+ latest_closed_by: closed_event&.author,
+ merged_at: merge_event&.updated_at,
+ merged_by: merge_event&.author)
+ end
+end