1 files changed, 45 insertions, 0 deletions
diff --git a/app/workers/namespaces/schedule_aggregation_worker.rb b/app/workers/namespaces/schedule_aggregation_worker.rb
new file mode 100644
index 00000000000..a4594b84b13
--- /dev/null
+++ b/app/workers/namespaces/schedule_aggregation_worker.rb
@@ -0,0 +1,45 @@
+# frozen_string_literal: true
+
+module Namespaces
+  class ScheduleAggregationWorker
+    include ApplicationWorker
+
+    queue_namespace :update_namespace_statistics
+
+    def perform(namespace_id)
+      return unless aggregation_schedules_table_exists?
+
+      namespace = Namespace.find(namespace_id)
+      root_ancestor = namespace.root_ancestor
+
+      return unless update_statistics_enabled_for?(root_ancestor) && !root_ancestor.aggregation_scheduled?
+
+      Namespace::AggregationSchedule.safe_find_or_create_by!(namespace_id: root_ancestor.id)
+    rescue ActiveRecord::RecordNotFound
+      log_error(namespace_id)
+    end
+
+    private
+
+    # On db/post_migrate/20180529152628_schedule_to_archive_legacy_traces.rb
+    # traces are archived through build.trace.archive, which in consequence
+    # calls UpdateProjectStatistics#schedule_namespace_statistics_worker.
+    #
+    # The migration and specs fails since NamespaceAggregationSchedule table
+    # does not exist at that point.
+    # https://gitlab.com/gitlab-org/gitlab-ce/issues/50712
+    def aggregation_schedules_table_exists?
+      return true unless Rails.env.test?
+
+      Namespace::AggregationSchedule.table_exists?
+    end
+
+    def log_error(root_ancestor_id)
+      Gitlab::SidekiqLogger.error("Namespace can't be scheduled for aggregation: #{root_ancestor_id} does not exist")
+    end
+
+    def update_statistics_enabled_for?(root_ancestor)
+      Feature.enabled?(:update_statistics_namespace, root_ancestor)
+    end
+  end
+end