Add latest changes from gitlab-org/gitlab@master

1 files changed, 39 insertions, 0 deletions

diff --git a/app/services/resource_events/base_synthetic_notes_builder_service.rb b/app/services/resource_events/base_synthetic_notes_builder_service.rb
new file mode 100644
index 00000000000..1b85ca811a1
--- /dev/null
+++ b/app/services/resource_events/base_synthetic_notes_builder_service.rb
@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+# We store events about issuable label changes and weight changes in a separate
+# table (not as other system notes), but we still want to display notes about
+# label changes and weight changes as classic system notes in UI.  This service
+# generates "synthetic" notes for label event changes.
+
+module ResourceEvents
+  class BaseSyntheticNotesBuilderService
+    include Gitlab::Utils::StrongMemoize
+
+    attr_reader :resource, :current_user, :params
+
+    def initialize(resource, current_user, params = {})
+      @resource = resource
+      @current_user = current_user
+      @params = params
+    end
+
+    def execute
+      synthetic_notes
+    end
+
+    private
+
+    def since_fetch_at(events)
+      return events unless params[:last_fetched_at].present?
+
+      last_fetched_at = Time.at(params.fetch(:last_fetched_at).to_i)
+      events.created_after(last_fetched_at - NotesFinder::FETCH_OVERLAP)
+    end
+
+    def resource_parent
+      strong_memoize(:resource_parent) do
+        resource.project || resource.group
+      end
+    end
+  end
+end