Update moved service desk issues notifications

Allows service desk emails to be received at the new moved issue.

app/models/issue.rb

@@ -44,6 +44,8 @@ class Issue < ApplicationRecord
   has_many :assignees, class_name: "User", through: :issue_assignees
   has_many :zoom_meetings
   has_many :user_mentions, class_name: "IssueUserMention", dependent: :delete_all # rubocop:disable Cop/ActiveRecordDependent
+  has_many :sent_notifications, as: :noteable
+
   has_one :sentry_issue
 
   accepts_nested_attributes_for :sentry_issue

changelogs/unreleased/issue_11391.yml

+---
+title: Update moved service desk issues notifications
+merge_request: 25640
+author:
+type: added

ee/app/models/ee/issue.rb

@@ -161,6 +161,10 @@ module EE
       IssueLink.inverse_link_type(type)
     end
 
+    def from_service_desk?
+      author.id == ::User.support_bot.id
+    end
+
     class_methods do
       extend ::Gitlab::Utils::Override
 

ee/app/services/ee/issues/move_service.rb

@@ -5,6 +5,17 @@ module EE
     module MoveService
       extend ::Gitlab::Utils::Override
 
+      override :execute
+      def execute(issue, target_project)
+        super
+
+        # Updates old issue sent notifications allowing
+        # to receive service desk emails on the new moved issue.
+        update_service_desk_sent_notifications
+
+        new_entity
+      end
+
       override :update_old_entity
       def update_old_entity
         rewrite_epic_issue
@@ -14,6 +25,13 @@ module EE
 
       private
 
+      def update_service_desk_sent_notifications
+        return unless original_entity.from_service_desk?
+
+        original_entity
+          .sent_notifications.update_all(project_id: new_entity.project_id, noteable_id: new_entity.id)
+      end
+
       def rewrite_epic_issue
         return unless epic_issue = original_entity.epic_issue
         return unless can?(current_user, :update_epic, epic_issue.epic.group)

ee/spec/models/issue_spec.rb

@@ -615,4 +615,20 @@ describe Issue do
   end
 
   it_behaves_like 'having health status'
+
+  describe '#service_desk?' do
+    subject { issue.from_service_desk? }
+
+    context 'when issue author is support bot' do
+      let(:issue) { create(:issue, author: ::User.support_bot) }
+
+      it { is_expected.to be_truthy }
+    end
+
+    context 'when issue author is not support bot' do
+      let(:issue) { create(:issue) }
+
+      it { is_expected.to be_falsey }
+    end
+  end
 end

ee/spec/services/ee/issues/move_service_spec.rb

@@ -107,4 +107,47 @@ describe Issues::MoveService do
       end
     end
   end
+
+  context 'updating sent notifications' do
+    let!(:old_issue_notification_1) { create(:sent_notification, project: old_issue.project, noteable: old_issue) }
+    let!(:old_issue_notification_2) { create(:sent_notification, project: old_issue.project, noteable: old_issue) }
+    let!(:other_issue_notification) { create(:sent_notification, project: old_issue.project) }
+
+    context 'when issue is from service desk' do
+      before do
+        allow(old_issue).to receive(:from_service_desk?).and_return(true)
+      end
+
+      it 'updates moved issue sent notifications' do
+        new_issue = move_service.execute(old_issue, new_project)
+
+        old_issue_notification_1.reload
+        old_issue_notification_2.reload
+        expect(old_issue_notification_1.project_id).to eq(new_issue.project_id)
+        expect(old_issue_notification_1.noteable_id).to eq(new_issue.id)
+        expect(old_issue_notification_2.project_id).to eq(new_issue.project_id)
+        expect(old_issue_notification_2.noteable_id).to eq(new_issue.id)
+      end
+
+      it 'does not update other issues sent notifications' do
+        expect do
+          move_service.execute(old_issue, new_project)
+          other_issue_notification.reload
+        end.not_to change { other_issue_notification.noteable_id }
+      end
+    end
+
+    context 'when issue is not from service desk' do
+      it 'does not update sent notifications' do
+        move_service.execute(old_issue, new_project)
+
+        old_issue_notification_1.reload
+        old_issue_notification_2.reload
+        expect(old_issue_notification_1.project_id).to eq(old_issue.project_id)
+        expect(old_issue_notification_1.noteable_id).to eq(old_issue.id)
+        expect(old_issue_notification_2.project_id).to eq(old_issue.project_id)
+        expect(old_issue_notification_2.noteable_id).to eq(old_issue.id)
+      end
+    end
+  end
 end

lib/gitlab/import_export/project/import_export.yml

@@ -188,6 +188,7 @@ excluded_attributes:
   issues:
     - :milestone_id
     - :moved_to_id
+    - :sent_notifications
     - :state_id
     - :duplicated_to_id
     - :promoted_to_epic_id

spec/lib/gitlab/import_export/all_models.yml

@@ -10,6 +10,7 @@ issues:
 - resource_label_events
 - resource_weight_events
 - resource_milestone_events
+- sent_notifications
 - sentry_issue
 - label_links
 - labels