User linear version UserGroupNotificationSettingsFinder#execute

In this commit we're removing the ff
`linear_user_group_notification_settings_finder_ancestors_scopes` and
enabling the linear version of
`UserGroupNotificationSettingsFinder#execute`.

Changelog: changed

app/finders/user_group_notification_settings_finder.rb

@@ -7,15 +7,7 @@ class UserGroupNotificationSettingsFinder
   end
 
   def execute
-    # rubocop: disable CodeReuse/ActiveRecord
-    selected_groups = Group.where(id: groups.select(:id))
-    groups_with_ancestors = if Feature.enabled?(:linear_user_group_notification_settings_finder_ancestors_scopes, user, default_enabled: :yaml)
-                              selected_groups.self_and_ancestors
-                            else
-                              Gitlab::ObjectHierarchy.new(selected_groups).base_and_ancestors
-                            end
-    # rubocop: enable CodeReuse/ActiveRecord
-
+    groups_with_ancestors = groups.self_and_ancestors
     @loaded_groups_with_ancestors = groups_with_ancestors.index_by(&:id)
     @loaded_notification_settings = user.notification_settings_for_groups(groups_with_ancestors).preload_source_route.index_by(&:source_id)
 

config/feature_flags/development/linear_user_group_notification_settings_finder_ancestors_scopes.yml

----
-name: linear_user_group_notification_settings_finder_ancestors_scopes
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/74606
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/345792
-milestone: '14.6'
-type: development
-group: group::access
-default_enabled: false

spec/finders/user_group_notification_settings_finder_spec.rb

@@ -11,167 +11,155 @@ RSpec.describe UserGroupNotificationSettingsFinder do
     subject.map(&proc).uniq
   end
 
-  shared_examples 'user group notifications settings tests' do
-    context 'when the groups have no existing notification settings' do
-      context 'when the groups have no ancestors' do
-        let_it_be(:groups) { create_list(:group, 3) }
-
-        it 'will be a default Global notification setting', :aggregate_failures do
-          expect(subject.count).to eq(3)
-          expect(attributes(&:notification_email)).to match_array([nil])
-          expect(attributes(&:level)).to match_array(['global'])
-        end
+  context 'when the groups have no existing notification settings' do
+    context 'when the groups have no ancestors' do
+      let_it_be(:groups) { create_list(:group, 3) }
+
+      it 'will be a default Global notification setting', :aggregate_failures do
+        expect(subject.count).to eq(3)
+        expect(attributes(&:notification_email)).to match_array([nil])
+        expect(attributes(&:level)).to match_array(['global'])
       end
+    end
 
-      context 'when the groups have ancestors' do
-        context 'when an ancestor has a level other than Global' do
-          let_it_be(:ancestor_a) { create(:group) }
-          let_it_be(:group_a) { create(:group, parent: ancestor_a) }
-          let_it_be(:ancestor_b) { create(:group) }
-          let_it_be(:group_b) { create(:group, parent: ancestor_b) }
-          let_it_be(:email) { create(:email, :confirmed, email: 'ancestor@example.com', user: user) }
-
-          let_it_be(:groups) { [group_a, group_b] }
+    context 'when the groups have ancestors' do
+      context 'when an ancestor has a level other than Global' do
+        let_it_be(:ancestor_a) { create(:group) }
+        let_it_be(:group_a) { create(:group, parent: ancestor_a) }
+        let_it_be(:ancestor_b) { create(:group) }
+        let_it_be(:group_b) { create(:group, parent: ancestor_b) }
+        let_it_be(:email) { create(:email, :confirmed, email: 'ancestor@example.com', user: user) }
 
-          before do
-            create(:notification_setting, user: user, source: ancestor_a, level: 'participating', notification_email: email.email)
-            create(:notification_setting, user: user, source: ancestor_b, level: 'participating', notification_email: email.email)
-          end
+        let_it_be(:groups) { [group_a, group_b] }
 
-          it 'has the same level set' do
-            expect(attributes(&:level)).to match_array(['participating'])
-          end
+        before do
+          create(:notification_setting, user: user, source: ancestor_a, level: 'participating', notification_email: email.email)
+          create(:notification_setting, user: user, source: ancestor_b, level: 'participating', notification_email: email.email)
+        end
 
-          it 'has the same email set' do
-            expect(attributes(&:notification_email)).to match_array(['ancestor@example.com'])
-          end
+        it 'has the same level set' do
+          expect(attributes(&:level)).to match_array(['participating'])
+        end
 
-          it 'only returns the two queried groups' do
-            expect(subject.count).to eq(2)
-          end
+        it 'has the same email set' do
+          expect(attributes(&:notification_email)).to match_array(['ancestor@example.com'])
         end
 
-        context 'when an ancestor has a Global level but has an email set' do
-          let_it_be(:grand_ancestor) { create(:group) }
-          let_it_be(:ancestor) { create(:group, parent: grand_ancestor) }
-          let_it_be(:group) { create(:group, parent: ancestor) }
-          let_it_be(:ancestor_email) { create(:email, :confirmed, email: 'ancestor@example.com', user: user) }
-          let_it_be(:grand_email) { create(:email, :confirmed, email: 'grand@example.com', user: user) }
-
-          let_it_be(:groups) { [group] }
-
-          before do
-            create(:notification_setting, user: user, source: grand_ancestor, level: 'participating', notification_email: grand_email.email)
-            create(:notification_setting, user: user, source: ancestor, level: 'global', notification_email: ancestor_email.email)
-          end
-
-          it 'has the same email and level set', :aggregate_failures do
-            expect(subject.count).to eq(1)
-            expect(attributes(&:level)).to match_array(['global'])
-            expect(attributes(&:notification_email)).to match_array(['ancestor@example.com'])
-          end
+        it 'only returns the two queried groups' do
+          expect(subject.count).to eq(2)
         end
+      end
 
-        context 'when the group has parent_id set but that does not belong to any group' do
-          let_it_be(:group) { create(:group) }
-          let_it_be(:groups) { [group] }
+      context 'when an ancestor has a Global level but has an email set' do
+        let_it_be(:grand_ancestor) { create(:group) }
+        let_it_be(:ancestor) { create(:group, parent: grand_ancestor) }
+        let_it_be(:group) { create(:group, parent: ancestor) }
+        let_it_be(:ancestor_email) { create(:email, :confirmed, email: 'ancestor@example.com', user: user) }
+        let_it_be(:grand_email) { create(:email, :confirmed, email: 'grand@example.com', user: user) }
 
-          before do
-            # Let's set a parent_id for a group that definitely doesn't exist
-            group.update_columns(parent_id: 19283746)
-          end
+        let_it_be(:groups) { [group] }
 
-          it 'returns a default Global notification setting' do
-            expect(subject.count).to eq(1)
-            expect(attributes(&:level)).to match_array(['global'])
-            expect(attributes(&:notification_email)).to match_array([nil])
-          end
+        before do
+          create(:notification_setting, user: user, source: grand_ancestor, level: 'participating', notification_email: grand_email.email)
+          create(:notification_setting, user: user, source: ancestor, level: 'global', notification_email: ancestor_email.email)
         end
 
-        context 'when the group has a private parent' do
-          let_it_be(:ancestor) { create(:group, :private) }
-          let_it_be(:group) { create(:group, :private, parent: ancestor) }
-          let_it_be(:ancestor_email) { create(:email, :confirmed, email: 'ancestor@example.com', user: user) }
-          let_it_be(:groups) { [group] }
-
-          before do
-            group.add_reporter(user)
-            # Adding the user creates a NotificationSetting, so we remove it here
-            user.notification_settings.where(source: group).delete_all
-
-            create(:notification_setting, user: user, source: ancestor, level: 'participating', notification_email: ancestor_email.email)
-          end
-
-          it 'still inherits the notification settings' do
-            expect(subject.count).to eq(1)
-            expect(attributes(&:level)).to match_array(['participating'])
-            expect(attributes(&:notification_email)).to match_array([ancestor_email.email])
-          end
+        it 'has the same email and level set', :aggregate_failures do
+          expect(subject.count).to eq(1)
+          expect(attributes(&:level)).to match_array(['global'])
+          expect(attributes(&:notification_email)).to match_array(['ancestor@example.com'])
         end
+      end
 
-        it 'does not cause an N+1', :aggregate_failures do
-          parent = create(:group)
-          child = create(:group, parent: parent)
-
-          control = ActiveRecord::QueryRecorder.new do
-            described_class.new(user, Group.where(id: child.id)).execute
-          end
-
-          other_parent = create(:group)
-          other_children = create_list(:group, 2, parent: other_parent)
-
-          result = nil
+      context 'when the group has parent_id set but that does not belong to any group' do
+        let_it_be(:group) { create(:group) }
+        let_it_be(:groups) { [group] }
 
-          expect do
-            result = described_class.new(user, Group.where(id: other_children.append(child).map(&:id))).execute
-          end.not_to exceed_query_limit(control)
+        before do
+          # Let's set a parent_id for a group that definitely doesn't exist
+          group.update_columns(parent_id: 19283746)
+        end
 
-          expect(result.count).to eq(3)
+        it 'returns a default Global notification setting' do
+          expect(subject.count).to eq(1)
+          expect(attributes(&:level)).to match_array(['global'])
+          expect(attributes(&:notification_email)).to match_array([nil])
         end
       end
-    end
 
-    context 'preloading `emails_disabled`' do
-      let_it_be(:root_group) { create(:group) }
-      let_it_be(:sub_group) { create(:group, parent: root_group) }
-      let_it_be(:sub_sub_group) { create(:group, parent: sub_group) }
+      context 'when the group has a private parent' do
+        let_it_be(:ancestor) { create(:group, :private) }
+        let_it_be(:group) { create(:group, :private, parent: ancestor) }
+        let_it_be(:ancestor_email) { create(:email, :confirmed, email: 'ancestor@example.com', user: user) }
+        let_it_be(:groups) { [group] }
 
-      let_it_be(:another_root_group) { create(:group) }
-      let_it_be(:sub_group_with_emails_disabled) { create(:group, emails_disabled: true, parent: another_root_group) }
-      let_it_be(:another_sub_sub_group) { create(:group, parent: sub_group_with_emails_disabled) }
+        before do
+          group.add_reporter(user)
+          # Adding the user creates a NotificationSetting, so we remove it here
+          user.notification_settings.where(source: group).delete_all
 
-      let_it_be(:root_group_with_emails_disabled) { create(:group, emails_disabled: true) }
-      let_it_be(:group) { create(:group, parent: root_group_with_emails_disabled) }
-
-      let(:groups) { Group.where(id: [sub_sub_group, another_sub_sub_group, group]) }
+          create(:notification_setting, user: user, source: ancestor, level: 'participating', notification_email: ancestor_email.email)
+        end
 
-      before do
-        described_class.new(user, groups).execute
+        it 'still inherits the notification settings' do
+          expect(subject.count).to eq(1)
+          expect(attributes(&:level)).to match_array(['participating'])
+          expect(attributes(&:notification_email)).to match_array([ancestor_email.email])
+        end
       end
 
-      it 'preloads the `group.emails_disabled` method' do
-        recorder = ActiveRecord::QueryRecorder.new do
-          groups.each(&:emails_disabled?)
+      it 'does not cause an N+1', :aggregate_failures do
+        parent = create(:group)
+        child = create(:group, parent: parent)
+
+        control = ActiveRecord::QueryRecorder.new do
+          described_class.new(user, Group.where(id: child.id)).execute
         end
 
-        expect(recorder.count).to eq(0)
-      end
+        other_parent = create(:group)
+        other_children = create_list(:group, 2, parent: other_parent)
 
-      it 'preloads the `group.emails_disabled` method correctly' do
-        groups.each do |group|
-          expect(group.emails_disabled?).to eq(Group.find(group.id).emails_disabled?) # compare the memoized and the freshly loaded value
-        end
+        result = nil
+
+        expect do
+          result = described_class.new(user, Group.where(id: other_children.append(child).map(&:id))).execute
+        end.not_to exceed_query_limit(control)
+
+        expect(result.count).to eq(3)
       end
     end
   end
 
-  it_behaves_like 'user group notifications settings tests'
+  context 'preloading `emails_disabled`' do
+    let_it_be(:root_group) { create(:group) }
+    let_it_be(:sub_group) { create(:group, parent: root_group) }
+    let_it_be(:sub_sub_group) { create(:group, parent: sub_group) }
+
+    let_it_be(:another_root_group) { create(:group) }
+    let_it_be(:sub_group_with_emails_disabled) { create(:group, emails_disabled: true, parent: another_root_group) }
+    let_it_be(:another_sub_sub_group) { create(:group, parent: sub_group_with_emails_disabled) }
+
+    let_it_be(:root_group_with_emails_disabled) { create(:group, emails_disabled: true) }
+    let_it_be(:group) { create(:group, parent: root_group_with_emails_disabled) }
+
+    let(:groups) { Group.where(id: [sub_sub_group, another_sub_sub_group, group]) }
 
-  context 'when feature flag :linear_user_group_notification_settings_finder_ancestors_scopes is disabled' do
     before do
-      stub_feature_flags(linear_user_group_notification_settings_finder_ancestors_scopes: false)
+      described_class.new(user, groups).execute
+    end
+
+    it 'preloads the `group.emails_disabled` method' do
+      recorder = ActiveRecord::QueryRecorder.new do
+        groups.each(&:emails_disabled?)
+      end
+
+      expect(recorder.count).to eq(0)
     end
 
-    it_behaves_like 'user group notifications settings tests'
+    it 'preloads the `group.emails_disabled` method correctly' do
+      groups.each do |group|
+        expect(group.emails_disabled?).to eq(Group.find(group.id).emails_disabled?) # compare the memoized and the freshly loaded value
+      end
+    end
   end
 end