Update Incidents to allow milestones to be used

Add milestones to Incidents in both quick
actions and the sidebar
without adding iterations

app/models/concerns/milestoneable.rb

@@ -51,7 +51,7 @@ module Milestoneable
   # Overridden on EE module
   #
   def supports_milestone?
-    respond_to?(:milestone_id) && !incident?
+    respond_to?(:milestone_id)
   end
 end
 

app/views/shared/issuable/_sidebar.html.haml

@@ -58,7 +58,7 @@
           .selectbox.hide-collapsed
             = f.hidden_field 'milestone_id', value: milestone[:id], id: nil
             = dropdown_tag('Milestone', options: { title: _('Assign milestone'), toggle_class: 'js-milestone-select js-extra-options', filter: true, dropdown_class: 'dropdown-menu-selectable', placeholder: _('Search milestones'), data: { show_no: true, field_name: "#{issuable_type}[milestone_id]", project_id: issuable_sidebar[:project_id], issuable_id: issuable_sidebar[:id], ability_name: issuable_type, issue_update: issuable_sidebar[:issuable_json_path], use_id: true, default_no: true, selected: milestone[:title], null_default: true, display: 'static' }})
-          - if @project.group.present?
+          - if @project.group.present? && issuable_sidebar[:supports_iterations]
             = render_if_exists 'shared/issuable/iteration_select', can_edit: can_edit_issuable, group_path: @project.group.full_path, project_path: issuable_sidebar[:project_full_path], issue_iid: issuable_sidebar[:iid], issuable_type: issuable_type
 
       - if issuable_sidebar[:supports_time_tracking]

changelogs/unreleased/297007-add-back-milestones-to-incidents.yml

+---
+title: 'Update Issue Incidents to allow the milestones feature to be used in the sidebar and quick actions'
+merge_request: 51456
+author:
+type: changed

ee/app/models/concerns/ee/issuable.rb

@@ -40,5 +40,9 @@ module EE
     def supports_metric_images?
       incident?
     end
+
+    def supports_iterations?
+      false
+    end
   end
 end

ee/app/models/ee/issue.rb

@@ -157,6 +157,7 @@ module EE
       !incident?
     end
 
+    override :supports_iterations?
     def supports_iterations?
       !incident?
     end

ee/app/serializers/ee/issuable_sidebar_basic_entity.rb

@@ -10,6 +10,7 @@ module EE
       end
 
       expose :supports_weight?, as: :supports_weight
+      expose :supports_iterations?, as: :supports_iterations
     end
   end
 end

ee/app/views/shared/issuable/_iteration_select.html.haml

-- if Feature.enabled?(:group_iterations, @project.group, default_enabled: true) && @project.group.feature_available?(:iterations) && issuable_type == "issue"
+- if Feature.enabled?(:group_iterations, @project.group, default_enabled: true) && @project.group.feature_available?(:iterations)
   .js-iteration-select{ data: { can_edit: can_edit, group_path: group_path, project_path: project_path, issue_iid: issue_iid } }

ee/spec/models/concerns/ee/issuable_spec.rb

@@ -79,4 +79,29 @@ RSpec.describe EE::Issuable do
       it { is_expected.to eq(weight_available) }
     end
   end
+
+  describe '#supports_iterations?' do
+    let(:group) { build_stubbed(:group) }
+    let(:project_with_group) { build_stubbed(:project, group: group) }
+    let(:project_without_group) { build_stubbed(:project) }
+
+    where(:issuable_type, :project, :supports_iterations) do
+      [
+        [:issue, :project_with_group, true],
+        [:issue, :project_without_group, true],
+        [:incident, :project_with_group, false],
+        [:incident, :project_without_group, false],
+        [:merge_request, :project_with_group, false],
+        [:merge_request, :project_without_group, false]
+      ]
+    end
+
+    with_them do
+      let(:issuable) { build_stubbed(issuable_type, project: send(project)) }
+
+      subject { issuable.supports_iterations? }
+
+      it { is_expected.to eq(supports_iterations) }
+    end
+  end
 end

spec/features/incidents/incident_details_spec.rb

@@ -45,7 +45,7 @@ RSpec.describe 'Incident details', :js do
 
         expect(page).to have_selector('.right-sidebar[data-issuable-type="issue"]')
         expect(sidebar).to have_selector('.incident-severity')
-        expect(sidebar).not_to have_selector('.milestone')
+        expect(sidebar).to have_selector('.milestone')
       end
     end
   end

spec/features/issues/user_creates_issue_spec.rb

@@ -223,8 +223,8 @@ RSpec.describe "User creates issue" do
         expect(page).not_to have_selector('.epic-dropdown-container')
       end
 
-      it 'hides the milestone select' do
-        expect(page).not_to have_selector('.qa-issuable-milestone-dropdown')
+      it 'shows the milestone select' do
+        expect(page).to have_selector('.qa-issuable-milestone-dropdown')
       end
 
       it 'hides the weight input' do

spec/models/concerns/milestoneable_spec.rb

@@ -104,8 +104,8 @@ RSpec.describe Milestoneable do
     context "for incidents" do
       let(:incident) { build(:incident) }
 
-      it 'returns false' do
-        expect(incident.supports_milestone?).to be_falsy
+      it 'returns true' do
+        expect(incident.supports_milestone?).to be_truthy
       end
     end
   end

spec/services/notes/quick_actions_service_spec.rb

@@ -153,8 +153,8 @@ RSpec.describe Notes::QuickActionsService do
           expect(execute(note)).to be_empty
         end
 
-        it 'does not assign the milestone' do
-          expect { execute(note) }.not_to change { issue.reload.milestone }
+        it 'assigns the milestone' do
+          expect { execute(note) }.to change { issue.reload.milestone }.from(nil).to(milestone)
         end
       end
 
@@ -195,8 +195,8 @@ RSpec.describe Notes::QuickActionsService do
           expect(execute(note)).to be_empty
         end
 
-        it 'does not remove the milestone' do
-          expect { execute(note) }.not_to change { issue.reload.milestone }
+        it 'removes the milestone' do
+          expect { execute(note) }.to change { issue.reload.milestone }.from(milestone).to(nil)
         end
       end