Fixes #22622: Include MR times in Milestone time overview

app/models/concerns/milestoneish.rb

@@ -117,20 +117,20 @@ module Milestoneish
     false
   end
 
-  def total_issue_time_spent
-    @total_issue_time_spent ||= issues.joins(:timelogs).sum(:time_spent)
+  def total_time_spent
+    @total_time_spent ||= issues.joins(:timelogs).sum(:time_spent) + merge_requests.joins(:timelogs).sum(:time_spent)
   end
 
-  def human_total_issue_time_spent
-    Gitlab::TimeTrackingFormatter.output(total_issue_time_spent)
+  def human_total_time_spent
+    Gitlab::TimeTrackingFormatter.output(total_time_spent)
   end
 
-  def total_issue_time_estimate
-    @total_issue_time_estimate ||= issues.sum(:time_estimate)
+  def total_time_estimate
+    @total_time_estimate ||= issues.sum(:time_estimate) + merge_requests.sum(:time_estimate)
   end
 
-  def human_total_issue_time_estimate
-    Gitlab::TimeTrackingFormatter.output(total_issue_time_estimate)
+  def human_total_time_estimate
+    Gitlab::TimeTrackingFormatter.output(total_time_estimate)
   end
 
   private

app/models/global_milestone.rb

@@ -94,7 +94,7 @@ class GlobalMilestone
   end
 
   def merge_requests
-    @merge_requests ||= MergeRequest.of_milestones(milestone).includes(:target_project, :assignee, :labels)
+    @merge_requests ||= MergeRequest.of_milestones(milestone).includes(:target_project, :assignees, :labels)
   end
 
   def labels

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

@@ -93,10 +93,10 @@
               = milestone.issues_visible_to_user(current_user).closed.count
 
     .block
-      #issuable-time-tracker{ data: { time_estimate: @milestone.total_issue_time_estimate,
-        time_spent: @milestone.total_issue_time_spent,
-        human_time_estimate: @milestone.human_total_issue_time_estimate,
-        human_time_spent: @milestone.human_total_issue_time_spent,
+      #issuable-time-tracker{ data: { time_estimate: @milestone.total_time_estimate,
+        time_spent: @milestone.total_time_spent,
+        human_time_estimate: @milestone.human_total_time_estimate,
+        human_time_spent: @milestone.human_total_time_spent,
         limit_to_hours: Gitlab::CurrentSettings.time_tracking_limit_to_hours.to_s } }
 
     = render_if_exists 'shared/milestones/weight', milestone: milestone

changelogs/unreleased/include-mr-times.yml

+---
+title: Include MR times in Milestone time overview
+merge_request: 28519
+author: Bob van de Vijver
+type: fixed

doc/user/project/milestones/index.md

@@ -133,7 +133,7 @@ The milestone sidebar on the milestone view shows the following:
 
 - Percentage complete, which is calculated as number of closed issues divided by total number of issues.
 - The start date and due date.
-- The total time spent on all issues assigned to the milestone.
+- The total time spent on all issues and merge requests assigned to the milestone.
 - The total issue weight of all issues assigned to the milestone.
 
 ![Project milestone page](img/milestones_project_milestone_page.png)

spec/models/concerns/milestoneish_spec.rb

@@ -302,20 +302,55 @@ describe Milestone, 'Milestoneish' do
     end
   end
 
-  describe '#total_issue_time_spent' do
-    it 'calculates total issue time spent' do
+  describe '#total_time_spent' do
+    it 'calculates total time spent' do
       closed_issue_1.spend_time(duration: 300, user_id: author.id)
       closed_issue_1.save!
       closed_issue_2.spend_time(duration: 600, user_id: assignee.id)
       closed_issue_2.save!
 
-      expect(milestone.total_issue_time_spent).to eq(900)
+      expect(milestone.total_time_spent).to eq(900)
+    end
+
+    it 'includes merge request time spent' do
+      closed_issue_1.spend_time(duration: 300, user_id: author.id)
+      closed_issue_1.save!
+      merge_request.spend_time(duration: 900, user_id: author.id)
+      merge_request.save!
+
+      expect(milestone.total_time_spent).to eq(1200)
+    end
+  end
+
+  describe '#human_total_time_spent' do
+    it 'returns nil if no time has been spent' do
+      expect(milestone.human_total_time_spent).to be_nil
+    end
+  end
+
+  describe '#total_time_estimate' do
+    it 'calculates total estimate' do
+      closed_issue_1.time_estimate = 300
+      closed_issue_1.save!
+      closed_issue_2.time_estimate = 600
+      closed_issue_2.save!
+
+      expect(milestone.total_time_estimate).to eq(900)
+    end
+
+    it 'includes merge request time estimate' do
+      closed_issue_1.time_estimate = 300
+      closed_issue_1.save!
+      merge_request.time_estimate = 900
+      merge_request.save!
+
+      expect(milestone.total_time_estimate).to eq(1200)
     end
   end
 
-  describe '#human_total_issue_time_spent' do
+  describe '#human_total_time_estimate' do
     it 'returns nil if no time has been spent' do
-      expect(milestone.human_total_issue_time_spent).to be_nil
+      expect(milestone.human_total_time_estimate).to be_nil
     end
   end
 end