Add issue_stats to milestones

doc/api/releases/index.md

@@ -70,7 +70,11 @@ Example response:
             "updated_at":"2019-07-12T19:45:44.256Z",
             "due_date":"2019-08-16T11:00:00.256Z",
             "start_date":"2019-07-30T12:00:00.256Z",
-            "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/1"
+            "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/1",
+            "issue_stats": {
+               "total": 98,
+               "closed": 76
+            }
          },
          {
             "id":52,
@@ -83,7 +87,11 @@ Example response:
             "updated_at":"2019-07-16T14:00:12.256Z",
             "due_date":"2019-08-16T11:00:00.256Z",
             "start_date":"2019-07-30T12:00:00.256Z",
-            "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/2"
+            "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/2",
+            "issue_stats": {
+               "total": 24,
+               "closed": 21
+            }
          }
       ],
       "commit_path":"/root/awesome-app/commit/588440f66559714280628a4f9799f0c4eb880a4a",
@@ -252,7 +260,11 @@ Example response:
          "updated_at":"2019-07-12T19:45:44.256Z",
          "due_date":"2019-08-16T11:00:00.256Z",
          "start_date":"2019-07-30T12:00:00.256Z",
-         "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/1"
+         "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/1",
+         "issue_stats": {
+            "total": 98,
+            "closed": 76
+         }
        },
        {
          "id":52,
@@ -265,7 +277,11 @@ Example response:
          "updated_at":"2019-07-16T14:00:12.256Z",
          "due_date":"2019-08-16T11:00:00.256Z",
          "start_date":"2019-07-30T12:00:00.256Z",
-         "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/2"
+         "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/2",
+         "issue_stats": {
+            "total": 24,
+            "closed": 21
+         }
        }
    ],
    "commit_path":"/root/awesome-app/commit/588440f66559714280628a4f9799f0c4eb880a4a",
@@ -374,7 +390,11 @@ Example response:
          "updated_at":"2019-07-12T19:45:44.256Z",
          "due_date":"2019-08-16T11:00:00.256Z",
          "start_date":"2019-07-30T12:00:00.256Z",
-         "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/1"
+         "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/1",
+         "issue_stats": {
+            "total": 99,
+            "closed": 76
+         }
        },
        {
          "id":52,
@@ -387,7 +407,11 @@ Example response:
          "updated_at":"2019-07-16T14:00:12.256Z",
          "due_date":"2019-08-16T11:00:00.256Z",
          "start_date":"2019-07-30T12:00:00.256Z",
-         "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/2"
+         "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/2",
+         "issue_stats": {
+            "total": 24,
+            "closed": 21
+         }
        }
    ],
    "commit_path":"/root/awesome-app/commit/588440f66559714280628a4f9799f0c4eb880a4a",
@@ -495,7 +519,11 @@ Example response:
          "updated_at":"2019-09-01T13:00:00.256Z",
          "due_date":"2019-09-20T13:00:00.256Z",
          "start_date":"2019-09-05T12:00:00.256Z",
-         "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/3"
+         "web_url":"https://gitlab.example.com/root/awesome-app/-/milestones/3",
+         "issue_stats": {
+            "opened": 11,
+            "closed": 78
+         }
       }
    ],
    "commit_path":"/root/awesome-app/commit/588440f66559714280628a4f9799f0c4eb880a4a",

lib/api/entities/milestone_with_stats.rb

+# frozen_string_literal: true
+
+module API
+  module Entities
+    class MilestoneWithStats < Entities::Milestone
+      expose :issue_stats do
+        expose :total_issues_count, as: :total
+        expose :closed_issues_count, as: :closed
+      end
+    end
+  end
+end

lib/api/entities/release.rb

@@ -18,7 +18,7 @@ module API
       expose :author, using: Entities::UserBasic, if: -> (release, _) { release.author.present? }
       expose :commit, using: Entities::Commit, if: ->(_, _) { can_download_code? }
       expose :upcoming_release?, as: :upcoming_release
-      expose :milestones, using: Entities::Milestone, if: -> (release, _) { release.milestones.present? && can_read_milestone? }
+      expose :milestones, using: Entities::MilestoneWithStats, if: -> (release, _) { release.milestones.present? && can_read_milestone? }
       expose :commit_path, expose_nil: false
       expose :tag_path, expose_nil: false
       expose :evidence_sha, expose_nil: false, if: ->(_, _) { can_download_code? }

spec/fixtures/api/schemas/public_api/v4/milestone_with_stats.json

+{
+  "type": "object",
+  "properties" : {
+    "id": { "type": "integer" },
+    "iid": { "type": "integer" },
+    "project_id": { "type": ["integer", "null"] },
+    "group_id": { "type": ["integer", "null"] },
+    "title": { "type": "string" },
+    "description": { "type": ["string", "null"] },
+    "state": { "type": "string" },
+    "created_at": { "type": "date" },
+    "updated_at": { "type": "date" },
+    "start_date": { "type": "date" },
+    "due_date": { "type": "date" },
+    "web_url": { "type": "string" },
+    "issue_stats": {
+      "required": ["total", "closed"],
+      "properties": {
+        "total": { "type": "integer" },
+        "closed": { "type": "integer" }
+      },
+      "additionalProperties": false
+    }
+  },
+  "required": [
+    "id", "iid", "title", "description", "state",
+    "state", "created_at", "updated_at", "start_date", "due_date", "issue_stats"
+  ],
+  "additionalProperties": false
+}

spec/fixtures/api/schemas/public_api/v4/release.json

@@ -17,7 +17,7 @@
     },
     "milestones": {
       "type": "array",
-      "items": { "$ref": "milestone.json" }
+      "items": { "$ref": "milestone_with_stats.json" }
     },
     "commit_path": { "type": "string" },
     "tag_path": { "type": "string" },

spec/fixtures/api/schemas/public_api/v4/release/release_for_guest.json

@@ -10,7 +10,7 @@
     "upcoming_release": { "type": "boolean" },
     "milestones": {
       "type": "array",
-      "items": { "$ref": "../milestone.json" }
+      "items": { "$ref": "../milestone_with_stats.json" }
     },
     "commit_path": { "type": "string" },
     "tag_path": { "type": "string" },

spec/requests/api/releases_spec.rb

@@ -359,12 +359,29 @@ describe API::Releases do
 
           let(:milestone) { create(:milestone, project: project) }
 
+          it 'matches schema' do
+            get api("/projects/#{project.id}/releases/v0.1", non_project_member)
+
+            expect(response).to match_response_schema('public_api/v4/release')
+          end
+
           it 'exposes milestones' do
             get api("/projects/#{project.id}/releases/v0.1", non_project_member)
 
             expect(json_response['milestones'].first['title']).to eq(milestone.title)
           end
 
+          it 'returns issue stats for milestone' do
+            create_list(:issue, 2, milestone: milestone, project: project)
+            create_list(:issue, 3, :closed, milestone: milestone, project: project)
+
+            get api("/projects/#{project.id}/releases/v0.1", non_project_member)
+
+            issue_stats = json_response['milestones'].first["issue_stats"]
+            expect(issue_stats["total"]).to eq(5)
+            expect(issue_stats["closed"]).to eq(3)
+          end
+
           context 'when project restricts visibility of issues and merge requests' do
             let!(:project) { create(:project, :repository, :public, :issues_private, :merge_requests_private) }