Expose issue weight on the API

changelogs/unreleased-ee/api-issue-weight.yml

+---
+title: Expose issue weight in the API
+merge_request: 1023
+author: Robert Schilling

doc/api/issues.md

@@ -81,7 +81,8 @@ Example response:
       "user_notes_count": 1,
       "due_date": "2016-07-22",
       "web_url": "http://example.com/example/example/issues/6",
-      "confidential": false
+      "confidential": false,
+      "weight": null
    }
 ]
 ```
@@ -160,7 +161,8 @@ Example response:
       "user_notes_count": 1,
       "due_date": null,
       "web_url": "http://example.com/example/example/issues/1",
-      "confidential": false
+      "confidential": false,
+      "weight": null
    }
 ]
 ```
@@ -241,7 +243,8 @@ Example response:
       "user_notes_count": 1,
       "due_date": "2016-07-22",
       "web_url": "http://example.com/example/example/issues/1",
-      "confidential": false
+      "confidential": false,
+      "weight": null
    }
 ]
 ```
@@ -307,7 +310,8 @@ Example response:
    "user_notes_count": 1,
    "due_date": null,
    "web_url": "http://example.com/example/example/issues/1",
-   "confidential": false
+   "confidential": false,
+   "weight": null
 }
 ```
 
@@ -331,6 +335,7 @@ POST /projects/:id/issues
 | `created_at`    | string  | no  | Date time string, ISO 8601 formatted, e.g. `2016-03-11T03:45:40Z` (requires admin or project owner rights) |
 | `due_date`      | string  | no  | Date time string in the format YEAR-MONTH-DAY, e.g. `2016-03-11` |
 | `merge_request_for_resolving_discussions` | integer | no       | The IID of a merge request in which to resolve all issues. This will fill the issue with a default description and mark all discussions as resolved. When passing a description or title, these values will take precedence over the default values. |
+| `weight` | integer | no | The weight of the issue in range 0 to 9 |
 
 ```bash
 curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/4/issues?title=Issues%20with%20auth&labels=bug
@@ -365,7 +370,8 @@ Example response:
    "user_notes_count": 0,
    "due_date": null,
    "web_url": "http://example.com/example/example/issues/14",
-   "confidential": false
+   "confidential": false,
+   "weight": null
 }
 ```
 
@@ -391,6 +397,7 @@ PUT /projects/:id/issues/:issue_id
 | `state_event`   | string  | no  | The state event of an issue. Set `close` to close the issue and `reopen` to reopen it |
 | `updated_at`    | string  | no  | Date time string, ISO 8601 formatted, e.g. `2016-03-11T03:45:40Z` (requires admin or project owner rights) |
 | `due_date`      | string  | no  | Date time string in the format YEAR-MONTH-DAY, e.g. `2016-03-11` |
+| `weight` | integer | no | The weight of the issue in range 0 to 9 |
 
 ```bash
 curl --request PUT --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/4/issues/85?state_event=close
@@ -425,7 +432,8 @@ Example response:
    "user_notes_count": 0,
    "due_date": "2016-07-22",
    "web_url": "http://example.com/example/example/issues/15",
-   "confidential": false
+   "confidential": false,
+   "weight": null
 }
 ```
 
@@ -501,7 +509,8 @@ Example response:
   },
   "due_date": null,
   "web_url": "http://example.com/example/example/issues/11",
-  "confidential": false
+  "confidential": false,
+  "weight": null
 }
 ```
 
@@ -556,7 +565,8 @@ Example response:
   },
   "due_date": null,
   "web_url": "http://example.com/example/example/issues/11",
-  "confidential": false
+  "confidential": false,
+  "weight": null
 }
 ```
 
@@ -612,7 +622,8 @@ Example response:
   "subscribed": false,
   "due_date": null,
   "web_url": "http://example.com/example/example/issues/12",
-  "confidential": false
+  "confidential": false,
+  "weight": null
 }
 ```
 
@@ -700,7 +711,8 @@ Example response:
     "downvotes": 0,
     "due_date": null,
     "web_url": "http://example.com/example/example/issues/110",
-    "confidential": false
+    "confidential": false,
+    "weight": null
   },
   "target_url": "https://gitlab.example.com/gitlab-org/gitlab-ci/issues/10",
   "body": "Vel voluptas atque dicta mollitia adipisci qui at.",

lib/api/entities.rb

@@ -113,7 +113,7 @@ module API
       expose :request_access_enabled
       expose :only_allow_merge_if_all_discussions_are_resolved
       expose :approvals_before_merge
-     
+
       expose :statistics, using: 'API::Entities::ProjectStatistics', if: :statistics
     end
 
@@ -284,6 +284,7 @@ module API
       expose :upvotes, :downvotes
       expose :due_date
       expose :confidential
+      expose :weight
 
       expose :web_url do |issue, options|
         Gitlab::UrlBuilder.build(issue)

lib/api/issues.rb

@@ -37,6 +37,8 @@ module API
         optional :labels, type: String, desc: 'Comma-separated list of label names'
         optional :due_date, type: String, desc: 'Date string in the format YEAR-MONTH-DAY'
         optional :confidential, type: Boolean, desc: 'Boolean parameter if the issue should be confidential'
+        # Gitlab-EE specific
+        optional :weight, type: Integer, values: 0..9, desc: 'The weight of the issue'
       end
     end
 
@@ -173,7 +175,8 @@ module API
         optional :state_event, type: String, values: %w[reopen close], desc: 'State of the issue'
         use :issue_params
         at_least_one_of :title, :description, :assignee_id, :milestone_id,
-                        :labels, :created_at, :due_date, :confidential, :state_event
+                        :labels, :created_at, :due_date, :confidential, :state_event,
+                        :weight
       end
       put ':id/issues/:issue_id' do
         issue = user_project.issues.find(params.delete(:issue_id))

spec/requests/api/issues_spec.rb

@@ -535,6 +535,7 @@ describe API::Issues, api: true  do
       expect(json_response['assignee']).to be_a Hash
       expect(json_response['author']).to be_a Hash
       expect(json_response['confidential']).to be_falsy
+      expect(json_response['weight']).to be_nil
     end
 
     it "returns a project issue by id" do
@@ -602,13 +603,14 @@ describe API::Issues, api: true  do
   describe "POST /projects/:id/issues" do
     it 'creates a new project issue' do
       post api("/projects/#{project.id}/issues", user),
-        title: 'new issue', labels: 'label, label2'
+        title: 'new issue', labels: 'label, label2', weight: 3
 
       expect(response).to have_http_status(201)
       expect(json_response['title']).to eq('new issue')
       expect(json_response['description']).to be_nil
       expect(json_response['labels']).to eq(['label', 'label2'])
       expect(json_response['confidential']).to be_falsy
+      expect(json_response['weight']).to eq(3)
     end
 
     it 'creates a new confidential project issue' do
@@ -963,6 +965,38 @@ describe API::Issues, api: true  do
     end
   end
 
+  describe 'PUT /projects/:id/issues/:issue_id to update weight' do
+    it 'updates an issue with no weight' do
+      put api("/projects/#{project.id}/issues/#{issue.id}", user), weight: 5
+
+      expect(response).to have_http_status(200)
+      expect(json_response['weight']).to eq(5)
+    end
+
+    it 'removes a weight from an issue' do
+      weighted_issue = create(:issue, project: project, weight: 2)
+
+      put api("/projects/#{project.id}/issues/#{weighted_issue.id}", user), weight: nil
+
+      expect(response).to have_http_status(200)
+      expect(json_response['weight']).to be_nil
+    end
+
+    it 'returns 400 if weight is less than minimum weight' do
+      put api("/projects/#{project.id}/issues/#{issue.id}", user), weight: -1
+
+      expect(response).to have_http_status(400)
+      expect(json_response['error']).to eq('weight does not have a valid value')
+    end
+
+    it 'returns 400 if weight is more than maximum weight' do
+      put api("/projects/#{project.id}/issues/#{issue.id}", user), weight: 10
+
+      expect(response).to have_http_status(400)
+      expect(json_response['error']).to eq('weight does not have a valid value')
+    end
+  end
+
   describe "DELETE /projects/:id/issues/:issue_id" do
     it "rejects a non member from deleting an issue" do
       delete api("/projects/#{project.id}/issues/#{issue.id}", non_member)