Expose Alert#issue_iid in GraphQL endpoint

Exposes the issue IID attached to `AlertManagement::Alert`

app/graphql/types/alert_management/alert_type.rb

@@ -13,6 +13,11 @@ module Types
             null: false,
             description: 'Internal ID of the alert'
 
+      field :issue_iid,
+            GraphQL::ID_TYPE,
+            null: true,
+            description: 'Internal ID of the GitLab issue attached to the alert'
+
       field :title,
             GraphQL::STRING_TYPE,
             null: true,

app/models/alert_management/alert.rb

@@ -92,6 +92,8 @@ module AlertManagement
       end
     end
 
+    delegate :iid, to: :issue, prefix: true, allow_nil: true
+
     scope :for_iid, -> (iid) { where(iid: iid) }
     scope :for_fingerprint, -> (project, fingerprint) { where(project: project, fingerprint: fingerprint) }
 

changelogs/unreleased/expose-issue-iid-in-alert-management-alert-graphql.yml

+---
+title: Exposes issue IID in Alert Management Alert's GraphQL endpoint
+merge_request: 31313
+author:
+type: added

doc/api/graphql/reference/gitlab_schema.graphql

@@ -177,6 +177,11 @@ type AlertManagementAlert {
   """
   iid: ID!
 
+  """
+  Internal ID of the GitLab issue attached to the alert
+  """
+  issueIid: ID
+
   """
   Monitoring tool the alert came from
   """

doc/api/graphql/reference/gitlab_schema.json

@@ -504,6 +504,20 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "issueIid",
+              "description": "Internal ID of the GitLab issue attached to the alert",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "ID",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "monitoringTool",
               "description": "Monitoring tool the alert came from",

doc/api/graphql/reference/index.md

@@ -59,6 +59,7 @@ Describes an alert from the project's Alert Management
 | `eventCount` | Int | Number of events of this alert |
 | `hosts` | String! => Array | List of hosts the alert came from |
 | `iid` | ID! | Internal ID of the alert |
+| `issueIid` | ID | Internal ID of the GitLab issue attached to the alert |
 | `monitoringTool` | String | Monitoring tool the alert came from |
 | `service` | String | Service the alert came from |
 | `severity` | AlertManagementSeverity | Severity of the alert |

spec/graphql/types/alert_management/alert_type_spec.rb

@@ -10,6 +10,7 @@ describe GitlabSchema.types['AlertManagementAlert'] do
   it 'exposes the expected fields' do
     expected_fields = %i[
       iid
+      issue_iid
       title
       description
       severity

spec/requests/api/graphql/project/alert_management/alerts_spec.rb

@@ -7,7 +7,7 @@ describe 'getting Alert Management Alerts' do
   let_it_be(:payload) { { 'custom' => { 'alert' => 'payload' } } }
   let_it_be(:project) { create(:project, :repository) }
   let_it_be(:current_user) { create(:user) }
-  let_it_be(:alert_1) { create(:alert_management_alert, :all_fields, :resolved, project: project, severity: :low) }
+  let_it_be(:alert_1) { create(:alert_management_alert, :all_fields, :resolved, project: project, issue: nil, severity: :low) }
   let_it_be(:alert_2) { create(:alert_management_alert, :all_fields, project: project, severity: :critical, payload: payload) }
   let_it_be(:other_project_alert) { create(:alert_management_alert, :all_fields) }
 
@@ -58,6 +58,7 @@ describe 'getting Alert Management Alerts' do
       it 'returns the correct properties of the alerts' do
         expect(first_alert).to include(
           'iid' => alert_2.iid.to_s,
+          'issueIid' => alert_2.issue_iid.to_s,
           'title' => alert_2.title,
           'description' => alert_2.description,
           'severity' => alert_2.severity.upcase,
@@ -74,6 +75,8 @@ describe 'getting Alert Management Alerts' do
         )
 
         expect(second_alert).to include(
+          'iid' => alert_1.iid.to_s,
+          'issueIid' => nil,
           'status' => 'RESOLVED',
           'endedAt' => alert_1.ended_at.strftime('%Y-%m-%dT%H:%M:%SZ')
         )