Alert Management assignee filter

Allow for Alert Management to
support filtering via assignee
username

app/finders/alert_management/alerts_finder.rb

@@ -19,8 +19,10 @@ module AlertManagement
 
       collection = project.alert_management_alerts
       collection = by_status(collection)
-      collection = by_search(collection)
       collection = by_iid(collection)
+      collection = by_assignee(collection)
+      collection = by_search(collection)
+
       sort(collection)
     end
 
@@ -48,6 +50,10 @@ module AlertManagement
       params[:sort] ? collection.sort_by_attribute(params[:sort]) : collection
     end
 
+    def by_assignee(collection)
+      params[:assignee_username].present? ? collection.for_assignee_username(params[:assignee_username]) : collection
+    end
+
     def authorized?
       Ability.allowed?(current_user, :read_alert_management_alert, project)
     end

app/graphql/resolvers/alert_management/alert_resolver.rb

@@ -22,6 +22,10 @@ module Resolvers
                 description: 'Search criteria for filtering alerts. This will search on title, description, service, monitoring_tool.',
                 required: false
 
+      argument :assignee_username, GraphQL::STRING_TYPE,
+                required: false,
+                description: 'Username of a user assigned to the issue'
+
       type Types::AlertManagement::AlertType, null: true
 
       def resolve_with_lookahead(**args)

app/graphql/resolvers/alert_management/alert_status_counts_resolver.rb

@@ -9,6 +9,10 @@ module Resolvers
                 description: 'Search criteria for filtering alerts. This will search on title, description, service, monitoring_tool.',
                 required: false
 
+      argument :assignee_username, GraphQL::STRING_TYPE,
+                required: false,
+                description: 'Username of a user assigned to the issue'
+
       def resolve(**args)
         ::Gitlab::AlertManagement::AlertStatusCounts.new(context[:current_user], object, args)
       end

app/models/alert_management/alert.rb

@@ -113,6 +113,7 @@ module AlertManagement
     scope :for_status, -> (status) { with_status(status) }
     scope :for_fingerprint, -> (project, fingerprint) { where(project: project, fingerprint: fingerprint) }
     scope :for_environment, -> (environment) { where(environment: environment) }
+    scope :for_assignee_username, -> (assignee_username) { joins(:assignees).merge(User.by_username(assignee_username)) }
     scope :search, -> (query) { fuzzy_search(query, [:title, :description, :monitoring_tool, :service]) }
     scope :open, -> { with_status(open_statuses) }
     scope :not_resolved, -> { without_status(:resolved) }

changelogs/unreleased/232798-alrt-graphql.yml

+---
+title: Make alerts searchable by assignee username in GraphQL API
+merge_request: 44911
+author:
+type: added

doc/api/graphql/reference/gitlab_schema.graphql

@@ -13002,6 +13002,11 @@ type Project {
   A single Alert Management alert of the project
   """
   alertManagementAlert(
+    """
+    Username of a user assigned to the issue
+    """
+    assigneeUsername: String
+
     """
     IID of the alert. For example, "1"
     """
@@ -13027,6 +13032,11 @@ type Project {
   Counts of alerts by status for the project
   """
   alertManagementAlertStatusCounts(
+    """
+    Username of a user assigned to the issue
+    """
+    assigneeUsername: String
+
     """
     Search criteria for filtering alerts. This will search on title, description, service, monitoring_tool.
     """
@@ -13042,6 +13052,11 @@ type Project {
     """
     after: String
 
+    """
+    Username of a user assigned to the issue
+    """
+    assigneeUsername: String
+
     """
     Returns the elements in the list that come before the specified cursor.
     """

doc/api/graphql/reference/gitlab_schema.json

@@ -38430,6 +38430,16 @@
                     "ofType": null
                   },
                   "defaultValue": null
+                },
+                {
+                  "name": "assigneeUsername",
+                  "description": "Username of a user assigned to the issue",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
                 }
               ],
               "type": {
@@ -38453,6 +38463,16 @@
                     "ofType": null
                   },
                   "defaultValue": null
+                },
+                {
+                  "name": "assigneeUsername",
+                  "description": "Username of a user assigned to the issue",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
                 }
               ],
               "type": {
@@ -38515,6 +38535,16 @@
                   },
                   "defaultValue": null
                 },
+                {
+                  "name": "assigneeUsername",
+                  "description": "Username of a user assigned to the issue",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
                 {
                   "name": "after",
                   "description": "Returns the elements in the list that come after the specified cursor.",

spec/finders/alert_management/alerts_finder_spec.rb

@@ -191,12 +191,12 @@ RSpec.describe AlertManagement::AlertsFinder, '#execute' do
           end
         end
       end
-    end
 
       context 'search query given' do
         let_it_be(:alert) do
           create(:alert_management_alert,
                  :with_fingerprint,
+                 project: project,
                  title: 'Title',
                  description: 'Desc',
                  service: 'Service',
@@ -204,12 +204,6 @@ RSpec.describe AlertManagement::AlertsFinder, '#execute' do
                 )
         end
 
-      before do
-        alert.project.add_developer(current_user)
-      end
-
-      subject { described_class.new(current_user, alert.project, params).execute }
-
         context 'searching title' do
           let(:params) { { search: alert.title } }
 
@@ -243,8 +237,33 @@ RSpec.describe AlertManagement::AlertsFinder, '#execute' do
         context 'empty search' do
           let(:params) { { search: ' ' } }
 
+          it { is_expected.not_to include(alert) }
+        end
+      end
+
+      context 'assignee username given' do
+        let_it_be(:assignee) { create(:user) }
+        let_it_be(:alert) { create(:alert_management_alert, project: project, assignees: [assignee]) }
+        let(:params) { { assignee_username: username } }
+
+        context 'with valid assignee_username' do
+          let(:username) { assignee.username }
+
           it { is_expected.to match_array([alert]) }
         end
+
+        context 'with invalid assignee_username' do
+          let(:username) { 'unknown username' }
+
+          it { is_expected.to be_empty }
+        end
+
+        context 'with empty assignee_username' do
+          let(:username) { ' ' }
+
+          it { is_expected.not_to include(alert) }
+        end
+      end
     end
   end
 

spec/models/alert_management/alert_spec.rb

@@ -230,6 +230,35 @@ RSpec.describe AlertManagement::Alert do
       it { is_expected.to match_array(env_alert) }
     end
 
+    describe '.for_assignee_username' do
+      let_it_be(:alert) { triggered_alert }
+      let_it_be(:assignee) { create(:user) }
+
+      subject { AlertManagement::Alert.for_assignee_username(assignee_username) }
+
+      before_all do
+        alert.update!(assignees: [assignee])
+      end
+
+      context 'when matching assignee_username' do
+        let(:assignee_username) { assignee.username }
+
+        it { is_expected.to contain_exactly(alert) }
+      end
+
+      context 'when unknown assignee_username' do
+        let(:assignee_username) { 'unknown username' }
+
+        it { is_expected.to be_empty }
+      end
+
+      context 'with empty assignee_username' do
+        let(:assignee_username) { ' ' }
+
+        it { is_expected.to be_empty }
+      end
+    end
+
     describe '.order_severity_with_open_prometheus_alert' do
       subject { described_class.where(project: alert_project).order_severity_with_open_prometheus_alert }
 

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

@@ -139,6 +139,19 @@ RSpec.describe 'getting Alert Management Alerts' do
           it { expect(alerts.size).to eq(0) }
         end
       end
+
+      context 'assignee_username' do
+        let(:alert) { triggered_alert }
+        let(:assignee) { alert.assignees.first! }
+        let(:params) { { assignee_username: assignee.username } }
+
+        it_behaves_like 'a working graphql query'
+
+        specify do
+          expect(alerts.size).to eq(1)
+          expect(first_alert['iid']).to eq(alert.iid.to_s)
+        end
+      end
     end
   end
 end