Fix 404 on alert details

ee/app/controllers/projects/threat_monitoring_controller.rb

@@ -14,9 +14,11 @@ module Projects
 
     feature_category :web_firewall
 
+    # rubocop: disable CodeReuse/ActiveRecord
     def alert_details
-      @alert_id = project.alert_management_alerts.find(params[:id]).id
+      @alert_iid = AlertManagement::AlertsFinder.new(current_user, project, params.merge(domain: 'threat_monitoring')).execute.first!.iid
     end
+    # rubocop: enable CodeReuse/ActiveRecord
 
     def edit
       @environment = project.environments.find(params[:environment_id])

ee/app/helpers/policy_helper.rb

@@ -14,9 +14,9 @@ module PolicyHelper
     details.merge(edit_details)
   end
 
-  def threat_monitoring_alert_details_data(project, alert_id)
+  def threat_monitoring_alert_details_data(project, alert_iid)
     {
-      'alert-id' => alert_id,
+      'alert-id' => alert_iid,
       'project-path' => project.full_path,
       'project-id' => project.id,
       'project-issues-path' => project_issues_path(project),

ee/app/views/projects/threat_monitoring/alert_details.html.haml

 - add_to_breadcrumbs s_('ThreatMonitoring|Threat Monitoring'), project_threat_monitoring_path(@project)
 - page_title s_('ThreatMonitoring|Alert Details')
 
-#js-alert_details{ data: threat_monitoring_alert_details_data(@project, @alert_id) }
+#js-alert_details{ data: threat_monitoring_alert_details_data(@project, @alert_iid) }
 

ee/config/routes/project.rb

@@ -40,7 +40,7 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
         resources :subscriptions, only: [:create, :destroy]
 
         resource :threat_monitoring, only: [:show], controller: :threat_monitoring do
-          get '/alerts/:id', action: 'alert_details', constraints: { id: /\d+/ }, as: :threat_monitoring_alert
+          get '/alerts/:iid', action: 'alert_details', constraints: { iid: /\d+/ }, as: :threat_monitoring_alert
           resources :policies, only: [:new, :edit], controller: :threat_monitoring
         end
 

ee/spec/controllers/projects/threat_monitoring_controller_spec.rb

@@ -4,7 +4,7 @@ require 'spec_helper'
 
 RSpec.describe Projects::ThreatMonitoringController do
   let_it_be(:project) { create(:project, :repository, :private) }
-  let_it_be(:alert) { create(:alert_management_alert, :cilium, project: project) }
+  let_it_be(:alert) { create(:alert_management_alert, :threat_monitoring, project: project) }
   let_it_be(:user) { create(:user) }
 
   describe 'GET show' do
@@ -239,9 +239,9 @@ RSpec.describe Projects::ThreatMonitoringController do
   end
 
   describe 'GET threat monitoring alerts' do
-    let(:alert_id) { alert.id }
+    let(:alert_iid) { alert.iid }
 
-    subject { get :alert_details, params: { namespace_id: project.namespace, project_id: project, id: alert_id } }
+    subject { get :alert_details, params: { namespace_id: project.namespace, project_id: project, iid: alert_iid } }
 
     context 'with authorized user' do
       before do
@@ -284,7 +284,7 @@ RSpec.describe Projects::ThreatMonitoringController do
         end
 
         context 'when id is invalid' do
-          let(:alert_id) { nil }
+          let(:alert_iid) { nil }
 
           it 'raises an error' do
             expect { subject }.to raise_error(ActionController::UrlGenerationError)
@@ -292,7 +292,7 @@ RSpec.describe Projects::ThreatMonitoringController do
         end
 
         context 'when id is not found' do
-          let(:alert_id) { non_existing_record_id }
+          let(:alert_iid) { non_existing_record_id }
 
           it 'renders not found' do
             subject

ee/spec/helpers/policy_helper_spec.rb

@@ -62,11 +62,11 @@ RSpec.describe PolicyHelper do
     let(:alert) { build(:alert_management_alert, project: project) }
 
     context 'when a new alert is created' do
-      subject { helper.threat_monitoring_alert_details_data(project, alert.id) }
+      subject { helper.threat_monitoring_alert_details_data(project, alert.iid) }
 
       it 'returns expected policy data' do
         expect(subject).to match({
-          'alert-id' => alert.id,
+          'alert-id' => alert.iid,
           'project-path' => project.full_path,
           'project-id' => project.id,
           'project-issues-path' => project_issues_path(project),