Pending delete projects no longer return 500 error in Admins projects view

app/finders/admin/projects_finder.rb

@@ -18,7 +18,7 @@ class Admin::ProjectsFinder
   end
 
   def execute
-    items = Project.with_statistics
+    items = Project.without_deleted.with_statistics
     items = items.in_namespace(namespace_id) if namespace_id.present?
     items = items.where(visibility_level: visibility_level) if visibility_level.present?
     items = items.with_push if with_push.present?

changelogs/unreleased/35435-pending-delete-project-error-in-admin-interface-fix.yml

+---
+title: Project pending delete no longer return 500 error in admins projects view
+merge_request: 13389
+author:

spec/controllers/admin/projects_controller_spec.rb

@@ -12,12 +12,24 @@ describe Admin::ProjectsController do
 
     it 'retrieves the project for the given visibility level' do
       get :index, visibility_level: [Gitlab::VisibilityLevel::PUBLIC]
+
       expect(response.body).to match(project.name)
     end
 
     it 'does not retrieve the project' do
       get :index, visibility_level: [Gitlab::VisibilityLevel::INTERNAL]
+
       expect(response.body).not_to match(project.name)
     end
+
+    it 'does not respond with projects pending deletion' do
+      pending_delete_project = create(:project, pending_delete: true)
+
+      get :index
+
+      expect(response).to have_http_status(200)
+      expect(response.body).not_to match(pending_delete_project.name)
+      expect(response.body).to match(project.name)
+    end
   end
 end

spec/finders/admin/projects_finder_spec.rb

@@ -38,6 +38,12 @@ describe Admin::ProjectsFinder do
       it { is_expected.to match_array([shared_project, public_project, internal_project, private_project]) }
     end
 
+    context 'with pending delete project' do
+      let!(:pending_delete_project) { create(:project, pending_delete: true) }
+
+      it { is_expected.not_to include(pending_delete_project) }
+    end
+
     context 'filter by namespace_id' do
       let(:namespace) { create(:namespace) }
       let!(:project_in_namespace) { create(:project, namespace: namespace) }