List only active project templates

Adds a fix to only display project templates
that are active. It discards projects that are scheduled
to be deleted in the future via delayed deletion.

ee/app/helpers/ee/projects_helper.rb

@@ -165,7 +165,7 @@ module EE
     def group_project_templates_count(group_id)
       allowed_subgroups = current_user.available_subgroups_with_custom_project_templates(group_id)
 
-      ::Project.in_namespace(allowed_subgroups).count
+      ::Project.in_namespace(allowed_subgroups).not_aimed_for_deletion.count
     end
 
     def project_security_dashboard_config(project)

ee/app/models/ee/project.rb

@@ -143,6 +143,7 @@ module EE
       scope :with_slack_slash_commands_service, -> { joins(:slack_slash_commands_service) }
       scope :with_prometheus_service, -> { joins(:prometheus_service) }
       scope :aimed_for_deletion, -> (date) { where('marked_for_deletion_at <= ?', date).without_deleted }
+      scope :not_aimed_for_deletion, -> { where(marked_for_deletion_at: nil) }
       scope :with_repos_templates, -> { where(namespace_id: ::Gitlab::CurrentSettings.current_application_settings.custom_project_templates_group_id) }
       scope :with_groups_level_repos_templates, -> { joins("INNER JOIN namespaces ON projects.namespace_id = namespaces.custom_project_templates_group_id") }
       scope :with_designs, -> { where(id: ::DesignManagement::Design.select(:project_id).distinct) }

ee/app/views/users/_custom_project_templates_from_groups.html.haml

 .custom-project-templates
   - if groups_with_project_templates.present?
     - groups_with_project_templates.each do |group|
+      - projects = group.projects.not_aimed_for_deletion
       .template-group-options.js-template-group-options{ class: ('expanded border-top-0' if groups_with_project_templates.first == group) }
         .template-header.d-flex.align-items-center
           .template-subgroup.d-flex.flex-fill.align-items-center
@@ -17,9 +18,9 @@
           .template-subgroup-project-count
             %span.badge.badge-pill
               %strong
-                = group.projects.count
+                = projects.count
 
-        - group.projects.each do |project|
+        - projects.each do |project|
           .template-option.align-items-center.qa-template-option-row
             .avatar-container.s40
               = project_icon(project, alt: project.name, class: 'btn-template-icon avatar s40 avatar-tile', lazy: false)

ee/changelogs/unreleased/fix-group-project-template-list.yml

+---
+title: Permit new projects to be created from active project templates only
+merge_request: 38335
+author:
+type: fixed

ee/spec/helpers/projects_helper_spec.rb

@@ -87,6 +87,36 @@ RSpec.describe ProjectsHelper do
     end
   end
 
+  describe '#group_project_templates_count' do
+    let_it_be(:user) { create(:user) }
+    let_it_be(:parent_group) { create(:group, name: 'parent-group') }
+    let_it_be(:template_group) { create(:group, parent: parent_group, name: 'template-group') }
+    let_it_be(:template_project) { create(:project, group: template_group, name: 'template-project') }
+
+    before_all do
+      parent_group.update!(custom_project_templates_group_id: template_group.id)
+      parent_group.add_owner(user)
+    end
+
+    before do
+      allow(helper).to receive(:current_user).and_return(user)
+    end
+
+    it do
+      expect(helper.group_project_templates_count(parent_group.id)).to eq 1
+    end
+
+    context 'when template project is pending deletion' do
+      before do
+        template_project.update!(marked_for_deletion_at: Date.current)
+      end
+
+      it do
+        expect(helper.group_project_templates_count(parent_group.id)).to eq 0
+      end
+    end
+  end
+
   describe '#project_security_dashboard_config' do
     let_it_be(:user) { create(:user) }
     let_it_be(:group) { create(:group) }

ee/spec/models/project_spec.rb

@@ -230,6 +230,15 @@ RSpec.describe Project do
 
       it { is_expected.to contain_exactly(project_1) }
     end
+
+    describe '.not_aimed_for_deletion' do
+      let_it_be(:project) { create(:project) }
+      let_it_be(:delayed_deletion_project) { create(:project, marked_for_deletion_at: Date.current) }
+
+      it do
+        expect(described_class.not_aimed_for_deletion).to contain_exactly(project)
+      end
+    end
   end
 
   describe 'validations' do