[FND-216] Show a proper blankslate when no project attributes are configured

app/components/work_package_types/project_attributes/index_component.html.erb

@@ -7,38 +7,48 @@
         end
       end
 
-      flex.with_row do
-        render(Primer::OpenProject::SubHeader.new(collapsed_search: false)) do |subheader|
-          subheader.with_filter_input(
-            name: "border-box-filter",
-            label: t("types.edit.project_attributes.filter"),
-            visually_hide_label: true,
-            placeholder: t("types.edit.project_attributes.filter"),
-            leading_visual: {
-              icon: :search,
-              size: :small
-            },
-            show_clear_button: true,
-            clear_button_id: clear_button_id,
-            data: {
-              action: "input->filter--filter-list#filterLists",
-              "filter--filter-list-target": "filter"
-            }
-          )
+      if visible_sections.empty?
+        flex.with_row do
+          render(Primer::Beta::Blankslate.new(border: true, test_selector: "type-project-attributes-blankslate")) do |blankslate|
+            blankslate.with_visual_icon(icon: :"list-unordered")
+            blankslate.with_heading(tag: :h3) { t("#{blankslate_i18n_scope}.title") }
+            blankslate.with_description { blankslate_description }
+          end
         end
-      end
-
-      visible_sections.each do |project_custom_field_section, project_custom_fields|
+      else
         flex.with_row do
-          render(
-            WorkPackageTypes::ProjectAttributes::SectionComponent.new(
-              variant: @variant,
-              project_custom_field_section:,
-              project_custom_fields:,
-              linked: linked?,
-              exclusion_state:
+          render(Primer::OpenProject::SubHeader.new(collapsed_search: false)) do |subheader|
+            subheader.with_filter_input(
+              name: "border-box-filter",
+              label: t("types.edit.project_attributes.filter"),
+              visually_hide_label: true,
+              placeholder: t("types.edit.project_attributes.filter"),
+              leading_visual: {
+                icon: :search,
+                size: :small
+              },
+              show_clear_button: true,
+              clear_button_id: clear_button_id,
+              data: {
+                action: "input->filter--filter-list#filterLists",
+                "filter--filter-list-target": "filter"
+              }
+            )
+          end
+        end
+
+        visible_sections.each do |project_custom_field_section, project_custom_fields|
+          flex.with_row do
+            render(
+              WorkPackageTypes::ProjectAttributes::SectionComponent.new(
+                variant: @variant,
+                project_custom_field_section:,
+                project_custom_fields:,
+                linked: linked?,
+                exclusion_state:
+              )
             )
-          )
+          end
         end
       end
     end

app/components/work_package_types/project_attributes/index_component.rb

@@ -38,15 +38,28 @@ def exclusion_state
         @exclusion_state = linked? ? WorkPackageTypes::ExclusionState.for(@variant, ASPECT) : nil
       end
 
+      def blankslate_i18n_scope
+        "types.edit.project_attributes.blankslate.#{linked? ? 'linked' : 'independent'}"
+      end
+
+      def blankslate_description
+        return t("#{blankslate_i18n_scope}.description") if linked?
+
+        link_translate("#{blankslate_i18n_scope}.description",
+                       links: { administration_url: admin_settings_project_custom_fields_path },
+                       external: false)
+      end
+
       def visible_sections
-        return @project_custom_field_sections unless linked?
-
-        result = []
-        @project_custom_field_sections.each do |section, custom_fields|
-          shown = custom_fields.select { |cf| show_in_linked_mode?(cf) }
-          result << [section, shown] if shown.any?
-        end
-        result
+        @visible_sections ||=
+          if linked?
+            @project_custom_field_sections.filter_map do |section, custom_fields|
+              shown = custom_fields.select { |cf| show_in_linked_mode?(cf) }
+              [section, shown] if shown.any?
+            end
+          else
+            @project_custom_field_sections
+          end
       end
 
       def show_in_linked_mode?(custom_field)

config/locales/en.yml

@@ -6286,6 +6286,13 @@ en:
         actions:
           label_disable_all: "Disable all"
           label_enable_all: "Enable all"
+        blankslate:
+          independent:
+            description: "Project attributes are created in the [project attributes administration](administration_url). Once they exist, you can enable them for this configuration here."
+            title: "No project attributes available"
+          linked:
+            description: "The configuration this one is linked to has no project attributes enabled."
+            title: "No project attributes enabled"
         description: "Select the project attributes that you want to enable for this work package type. Enabled project attributes are displayed in a separate tab in work packages of this type. Users with the necessary permissions can view and edit these attributes there."
         disabled: "Disabled"
         exclusions:

spec/components/work_package_types/project_attributes/index_component_spec.rb

@@ -0,0 +1,85 @@
+# frozen_string_literal: true
+
+#-- copyright
+# OpenProject is an open source project management software.
+# Copyright (C) the OpenProject GmbH
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# See COPYRIGHT and LICENSE files for more details.
+#++
+
+require "rails_helper"
+
+RSpec.describe WorkPackageTypes::ProjectAttributes::IndexComponent, type: :component do
+  include Rails.application.routes.url_helpers
+
+  current_user { create(:admin) }
+
+  let(:type) { create(:type) }
+  let(:variant) { type.default_variant }
+  let(:sections) { ProjectCustomFieldSection.grouped_in_order(ProjectCustomField.visible) }
+
+  subject(:rendered_component) do
+    render_inline(described_class.new(variant:, project_custom_field_sections: sections))
+  end
+
+  def blankslate_text(mode, key)
+    I18n.t("types.edit.project_attributes.blankslate.#{mode}.#{key}")
+  end
+
+  context "when the variant configures the aspect itself" do
+    context "with no project attributes at all" do
+      it "renders the blankslate instead of the filter", :aggregate_failures do
+        expect(rendered_component).to have_test_selector("type-project-attributes-blankslate",
+                                                         text: blankslate_text(:independent, :title))
+        expect(rendered_component).to have_link("project attributes administration",
+                                                href: admin_settings_project_custom_fields_path)
+        expect(rendered_component).to have_no_field("border-box-filter")
+      end
+    end
+
+    context "with project attributes" do
+      before { create(:project_custom_field) }
+
+      it "renders the sections and the filter", :aggregate_failures do
+        expect(rendered_component).to have_no_test_selector("type-project-attributes-blankslate")
+        expect(rendered_component).to have_css(".Box-row")
+        expect(rendered_component).to have_field("border-box-filter")
+      end
+    end
+  end
+
+  context "when the variant is linked for the aspect", with_flag: { type_variants: true } do
+    let(:source_type) { create(:type) }
+    let(:source) { source_type.default_variant }
+    let(:custom_field) { create(:project_custom_field) }
+
+    before do
+      custom_field
+      link_configuration(variant, source:, aspect: TypeVariant::PROJECT_ATTRIBUTES)
+    end
+
+    context "when the source enables no project attribute" do
+      it "renders the blankslate instead of the filter", :aggregate_failures do
+        expect(rendered_component).to have_test_selector("type-project-attributes-blankslate",
+                                                         text: blankslate_text(:linked, :title))
+        expect(rendered_component).to have_text(blankslate_text(:linked, :description))
+        expect(rendered_component).to have_no_field("border-box-filter")
+      end
+    end
+
+    context "when the source enables a project attribute" do
+      before do
+        ProjectCustomFieldTypeMapping.create!(type_variant: source, project_custom_field: custom_field)
+      end
+
+      it "renders the sections and the filter", :aggregate_failures do
+        expect(rendered_component).to have_no_test_selector("type-project-attributes-blankslate")
+        expect(rendered_component).to have_css(".Box-row")
+        expect(rendered_component).to have_field("border-box-filter")
+      end
+    end
+  end
+end