Add confirm prompt if turbo is available

Author: patriciomacadden

lib/generators/tailwindcss/scaffold/scaffold_generator.rb

@@ -30,6 +30,10 @@ def copy_view_files
         def available_views
           %w(index edit show new _form)
         end
+
+        def turbo_available?
+          defined? Turbo
+        end
     end
   end
 end

lib/generators/tailwindcss/scaffold/templates/show.html.erb.tt

@@ -12,6 +12,6 @@
   <%%= link_to "Edit this <%= human_name.downcase %>", <%= edit_helper(type: :path) %>, class: "mt-2 rounded-md px-3.5 py-2.5 bg-gray-100 hover:bg-gray-50 inline-block font-medium" %>
   <%%= link_to "Back to <%= human_name.pluralize.downcase %>", <%= index_helper %>_path, class: "ml-2 rounded-md px-3.5 py-2.5 bg-gray-100 hover:bg-gray-50 inline-block font-medium" %>
   <div class="inline-block ml-2">
-    <%%= button_to "Destroy this <%= human_name.downcase %>", <%= model_resource_name(prefix: "@") %>, method: :delete, class: "mt-2 rounded-md px-3.5 py-2.5 text-white bg-red-600 hover:bg-red-500 font-medium" %>
+    <%%= button_to "Destroy this <%= human_name.downcase %>", <%= model_resource_name(prefix: "@") %>, method: :delete, class: "mt-2 rounded-md px-3.5 py-2.5 text-white bg-red-600 hover:bg-red-500 font-medium"<%= ", data: { turbo_confirm: \"Are you sure?\" }" if turbo_available? %> %>
   </div>
 </div>

test/lib/generators/tailwindcss/scaffold_generator_test.rb

@@ -46,4 +46,24 @@ class Tailwindcss::Generators::ScaffoldGeneratorTest < Rails::Generators::TestCa
       end
     end
   end
+
+  test "adds a confirmation prompt to the destroy button when turbo is available" do
+    ::Turbo = Class.new
+
+    run_generator
+
+    assert_file "app/views/messages/show.html.erb" do |body|
+      assert_match "data: { turbo_confirm: \"Are you sure?\" }", body, "confirmation prompt should be added for turbo"
+    end
+
+    Object.send :remove_const, :Turbo
+  end
+
+  test "doesn't add a confirmation prompt to the destroy button when turbo is not available" do
+    run_generator
+
+    assert_file "app/views/messages/show.html.erb" do |body|
+      assert_no_match "data: { turbo_confirm: \"Are you sure?\" }", body, "confirmation prompt shouldn't be added"
+    end
+  end
 end