Issue #29200 scaffold an object with a reference displays an object memory address to user

railties/CHANGELOG.md

@@ -1,3 +1,8 @@
+*  Use Ids instead of memory addresses when displaying references in scaffold views
+    Fixes #29200.
+
+    *Rasesh Patel*
+
 *   Adds support for multiple databases to `rails db:migrate:status`.
     Subtasks are also added to get the status of individual databases (eg. `rails db:migrate:status:animals`).
 

railties/lib/rails/generators/erb/scaffold/templates/index.html.erb.tt

@@ -16,7 +16,7 @@
     <%% @<%= plural_table_name %>.each do |<%= singular_table_name %>| %>
       <tr>
 <% attributes.reject(&:password_digest?).each do |attribute| -%>
-        <td><%%= <%= singular_table_name %>.<%= attribute.name %> %></td>
+        <td><%%= <%= singular_table_name %>.<%= attribute.column_name %> %></td>
 <% end -%>
         <td><%%= link_to 'Show', <%= model_resource_name %> %></td>
         <td><%%= link_to 'Edit', edit_<%= singular_route_name %>_path(<%= singular_table_name %>) %></td>

railties/lib/rails/generators/erb/scaffold/templates/show.html.erb.tt

@@ -3,7 +3,7 @@
 <% attributes.reject(&:password_digest?).each do |attribute| -%>
 <p>
   <strong><%= attribute.human_name %>:</strong>
-  <%%= @<%= singular_table_name %>.<%= attribute.name %> %>
+  <%%= @<%= singular_table_name %>.<%= attribute.column_name %> %>
 </p>
 
 <% end -%>

railties/test/generators/scaffold_generator_test.rb

@@ -435,8 +435,8 @@ def test_scaffold_generator_outputs_error_message_on_missing_attribute_type
     end
   end
 
-  def test_scaffold_generator_belongs_to
-    run_generator ["account", "name", "currency:belongs_to"]
+  def test_scaffold_generator_belongs_to_and_references
+    run_generator ["account", "name", "currency:belongs_to", "user:references"]
 
     assert_file "app/models/account.rb", /belongs_to :currency/
 
@@ -449,14 +449,24 @@ def test_scaffold_generator_belongs_to
 
     assert_file "app/controllers/accounts_controller.rb" do |content|
       assert_instance_method :account_params, content do |m|
-        assert_match(/permit\(:name, :currency_id\)/, m)
+        assert_match(/permit\(:name, :currency_id, :user_id\)/, m)
       end
     end
 
     assert_file "app/views/accounts/_form.html.erb" do |content|
       assert_match(/^\W{4}<%= form\.text_field :name %>/, content)
       assert_match(/^\W{4}<%= form\.text_field :currency_id %>/, content)
     end
+
+    assert_file "app/views/accounts/index.html.erb" do |content|
+      assert_match(/^\W{8}<td><%= account\.name %><\/td>/, content)
+      assert_match(/^\W{8}<td><%= account\.user_id %><\/td>/, content)
+    end
+
+    assert_file "app/views/accounts/show.html.erb" do |content|
+      assert_match(/^\W{2}<%= @account\.name %>/, content)
+      assert_match(/^\W{2}<%= @account\.user_id %>/, content)
+    end
   end
 
   def test_scaffold_generator_database