Scaffolding with namespace generates broken partial view links with tailwind

[brunto]

Steps to reproduce

1. Generate a new tailwind rails app rails new myapp -c tailwind
2. Generate a namespaced scaffold: bin/rails g scaffold Admin::Books name:string
3. Run the migration: bin/rails db:migrate
4. Change the root_path to: root "admin/books#index"
5. Start the server: bin/dev (don't forget to install foreman)
6. Open the index page
7. Add a new book
8. Go back to the index page
9. BoOoooOommm undefined method `edit_book_path' for an instance of #<Class:0x000000012316db80>

Expected behavior

We should have the edit links working for the book.

Actual behavior

undefined method `edit_book_path' for an instance of #<Class:0x000000012316db80>

Fix

Inside the file app/views/admin/books/_book.html.erb, we should change the following:

<%= link_to "Edit this book", edit_book_path(book), class: "rounded-lg py-3 ml-2 px-5 bg-gray-100 inline-block font-medium" %>

to

<%= link_to "Edit this book", edit_admin_book_path(book), class: "rounded-lg py-3 ml-2 px-5 bg-gray-100 inline-block font-medium" %>

or maybe it's related to the module definition in: app/models/admin.rb

System configuration

Rails version: 7.1.3.2

Ruby version: ruby 3.3.1 (2024-04-23 revision c56cd86388) +YJIT [arm64-darwin23]

[flavorjones]

@brunto Can you please re-open this issue on https://github.com/rails/tailwindcss-rails? Thank you!

Worth noting, some work is already being done to clean up the templates: rails/tailwindcss-rails#357

[flavorjones]

See also rails/tailwindcss-rails#359 which I think fixes this issue.