Working in rails 8 (uninitialized constant)

[lukef]

I cannot for the life of me get Phlex working in an existing Rails 8 application.

As a simple test, I created a hello_component.rb file in the app/components directory. It looks like:

class Components::Hello < Phlex::HTML
  def view_template
    h1 { "Hello" }
  end
end

I then try calling it in my index.html.erb file like so:

<%= render Components::Hello.new %>

I've also tried defining it as class HelloComponent < Phex::HTML and adjusting the render accordingly.

Every time I get an error like uninitialized constant Components::Panel.

What am I doing wrong?

[joeldrapper]

The component and the render call look correct but if you ran the install script and have a Phlex initializer file, it would expect to find that class under app/components/hello.rb.

Can you confirm the phlex.rb initializer was generated when you ran rails generate phlex:install?

If you can paste the exact error, that might help identify the issue. I assume it's a Zeitwerk error.

[lukef]

Ahh! The file name was the missing piece. Renaming it to app/components/hello.rb did it.

Yep, I ran the install script.

Thanks for that! I could not for the life of me figure out what was wrong.