Previews of components in modules

[bartekadams]

Hello, I am trying to preview components which are in modules.

When I try to write it like this all my components under rails/components disappear.

module Foo
  class BarPreview < ActionView::Component::Preview
    def default
      render Bar
    end
  end
end

To make preview list work again I must not only remove this code, but also restart server (puma-dev).

However, code written like this is valid and works right.

class Foo::BarPreview < ActionView::Component::Preview
  def default
    render Bar
  end
end

Is it a bug or I am doing something wrong?

System configuration

Rails version: 5.2.4.1
Ruby version: 2.6.3
gem version: 1.8.1

[joelhawksley]

@juanmanuelramallo might you look into this?

[juanmanuelramallo]

Hey @bartekadams, can you try upscoping the parent class with double colons? Something like:

module Foo
  class BarPreview < ::ActionView::Component::Preview
    def default
      render Bar
    end
  end
end

Please let me know if this works

[juanmanuelramallo]

but also restart server (puma-dev)

This might be a sign of something else, like auto loading is not happening correctly for these preview classes. We might want to look into that.

[bartekadams]

@juanmanuelramallo Sorry for responding so late. Putting double colons before as you wrote works.

Unexpectedly for me when I was recreating version that didn't work earlier is appears to work now 😮

[juanmanuelramallo]

Should we close this issue @joelhawksley ? I think it's been solved already

[joelhawksley]

Looks good to me! Thanks for the help @juanmanuelramallo ❤️