ActionMailer Preview. Is it posible to use multiple paths?

rubyonrails-talk
1

Hi there!

In my project I have a few engines. Each engine has its own set of Mailers and templates.

I want to have Previews for each specific engine, and keep them in engines.

I’ve found that ActionMailer Preview provides a way to change a path to preview classes, but looks like it’s impossible to use an array of paths, or use something like prepand_view_path / append_view_path like we can do in controllers.

https://github.com/rails/rails/blob/3faf7485623da55215d6d7f3dcb2eed92c59c699/actionmailer/lib/action_mailer/preview.rb#L92

Is there any way to have multiple paths for ActionMailer Preview?

Is it possible to create some kind of monkey patch to implement it?

Thanks!

2

I’ve run into this same issue myself. It looks like work started on this feature but bogged down. See Add support for multiple preview_path by camelmasa · Pull Request #16836 · rails/rails · GitHub

Would be great to get that pull request fixed up and merged in!