Full url for an image-path in Rails 3

Question

I have an Image, which contains carrierwave uploads:

Image.find(:first).image.url #=> \"/uploads/image/4d90/display_foo.jpg\"

In my vie

Answer 1

I used default_url_options, because request is not available in mailer and avoided duplicating hostname in config.action_controller.asset_host if haven't specified it before.

config.asset_host = ActionDispatch::Http::URL.url_for(ActionMailer::Base.default_url_options)