ruby-on-rails-3 – 在Rails 3.1 RC中相当于File.read(Rails.root.join(‘public / images / email_banner.png’))?
在Rails 3.0.X中,这条线用于工作: email_banner = File.read(Rails.root.join('public/images/email_banner.png')) 由于Rails 3.1 RC将图像dir移动到app / assets / images,我得到错误: Errno::ENOENT: No such file or directory - /Users