Rails 3:如何在控制器中获取图像路径?
问题描述：
要在控制器中获取图像路径，我使用以下方法:
To get the image path in Controller I use the following method:
class AssetsController < ApplicationController
def download(image_file_name)
path = Rails.root.join("public", "images", image_file_name).to_s
send_file(path, ...)
end
end
有没有更好的方法找到路径?
Is there a better method to find the path ?