Rails的回形針得到上傳上傳一次

Question

這裏是upload.rb（模型）圖像路徑

class Upload < ActiveRecord::Base 
belongs_to :post 
has_attached_file :name, :styles => { :medium => ["600x400>",:jpg], :thumb => ["122x122>",:jpg]}, url: "/post_images/post_:post_id/:style/:filename" 

def self.image_url 
    "/post_images/post_:post_id/medium/:filename" 
end 

end 

我怎樣才能上傳文件的URL。

我的控制器：

def img_upload 
    @image = Upload.new post_id: post_id, name: params[:Filedata] 
     if @image.save 
      render json: Upload.image_url 
     end 
end 

任何一個可以幫助我。

Answer 1

在你的控制器

path = @upload.name.url 

你只需要調用url到附件

拇指網址，只需添加(:thumb)

path = @upload.name.url(:thumb)