Rails回形针上传后获取上传的图像路径

Question

这里是upload.rb（模型）

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

如何获取上传文件的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

谁能帮帮我。

Answer 1

在你的控制器中

path = @upload.name.url

您只需拨打url 即可发送附件

对于拇指网址，只需添加(:thumb)

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