Ruby on Rails的：REST API +文件上传+回形针

问题描述

我想通过一个PUT请求上传使用REST API我的服务器上的附件。我可以把二进制文件中请求主体做到这一点，但我也想保存此文件作为附件到使用回形针保存附件的典范。

I'm trying to upload an attachment using REST API on my server through a PUT request. I can do this by putting the binary file in the request body but I'd also like to save this file as an attachment to a model which uses paperclip to save attachments.

下面是我目前参与的类定义：

Here's my current involved class definitions:

class Cl < ActiveRecord::Base
  after_update :save_tses
  validates_associated :tses

  has_many :tses

  ...truncated...

  def save_tses
    tses.each do |ts|
      ts.save(false)
    end
  end

end

class Ts < ActiveRecord::Base
  has_attached_file :tsa, :styles => { :thumb => {:geometry => "100x141>", :format => :jpg} },
    :path => ":rails_root/public/system/:attachment/:id/:style/:friendly_filename",
    :url => "/system/:attachment/:id/:style/:friendly_filename"

  belongs_to :cl

  def friendly_filename
    "#{self.tsa_file_name.gsub( /[^a-zA-Z0-9_\.]/, '_')}"
  end
end

我就好使用HTML页面上的文件上传保存附件。我想做到这一点，通过PUT请求接收文件作为二进制数据控制器上。

I can save the attachments just fine using the file upload on the html page. I'd like to do this on a controller that receives the file as binary data through a PUT request.

有什么建议？

推荐答案

明白了，

# controller.rb

def add_ts
  # params[:id]
  # params[:tsa]

  @cl = Cl.find(params[:id])
  ts = @cl.tses.build(:name => "#{@cl.name}_#{Time.now.to_i}")

  ts.tsa = params[:tsa]
  if ts.save
    render :json => {:status => "OK"}
  else
    render :json => {:status => "ERROR"}
  end
end

# Test

curl -F "[email protected]" "http://host/cl/474/add_ts"
=> {"status":"OK"}

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