Rails ActiveResource检测HTTP206响应代码

Question

如何检测活动资源find()调用返回的是HTTP206而不是典型的HTTP200？

我知道ActiveResource为HTTP3xx-5xx响应码抛出了各种异常，但是你怎么知道你收到的200级响应码是什么呢？

Answer 1

有关如何获取线程的最后一个响应的信息，请参阅Active Resource responses, how to get them。然后您可以根据需要测试响应代码：

class MyConn < ActiveResource::Connection
  def handle_response(resp)
    # Store in thread (thanks fivell for the tip).
    # Use a symbol to avoid generating multiple string instances.
    Thread.current[:active_resource_connection_last_response] = resp
    super
  end
  # this is only a convenience method. You can access this directly from the current thread.
  def last_resp
    Thread.current[:active_resource_connection_last_response]
  end
end

class MyResource < ActiveResource::Base
  class << self
    attr_writer :connection
  end
end

myconn = MyConn.new MyResource.connection.site
MyResource.connection = myconn  # replace with our enhanced version
object = MyResource.find(id)
response_code = MyResource.last_resp.code