Heroku的错误 - NoMethodError（未定义的方法'更新'？ [英] heroku error - NoMethodError (undefined method `updated?'

问题描述

我有一个滑轨3.1的应用程序在Heroku上，我不断收到一个500错误在生产中，我不能在开发重建。

I've a rails 3.1 app on Heroku, I keep getting an 500 error in production which I can't recreate in dev.

当我试图在我的控制器中的一个执行更新操作，我收到了500。我从Heroku的日志如下 -

When I try to perform an update action in one of my controllers I get a 500. I get the following from heroku logs -

2011-12-05T13:52:35+00:00 app[web.1]: Completed 500 Internal Server Error in 15ms
2011-12-05T13:52:35+00:00 app[web.1]: 
2011-12-05T13:52:35+00:00 app[web.1]: NoMethodError (undefined method `updated?' for #<ActiveRecord::Associations::HasOneAssociation:0x00000004058800>):
2011-12-05T13:52:35+00:00 app[web.1]:   app/controllers/cars_controller.rb:81:in `block in update'
2011-12-05T13:52:35+00:00 app[web.1]:   app/controllers/cars_controller.rb:80:in `update'

这是我的车控制器更新动作 -

The update action on my cars controller is -

def update
    @car = Car.find_by_url_identifier(params[:id])
    respond_to do |format| #**line 80**
      if @car.update_attributes(params[:car]) #**line 81**
        CarMailer.gift_confirmation(@car).deliver
        format.html { redirect_to(thanks_path(@car.url_identifier)) }
      else
        format.html { render action: "edit" }
      end
    end
end 

被张贴的参数 -

The parameters being posted are -

{"utf8"=>"✓",
 "_method"=>"put",
 "authenticity_token"=>"RTXCVvdsKQHc8CxHLeYS9WuztcrI1b4H8SHsdfsKWu+Iz4=",
 "car"=>{"name"=>"dgdfsdfsd",
 "email"=>"[e-mail]",
 "recipient_attributes"=>{"name"=>"fdsfsd",
 "address1"=>"sdfsdfdsf",
 "address2"=>"dsfdsfsdf",
 "city"=>"sdfdsf",
 "postcode"=>"sdfds"},
 "gift_id"=>"2",
 "message"=>"fsdfsdfdsf",
 "terms"=>"1"},
 "commit"=>"submit",
 "id"=>"test5"}

我的汽车模型是这样的 -

My car model looks like this -

class Car < ActiveRecord::Base
  validates :name, :presence =>true, :on => :update
  validates :url_identifier, :presence =>true, :on => :create
  has_one :recipient
  belongs_to :gift
  accepts_nested_attributes_for :recipient 
  accepts_nested_attributes_for :gift 
  def to_param
    self.url_identifier
  end

end

任何想法如何，我可以解决这一问题？除了看herokus日志，怎么回事，我可以调试呢？

Any idea how I can fix this? Apart from looking at herokus logs, how else can I debug this?

奇怪了，而应用程序的工作，如果我做了Heroku的重启

Oddly the app work for a while if I do a 'heroku restart'

推荐答案

我用Google搜索的错误消息。你有没有一起来看看这个线程： http://ruby-forum.com/topic/81719他们也有类似的问题，并且已经发布了他们的解决方案/黑客。也许值得一试。

I googled the error message. Have you had a look at this thread: http://ruby-forum.com/topic/81719 They had a similar problem and have posted their solution/hack. Might be worth a try.

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