Rails的Find_by_id产生异常 [英] Rails Find_by_id raises exception

问题描述

我认为，导致Object.find和Object.find_by_id之间的不同之处在于发现将引发 RecordNotFound 的异常而find_by_id简单地返回零，如果没有被发现。

I was led to believe that the difference between Object.find and Object.find_by_id is that find will raise a RecordNotFound exception whereas find_by_id simply returns nil if nothing is found.

不过，在我的Rails应用程序3，如果我试图寻找我的上传模型与一个假身份证，我得到：

However, in my Rails 3 app if I attempt to search my Uploads model with a bogus id I get:

的ActiveRecord :: RecordNotFound在UploadsController＃秀

找不到上传与ID = 59

Couldn't find Upload with id=59

请求

参数：

{ID=>59}

下面是code这就是行搞乱了：

Here is the line of code thats messing up:

@upload = Upload.find_by_id(params[:id])

我用Rails 3.1.3。

I'm using Rails 3.1.3.

推荐答案

这竟然是用的林pressionist宝石的，我使用，因为它是迷上了我的上传节目行动，并试图执行它自己的发现之前，我有机会来处理它。

This turned out to be a problem with the Impressionist gem that I'm using as it was hooked into my Upload show action and tried to execute it's own find before I had a chance to deal with it.

这篇关于Rails的Find_by_id产生异常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！