在Rails中从ActiveRecord :: RecordNotFound救援(rescue from ActiveRecord::RecordNotFound in Rails)

 用户只能编辑自己的帖子，所以我使用以下内容来检查用户是否可以输入编辑表单： 
 
  def edit
    @post = Load.find(:first, :conditions => { :user_id => session[:user_id], :id => params[:id]})
  rescue ActiveRecord::RecordNotFound
    flash[:notice] = "Wrong post it"
    redirect_to :action => 'index'
  end
 
 但它不工作，任何想法我做错了什么？ 

A user can only edit its own post, so I use the following to check if a user can enter the edit form:
 
  def edit
    @post = Load.find(:first, :conditions => { :user_id => session[:user_id], :id => params[:id]})
  rescue ActiveRecord::RecordNotFound
    flash[:notice] = "Wrong post it"
    redirect_to :action => 'index'
  end
 
But it is not working, any ideas what I am doing wrong?

原文：https://stackoverflow.com/questions/2336593