Question

我想将@question.id与数据库表Work中的值进行比较。我怎么能在问题控制器的show动作中做到这一点？

我想将@question.id与@community.community_activity进行比较，但当我在问题控制器中执行此操作时，@community为nil：

You have a nil object when you didn't expect it!
The error occurred while evaluating nil.community_activity

如何解决这个问题？

if @question.id != @community.community_activity.for_communities(60).object_id and current_user.role.title.strip == "Test" 
  redirect_to 'public/access_denied.html'
  return

Answer 1

根据您向我们展示的内容，我所能提出的建议如下：

if @community.nil? || (@question.id != @community.community_activity.for_communities(60).id && current_user.role.title.strip == "Test")
  redirect_to '/access_denied.html'
  return
end

或许这更合适：

if (@community.nil? || @question.id != @community.community_activity.for_communities(60).id) && current_user.role.title.strip == "Test"
  redirect_to '/access_denied.html'
  return
end

比较控制器内两个不同模型的属性

1 个答案: