为什么我无法获取所有喜欢发帖的用户?

时间:2013-01-05 23:13:46

标签: ruby-on-rails

为什么会出现此错误?我确实在用户表中有'last_signed_in_at'列。

  

Mysql2 ::错误:'order clause'中的未知列'last_signed_in_at'

我的代码是

控制器

@users = @post.likes

查看

<% @users.order("last_signed_in_at DESC").limit(3).each do |user| %>
    <li>
        <%= user.profile.nickname %>
        <%= user.last_active_at %>    
    </li>
<% end %>

&lt;%= debug(@users)%&gt;

[#<ActsAsVotable::Vote id: 2, votable_id: 4, votable_type: "Post", voter_id: 1, voter_type: "User", vote_flag: true, created_at: "2012-12-22 13:30:37", updated_at: "2013-01-01 18:55:51">, 
 #<ActsAsVotable::Vote id: 7, votable_id: 4, votable_type: "Post", voter_id: 2, voter_type: "User", vote_flag: true, created_at: "2012-12-23 14:47:04", updated_at: "2013-01-02 00:36:48">]

1 个答案:

答案 0 :(得分:1)

你的范围是ActsAsVotable :: Vote,但不知何故等待用户:)

控制器:

@users = User.where(:id => @post.likes.map(&:voter_id)).order("last_signed_in_at DESC").limit(3)

查看:

<% @users.each do |user| %>