Ruby On Rails 3问题排序查询结果

Question

我正试图按created_at日期降序排序我的结果，但顺序。从句似乎不起作用。恐怕我已经盯着这个看太久了，如果有第二(或第三或更多)人来关注，我就会受益匪浅。

mailbox_controller.rb:

def show  
  current_user = User.find(session[:user_id])  
  @folder = Folder.where("user_id = #{current_user.id}").first  
  @msgs = @folder.messages.order("created_at DESC")  
  @messages = @msgs.where(["deleted IS NULL"] || ["deleted = ?", false]).paginate :per_page => 5, :page => params[:page]  
end

Answer 1

@msgs = @folder.messages.order("created_at DESC")
@messages = @msgs.where(["deleted IS NULL"] || ["deleted = ?", false])

应该

@messages = @folder.messages.order("created_at DESC").where("deleted = ? or deleted IS NULL", false)

Answer 2

我有一个类似的问题，它看起来像created_at你要去属于文件夹而不是消息。

你能不能试试

@msgs = @folder.messages.order("messages.created_at DESC")