ruby on rails 3-排序多态注释

Question

shared/_comments.html.haml

#comments
  - commentable.comments.each do |comment|
    = link_to image_tag(avatar_url comment.user_id,36), :controller => 'users', :action => 'show', :id => comment.user_id
    = comment.content
    %br

如何通过"created_at DESC"对多态注释进行排序？

Answer 1

在您的模型中：

scope :by_created_at, order('created_at DESC')

那么在你看来：

- commentable.comments.by_created_at.each do |comment|