-
[北京][12-15] Rails Girls Beijng [97 个 girls 报名了] at November 20, 2012
-
[北京][12-15] Rails Girls Beijng [97 个 girls 报名了] at November 20, 2012
@sundevilyang 先报个名，当志愿者吧～哈哈
-
上海归来，写点感受，及读音的重要性 at November 19, 2012
Mongoid 和 Heroku ... 好像就没遇见几个读正确的，包括一些公司的技术负责人，自己读正确的反而不好意思了
-
我的 slide: 最佳實踐如何變成了最慢實踐 at November 19, 2012
都是很实用的干货，赞！
-
from Ruby to Go at November 18, 2012
-
from Ruby to Go at November 18, 2012
-
如果让你写 “Just Enough Ruby”，你会写哪些内容？ at November 18, 2012
-
让人蛋痛的 IE6 at November 18, 2012
-
我的演讲稿 追加未删节完整版 at November 18, 2012
看完了，很棒！
-
终于支持删贴了 at November 16, 2012
不要点编辑才能删嘛，直接把删除的图标放在回复后面不好吗？
-
哈哈，真的可以盗用别人的邮件地址！ at November 15, 2012
#5 楼 @I_AM_NOT_DHH 让别人给你汇钱的时候，你能告诉他一个错误的银行卡号么....
-
哈哈，真的可以盗用别人的邮件地址！ at November 15, 2012
#3 楼 @I_AM_NOT_DHH 重新注册一个
-
阿里系同学召集贴 at November 15, 2012
怎么都不现身呢，让我等瞻仰一下～
-
问个 devise 的问题 at November 15, 2012
用腾讯的企业邮箱发信完事
-
创业团队是各司其职还是互相可替换 at November 15, 2012
-
上传头像且能在上传前进行裁剪的 GEM？ at November 14, 2012
html5 或者 flash
-
第一期长沙 Untitled 互联网线下聚会 (明天) at November 09, 2012
哈哈 不错的海报！
-
大家一般怎么组织 api 的类结构 at November 09, 2012
-
无法删帖 at November 08, 2012
我靠，想搞基啊～
-
比较 Ruby on Rails 和 CakePHP at November 08, 2012
怎么又拿语言和框架比，你应该说 Rails 和 CakePHP 吧？只看标题没看链接 -
晚上开始学习 rspec at November 07, 2012
minitest 如何？
-
[北京] 路透社招聘 Principle Rails 程序员 at November 07, 2012
Oh, 6+ years...
-
买了票，但大会两天因故不能出席，赠送给第一个回复者 at November 06, 2012
好人一生平安
-
ActiveRecord 求救？？ at November 06, 2012
# coding: utf-8 class Message include Mongoid::Document include Mongoid::Timestamps::Created include Mongoid::CounterCache include Mongoid::DelayedDocument field :content field :sender_id field :receiver_id field :readed, :type => Boolean, :default => false embedded_in :dialog counter_cache :name => :dialog, :inverse_of => :messages belongs_to :sender, :class_name => 'User', :foreign_key => 'sender_id' belongs_to :receiver, :class_name => 'User', :foreign_key => 'receiver_id' validates :content, :presence => true, :length => { :maximum => 140 } index :receiver_id => 1 index :created_at => -1 default_scope desc('created_at') # A little confused. def self.post(sender_id, receiver_id, content) return if sender_id == receiver_id other_dialog = Dialog.find_or_create_by(:from_user_id => receiver_id, :to_user_id => sender_id) params = { :content => content, :sender_id => sender_id, :receiver_id => receiver_id } other_dialog.messages.create(params) self.perform_async(:send_message_to_self, params) end def self.send_message_to_self(opts) self_dialog = Dialog.find_or_create_by(:from_user_id => opts['sender_id'], :to_user_id => opts['receiver_id']) self_dialog.messages.create(opts) User.where(:_id => opts['receiver_id']).first.inc(:messages_count, 1) end after_create do self.dialog.update_attributes( :last_reply_user_id => self.sender_id, :last_reply_user_login => self.sender.login, :last_reply_content => self.content, :updated_at => self.created_at ) end end -
ActiveRecord 如何根据 association 排序 at November 06, 2012
ruby_exam.results.includes(:user).order('results.score DESC').collect{ |result| result.user }