作者：IT人 来源：酷勤网 酷勤网收集 2008-05-29
摘要
Rails2.1新特性之一：has-one-through；Rails2.1新特性之二：Gem Dependencies；Rails2.1新特性之三：Dirty Objects；Rails2.1新特性之四：Partial Updates；Rails2.1新特性之五：具有has_finder功能的named_scope；Rails2.1新特性之六：UTC-based Migration
Rails2.1新特性之一：has-one-through
Rails2.1新特性之二：Gem Dependencies
Rails2.1新特性之三：Dirty Objects
Rails2.1新特性之四：Partial Updates
Rails2.1新特性之五：具有has_finder功能的named_scope
Rails2.1新特性之六：UTC-based Migration
Rails2.1新特性之七：Easier Timezones