陈佳声 2021-04-23 01:36 开发者_开发技巧货币兑换1英镑=8.7903人民币1人民币=0.1138英镑50000英镑=439515.6000人民币以上为中国银行汇率信息，仅供参考杨向威
Ruby: 1.9.2 Rails: 3.0beta3 I need some help with associations in Rails 3. I have the following models (see excerpts below):
加载中,请稍侯......