@CCTV国际时讯 消息,据路透社报道,当地时间21日,捷克布拉格市中心的一所学校发生枪击事件,当地警方在社交媒体发布消息称目前已有人员伤亡,但没有说明其他细节。
Is there a compact way with ActiveRecord to query for what id it\'s going to use next if an object was going to be p开发者_如何学Pythonersisted to the database? In SQL, a query like this would look so