活动记录查询“其中”有多个选项

Question

我有这个疑问，我想减少下来，如果可能的：

@orders_in_progress = user.orders.where("state = ? OR state = ? OR state = ?, "Waiting for Payment Authorization", "Paid", "Shipped") 

我正在寻找的是这样的：

@orders_in_progress = user.orders.where("state = ?", "Waiting for Payment Authorization" || "Paid" || "Shipped) 

而且，我对这里的术语有点困惑 - 这是“一个具有多个元素条件的ActiveRecord查询”吗？