查询多条记录时如何避免ActiveRecord :: RecordNotFound异常

Question

我有这个代码:

Article.find([1,2,3])

但是数据库中只存在记录1和2.我得到这个例外:

"ActiveRecord::RecordNotFound (Couldn't find all Offers with IDs (1,2,3) (found 2 results, but was looking for 3))"

有没有办法只获取现有记录而不是例外？

Answer 1

Article.find_all_by_id([1,2,3]) 是要走的路!

Answer 2

Rails 3+,ruby 1.9+方式:

Article.where(id: [1,2,3])