或者是mongoid的条件

我有两个问题,

Post.where(:group_id.in => group_ids, :deleted => false) Post.where(:user_id=>user.id,:deleted=>false)

我需要使用或条件组合这些查询.我试过,

Post.where(:deleted => false).or({:user_id=>user.id},{:group_id.in => group_ids}) 和 Post.any_of({:group_id.in=>group_ids},{:user_id=>user.id}) ,但我没有得到结果.

你可以这样做:

Post.any_of({:group_id.in => group_ids, :deleted => false}, {:user_id => user.id, :deleted => false})

要么:

Post.all_of(:deleted => true, :or => [{:group_id.in => group_ids}, {:user_id => user.id}])

您可以调用selector这些表达式中的任何一个来查看将生成以获取数据的mongodb查询.