本文介绍了匹配数组内的多个条件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有以下几点:
offers: [ {user: 'jon', price: 200, selected: false}, {user: 'ted', price: 100, selected: true} ]我正在尝试进行匹配,以获取所有用户被 ted 和选择为 true 的报价对象.
I am trying to do a match that will get all offer objects where user is ted and selected is true.
我尝试了以下方法:
$match: { "offers.user": "ted" "offers.selected": true }但是,如果数组中有一个 ted 和一个选定的 true 并且在同一对象内不需要该组合,这会给我文档.
But this will give me the document if there is a ted and a selected true inside the array and not necessary that combination inside the same object.
推荐答案您需要使用 $elemMatch 查询运算符以匹配数组内的多个条件
You need to use $elemMatch query operator to match multiple criteria inside an array
{ "$match": { "offers": { "$elemMatch": { "user": "ted" "selected": true } } }}更多推荐
匹配数组内的多个条件
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