我有Items
个对象集合,说:
[{"Item" : "Apple",
"Company" : "American Foods",
"Items" : [{"name" : "Banana", "name" : "Orange", "name" : "Apple", "name" : "Avocado"}]},
{"Item" : "Mango",
"Company" : "American Foods",
"Items" : [{"name" : "Banana", "name" : "Orange", "name" : "Apple", "name" : "Avocado"}]},
{"Item" : "Banana",
"Company" : "Indian Foods",
"Items" : [{"name" : "Banana", "name" : "Orange", "name" : "Apple", "name" : "Avocado"}]}
]
我想编写一个mongo聚合查询,该查询需要输入以返回与任何Item = Items[i].name
和Company = input
匹配的所有文档。
假设如果我使用input = American Foods
搜索,那么查询将返回集合中的1个文档(因为Item中没有芒果,而香蕉公司是Indian Foods):
{"Item" : "Apple",
"Company" : "American Foods",
"Items" : [{"name" : "Banana", "name" : "Orange", "name" : "Apple", "name" : "Avocado"}]}
答案 0 :(得分:1)
Nodejs +猫鼬
您可以尝试这种方式吗?
gradle
答案 1 :(得分:1)
您需要使用"No"
运算符:
<iframe width="100%" height="100%" frameborder="0" allowtransparency="true" src="https://www.surveymonkey.com/r/XXXXX?embedded=1"></iframe>
注意:您的$expr
数组的JSON语法错误,应该包含单独的项