更新双嵌套数组 mongodb答案

【问题标题】：Update double nested array mongodb更新双嵌套数组 mongodb
【发布时间】：2019-12-07 02:56:29
【问题描述】：

我有以下包含双嵌套数组格式的文档。当“someKey”：“somevalue”和“Company”：“Company1”和“Name”：“Nandhi”时，我必须将“级别”字段更新为“高级工程师”。

文档

    { 
        "_id" : "777", 
        "someKey" : "someValue", 
        "someArray" : [
            {
                "Company" : "Company1", 
                "someNestedArray" : [
                    {
                        "name" : "Nandhi", 
                        "level" : "Junior Engineer"
                    }, 
                    {
                        "name" : "Rajan", 
                        "level" : "Senio Engineer"
                    }
                ]
            }], 
            {
                "Company" : "Company2", 
                "someNestedArray" : [
                    {
                        "name" : "Nandhi", 
                        "level" : "Junior Engineer"
                    }, 
                    {
                        "name" : "Rajan", 
                        "level" : "Senio Engineer"
                    }
                ]
            }
        ]
    }

更新我尝试过的查询

    db.Test123.updateOne(
    {"someKey" : "someValue","someArray.Company":"Company1"},
    {$set:{"someArray.$[someNestedArray].level":"Senior Developer"}},
    {arrayFilters:[{"someNestedArray.name":"Nandhi"}]}
    );

输出截图

如您所见，modifiedCount 返回 0。请对此提出建议！

【问题讨论】：

标签： mongodb mongodb-query

【解决方案1】：

你需要为每一层嵌套定义arrayFilter，试试：

db.Test123.update(
    { "someKey" : "someValue" },
    { "$set": { "someArray.$[someArrayDoc].someNestedArray.$[someNestedArrayDoc].level": "Senior Developer" } },
    { arrayFilters: [ {"someArrayDoc.Company": "Company1"}, { "someNestedArrayDoc.name": "Nandhi" } ] }
)

【讨论】：