模型:
{
"_id" : "a62107e10f388c90a3eb2d7634357c8b",
"_appid" : [
{
"_id" : "1815aaa7f581c838",
"events" : [
{
"_id" : "_TB_launch",
"boday" : [
{
"VERSIONSCODE" : "17",
"NETWORK" : "cmwap",
"VERSIONSNAME" : "2.4.0",
"IMSI" : "460026319223205",
"PACKAGENAME" : "com.androidbox.astjxmjmmshareMM",
"CHANNELID" : "xmjmm17",
"CHANNELNAME" : "浠..?.M寰.俊?.韩?.?1.x锛.,
"eventid" : "_TB_launch",
"uuid" : "a62107e10f388c90a3eb2d7634357c8b",
"creattime" : "1366300799766",
"ts" : ISODate("2013-04-25T06:28:36.403Z")
}
],
"size" : 1
}
],
"size" : 1
}
],
"size" : 1
}
> db.events.update(
{
"_id":"039e569770cec5ff3811e7410233ed27",
"_appid._id":"e880db04064b03bc534575c7f831a83a",
"_appid.events._id":"_TB_launch"
},
{
"$push":{
"_appid.$.events.$.boday":{"111":"123123"}
}
}
);
如果没有包含数组的相应查询字段,则无法应用位置运算符。
为什么?!!
答案 0 :(得分:2)
您正在尝试引用多个级别的嵌入 - 您只能有一个位置$运算符。在this feature request实施之前,您将无法执行此类操作。
答案 1 :(得分:0)
Response Here 简短的回答是,“不”,但使用嵌套数组得到 棘手。这是一个例子:
db.foo.save({_id: 1, a1:[{_a1id:1, a2:[{a2id:1, a3:[{a3id:1, a4:"data"}]}]}]})
db.foo.find()
{ "_id" : 1, "a1" : [
{ "_a1id" : 1, "a2" : [
{ "a2id" : 1, "a3" : [
{ "a3id" : 1, "a4" : "data" }
] }
] }
] }
db.foo.update({_id:1}, {$push:{"a1.0.a2.0.a3":{a3id:2, a4:"other data"}}})
db.foo.find()
{ "_id" : 1, "a1" : [
{ "_a1id" : 1, "a2" : [
{ "a2id" : 1, "a3" : [
{ "a3id" : 1, "a4" : "data" },
{ "a3id" : 2, "a4" : "other data" }
] }
] }
] }
如果您不确定某个子文档位于何处 数组,你可以使用一个位置运算符,Mongo将更新 匹配的第一个子文档。例如:
db.foo.update({_id:1, "a1.a2.a2id":1}, {$push:{"a1.0.a2.$.a3":{a3id:2, a4:"other data"}}})