Need help in mongodb $pull - mongodb

Question

I have a mongodb document that is like this:
{
"_id": ObjectId("5231718f042f8bc215000007"),
"ApplicationId": "YVo9bEQiDLg2",
"Network": {
"Millennial Media": {
"Active": true,
"RefreshInterval": 300000,
"NetworkId": 352,
"App": [
{
"AppId": "APID - Banner",
"AppValue": "76970",
"Priority": 100
}
]
},
"Buzzcity": {
"Active": true,
"RefreshInterval": 300000,
"NetworkId": 353,
"App": [
{
"AppId": "Partner ID",
"AppValue": "80624",
"Priority": 100
}
]
},
"Adiquity": {
"Active": true,
"RefreshInterval": 300000,
"NetworkId": 354,
"App": [
{
"AppId": "package",
"AppValue": "com.ristomobile.giftntake",
"Priority": 0
},
{
"AppId": "Site ID",
"AppValue": "adqkkqkk-14eo91zj-qv6qt",
"Priority": 100
},
{
"AppId": "appName",
"AppValue": "Gift&Take",
"Priority": 0
}
]
},
"Smaato": {
"Active": true,
"RefreshInterval": 300000,
"NetworkId": 351,
"App": [
{
"AppId": "Adspace ID",
"AppValue": "65766605",
"Priority": 100
}
],
"Partner": [
{
"PartnerId": "Publisher ID",
"PartnerValue": "923862008"
}
]
},
"AdNear": {
"Active": true,
"RefreshInterval": 300000,
"NetworkId": 367,
"Partner": [
{
"PartnerId": "pubid",
"PartnerValue": "rs-1328"
},
{
"PartnerId": "api_key",
"PartnerValue": "RSW78:QH8HHM389M7YP"
}
]
},
"twinpine": {
"Active": true,
"RefreshInterval": 300000,
"NetworkId": 371,
"Partner": [
{
"PartnerId": "pid",
"PartnerValue": "1551a74d1df075a"
},
{
"PartnerId": "alid",
"PartnerValue": "405"
}
]
},
"Vserv.mobi": {
"Active": true,
"RefreshInterval": 300000,
"NetworkId": 370,
"Partner": [
{
"PartnerId": "Zone Id",
"PartnerValue": "32024"
},
{
"PartnerId": "Publisher Id",
"PartnerValue": "12649"
}
]
}
},
"LastUpdate": ISODate("2013-06-24T01:44:22.865Z")
}
and i tried to pull away the Millenial Media data:
db.MediationSetup.update(
{
ApplicationId: "YVo9bEQiDLg2"
},
{
$pull: {
Network: {
"Millennial Media": {
"Active": true,
"RefreshInterval": 300000,
"NetworkId": 352,
"App": [
{
"AppId": "APID - Banner",
"AppValue": "76970",
"Priority": 100
}
]
}
}
}
})
but it gives
Cannot apply $pull/$pullAll modifier to non-array
I am puzzled, I am indeed pulling an array! so what is going on?

Answer 1

When I understood you correctly, you want to remove an entry from the array in Network.Millennial Media.App. In that case you have to reference a field nested in sub-documents by using the dot-notation:
db.MediationSetup.update(
{
ApplicationId: "YVo9bEQiDLg2"
},
{
$pull: { "Network.Millennial Media.App": {
"AppId": "APID - Banner",
"AppValue": "76970",
"Priority": 100
}
}
});