MongoDB delete element from array

Question

I want to delete element in array

Here I find such element of array

db.getCollection('files').aggregate([{'$unwind': "$Package.PackageBody.InvestmentVehicle"},{'$match': { "Package.PackageBody.InvestmentVehicle.Name": "file.txt"}}])

It's better in one command.

Possible duplicate of Delete an element from an array of an array in MongoDb — user1211
– user1211, Commented Jul 17, 2017 at 18:10

Vladimir Shebuniayeu · Accepted Answer · 2017-07-19 09:48:42Z

0

I found the solution, it delete element of array, but unfortunately leave NULL ,instead of total delete.

db.getCollection('typeE').update(
    { "Package.PackageBody.InvestmentVehicle.Operation.LegalName": "FileName" },
    {
        "$unset": {
            "Package.PackageBody.InvestmentVehicle.$": ""
        }
    },false,true
)

answered Jul 19, 2017 at 9:48

Vladimir Shebuniayeu

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