Find and remove by Id a subdocument in array with mongoose

Question

I'm trying to delete a subdocuments in array with Mongoose.

My datas :

{
    "_id": {
        "$oid": "5d88dfe45feb4c06a5cfb762"
    },
    "spaces": [{
        "_id": {
            "$oid": "5d88dfe45feb4c06a5cfb76f"
        },
        "name": "Building 2",
        "subSpace": [{
            "_id": {
                "$oid": "5d88dfe45feb4c06a5cfb771"
            },
            "name": "Basement"
        }, {
            "_id": {
                "$oid": "5d88dfe45feb4c06a5cfb770"
            },
            "name": "Floors"
        }]
    }, {
        "_id": {
            "$oid": "5d88dfe45feb4c06a5cfb76c"
        },
        "name": "Building 4",
        "subSpace": [{
            "_id": {
                "$oid": "5d88dfe45feb4c06a5cfb76e"
            },
            "name": "Basement"
        }, {
            "_id": {
                "$oid": "5d88dfe45feb4c06a5cfb76d"
            },
            "name": "Floors"
        }]
    }]
}

For this example, we want to delete the subSpace Floors in Building 2 with this _id : 5d88dfe45feb4c06a5cfb771

My code (in the model) :

exports.removeSubSpaceById = (subSpaceId) => {
    Residence.findOneAndUpdate( { "spaces.subSpace._id": '5d88dfe45feb4c06a5cfb771' },
        { $pull: 
        { spaces: 
        { subSpace: 
        { _id: '5d88dfe45feb4c06a5cfb771' }}}}, function(err, result) {
            console.log(result);
    })
};

Output : console.log : my entire document But the subSpace/Basement (5d88dfe45feb4c06a5cfb771) is still in my document.

Thanks for your help.

Mukul Dev · Accepted Answer · 2019-10-10 12:42:12Z

1

Use positional operator for nested array operations. MongoDb Docs

exports.removeSubSpaceById = (subSpaceId) => {
Residence.findOneAndUpdate({ "spaces._id": '5d88dfe45feb4c06a5cfb76f' },
    {
        $pull:
        {
            "spaces.$.subSpace": { _id: "5d88dfe45feb4c06a5cfb771" }
        }
    }, function (err, result) {
        console.log(result);
    })

}

answered Oct 10, 2019 at 12:42

Mukul Dev

1968 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Find and remove by Id a subdocument in array with mongoose

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related