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javascriptnode.jsmongodbmongoskin

pull subdocument in array mongodb

i have in mongodb this structure

{doc:
    { array_doc:[....//many documents]}
}

im using mongoskin in mongodb 2.2 with nodejs 0.8 

var code_doc='HSKD41814541211';
var db = mongo.db(perm+"@127.0.0.1:27017/database",{safe:true});
    db.collection('comercio').findAndModify(
    {
        'code':code,
        'email':email,
    },[],{$pull:{'doc.array_doc':{'doc.array_doc.code_doc':code_doc}}},{new:true},function(err,result)

i want to erase a document from array_doc array that have many documents inside, each document inside the array have a unique code_doc... i want to erase the document that match with the variable code_doc='HSKD41814541211';

tnx

Solution

  • Don't replicate your key in the value being pulled. Your $pull operator should look like this instead:

    {$pull: {'doc.array_doc': {code_doc: code_doc}}}