Querying after populate in Mongoose

Question

I\'m pretty new to Mongoose and MongoDB in general so I\'m having a difficult time figuring out if something like this is possible:

Item = new Schema({
             


        

Answer 1

@aaronheckmann 's answer worked for me but I had to replace return doc.tags.length; to return doc.tags != null; because that field contain null if it doesn't match with the conditions written inside populate. So the final code:

query....
.exec(function(err, docs){
   docs = docs.filter(function(doc){
     return doc.tags != null;
   })
   // do stuff with docs
});