mongoose nested object code example

Example 1: mongoose iupdate nested

blog.findByIdAndUpdate(entityId, {$set: {'meta.favs': 56}}, function(err, doc) {
    console.log(doc);
});

Example 2: mongoose select nested

var fields = { 'properties.OBJECTID': 1, 'properties.TIMESTAMP': 1 };
var query = Feature.find({id: 1}).select(fields);

Example 3: mongoose nested require

var jobSchema = Schema({
  negotiation: { state: { type: String, required: hasNegotiation } }
});

function hasNegotiation() {
  return this.negotiation && Object.keys(this.negotiation).length > 0;
}

Example 4: mongoose nested object without id

var subSchema = mongoose.Schema({
    //your subschema content
},{ _id : false });

Example 5: mongoose find by nested property

System.findOne({ 'nodes.main.Alpha': 23000}, function(err, system){
   if(err){console.log(err);}
   else{console.log(system);}
 });