var mongoose     = require('mongoose');
var Schema       = mongoose.Schema;

var SurveyVoteSchema   = new Schema(
{
    created : {type : Date, default : Date.now},
    lastEdited : {type : Date, default : Date.now},
    value : {type: mongoose.Schema.Types.ObjectId, ref : "SurveyItem"},
    user : {type: mongoose.Schema.Types.ObjectId, ref : "User"}
});

module.exports = mongoose.model('SurveyVote', SurveyVoteSchema);

@@ -206,24 +206,93 @@
  Date.now%7D,%0A
+    survey : %7Btype: mongoose.Schema.Types.ObjectId, ref : %22Survey%22%7D,%0A
     value : 

Add SurveyVote#Survey field