title: Mongoose findOne function not being executed
body: <pre><code>  ... (... = some unrelated code)
  
    var mongoose = require('mongoose');
    var db = mongoose.connect('mongodb://localhost/test');
  
    ...
  
    dataSchema = new Schema({
       'url': { type: String, index: true },
       'user_id': { type: Schema.ObjectId, index:true }
     });
    var Website = mongoose.model('websites', dataSchema);
  
    ...
  
    Website.findOne({url: "someurl.com"},function (err, docs) {
      console.log(docs._id);
    });
  
    ... 
  </code></pre>
  
  <p>For some reason the console.log does not execute. Is there anyway to tell if I am setting up my schema correctly or see if my find function failed or any sort of indication of where the problem might be? Currently, when I run my script, no errors occur, but nothing is printed out either.</p>
  
  <p>Thanks!</p>