title: mongoose updating a field in a MongoDB not working
body: <p>I have this code </p>
  
  <pre><code>var UserSchema = new Schema({
      Username: {type: String, index: true},
      Password: String,
      Email: String,
      Points: {type: Number, default: 0}
  });
  </code></pre>
  
  <p>[...]</p>
  
  <pre><code>    var User = db.model('User');
     /*
      * Function to save the points in the user's account
      */
      function savePoints(name, points){
          if(name != "unregistered user"){
          User.find({Username: name}, function(err, users){
  
              var oldPoints = users[0].Points;
              var newPoints = oldPoints + points;
  
              User.update({name: name}, { $inc: {Points: newPoints}}, function(err){
                  if(err){
                      console.log("some error happened when update");
                  }
                  else{
                      console.log("update successfull! with name = " + name);
                      User.find({Username: name}, function(err, users) { 
                          console.log("updated : " + users[0].Points);
                      });
                  }
              });
  
          });
      }
  }
  
  savePoints("Masiar", 666);
  </code></pre>
  
  <p>I would like to update my user (by finding it with its name) by 
  updating his/her points. I'm sure oldPoints and points contain a 
  value, but still my user keep being at zero points. The console prints 
  "update successful". </p>
  
  <p>What am I doing wrong? Sorry for the stupid / noob question. </p>
  
  <p>Masiar </p>