old_contents: var mongoose = require('mongoose'),
  	uuid = require('uuid/v1'),
  	Schema = mongoose.Schema,
  	PlayerSchema = new Schema({
  		name: String
  	}, {
  		collection: 'players'
  	});
  
  module.exports = mongoose.model('Player', PlayerSchema);
  
new_contents: var mongoose = require('mongoose'),
  	uuid = require('uuid/v1'),
  	Schema = mongoose.Schema,
  	PlayerSchema = new Schema({
  		name: String,
  		img: String
  	}, {
  		collection: 'players'
  	});
  
  module.exports = mongoose.model('Player', PlayerSchema);
  
subject: Add 'img' attribute to PlayerModel schema