old_contents: 'use strict';
  
  var fs        = require('fs');
  var path      = require('path');
  var Sequelize = require('sequelize');
  var basename  = path.basename(module.filename);
  var env       = process.env.JAWSDB_URL || 'development';
  var config    = require(__dirname + '/../config/config.json')[env];
  var db        = {};
  
  if (config.use_env_variable) {
    var sequelize = new Sequelize(process.env.JAWSDB_URL);
  } else {
    var sequelize = new Sequelize(config.database, config.username, config.password, config);
  }
  
  fs
    .readdirSync(__dirname)
    .filter(function(file) {
      return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js');
    })
    .forEach(function(file) {
      var model = sequelize['import'](path.join(__dirname, file));
      db[model.name] = model;
    });
  
  Object.keys(db).forEach(function(modelName) {
    if (db[modelName].associate) {
      db[modelName].associate(db);
    }
  });
  
  db.sequelize = sequelize;
  db.Sequelize = Sequelize;
  
  module.exports = db;
  
new_contents: 'use strict';
  
  var fs        = require('fs');
  var path      = require('path');
  var Sequelize = require('sequelize');
  var basename  = path.basename(module.filename);
  var env       = process.env.JAWSDB_URL || 'development';
  var config    = require(__dirname + '/../config/config.json')[env];
  var db        = {};
  
  if (process.env.JAWSDB_URL) {
    var sequelize = new Sequelize(process.env.JAWSDB_URL);
  } else {
    var sequelize = new Sequelize(config.database, config.username, config.password, config);
  }
  
  fs
    .readdirSync(__dirname)
    .filter(function(file) {
      return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js');
    })
    .forEach(function(file) {
      var model = sequelize['import'](path.join(__dirname, file));
      db[model.name] = model;
    });
  
  Object.keys(db).forEach(function(modelName) {
    if (db[modelName].associate) {
      db[modelName].associate(db);
    }
  });
  
  db.sequelize = sequelize;
  db.Sequelize = Sequelize;
  
  module.exports = db;
  
subject: Update index.js