var UsersController = Class('UsersController').inherits(BaseController)({
  beforeActions : [
    {
      before : ['_loadUser'], \\ An array of functions or current controller method names.
      actions : ['show', 'edit', 'update', 'destroy']
    }
  ],
  prototype : {
    _loadUser : function(req, res, next) {
      User.query().where('id', req.params.id).then(function(result) {
        res.locals.user = result[0];
        next()
      });
    },
    show: function(req, res, next) {
      res.format({
        json : function() {
          res.json(res.locals.user) // _loadUser method ran after show method, so req.locals.user is available here
        },
        html: function() {
          res.render('user/show.html') // same here, req.locals.user is available in the template.
        }
      });
    }
  }
});