User class

• Usual additions
• ConnectionManager class
• daoBuilder function
• User class
• getUser function
• getLocale function

The authorization of business objects requires an user object and a function that provides it. The user object must inherit UserInfo class and implement its isInRole() method. The method decides whether the user is member of the specified role.

The following code shows an implementation of the User class:

'use strict';

var util = require('util');
var UserInfo = require('../source/system/user-info.js');

function User (userCode, userName, email, roles) {
  User.super_.call(this, userCode);

  this.userName = userName;
  this.email = email;
  this.roles = roles;

  Object.freeze(this);
}
util.inherits(User, UserInfo);

User.prototype.isInRole = function (role) {
  return this.roles.some(function (userRole) {
    return userRole === role;
  });
};

User.prototype.isInSomeRole = function (roles) {
  return this.roles.some(function (userRole) {
    return roles.some(function (role) {
      return userRole === role;
    });
  });
};

User.prototype.isInEveryRole = function (roles) {
  return roles.every(function (role) {
    return User.roles.some(function (userRole) {
      return userRole === role;
    });
  });
};

module.exports = User;

For demonstration purposes the class implements two additional methods. The isInSomeRole() method returns true when the user is member of any of the specified roles, otherwise returns false. The isInEveryRole() method returns true when the user is member of all of the specified roles, otherwise returns false.