<?php

/**
* Check whether user has permission to do something. Comparison is done
* with bitwise operations. Column name in roles table could be specified
* as second parameter.
*
* @uses   User::role() where role() should be relationship with Role::class
* @param  int $permission
* @param  string|null $name
* @return bool
*/
public function hasPermission($permission, $name = null)
{
    $permissionName = isset($name) ? $name : 'permission';

    $result = $this->role->$permissionName & $permission;

    return ($result == $permission)
        ? true : false;
}