public static function login()
{
$username = $_POST["username"];
$password = $_POST["password"];
$user = User::findUserByLoginInfo($username, $password);
if ($user) {
$_SESSION['user'] = $user->user_id;
Redirect::to('/drink', array('message' => 'User has been logged in.'));
} else {
Redirect::to('/login', array('message' => 'No such user or incorrect password'));
}
}
