<?php

class myLoginValidator extends sfValidator
{
	public function initialize ($context, $parameters = null)
	{
		//initialize parent
		parent::initialize($context);

		//set defaults
		$this->setParameter('login_error','Invalid input');

		$this->getParameterHolder()->add($parameters);

		return true;
	}

	public function execute(&$value, &$error)
	{
		$passowrd_param = $this->getParameter('password');
		$password = $this->getContext()->getRequest()->getParameter($password_param);

		$login = $value;

		$c = new Criteria();
		$c->add(UserPeer::NICKNAME, $login);
		$user = UserPeer::doSelectOne($c);

		//nickname exists?
		if ($user)
		{
			//password is OK?
			if (sha1 ($user->getSalt().$password) == $user->getSha1Password())
			{
			  $this->getContext()->getUser()->signIn($user);

				return true;
			}
		}

		$error= $this->getParameter('login_error');
		return false;
		}
}