创建时的用户ID始终返回0，无法使用

users table
-----------------
id  mail  pass  role  etc...

pais(country) table
---------------
id  countryname

users_has_pais
---------------
id  user_id  pais_id

class Application_Model_UsersMapper
{
protected $_dbTable;
protected $_salt = \'$2a$07$lalalalalasomething$\';

public function setDbTable($dbTable)
{
    if (is_string($dbTable)) {
        $dbTable = new $dbTable();
    }
    if (!$dbTable instanceof Zend_Db_Table_Abstract) {
        throw new Exception(\'Invalid table data gateway provided\');
    }
    $this->_dbTable = $dbTable;
    return $this;
}

public function getDbTable()
{
    if (null === $this->_dbTable) {
        $this->setDbTable(\'Application_Model_DbTable_Users\');
    }
    return $this->_dbTable;
}

public function save(Application_Model_Users $user)
{
    $data = array(
        \'email\'   => $user->getEmail(),
        \'password\' => crypt($user->getPassword(), $this->_salt),
        \'fecha\' => Zend_Date::now()->toString(\'yyyyMMddHHmmss\'),
        \'url\' => $user->getUrl(),
        \'responsable\' => $user->getResponsable(),
        \'role\' => $user->getRole(),
        \'id\' => $user->getId(),
    );

    if (0 === ($id = $user->getId())) {
        //unset($data[\'id\']);
        $this->getDbTable()->insert($data);
        //los paises estan en otra table
        require_once \'UserHasPais.php\';
        $paisTableModel = new Model_UsersHasPais();
        $paisTableModel->updateUserPais($id, $user->getPais());

    } else {
        $this->getDbTable()->update($data, array(\'id = ?\' => $id));
    }
}

public function find($id, Application_Model_Users $user)
{
    $result = $this->getDbTable()->find($id);
    if (0 == count($result)) {
        return;
    }
    $row = $result->current();
    $user->setId($row->id)
              ->setEmail($row->email)
              ->setPassword($row->password)
              ->setFecha($row->fecha)
              ->setUrl($row->url)
              ->setResponsable($row->responsable)
              ->setRole($row->role);
}

public function fetchAll()
{
    $resultSet = $this->getDbTable()->fetchAll();
    $entries   = array();
    foreach ($resultSet as $row) {
        $entry = new Application_Model_Guestbook();
        $entry->setId($row->id)
              ->setEmail($row->email)
              ->setPassword($row->password)
              ->setFecha($row->fecha)
              ->setUrl($row->url)
              ->setResponsable($row->responsable)
              ->setRole($row->role);
        $entries[] = $entry;
    }
    return $entries;
}
}

class Application_Model_Users
{
protected $_responsable;
protected $_fecha;
protected $_url;
protected $_role;
protected $_password;
protected $_email;
protected $_pais;
protected $_id;

public function __construct(array $options = null)
{
    if (is_array($options)) {
        $this->setOptions($options);
    }
}

public function __set($name, $value)
{
    $method = \'set\' . $name;
    if ((\'mapper\' == $name) || !method_exists($this, $method)) {
        throw new Exception(\'Invalid user property\');
    }
    $this->$method($value);
}

public function __get($name)
{
    $method = \'get\' . $name;
    if ((\'mapper\' == $name) || !method_exists($this, $method)) {
        throw new Exception(\'Invalid user property\');
    }
    return $this->$method();
}

public function setOptions(array $options)
{
    $methods = get_class_methods($this);
    foreach ($options as $key => $value) {
        $method = \'set\' . ucfirst($key);
        if (in_array($method, $methods)) {
            $this->$method($value);
        }
    }
    return $this;
}

public function setId($id)
{
    $this->_id = (int) $id;
    return $this;
}

public function getId()
{
    return $this->_id;
}
}

public function save(Application_Model_Users $user)
{
    $data = array(
        \'email\'   => $user->getEmail(),
        \'password\' => crypt($user->getPassword(), $this->_salt),
        \'fecha\' => Zend_Date::now()->toString(\'yyyyMMddHHmmss\'),
        \'url\' => $user->getUrl(),
        \'responsable\' => $user->getResponsable(),
        \'role\' => $user->getRole(),
        \'id\' => $user->getId(),
    );

    if (0 === ($id = $user->getId())) {
        //unset($data[\'id\']);
        //this is a test
        $user_id = $this->getDbTable()->createRow();
        $user_id->email = $data[\'email\'];
        $user_id->password = crypt($data[\'password\'], $this->_salt);
        $user_id->url = $data[\'url\'];
        $user_id->responsable = $data[\'responsable\'];
        $user_id->role = $data[\'role\'];
        $user_id->fecha = Zend_Date::now()->toString(\'yyyyMMddHHmmss\');
        $user_id->save();            
        //till here

        //los paises estan en otra table
        require_once \'UserHasPais.php\';
        $paisTableModel = new Model_UsersHasPais();
        $paisTableModel->updateUserPais($user_id->id, $user->getPais());

    } else {
        $this->getDbTable()->update($data, array(\'id = ?\' => $id));
    }
}