constructor param not available in init

I try to use one Zend_Form for update and create and want to switch both through a param. But my approach using the constructor did not work. When I debug this part the property is set correctly but in the init()-method it is null again.

Maybe I do not understand the Zend_Form approach. Can you help me? Where is the error?

Form Class:

class Application_Form_User extends Zend_Form {
    const CREATE = 'create';
    const UPDATE = 'update';

    protected $_formState;

  开发者_如何学运维  public function __construct($options = null, $formState = self::CREATE) {
        parent::__construct($options);

        $this->_formState = $formState;
        $this->setAction('/user/' . $this->_formState);
    }

    public function init() {

      $this->setMethod(Zend_Form::METHOD_POST);

    if ($this->_formState == self::CREATE) {
            $password = new Zend_Form_Element_Password('password');
            $password->setRequired()
                    ->setLabel('Password:')
                    ->addFilter(new Zend_Filter_StringTrim());
    }
[..]

Usage in controller action:

$form = new Application_Form_User();
$this->view->form = $form->render();

Thank you.

---

The init() method is called inside parent::__construct($options). Try this:

public function __construct($options = null, $formState = self::CREATE) {
    $this->_formState = $formState;
    parent::__construct($options);

    $this->setAction('/user/' . $this->_formState);
}

I switched the first two lines of the constructor.