<?php

class My_Form_Auth extends Zend_Form
{
    public function __construct()
    {
        $this->setAction('/user/login')
             ->setMethod('post');

        // élément nom :
        $username = $this->createElement('text', 'username');
        $username->addValidator('alnum')
                 ->addValidator('regex', false, array('/^[a-z]+/'))
                 ->addValidator('stringLength', false, array(6, 20))
                 ->setRequired(true)
                 ->addFilter('StringToLower');

        // élément mot de passe :
        $password = $this->createElement('password', 'password');
        $password->addValidator('StringLength', false, array(6))
                 ->setRequired(true);

        // Ajout des éléments au formulaire
        $this->addElement($username)
             ->addElement($password)
             // addElement() agit comme une fabrique qui crée un bouton 'Login'
             ->addElement('submit', 'login', array('label' => 'Login'));
    }
}