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New (slightly cleaned up) usage example, by Donald Lobo
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git-svn-id: http://svn.php.net/repository/pear/packages/HTML_QuickForm_Controller/trunk@146217 c90b9560-bf6c-de11-be94-00142212c4b1
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@sad-spirit
sad-spirit committed Dec 11, 2003
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<?php
/**
* Example for HTML_QuickForm_Controller: Statemachine
* Going to either of the two pages based on user input
*
* @author Donald Lobo <lobo@groundspring.org>
*
* $Id$
*/

require_once 'HTML/QuickForm/Controller.php';

// Load some default action handlers
require_once 'HTML/QuickForm/Action/Next.php';
require_once 'HTML/QuickForm/Action/Back.php';
require_once 'HTML/QuickForm/Action/Jump.php';
require_once 'HTML/QuickForm/Action/Display.php';

// Start the session, form-page values will be kept there
session_start();

class PageFirstActionNext extends HTML_QuickForm_Action_Next
{
function perform(&$page, $actionName)
{
// save the form values and validation status to the session
$page->isFormBuilt() or $page->buildForm();
$pageName = $page->getAttribute('name');
$data =& $page->controller->container();
$data['values'][$pageName] = $page->exportValues();
$data['valid'][$pageName] = $page->validate();

// Modal form and page is invalid: don't go further
if ($page->controller->isModal() && !$data['valid'][$pageName]) {
return $page->handle('display');
}

$nextName = $data['values'][$pageName]['iradPageAB'];
if (empty($nextName)) {
$nextName = 'page1';
}
if ($nextName == 'page2a') {
$data['valid']['page2b'] = true;
} else {
$data['valid']['page2a'] = true;
}
$next =& $page->controller->getPage($nextName);
$next->handle('jump');
}
}


class PageSecondActionNext extends HTML_QuickForm_Action_Next
{
function perform(&$page, $actionName)
{
// save the form values and validation status to the session
$page->isFormBuilt() or $page->buildForm();
$pageName = $page->getAttribute('name');
$data =& $page->controller->container();
$data['values'][$pageName] = $page->exportValues();
$data['valid'][$pageName] = $page->validate();

// Modal form and page is invalid: don't go further
if ($page->controller->isModal() && !$data['valid'][$pageName]) {
return $page->handle('display');
}

// More pages?
$next =& $page->controller->getPage('page3');
$next->handle('jump');
}
}


class PageSecondActionBack extends HTML_QuickForm_Action_Back
{
function perform(&$page, $actionName)
{
// save the form values and validation status to the session
$page->isFormBuilt() or $page->buildForm();
$pageName = $page->getAttribute('name');
$data =& $page->controller->container();
$data['values'][$pageName] = $page->exportValues();
if (!$page->controller->isModal()) {
$data['valid'][$pageName] = $page->validate();
}

$prev =& $page->controller->getPage('page1');
$prev->handle('jump');
}
}


class PageThirdActionBack extends HTML_QuickForm_Action_Back
{
function perform(&$page, $actionName)
{
// save the form values and validation status to the session
$page->isFormBuilt() or $page->buildForm();
$pageName = $page->getAttribute('name');
$data =& $page->controller->container();
$data['values'][$pageName] = $page->exportValues();
if (!$page->controller->isModal()) {
$data['valid'][$pageName] = $page->validate();
}

$prev =& $page->controller->getPage($data['values']['page1']['iradPageAB']);
$prev->handle('jump');
}
}


class PageFirst extends HTML_QuickForm_Page
{
function buildForm()
{
$this->_formBuilt = true;

$this->addElement('header', null, 'StateMachine page 1 of 3');

$radio[] = &$this->createElement('radio', null, null, 'Page 2A', 'page2a');
$radio[] = &$this->createElement('radio', null, null, 'Page 2B', 'page2b');
$this->addGroup($radio, 'iradPageAB', 'Proceed to page:');

$this->addElement('submit', $this->getButtonName('next'), 'Next >>');

$this->addRule('iradYesNo', 'Select the page', 'required');

$this->setDefaultAction('next');
}
}

class PageSecondAlpha extends HTML_QuickForm_Page
{
function buildForm()
{
$this->_formBuilt = true;

$this->addElement('header', null, 'StateMachine page 2A of 3');

$name['last'] = &$this->createElement('text', 'last', null, array('size' => 30));
$name['first'] = &$this->createElement('text', 'first', null, array('size' => 20));
$this->addGroup($name, 'name', 'Name (last, first):', ',&nbsp;');

$prevnext[] =& $this->createElement('submit', $this->getButtonName('back'), '<< Back');
$prevnext[] =& $this->createElement('submit', $this->getButtonName('next'), 'Next >>');
$this->addGroup($prevnext, null, '', '&nbsp;', false);

$this->addGroupRule('name', array('last' => array(array('Last name is required', 'required'))));

$this->setDefaultAction('next');
}
}

class PageSecondBeta extends HTML_QuickForm_Page
{
function buildForm()
{
$this->_formBuilt = true;

$this->addElement('header', null, 'StateMachine page 2B of 3');

$this->addElement('textarea', 'itxaTest', 'Description:', array('rows' => 5, 'cols' => 40));

$prevnext[] =& $this->createElement('submit', $this->getButtonName('back'), '<< Back');
$prevnext[] =& $this->createElement('submit', $this->getButtonName('next'), 'Next >>');
$this->addGroup($prevnext, null, '', '&nbsp;', false);

$this->addRule('itxaTest', 'Say something!', 'required');

$this->setDefaultAction('next');
}
}

class PageThird extends HTML_QuickForm_Page
{
function buildForm()
{
$this->_formBuilt = true;

$this->addElement('header', null, 'StateMachine page 3 of 3');

$this->addElement('text', 'fourthTextBox', 'Final Text:', array('size' => 20, 'maxlen' => 40));

$prevnext[] =& $this->createElement('submit', $this->getButtonName('back'), '<< Back');
$prevnext[] =& $this->createElement('submit', $this->getButtonName('next'), 'Finish');
$this->addGroup($prevnext, null, '', '&nbsp;', false);

$this->addRule('fourthTextBox', 'Say something!', 'required');

$this->setDefaultAction('next');
}
}

class ActionProcess extends HTML_QuickForm_Action
{
function perform(&$page, $actionName)
{
echo "Submit successful!<br>\n<pre>\n";
var_dump($page->controller->exportValues());
echo "\n</pre>\n";
}
}

$statemachine =& new HTML_QuickForm_Controller('StateMachine');

$page1 =& new PageFirst('page1');
$page2a =& new PageSecondAlpha('page2a');
$page2b =& new PageSecondBeta('page2b');
$page3 =& new PageThird('page3');

$statemachine->addPage($page1);
$statemachine->addPage($page2a);
$statemachine->addPage($page2b);
$statemachine->addPage($page3);

$page1->addAction('next', new PageFirstActionNext());
$page2a->addAction('next', new PageSecondActionNext());
$page2a->addAction('back', new PageSecondActionBack());
$page2b->addAction('next', new PageSecondActionNext());
$page2b->addAction('back', new PageSecondActionBack());
$page3->addAction('back', new PageThirdActionBack());

// We actually add these handlers here for the sake of example
// They can be automatically loaded and added by the controller
$statemachine->addAction('display', new HTML_QuickForm_Action_Display());
$statemachine->addAction('next', new HTML_QuickForm_Action_Next());
$statemachine->addAction('back', new HTML_QuickForm_Action_Back());
$statemachine->addAction('jump', new HTML_QuickForm_Action_Jump());

// This is the action we should always define ourselves
$statemachine->addAction('process', new ActionProcess());

$statemachine->run();
?>

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