foreach ($this->viewData as $key => $value) {
$$key = $value;
}

extract($this->viewData);

directory = $directory;
}

/**
*
* Sets the controller default action.
*
* @param string $class The class to call.
* @param string $method The method to dispatch.
*
* @return void
*
*/
function setDefault($class, $method) {
$this->default = $this->forward($class, $method);
}

/**
*
* Sets the controller error action.
*
* @param string $class The class to call.
* @param string $method The method to dispatch.
*
* @return void
*
*/
function setError($class, $method) {
$this->error = $this->forward($class, $method);
}

/**
*
* Sets the controller error controller action.
*
* @param string $class The class to call.
* @param string $method The method to dispatch.
*
* @return void
*
*/
function addPreAction($class, $method) {
$this->pre_action[] = $this->forward($class, $method);
}

/**
*
* Dispatches the pre actions and page controller class.
*
* @param object $request The request object.
*
* @return void
*
*/
function dispatch(&$request) {
$action = $this->requestHandler($request);

while ($action) {
foreach ($this->pre_action as $pre_action) {
$result = $this->execute($pre_action);

if ($result) {
$action = $result;

break;
}
}

$action = $this->execute($action);
}
}

/**
*
* Executes a controller class.
*
* @param array $action The action to be executed.
*
* @return array $action Returns another action so the controller can be forwarded. If there is no foward action NULL is returned.
*
*/
function execute($action) {
$file = $this->directory . basename($action[’class’]) . ‘.php’;

if (file_exists($file)) {
include_once($file);

$controller = ‘Controller’ . preg_replace(’/[^a-zZ-Z0-9]/’, NULL, $action[’class’]);

$class = new $controller($this->registry);

if (method_exists($class, $action[’method’])) {
$action = $class->{$action[’method’]}($this->registry);
} else {
$action = $this->error;

$this->error = NULL;
}
} else {
$action = $this->error;

$this->error = NULL;
}

return $action;
}

/**
*
* Handles the request and creates an action ready for dispatch.
*
* @param object $request The request object to is used to build the action to be executed.
*
* @return array $action Returns an action so the controller can be forwarded.
*
*/
function requestHandler(&$request) {
if ($request->has(’controller’)) {
$class = $request->get(’controller’);

if ($request->has(’action’)) {
$method = $request->get(’action’) . ‘Action’;
} else {
$method = ‘defaultAction’;
}

return $this->forward($class, $method);
} else {
return $this->default;
}
}
}
?>