public static function extract_param(array $parammap, array $spec)
{
$paramname = $spec['name'];
$required = $spec['required'];
$default = null;
# = $spec['default'];
$param = null;
#
$has_default = array_key_exists('default', $spec);
if ($has_default) {
$default = $spec['default'];
}
$has_param = array_key_exists($paramname, $parammap);
if ($has_param) {
$param = $parammap[$paramname];
}
if ($required && !$has_param) {
Dispatch::Exception('Parameters_Required', 'required parameter ' . $paramname . ' was not found');
}
if (!$has_param && $has_default) {
return $default;
}
if (!$has_param && !$has_default) {
return null;
}
return $param;
}
public function action($request)
{
$action = $this->action;
if (!isset($this->action)) {
Dispatch::Exception('Dispatch', 'Cannot get action for ' . get_class($this) . ', no action specified in advance, did you remember to call ->execute( $action ) ?');
}
$action->set_param('rule_class', array('value' => get_class($this)));
$action->set_param('request', array('value' => $request));
$action->set_param('dispatcher', array('value' => &$this->dispatcher));
$action->set_param('rule', array('value' => $this));
return $action;
}
