/** Add element to the list
* @param \System\Form\Element $el
* @return void;
*/
public function &add_element(\System\Form\Element $el)
{
$el->form($this->form());
$fits = false;
foreach ($this->get_expected_class() as $cname) {
if ($el instanceof $cname) {
$fits = true;
break;
}
}
if ($fits) {
$this->elements[$el->name] = $el;
} else {
throw new \System\Error\Form(sprintf('Form container %s cannot accomodate element of type %s', $this->type, get_class($el)));
}
return $el;
}
