/**
* Helper function to create an array with all container and element names.
* This function is used to synchronize the configuration fields and containers.
* Elements which not stored in this array has to be removed by the removeUnused()
* function
*
* @param \Shopware\Components\Form\Container $container
* @return array
*/
private function getContainerNames(Form\Container $container)
{
$layout = array('containers' => array(), 'fields' => array());
$layout['containers'][] = $container->getName();
foreach ($container->getElements() as $element) {
if ($element instanceof Form\Container) {
$child = $this->getContainerNames($element);
$layout['containers'] = array_merge($layout['containers'], $child['containers']);
$layout['fields'] = array_merge($layout['fields'], $child['fields']);
} elseif ($element instanceof Form\Field) {
$layout['fields'][] = $element->getName();
}
}
return $layout;
}
