/**
* Validate navigation.
*
* Prevent corrupt navigation data by validating prior to saving.
*
* @param EntityInterface $entity
* @param ErrorStore $errorStore
*/
protected function validateNavigation(EntityInterface $entity, ErrorStore $errorStore)
{
$navigation = $entity->getNavigation();
if (!is_array($navigation)) {
$errorStore->addError('o:navigation', 'Invalid navigation: navigation must be an array');
return;
}
$pagesInNavigation = [];
$manager = $this->getServiceLocator()->get('Omeka\\Site\\NavigationLinkManager');
$validateLinks = function ($linksIn) use(&$validateLinks, $manager, $errorStore, $pagesInNavigation) {
foreach ($linksIn as $key => $data) {
if (!isset($data['type'])) {
$errorStore->addError('o:navigation', 'Invalid navigation: link missing type');
return;
}
if (!isset($data['data'])) {
$errorStore->addError('o:navigation', 'Invalid navigation: link missing data');
return;
}
if (!$manager->get($data['type'])->isValid($data['data'], $errorStore)) {
$errorStore->addError('o:navigation', 'Invalid navigation: invalid link data');
return;
}
if ('page' === $data['type']) {
if (in_array($data['data']['id'], $pagesInNavigation)) {
$errorStore->addError('o:navigation', 'Invalid navigation: page links must be unique');
return;
}
$pagesInNavigation[] = $data['data']['id'];
}
if (isset($data['links'])) {
if (!is_array($data['links'])) {
$errorStore->addError('o:navigation', 'Invalid navigation: links must be an array');
return;
}
$validateLinks($data['links']);
}
}
};
$validateLinks($navigation);
}