/**
* {@inheritdoc}
*/
public function convert($value, $definition, $name, array $defaults, Request $request)
{
if ($value) {
try {
return $this->menuLinkManager->createInstance($value);
} catch (PluginException $e) {
// Suppress the error.
}
}
}
/**
* {@inheritdoc}
*/
public function build()
{
$items = [];
$current_id = $this->active->getActiveLink('main')->getPluginId();
while (!empty($current_id)) {
$current_link = $this->linkManager->createInstance($current_id);
/** @var MenuLinkContent $current_link */
$link = new Link($current_link->getTitle(), $current_link->getUrlObject());
$items[] = $link;
$current_id = $current_link->getParent();
}
$breadcrumbs = new Breadcrumb();
$breadcrumbs->setLinks(array_reverse($items));
return $breadcrumbs->toRenderable();
}
/**
* Test automatic reparenting of menu links.
*/
function testMenuLinkReparenting($module = 'menu_test')
{
// Check the initial hierarchy.
$links = $this->createLinkHierarchy($module);
$expected_hierarchy = array('parent' => '', 'child-1' => 'parent', 'child-1-1' => 'child-1', 'child-1-2' => 'child-1', 'child-2' => 'parent');
$this->assertMenuLinkParents($links, $expected_hierarchy);
// Start over, and move child-1 under child-2, and check that all the
// childs of child-1 have been moved too.
$links = $this->createLinkHierarchy($module);
/* @var \Drupal\Core\Menu\MenuLinkInterface $menu_link_plugin */
$this->menuLinkManager->updateDefinition($links['child-1'], array('parent' => $links['child-2']));
// Verify that the entity was updated too.
$menu_link_plugin = $this->menuLinkManager->createInstance($links['child-1']);
$entity = \Drupal::entityManager()->loadEntityByUuid('menu_link_content', $menu_link_plugin->getDerivativeId());
$this->assertEqual($entity->getParentId(), $links['child-2']);
$expected_hierarchy = array('parent' => '', 'child-1' => 'child-2', 'child-1-1' => 'child-1', 'child-1-2' => 'child-1', 'child-2' => 'parent');
$this->assertMenuLinkParents($links, $expected_hierarchy);
// Start over, and delete child-1, and check that the children of child-1
// have been reassigned to the parent.
$links = $this->createLinkHierarchy($module);
$this->menuLinkManager->removeDefinition($links['child-1']);
$expected_hierarchy = array('parent' => FALSE, 'child-1-1' => 'parent', 'child-1-2' => 'parent', 'child-2' => 'parent');
$this->assertMenuLinkParents($links, $expected_hierarchy);
// @todo Figure out what makes sense to test in terms of automatic
// re-parenting. https://www.drupal.org/node/2309531
}
