Conditional IoR admin links (IoR roles only)

custom/modules/ior/ior.links.menu.yml

@@ -0,0 +1,13 @@
+system.admin.unblib.ior:
+  title: Images of Research
+  description: 'Manage Images of Research contests'
+  route_name: 'view.ior_contests.page_1'
+  parent: system.admin.unblib
+  weight: 100
+
+system.admin.unblib.ior.contest:
+  title: Contests
+  description: 'Manage contests'
+  route_name: 'view.ior_contests.page_1'
+  parent: system.admin.unblib.ior
+  weight: 0

custom/modules/ior/ior.module

@@ -383,3 +383,23 @@ function ior_update_9004(&$sandbox) {
     ->fields(['bundle' => 'image'])
     ->execute();
 }
+
+/**
+ * Implements hook_menu_links_discovered_alter().
+ */
+function ior_menu_links_discovered_alter(&$links) {
+  $user = Drupal::service(('current_user'));
+  $ior_roles = array_filter($user->getAccount()->getRoles(), function ($role) {
+    return $role === 'ior_manager' || $role === 'ior_reviewer';
+  });
+
+  if (!count($ior_roles)) {
+    $ior_link_ids = array_filter(array_keys($links), function ($link_id) {
+      return preg_match("/^system.admin.unblib.ior/", $link_id);
+    });
+
+    foreach ($ior_link_ids as $link_id) {
+      unset($links[$link_id]);
+    }
+  }
+}