+       /**
+        * {@inheritdoc}
+        */
+       public function getRoles(): array {
+               //Get the unique roles list by id
+               return array_unique(array_reduce(
+                       //Cast groups as array
+                       $this->groups->toArray(),
+                       //Reduce to an array of id => group tuples
+                       function ($array, $group) {
+                               $array[$group->getId()] = $group->getRole();
+                               return $array;
+                       },
+                       //Init with empty array
+                       //XXX: on registration, add each group present in rapsys_user.default.group array to user
+                       //XXX: see vendor/rapsys/userbundle/Controller/DefaultController.php +450
+                       []
+               ));
+       }
+
+       /**
+        * {@inheritdoc}
+        */
+       public function getRole(): ?string {
+               //Retrieve roles
+               $roles = $this->getRoles();
+
+               //With roles array empty
+               if ($roles === []) {
+                       //Return null
+                       return null;
+               }
+
+               //Return the role with max id
+               //XXX: should be rewriten if it change in your configuration
+               return $roles[array_reduce(
+                       array_keys($roles),
+                       function($cur, $id) {
+                               if ($cur === null || $id > $cur) {
+                                       return $id;
+                               }
+                               return $cur;
+                       },
+                       null
+               )];