chg: [internal] Update role changes immediately

app/Model/Role.php

@@ -1,6 +1,9 @@
 <?php
 App::uses('AppModel', 'Model');
 
+/**
+ * @property User $User
+ */
 class Role extends AppModel
 {
     public $validate = array(
@@ -232,6 +235,18 @@ class Role extends AppModel
         return true;
     }
 
+    public function afterSave($created, $options = array())
+    {
+        // After role change, update `date_modified` field for all user with this role to apply this change to already
+        // logged users.
+        if (!$created && !empty($this->data)) {
+            $roleId = $this->data['Role']['id'];
+            $this->User->updateAll(['date_modified' => time()], ['role_id' => $roleId]);
+        }
+
+        parent::afterSave($created, $options);
+    }
+
     public function afterFind($results, $primary = false)
     {
         foreach ($results as $key => $val) {