Merge pull request #7 from harsh-biztech/update-authtoken-if-already-existing-in-system

Update token values if already exists

Author: ishan-biztech

src/Controller/CallbackController.php

@@ -55,6 +55,19 @@ public function index()
 
         // Store token details
         $this->loadComponent('XeroOauth2.Storage');
+
+        if ($this->Storage->getAccessToken() === null) {
+            $this->Storage->updateToken(
+                $accessToken->getToken(),
+                $result[0]->getTenantId(),
+                $accessToken->getRefreshToken(),
+                $accessToken->getValues()['id_token'],
+                $accessToken->getExpires()
+            );
+
+            return $this->redirect(Configure::read('XeroOauth2.successUrl'));
+        }
+
         $this->Storage->setToken(
             $accessToken->getToken(),
             $result[0]->getTenantId(),