diff --git a/app/library/App/Controllers/GaController.php b/app/library/App/Controllers/GaController.php
index 18bb929..3b17b01 100644
--- a/app/library/App/Controllers/GaController.php
+++ b/app/library/App/Controllers/GaController.php
@@ -30,6 +30,12 @@ class GaController extends CrudResourceController {
     const VIEW_ID = '119240817';
     const SCOPE = 'https://www.googleapis.com/auth/analytics.readonly';
 
+    /**
+     * Check permission for input project
+     *
+     * @return array
+     * @throws Exception
+     */
     public function checkAction() {
 
         $data = $this->getPostedData();
--
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