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src/Silex/Security/Security.php

@@ -38,6 +38,11 @@ class Security
         unset($this->session[USER]);
     }
 
+    public function getCurrentUserId(): ?int
+    {
+        return $this->session[USER] ?? null;
+    }
+
     public function getCurrentUser(): ?User
     {
         if (!empty($this->session[USER]) && $this->user === null) {