From c290bb08d60eefe4d8d4ffa9eb57cb70e6c5897b Mon Sep 17 00:00:00 2001
From: freek <freek@spatie.be>
Date: Thu, 21 May 2015 18:32:25 +0200
Subject: [PATCH] Only use configured default user id if it is numeric

---
 CHANGELOG.md                                     | 3 +++
 src/Spatie/Activitylog/ActivitylogSupervisor.php | 6 +++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9890a9d..a0d0533 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 All Notable changes to `activitylog` will be documented in this file
 
+### 2.1.1
+- Only use configured default user id if it is numeric
+
 ### 2.1.0
 - Added option to specify a default user id
 
diff --git a/src/Spatie/Activitylog/ActivitylogSupervisor.php b/src/Spatie/Activitylog/ActivitylogSupervisor.php
index 91a1ed4..2fc3e28 100644
--- a/src/Spatie/Activitylog/ActivitylogSupervisor.php
+++ b/src/Spatie/Activitylog/ActivitylogSupervisor.php
@@ -96,6 +96,10 @@ public function normalizeUserId($userId)
             return $this->auth->user()->id;
         }
 
-        return $this->config->get('activitylog.defaultUserId');
+        if (is_numeric($this->config->get('activitylog.defaultUserId'))) {
+            return $this->config->get('activitylog.defaultUserId');
+        };
+
+        return '';
     }
 }