system: value is ptional so only validate if there #1581

2d42d843 · Franco Fichtner · f399f3fa · 2d42d843
Commit 2d42d843 authored May 02, 2017 by Franco Fichtner
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Showing with 3 additions and 2 deletions

system_camanager.php src/www/system_camanager.php +3 -2

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--- a/src/www/system_camanager.php
+++ b/src/www/system_camanager.php
@@ -332,8 +332,9 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
            }
        }

-        if (isset($pconfig['serial']) && ((string)((int)$pconfig['serial']) != $pconfig['serial'] || $pconfig['serial'] < 1)) {
-            $input_errors[] = gettext('The serial number must be a number greater than zero.');
+        if (isset($pconfig['serial']) && $pconfig['serial'] !== '' &&
+            ((string)((int)$pconfig['serial']) != $pconfig['serial'] || $pconfig['serial'] < 1)) {
+            $input_errors[] = gettext('The serial number must be a number greater than zero or left blank.');
        }

        /* save modifications */