1 files changed, 21 insertions, 0 deletions
diff --git a/library/Director/Data/ValueFilter/FilterInt.php b/library/Director/Data/ValueFilter/FilterInt.php
new file mode 100644
index 0000000..d51ce8d
--- /dev/null
+++ b/library/Director/Data/ValueFilter/FilterInt.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Icinga\Module\Director\Data\ValueFilter;
+
+use Icinga\Module\Director\Data\ValueFilter;
+
+class FilterInt implements ValueFilter
+{
+    public function filter($value)
+    {
+        if ($value === '' || $value === null) {
+            return null;
+        }
+
+        if (is_string($value) && ! ctype_digit($value)) {
+            return $value;
+        }
+
+        return (int) ((string) $value);
+    }
+}