1 files changed, 37 insertions, 0 deletions
diff --git a/library/Director/PropertyModifier/PropertyModifierArrayUnique.php b/library/Director/PropertyModifier/PropertyModifierArrayUnique.php
new file mode 100644
index 0000000..e3446f9
--- /dev/null
+++ b/library/Director/PropertyModifier/PropertyModifierArrayUnique.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Icinga\Module\Director\PropertyModifier;
+
+use Icinga\Exception\InvalidPropertyException;
+use Icinga\Module\Director\Hook\PropertyModifierHook;
+use function array_unique;
+use function array_values;
+use function is_array;
+
+class PropertyModifierArrayUnique extends PropertyModifierHook
+{
+    public function getName()
+    {
+        return 'Unique Array Values';
+    }
+
+    public function hasArraySupport()
+    {
+        return true;
+    }
+
+    public function transform($value)
+    {
+        if (empty($value)) {
+            return $value;
+        }
+
+        if (! is_array($value)) {
+            throw new InvalidPropertyException(
+                'The ArrayUnique property modifier can be applied to arrays only'
+            );
+        }
+
+        return array_values(array_unique($value));
+    }
+}