PropertyModifierArrayToRow: new modifier

fixes #2192

library/Director/PropertyModifier/PropertyModifierArrayToRow.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Icinga\Module\Director\PropertyModifier;
+
+use Icinga\Module\Director\Hook\PropertyModifierHook;
+
+class PropertyModifierArrayToRow extends PropertyModifierHook
+{
+    public function getName()
+    {
+        return 'Clone the row for every entry of an Array';
+    }
+
+    public function hasArraySupport()
+    {
+        return true;
+    }
+
+    public function expandsRows()
+    {
+        return true;
+    }
+
+    public function transform($value)
+    {
+        if (empty($value)) {
+            $this->rejectRow();
+            return null;
+        }
+
+        return $value;
+    }
+}

register-hooks.php

@@ -18,6 +18,7 @@ use Icinga\Module\Director\Job\ImportJob;
 use Icinga\Module\Director\Job\SyncJob;
 use Icinga\Module\Director\PropertyModifier\PropertyModifierArrayElementByPosition;
 use Icinga\Module\Director\PropertyModifier\PropertyModifierArrayFilter;
+use Icinga\Module\Director\PropertyModifier\PropertyModifierArrayToRow;
 use Icinga\Module\Director\PropertyModifier\PropertyModifierBitmask;
 use Icinga\Module\Director\PropertyModifier\PropertyModifierCombine;
 use Icinga\Module\Director\PropertyModifier\PropertyModifierDnsRecords;
@@ -79,6 +80,7 @@ $directorHooks = [
     'director/PropertyModifier' => [
         PropertyModifierArrayElementByPosition::class,
         PropertyModifierArrayFilter::class,
+        PropertyModifierArrayToRow::class,
         PropertyModifierBitmask::class,
         PropertyModifierCombine::class,
         PropertyModifierDnsRecords::class,