CRUD reentrance protection

sources/Application/Service/EventHelper.php

@@ -0,0 +1,42 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2022 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Service;
+
+use SetupUtils;
+use utils;
+
+class EventHelper
+{
+
+	public static function GetCachedClasses($sModuleName, callable $ListBuilder)
+	{
+		$aClasses = [];
+		$sCacheFileName = '';
+
+		if (!utils::IsDevelopmentEnvironment()) {
+			// Try to read from cache
+			$sCacheFileName = utils::GetCachePath()."EventsClassList/$sModuleName.php";
+			if (is_file($sCacheFileName)) {
+				$aClasses = include $sCacheFileName;
+			}
+		}
+
+		if (empty($aClasses)) {
+			$aClasses = call_user_func($ListBuilder);
+
+			if (!utils::IsDevelopmentEnvironment() && !empty($aClasses)) {
+				// Save to cache
+				$sCacheContent = "<?php\n\nreturn ".var_export($aClasses, true).";";
+				SetupUtils::builddir(dirname($sCacheFileName));
+				file_put_contents($sCacheFileName, $sCacheContent);
+			}
+		}
+
+		return $aClasses;
+	}
+
+}