performance tuning on timesheets (#874)

src/Repository/Loader/LoaderInterface.php

@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Repository\Loader;
+
+interface LoaderInterface
+{
+    /**
+     * Prepares the given database results, so no lazy loading will be performed.
+     *
+     * @param array $results
+     */
+    public function loadResults(array $results): void;
+}