Edit file File name : DragAndDropSource.php Content :<?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\Calendar; interface DragAndDropSource { /** * @return string */ public function getTitle(): string; /** * @return string */ public function getRoute(): string; /** * @return array<string, string> */ public function getRouteParams(): array; /** * @return array<string, string> */ public function getRouteReplacer(): array; /** * @return string */ public function getMethod(): string; /** * @return DragAndDropEntry[] */ public function getEntries(): array; /** * If you want to customize the item rendering, you have to return a path to your include here. * * @return string|null */ public function getBlockInclude(): ?string; } Save