thetool/application/WarehouseCategory/WarehouseCategoryController.php

<?php

class WarehouseCategoryController extends TTCrud {
    protected string $headerTitle = 'Kategorien';
    protected string $createText = 'Kategorie erstellen';
    protected string $singleText = 'Kategorie';

    // @formatter:off
    protected array $columns = [
        ['key' => 'name', 'text' => 'Name', 'required' => true,],
        ['key' => 'description', 'text' => 'Beschreibung', 'required' => true],
        ['key' => 'articleNumberPrefix', 'text' => 'Artikelnummerprefix', 'required' => true],
        ['key' => 'create', 'text' => 'Erstellt am', 'required' => false, 'modal' => false, 'table' => ['filter' => false, 'sortable' => false, 'class' => 'text-center']],
        ['key' => 'create_by', 'text' => 'Erstellt von', 'required' => false, 'modal' => false, 'table' => ['filter' => false, 'sortable' => false, 'class' => 'text-center']],
        ['key' => 'actions', 'text' => 'Aktionen', 'required' => false, 'modal' => false, 'table' => ['filter' => false, 'sortable' => false, 'class' => 'text-center', 'priority' => 10]],
    ];
    // @formatter:on

    protected array $additionalActions = [['key' => 'openHistory', 'title' => 'Historie', 'class' => 'fas fa-history text-primary']];

    protected function beforeUpdate($postData): bool {
        (new WarehouseHistoryController)->create($postData, $this->mod);
        return true;
    }

    protected function getHistoryAction() {
        self::returnJson((new WarehouseHistoryController)->getHistory($this->request->id, $this->mod, $this->columns));
    }

    protected function beforeDelete($postData): bool {
        if (count(WarehouseArticleModel::getAll(['category_id' => $postData['id']])) === 0) return true;

        http_response_code(500);
        self::returnJson(['status' => 'error', 'message' => 'Die Kategorie kann nicht gelöscht werden, da sie in mindestens einem Artikel verwendet wird.']);
        return false;
    }
}