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public/typo3conf/ext/ep_theme/Classes/ViewHelpers/DateRangeViewHelper.php

@@ -40,8 +40,8 @@ class DateRangeViewHelper extends AbstractViewHelper
     {
         parent::initializeArguments();
 
-        $this->registerArgument('dateFrom', \DateTime::class, 'Date range start');
-        $this->registerArgument('dateTo', \DateTime::class, 'Date range end');
+        $this->registerArgument('dateFrom', 'mixed', 'Date range start');
+        $this->registerArgument('dateTo', 'mixed', 'Date range end');
         $this->registerArgument('includeLabel', 'Bool', 'Whether to include a label', false, true);
         $this->registerArgument('format', 'String', 'The date format', false, 'd.m.Y');
     }
@@ -58,11 +58,25 @@ class DateRangeViewHelper extends AbstractViewHelper
         RenderingContextInterface $renderingContext
     )
     {
+        $dateFrom = static::ensureDateObject($arguments['dateFrom']);
+        $dateTo = static::ensureDateObject($arguments['dateTo']);
+
         return DateUtility::formatDateRange(
-            $arguments['dateFrom'],
-            $arguments['dateTo'],
+            $dateFrom,
+            $dateTo,
             $arguments['includeLabel'],
             $arguments['format']
         );
     }
+
+    private static function ensureDateObject($argument): \DateTime
+    {
+        if ($argument instanceof \DateTime) {
+            $dateTime = $argument;
+        } else {
+            $dateTime = new \DateTime($argument);
+        }
+
+        return $dateTime;
+    }
 }

public/typo3conf/ext/ep_theme/Classes/ViewHelpers/PriceRangeViewHelper.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace EP\EpTheme\ViewHelpers;
+
+/***************************************************************
+ *
+ *  Copyright notice
+ *
+ *  (c) 2021 Björn Fromme <[email protected]>, dreipunktnull
+ *
+ *  All rights reserved
+ *
+ *  This script is part of the TYPO3 project. The TYPO3 project is
+ *  free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  The GNU General Public License can be found at
+ *  http://www.gnu.org/copyleft/gpl.html.
+ *
+ *  This script is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  This copyright notice MUST APPEAR in all copies of the script!
+ ***************************************************************/
+
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
+
+class PriceRangeViewHelper extends AbstractViewHelper
+{
+    use CompileWithRenderStatic;
+
+    public function initializeArguments()
+    {
+        parent::initializeArguments();
+
+        $this->registerArgument('min', 'mixed', 'Price range start');
+        $this->registerArgument('max', 'mixed', 'Price range end');
+    }
+
+    /**
+     * @param array $arguments
+     * @param \Closure $renderChildrenClosure
+     * @param RenderingContextInterface $renderingContext
+     * @return mixed
+     */
+    public static function renderStatic(
+        array $arguments,
+        \Closure $renderChildrenClosure,
+        RenderingContextInterface $renderingContext
+    ) {
+        if (1 === (int) $arguments['min']) {
+            return sprintf('bis %d €', $arguments['max']);
+        }
+        if (999 === (int) $arguments['max']) {
+            return sprintf('ab %d €', $arguments['min']);
+        }
+
+        return sprintf('%d bis %d €', $arguments['min'], $arguments['max']);
+    }
+}