acf

plugins/system/nrframework/NRFramework/Rules/nrdate.php

@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * @author          Tassos Marinos <info@tassos.gr>
+ * @link            https://www.tassos.gr
+ * @copyright       Copyright © 2024 Tassos All Rights Reserved
+ * @license         GNU GPLv3 <http://www.gnu.org/licenses/gpl.html> or later
+ */
+
+defined('_JEXEC') or die('Restricted access');
+
+use Joomla\CMS\Form\FormRule;
+
+class JFormRuleNRDate extends FormRule
+{
+	public function test(SimpleXMLElement $element, $value, $group = null, Joomla\Registry\Registry $input = null, Joomla\CMS\Form\Form $form = null)
+	{
+		if (!$value = trim($value))
+		{
+			return true;
+		}
+
+		$format = (string) $element->attributes()->timeformat;
+
+		return $this->validateDate($value, $format);
+	}
+
+	/**
+	 * Validates the given date with the given format
+	 * 
+	 * @param   string  $date
+	 * @param   string  $format
+	 * 
+	 * @return  boolean
+	 */
+	private function validateDate($date, $format = 'Y-m-d')
+	{
+		$d = DateTime::createFromFormat($format, $date);
+		return $d && $d->format($format) === $date;
+	}
+}