@copyright Copyright (C) 2020 Vast Development Method. All rights reserved. @license GNU/GPL Version 2 or later - http://www.gnu.org/licenses/gpl-2.0.html Portal for mobile health clinics /-----------------------------------------------------------------------------------------------------------------------------*/ // No direct access to this file defined('JPATH_PLATFORM') or die; use Joomla\CMS\Factory; use Joomla\CMS\Language\Text; use Joomla\CMS\Form\Form; use Joomla\CMS\Form\FormRule; use Joomla\Registry\Registry; use Joomla\CMS\HTML\HTMLHelper as Html; /** * Form Rule (Guid) class for the Joomla Platform. */ class JFormRuleGuid extends FormRule { /** * Method to test for a Globally Unique Identifier. * * @param \SimpleXMLElement $element The SimpleXMLElement object representing the `` tag for the form field object. * @param mixed $value The form field value to validate. * @param string $group The field name group control value. This acts as an array container for the field. * For example if the field has name="foo" and the group value is set to "bar" then the * full field name would end up being "bar[foo]". * @param Registry $input An optional Registry object with the entire data set to validate against the entire form. * @param Form $form The form object for which the field is being tested. * * @return boolean True if the value is valid, false otherwise. * */ public function test(\SimpleXMLElement $element, $value, $group = null, Registry $input = null, Form $form = null) { $value = trim($value); // If the field is empty and not required, the field is valid. $required = ((string) $element['required'] == 'true' || (string) $element['required'] == 'required'); if (!$required && empty($value)) { return true; } // thanks to Lewie https://stackoverflow.com/a/1515456/1429677 return preg_match("/^(\{)?[a-f\d]{8}(-[a-f\d]{4}){4}[a-f\d]{8}(?(1)\})$/i", $value); } }