1 <?php
2 /**
3 * @package Joomla.Platform
4 * @subpackage Form
5 *
6 * @copyright Copyright (C) 2005 - 2017 Open Source Matters, Inc. All rights reserved.
7 * @license GNU General Public License version 2 or later; see LICENSE
8 */
9
10 defined('JPATH_PLATFORM') or die;
11
12 use Joomla\Registry\Registry;
13
14 /**
15 * Form Rule class for the Joomla Platform
16 *
17 * @since 3.7.0
18 */
19 class JFormRuleCalendar extends JFormRule
20 {
21 /**
22 * Method to test the calendar value for a valid parts.
23 *
24 * @param SimpleXMLElement $element The SimpleXMLElement object representing the `<field>` tag for the form field object.
25 * @param mixed $value The form field value to validate.
26 * @param string $group The field name group control value. This acts as an array container for the field.
27 * For example if the field has name="foo" and the group value is set to "bar" then the
28 * full field name would end up being "bar[foo]".
29 * @param Registry $input An optional Registry object with the entire data set to validate against the entire form.
30 * @param JForm $form The form object for which the field is being tested.
31 *
32 * @return boolean True if the value is valid, false otherwise.
33 *
34 * @since 3.7.0
35 */
36 public function test(SimpleXMLElement $element, $value, $group = null, Registry $input = null, JForm $form = null)
37 {
38 // If the field is empty and not required, the field is valid.
39 $required = ((string) $element['required'] == 'true' || (string) $element['required'] == 'required');
40
41 if (!$required && empty($value))
42 {
43 return true;
44 }
45
46 if (strtolower($value) == 'now')
47 {
48 return true;
49 }
50
51 try
52 {
53 return JFactory::getDate($value) instanceof JDate;
54 }
55 catch (Exception $e)
56 {
57 return false;
58 }
59 }
60 }
61