/libraries/joomla/form/rules/username.php
PHP | 62 lines | 22 code | 7 blank | 33 comment | 1 complexity | 69b4c37a0ed7b20f812c3f59c2410c08 MD5 | raw file
Possible License(s): LGPL-2.1
- <?php
- /**
- * @package Joomla.Platform
- * @subpackage Form
- *
- * @copyright Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
- * @license GNU General Public License version 2 or later; see LICENSE
- */
- defined('JPATH_PLATFORM') or die;
- /**
- * Form Rule class for the Joomla Platform.
- *
- * @package Joomla.Platform
- * @subpackage Form
- * @since 11.1
- */
- class JFormRuleUsername extends JFormRule
- {
- /**
- * Method to test the username for uniqueness.
- *
- * @param SimpleXMLElement $element The SimpleXMLElement object representing the <field /> 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 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 JRegistry $input An optional JRegistry object with the entire data set to validate against the entire form.
- * @param JForm $form The form object for which the field is being tested.
- *
- * @return boolean True if the value is valid, false otherwise.
- *
- * @since 11.1
- */
- public function test(SimpleXMLElement $element, $value, $group = null, JRegistry $input = null, JForm $form = null)
- {
- // Get the database object and a new query object.
- $db = JFactory::getDBO();
- $query = $db->getQuery(true);
- // Build the query.
- $query->select('COUNT(*)');
- $query->from('#__users');
- $query->where('username = ' . $db->quote($value));
- // Get the extra field check attribute.
- $userId = ($form instanceof JForm) ? $form->getValue('id') : '';
- $query->where($db->quoteName('id') . ' <> ' . (int) $userId);
- // Set and query the database.
- $db->setQuery($query);
- $duplicate = (bool) $db->loadResult();
- if ($duplicate)
- {
- return false;
- }
- return true;
- }
- }