/libraries/joomla/form/rules/username.php
PHP | 69 lines | 26 code | 8 blank | 35 comment | 2 complexity | 108defcd426d1b7265fe56028927643c MD5 | raw file
Possible License(s): LGPL-3.0, LGPL-2.0, JSON, GPL-2.0, BSD-3-Clause, LGPL-2.1, MIT
- <?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 object &$form The form object for which the field is being tested.
- *
- * @return boolean True if the value is valid, false otherwise.
- *
- * @since 11.1
- * @throws JException on invalid rule.
- */
- public function test(&$element, $value, $group = null, &$input = null, &$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) $db->loadResult();
- // Check for a database error.
- if ($db->getErrorNum())
- {
- JError::raiseWarning(500, $db->getErrorMsg());
- }
- if ($duplicate)
- {
- return false;
- }
- return true;
- }
- }