Source for file username.php
Documentation is available at username.php
* @package Joomla.Platform
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
* Form Rule class for the Joomla Platform.
* @package Joomla.Platform
* 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.
public function test(SimpleXMLElement $element, $value, $group =
null, JRegistry $input =
null, JForm $form =
null)
// Get the database object and a new query object.
$query =
$db->getQuery(true);
$query->select('COUNT(*)')
->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.
$duplicate = (bool)
$db->loadResult();
Documentation generated on Tue, 19 Nov 2013 15:16:35 +0100 by phpDocumentor 1.4.3