Members-Manager/admin/models/rules/uniquefield.php

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2018-07-25 03:00:13 +00:00
<?php
/**
* @package Joomla.Members.Manager
*
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* @created 6th July, 2018
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* @author Llewellyn van der Merwe <https://www.joomlacomponentbuilder.com/>
* @github Joomla Members Manager <https://github.com/vdm-io/Joomla-Members-Manager>
* @copyright Copyright (C) 2015. All Rights Reserved
* @license GNU/GPL Version 2 or later - http://www.gnu.org/licenses/gpl-2.0.html
*/
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// No direct access to this file
defined('JPATH_PLATFORM') or die;
use Joomla\CMS\Form\Form;
use Joomla\CMS\Form\FormRule;
use Joomla\Registry\Registry;
/**
* Form Rule (Uniquefield) class for the Joomla Platform.
*/
class JFormRuleUniquefield extends FormRule
{
/**
* Method to test the field value 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 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.
*
* @since 11.1
*/
public function test(\SimpleXMLElement $element, $value, $group = null, Registry $input = null, Form $form = null)
{
// Get the database object and a new query object.
$db = \JFactory::getDbo();
$query = $db->getQuery(true);
// Get the extra field check attribute.
$id = ($input instanceof Registry) ? $input->get('id', null) : null;
// get the component & table name
$table = ($form instanceof Form) ? $form->getName() : '';
// get the column name
$name = (array) $element->attributes()->{'name'};
$column = (string) trim($name[0]);
// check that we have a value
if (strlen($table) > 3 && strpos($table, 'membersmanager.') !== false)
{
// now get the table name
$tableArray = explode('.', $table);
// do we have two values
if (count( (array) $tableArray) == 2)
{
// Build the query.
$query->select('COUNT(*)')
->from('#__membersmanager_' . (string) $tableArray[1])
->where($db->quoteName($column) . ' = ' . $db->quote($value));
// remove this item from the list
if ($id > 0)
{
$query->where($db->quoteName('id') . ' <> ' . (int) $id);
}
// Set and query the database.
$db->setQuery($query);
$duplicate = (bool) $db->loadResult();
if ($duplicate)
{
return false;
}
}
}
return true;
}
}