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<?php
/**
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
/**
* @package jDownloads
* @version 4.0
* @copyright (C) 2007 - 2013 - Arno Betz - www.jdownloads.com
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.txt
*
* jDownloads is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
namespace JDownloads\Component\JDownloads\Administrator\Field;
\defined( '_JEXEC' ) or die;
use Joomla\CMS\Factory;
use Joomla\CMS\Form\Field\TextField;
use Joomla\CMS\Form\Field;
use Joomla\CMS\Form\FormHelper;
use Joomla\Utilities\ArrayHelper;
use Joomla\CMS\Form\Field\ListField;
use Joomla\CMS\Language\Text;
use Joomla\Database\DatabaseInterface;
/**
* Form Field class for the Joomla Framework.
*
* @package Joomla.Administrator
* @since 1.6
*/
class JDCategoryParentField extends ListField
{
/**
* The form field type.
*
* @var string
* @since 1.6
*/
protected $type = 'JDCategoryParent';
/**
* Method to get the field options.
*
* @return array The field option objects.
* @since 1.6
*/
protected function getOptions()
{
// Initialise variables.
$options = array();
$db = Factory::getContainer()->get(DatabaseInterface::class);
$query = $db->getQuery(true);
$query->select('a.id AS value, a.title AS text, a.level');
$query->from('#__jdownloads_categories AS a');
$query->join('LEFT', '`#__jdownloads_categories` AS b ON a.lft > b.lft AND a.rgt < b.rgt');
// Prevent parenting to children of this item.
if ($id = $this->form->getValue('id')) {
$query->join('LEFT', '`#__jdownloads_categories` AS p ON p.id = '.(int) $id);
$query->where('NOT(a.lft >= p.lft AND a.rgt <= p.rgt)');
$rowQuery = $db->getQuery(true);
$rowQuery->select('a.id AS value, a.title AS text, a.level, a.parent_id');
$rowQuery->from('#__jdownloads_categories AS a');
$rowQuery->where('a.id = ' . (int) $id);
$db->setQuery($rowQuery);
$row = $db->loadObject();
}
$query->where('a.published IN (0,1)');
$query->group('a.id');
$query->order('a.lft ASC');
// Get the options.
$db->setQuery($query);
// Check for a database error.
try
{
$options = $db->loadObjectList();
}
catch (\RuntimeException $e)
{
Factory::getApplication()->enqueueMessage($e->getMessage(), 'error');
return false;
}
// Pad the option text with spaces using depth level as a multiplier.
for ($i = 0, $n = count($options); $i < $n; $i++)
{
// Translate ROOT
if ($options[$i]->level == 0) {
$options[$i]->text = Text::_('COM_JDOWNLOADS_EDIT_CAT_NO_PARENT_OPTION');
}
$options[$i]->text = str_repeat('- ',$options[$i]->level).$options[$i]->text;
}
// Initialise variables.
$user = Factory::getApplication()->getIdentity();
if (empty($id)) {
// New item, only have to check core.create.
foreach ($options as $i => $option)
{
// Unset the option if the user isn't authorised for it.
if (!$user->authorise('core.create', 'com_jdownloads.category.'.$option->value)) {
unset($options[$i]);
}
}
}
else {
// Existing item is a bit more complex. Need to account for core.edit and core.edit.own.
foreach ($options as $i => $option)
{
// Unset the option if the user isn't authorised for it.
if (!$user->authorise('core.edit', 'com_jdownloads.category.'.$option->value)) {
// As a backup, check core.edit.own
if (!$user->authorise('core.edit.own', 'com_jdownloads.category.'.$option->value)) {
// No core.edit nor core.edit.own - bounce this one
unset($options[$i]);
}
else {
// TODO I've got a funny feeling we need to check core.create here.
// Maybe you can only get the list of categories you are allowed to create in?
// Need to think about that. If so, this is the place to do the check.
}
}
}
}
// Merge any additional options in the XML definition.
$options = array_merge(parent::getOptions(), $options);
return $options;
}
}