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categoryparent.php
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categoryparent.php
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<?php
/**
* @package Joomla.Administrator
* @subpackage com_categories
*
* @copyright Copyright (C) 2005 - 2016 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('JPATH_BASE') or die;
JFormHelper::loadFieldClass('list');
/**
* Form Field class for the Joomla Framework.
*
* @since 1.6
*/
class JFormFieldCategoryParent extends JFormFieldList
{
/**
* The form field type.
*
* @var string
* @since 1.6
*/
protected $type = 'CategoryParent';
/**
* Method to get the field options.
*
* @return array The field option objects.
*
* @since 1.6
*/
protected function getOptions()
{
// Initialise variables.
$options = array();
$name = (string) $this->element['name'];
// Let's get the id for the current item, either category or content item.
$jinput = JFactory::getApplication()->input;
// For categories the old category is the category id 0 for new category.
if ($this->element['parent'])
{
$oldCat = $jinput->get('id', 0);
}
else
// For items the old category is the category they are in when opened or 0 if new.
{
$oldCat = $this->form->getValue($name);
}
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select('a.id AS value, a.title AS text, a.level')
->from('#__categories AS a')
->join('LEFT', $db->quoteName('#__categories') . ' AS b ON a.lft > b.lft AND a.rgt < b.rgt');
// Filter by the type
if ($extension = $this->form->getValue('extension'))
{
$query->where('(a.extension = ' . $db->quote($extension) . ' OR a.parent_id = 0)');
}
if ($this->element['parent'])
{
// Prevent parenting to children of this item.
if ($id = $this->form->getValue('id'))
{
$query->join('LEFT', $db->quoteName('#__categories') . ' AS p ON p.id = ' . (int) $id)
->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')
->from('#__categories AS a')
->where('a.id = ' . (int) $id);
$db->setQuery($rowQuery);
$row = $db->loadObject();
}
}
$query->where('a.published IN (0,1)')
->group('a.id, a.title, a.level, a.lft, a.rgt, a.extension, a.parent_id')
->order('a.lft ASC');
// Get the options.
$db->setQuery($query);
try
{
$options = $db->loadObjectList();
}
catch (RuntimeException $e)
{
JError::raiseWarning(500, $e->getMessage());
}
// Pad the option text with spaces using depth level as a multiplier.
for ($i = 0, $n = count($options); $i < $n; $i++)
{
// Translate ROOT
if ($options[$i]->level == 0)
{
$options[$i]->text = JText::_('JGLOBAL_ROOT_PARENT');
}
// Displays language code if not set to All
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select($db->quoteName('language'))
->where($db->quoteName('id') . '=' . (int) $options[$i]->value)
->from($db->quoteName('#__categories'));
$db->setQuery($query);
$language = $db->loadResult();
$options[$i]->text = str_repeat('- ', $options[$i]->level) . $options[$i]->text;
if ($language !== '*')
{
$options[$i]->text = $options[$i]->text . ' (' . $language . ')';
}
}
// Get the current user object.
$user = JFactory::getUser();
// For new items we want a list of categories you are allowed to create in.
if ($oldCat == 0)
{
foreach ($options as $i => $option)
{
/* To take save or create in a category you need to have create rights for that category
* unless the item is already in that category.
* Unset the option if the user isn't authorised for it. In this field assets are always categories.
*/
if ($user->authorise('core.create', $extension . '.category.' . $option->value) != true)
{
unset($options[$i]);
}
}
}
// If you have an existing category id things are more complex.
else
{
foreach ($options as $i => $option)
{
/* If you are only allowed to edit in this category but not edit.state, you should not get any
* option to change the category parent for a category or the category for a content item,
* but you should be able to save in that category.
*/
if ($user->authorise('core.edit.state', $extension . '.category.' . $oldCat) != true)
{
if ($option->value != $oldCat)
{
echo 'y';
unset($options[$i]);
}
}
// However, if you can edit.state you can also move this to another category for which you have
// create permission and you should also still be able to save in the current category.
elseif (($user->authorise('core.create', $extension . '.category.' . $option->value) != true)
&& $option->value != $oldCat
)
{
echo 'x';
unset($options[$i]);
}
}
}
if (isset($row) && !isset($options[0]))
{
if ($row->parent_id == '1')
{
$parent = new stdClass;
$parent->text = JText::_('JGLOBAL_ROOT_PARENT');
array_unshift($options, $parent);
}
}
// Merge any additional options in the XML definition.
return array_merge(parent::getOptions(), $options);
}
}