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<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_categories
 *
 * @copyright   (C) 2008 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Categories\Administrator\Model;

\defined('_JEXEC') or die;

use Joomla\CMS\Access\Rules;
use Joomla\CMS\Association\AssociationServiceInterface;
use Joomla\CMS\Categories\CategoryServiceInterface;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Filesystem\Path;
use Joomla\CMS\Form\Form;
use Joomla\CMS\Helper\TagsHelper;
use Joomla\CMS\Language\Associations;
use Joomla\CMS\Language\LanguageHelper;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\Factory\MVCFactoryInterface;
use Joomla\CMS\MVC\Model\AdminModel;
use Joomla\CMS\Plugin\PluginHelper;
use Joomla\CMS\UCM\UCMType;
use Joomla\CMS\Versioning\VersionableModelTrait;
use Joomla\Component\Categories\Administrator\Helper\CategoriesHelper;
use Joomla\Database\ParameterType;
use Joomla\Registry\Registry;
use Joomla\String\StringHelper;
use Joomla\Utilities\ArrayHelper;

/**
 * Categories Component Category Model
 *
 * @since  1.6
 */
class CategoryModel extends AdminModel
{
	use VersionableModelTrait;

/**
	 * The prefix to use with controller messages.
	 *
	 * @var    string
	 * @since  1.6
	 */
	protected $text_prefix = 'COM_CATEGORIES';

/**
	 * The type alias for this content type. Used for content version history.
	 *
	 * @var      string
	 * @since    3.2
	 */
	public $typeAlias = null;

/**
	 * The context used for the associations table
	 *
	 * @var      string
	 * @since    3.4.4
	 */
	protected $associationsContext = 'com_categories.item';

/**
	 * Override parent constructor.
	 *
	 * @param   array                     $config   An optional associative array of configuration settings.
	 * @param   MVCFactoryInterface|null  $factory  The factory.
	 *
	 * @see     \Joomla\CMS\MVC\Model\BaseDatabaseModel
	 * @since   3.2
	 */
	public function __construct($config = array(), MVCFactoryInterface $factory = null)
	{
		$extension = Factory::getApplication()->input->get('extension', 'com_content');
		$this->typeAlias = $extension . '.category';

// Add a new batch command
		$this->batch_commands['flip_ordering'] = 'batchFlipordering';

parent::__construct($config, $factory);
	}

/**
	 * Method to test whether a record can be deleted.
	 *
	 * @param   object  $record  A record object.
	 *
	 * @return  boolean  True if allowed to delete the record. Defaults to the permission set in the component.
	 *
	 * @since   1.6
	 */
	protected function canDelete($record)
	{
		if (empty($record->id) || $record->published != -2)
		{
			return false;
		}

return Factory::getUser()->authorise('core.delete', $record->extension . '.category.' . (int) $record->id);
	}

/**
	 * Method to test whether a record can have its state changed.
	 *
	 * @param   object  $record  A record object.
	 *
	 * @return  boolean  True if allowed to change the state of the record. Defaults to the permission set in the component.
	 *
	 * @since   1.6
	 */
	protected function canEditState($record)
	{
		$user = Factory::getUser();

// Check for existing category.
		if (!empty($record->id))
		{
			return $user->authorise('core.edit.state', $record->extension . '.category.' . (int) $record->id);
		}

// New category, so check against the parent.
		if (!empty($record->parent_id))
		{
			return $user->authorise('core.edit.state', $record->extension . '.category.' . (int) $record->parent_id);
		}

// Default to component settings if neither category nor parent known.
		return $user->authorise('core.edit.state', $record->extension);
	}

/**
	 * Method to get a table object, load it if necessary.
	 *
	 * @param   string  $type    The table name. Optional.
	 * @param   string  $prefix  The class prefix. Optional.
	 * @param   array   $config  Configuration array for model. Optional.
	 *
	 * @return  \Joomla\CMS\Table\Table  A JTable object
	 *
	 * @since   1.6
	 */
	public function getTable($type = 'Category', $prefix = 'Administrator', $config = array())
	{
		return parent::getTable($type, $prefix, $config);
	}

/**
	 * Auto-populate the model state.
	 *
	 * Note. Calling getState in this method will result in recursion.
	 *
	 * @return  void
	 *
	 * @since   1.6
	 */
	protected function populateState()
	{
		$app = Factory::getApplication();

$parentId = $app->input->getInt('parent_id');
		$this->setState('category.parent_id', $parentId);

// Load the User state.
		$pk = $app->input->getInt('id');
		$this->setState($this->getName() . '.id', $pk);

$extension = $app->input->get('extension', 'com_content');
		$this->setState('category.extension', $extension);
		$parts = explode('.', $extension);

// Extract the component name
		$this->setState('category.component', $parts[0]);

// Extract the optional section name
		$this->setState('category.section', (count($parts) > 1) ? $parts[1] : null);

// Load the parameters.
		$params = ComponentHelper::getParams('com_categories');
		$this->setState('params', $params);
	}

/**
	 * Method to get a category.
	 *
	 * @param   integer  $pk  An optional id of the object to get, otherwise the id from the model state is used.
	 *
	 * @return  mixed    Category data object on success, false on failure.
	 *
	 * @since   1.6
	 */
	public function getItem($pk = null)
	{
		if ($result = parent::getItem($pk))
		{
			// Prime required properties.
			if (empty($result->id))
			{
				$result->parent_id = $this->getState('category.parent_id');
				$result->extension = $this->getState('category.extension');
			}

// Convert the metadata field to an array.
			$registry = new Registry($result->metadata);
			$result->metadata = $registry->toArray();

if (!empty($result->id))
			{
				$result->tags = new TagsHelper;
				$result->tags->getTagIds($result->id, $result->extension . '.category');
			}
		}

$assoc = $this->getAssoc();

if ($assoc)
		{
			if ($result->id != null)
			{
				$result->associations = ArrayHelper::toInteger(CategoriesHelper::getAssociations($result->id, $result->extension));
			}
			else
			{
				$result->associations = array();
			}
		}

return $result;
	}

/**
	 * Method to get the row form.
	 *
	 * @param   array    $data      Data for the form.
	 * @param   boolean  $loadData  True if the form is to load its own data (default case), false if not.
	 *
	 * @return  \JForm|boolean  A JForm object on success, false on failure
	 *
	 * @since   1.6
	 */
	public function getForm($data = array(), $loadData = true)
	{
		$extension = $this->getState('category.extension');
		$jinput = Factory::getApplication()->input;

// A workaround to get the extension into the model for save requests.
		if (empty($extension) && isset($data['extension']))
		{
			$extension = $data['extension'];
			$parts = explode('.', $extension);

$this->setState('category.extension', $extension);
			$this->setState('category.component', $parts[0]);
			$this->setState('category.section', @$parts[1]);
		}

// Get the form.
		$form = $this->loadForm('com_categories.category' . $extension, 'category', array('control' => 'jform', 'load_data' => $loadData));

if (empty($form))
		{
			return false;
		}

// Modify the form based on Edit State access controls.
		if (empty($data['extension']))
		{
			$data['extension'] = $extension;
		}

$categoryId = $jinput->get('id');
		$parts      = explode('.', $extension);
		$assetKey   = $categoryId ? $extension . '.category.' . $categoryId : $parts[0];

if (!Factory::getUser()->authorise('core.edit.state', $assetKey))
		{
			// Disable fields for display.
			$form->setFieldAttribute('ordering', 'disabled', 'true');
			$form->setFieldAttribute('published', 'disabled', 'true');

// Disable fields while saving.
			// The controller has already verified this is a record you can edit.
			$form->setFieldAttribute('ordering', 'filter', 'unset');
			$form->setFieldAttribute('published', 'filter', 'unset');
		}

// Don't allow to change the created_user_id user if not allowed to access com_users.
		if (!Factory::getUser()->authorise('core.manage', 'com_users'))
		{
			$form->setFieldAttribute('created_user_id', 'filter', 'unset');
		}

return $form;
	}

/**
	 * A protected method to get the where clause for the reorder
	 * This ensures that the row will be moved relative to a row with the same extension
	 *
	 * @param   \JTableCategory  $table  Current table instance
	 *
	 * @return  array  An array of conditions to add to ordering queries.
	 *
	 * @since   1.6
	 */
	protected function getReorderConditions($table)
	{
		return [
			$this->_db->quoteName('extension') . ' = ' . $this->_db->quote($table->extension),
		];
	}

/**
	 * Method to get the data that should be injected in the form.
	 *
	 * @return  mixed  The data for the form.
	 *
	 * @since   1.6
	 */
	protected function loadFormData()
	{
		// Check the session for previously entered form data.
		$app = Factory::getApplication();
		$data = $app->getUserState('com_categories.edit.' . $this->getName() . '.data', array());

if (empty($data))
		{
			$data = $this->getItem();

// Pre-select some filters (Status, Language, Access) in edit form if those have been selected in Category Manager
			if (!$data->id)
			{
				// Check for which extension the Category Manager is used and get selected fields
				$extension = substr($app->getUserState('com_categories.categories.filter.extension'), 4);
				$filters = (array) $app->getUserState('com_categories.categories.' . $extension . '.filter');

$data->set(
					'published',
					$app->input->getInt(
						'published',
						((isset($filters['published']) && $filters['published'] !== '') ? $filters['published'] : null)
					)
				);
				$data->set('language', $app->input->getString('language', (!empty($filters['language']) ? $filters['language'] : null)));
				$data->set(
					'access',
					$app->input->getInt('access', (!empty($filters['access']) ? $filters['access'] : $app->get('access')))
				);
			}
		}

$this->preprocessData('com_categories.category', $data);

return $data;
	}

/**
	 * Method to validate the form data.
	 *
	 * @param   Form    $form   The form to validate against.
	 * @param   array   $data   The data to validate.
	 * @param   string  $group  The name of the field group to validate.
	 *
	 * @return  array|boolean  Array of filtered data if valid, false otherwise.
	 *
	 * @see     JFormRule
	 * @see     JFilterInput
	 * @since   3.9.23
	 */
	public function validate($form, $data, $group = null)
	{
		if (!Factory::getUser()->authorise('core.admin', $data['extension']))
		{
			if (isset($data['rules']))
			{
				unset($data['rules']);
			}
		}

return parent::validate($form, $data, $group);
	}

/**
	 * Method to preprocess the form.
	 *
	 * @param   \JForm  $form   A JForm object.
	 * @param   mixed   $data   The data expected for the form.
	 * @param   string  $group  The name of the plugin group to import.
	 *
	 * @return  mixed
	 *
	 * @see     \Joomla\CMS\Form\FormField
	 * @since   1.6
	 * @throws  \Exception if there is an error in the form event.
	 */
	protected function preprocessForm(Form $form, $data, $group = 'content')
	{
		$lang = Factory::getLanguage();
		$component = $this->getState('category.component');
		$section = $this->getState('category.section');
		$extension = Factory::getApplication()->input->get('extension', null);

// Get the component form if it exists
		$name = 'category' . ($section ? ('.' . $section) : '');

// Looking first in the component forms folder
		$path = Path::clean(JPATH_ADMINISTRATOR . "/components/$component/forms/$name.xml");

// Looking in the component models/forms folder (J! 3)
		if (!file_exists($path))
		{
			$path = Path::clean(JPATH_ADMINISTRATOR . "/components/$component/models/forms/$name.xml");
		}

// Old way: looking in the component folder
		if (!file_exists($path))
		{
			$path = Path::clean(JPATH_ADMINISTRATOR . "/components/$component/$name.xml");
		}

if (file_exists($path))
		{
			$lang->load($component, JPATH_BASE);
			$lang->load($component, JPATH_BASE . '/components/' . $component);

if (!$form->loadFile($path, false))
			{
				throw new \Exception(Text::_('JERROR_LOADFILE_FAILED'));
			}
		}

$componentInterface = Factory::getApplication()->bootComponent($component);

if ($componentInterface instanceof CategoryServiceInterface)
		{
			$componentInterface->prepareForm($form, $data);
		}
		else
		{
			// Try to find the component helper.
			$eName = str_replace('com_', '', $component);
			$path = Path::clean(JPATH_ADMINISTRATOR . "/components/$component/helpers/category.php");

if (file_exists($path))
			{
				$cName = ucfirst($eName) . ucfirst($section) . 'HelperCategory';

\JLoader::register($cName, $path);

if (class_exists($cName) && is_callable(array($cName, 'onPrepareForm')))
				{
					$lang->load($component, JPATH_BASE, null, false, false)
						|| $lang->load($component, JPATH_BASE . '/components/' . $component, null, false, false)
						|| $lang->load($component, JPATH_BASE, $lang->getDefault(), false, false)
						|| $lang->load($component, JPATH_BASE . '/components/' . $component, $lang->getDefault(), false, false);
					call_user_func_array(array($cName, 'onPrepareForm'), array(&$form));

// Check for an error.
					if ($form instanceof \Exception)
					{
						$this->setError($form->getMessage());

return false;
					}
				}
			}
		}

// Set the access control rules field component value.
		$form->setFieldAttribute('rules', 'component', $component);
		$form->setFieldAttribute('rules', 'section', $name);

// Association category items
		if ($this->getAssoc())
		{
			$languages = LanguageHelper::getContentLanguages(false, false, null, 'ordering', 'asc');

if (count($languages) > 1)
			{
				$addform = new \SimpleXMLElement('<form />');
				$fields = $addform->addChild('fields');
				$fields->addAttribute('name', 'associations');
				$fieldset = $fields->addChild('fieldset');
				$fieldset->addAttribute('name', 'item_associations');

foreach ($languages as $language)
				{
					$field = $fieldset->addChild('field');
					$field->addAttribute('name', $language->lang_code);
					$field->addAttribute('type', 'modal_category');
					$field->addAttribute('language', $language->lang_code);
					$field->addAttribute('label', $language->title);
					$field->addAttribute('translate_label', 'false');
					$field->addAttribute('extension', $extension);
					$field->addAttribute('select', 'true');
					$field->addAttribute('new', 'true');
					$field->addAttribute('edit', 'true');
					$field->addAttribute('clear', 'true');
					$field->addAttribute('propagate', 'true');
				}

$form->load($addform, false);
			}
		}

// Trigger the default form events.
		parent::preprocessForm($form, $data, $group);
	}

/**
	 * Method to save the form data.
	 *
	 * @param   array  $data  The form data.
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   1.6
	 */
	public function save($data)
	{
		$table      = $this->getTable();
		$input      = Factory::getApplication()->input;
		$pk         = (!empty($data['id'])) ? $data['id'] : (int) $this->getState($this->getName() . '.id');
		$isNew      = true;
		$context    = $this->option . '.' . $this->name;

if (!empty($data['tags']) && $data['tags'][0] != '')
		{
			$table->newTags = $data['tags'];
		}

// Include the plugins for the save events.
		PluginHelper::importPlugin($this->events_map['save']);

// Load the row if saving an existing category.
		if ($pk > 0)
		{
			$table->load($pk);
			$isNew = false;
		}

// Set the new parent id if parent id not matched OR while New/Save as Copy .
		if ($table->parent_id != $data['parent_id'] || $data['id'] == 0)
		{
			$table->setLocation($data['parent_id'], 'last-child');
		}

// Alter the title for save as copy
		if ($input->get('task') == 'save2copy')
		{
			$origTable = clone $this->getTable();
			$origTable->load($input->getInt('id'));

if ($data['title'] == $origTable->title)
			{
				list($title, $alias) = $this->generateNewTitle($data['parent_id'], $data['alias'], $data['title']);
				$data['title'] = $title;
				$data['alias'] = $alias;
			}
			else
			{
				if ($data['alias'] == $origTable->alias)
				{
					$data['alias'] = '';
				}
			}

$data['published'] = 0;
		}

// Bind the data.
		if (!$table->bind($data))
		{
			$this->setError($table->getError());

return false;
		}

// Bind the rules.
		if (isset($data['rules']))
		{
			$rules = new Rules($data['rules']);
			$table->setRules($rules);
		}

// Check the data.
		if (!$table->check())
		{
			$this->setError($table->getError());

return false;
		}

// Trigger the before save event.
		$result = Factory::getApplication()->triggerEvent($this->event_before_save, array($context, &$table, $isNew, $data));

if (in_array(false, $result, true))
		{
			$this->setError($table->getError());

return false;
		}

// Store the data.
		if (!$table->store())
		{
			$this->setError($table->getError());

return false;
		}

$assoc = $this->getAssoc();

if ($assoc)
		{
			// Adding self to the association
			$associations = $data['associations'] ?? array();

// Unset any invalid associations
			$associations = ArrayHelper::toInteger($associations);

foreach ($associations as $tag => $id)
			{
				if (!$id)
				{
					unset($associations[$tag]);
				}
			}

// Detecting all item menus
			$allLanguage = $table->language == '*';

if ($allLanguage && !empty($associations))
			{
				Factory::getApplication()->enqueueMessage(Text::_('COM_CATEGORIES_ERROR_ALL_LANGUAGE_ASSOCIATED'), 'notice');
			}

// Get associationskey for edited item
			$db    = $this->getDbo();
			$id    = (int) $table->id;
			$query = $db->getQuery(true)
				->select($db->quoteName('key'))
				->from($db->quoteName('#__associations'))
				->where($db->quoteName('context') . ' = :associationscontext')
				->where($db->quoteName('id') . ' = :id')
				->bind(':associationscontext', $this->associationsContext)
				->bind(':id', $id, ParameterType::INTEGER);
			$db->setQuery($query);
			$oldKey = $db->loadResult();

if ($associations || $oldKey !== null)
			{
				$where = [];

// Deleting old associations for the associated items
				$query = $db->getQuery(true)
					->delete($db->quoteName('#__associations'))
					->where($db->quoteName('context') . ' = :associationscontext')
					->bind(':associationscontext', $this->associationsContext);

if ($associations)
				{
					$where[] = $db->quoteName('id') . ' IN (' . implode(',', $query->bindArray(array_values($associations))) . ')';
				}

if ($oldKey !== null)
				{
					$where[] = $db->quoteName('key') . ' = :oldKey';
					$query->bind(':oldKey', $oldKey);
				}

$query->extendWhere('AND', $where, 'OR');
			}

$db->setQuery($query);

try
			{
				$db->execute();
			}
			catch (\RuntimeException $e)
			{
				$this->setError($e->getMessage());

return false;
			}

// Adding self to the association
			if (!$allLanguage)
			{
				$associations[$table->language] = (int) $table->id;
			}

if (count($associations) > 1)
			{
				// Adding new association for these items
				$key = md5(json_encode($associations));
				$query->clear()
					->insert($db->quoteName('#__associations'))
					->columns(
						[
							$db->quoteName('id'),
							$db->quoteName('context'),
							$db->quoteName('key'),
						]
					);

foreach ($associations as $id)
				{
					$id = (int) $id;

$query->values(
						implode(
							',',
							$query->bindArray(
								[$id, $this->associationsContext, $key],
								[ParameterType::INTEGER, ParameterType::STRING, ParameterType::STRING]
							)
						)
					);
				}

$db->setQuery($query);

try
				{
					$db->execute();
				}
				catch (\RuntimeException $e)
				{
					$this->setError($e->getMessage());

return false;
				}
			}
		}

// Trigger the after save event.
		Factory::getApplication()->triggerEvent($this->event_after_save, array($context, &$table, $isNew, $data));

// Rebuild the path for the category:
		if (!$table->rebuildPath($table->id))
		{
			$this->setError($table->getError());

return false;
		}

// Rebuild the paths of the category's children:
		if (!$table->rebuild($table->id, $table->lft, $table->level, $table->path))
		{
			$this->setError($table->getError());

return false;
		}

$this->setState($this->getName() . '.id', $table->id);

if (Factory::getApplication()->input->get('task') == 'editAssociations')
		{
			return $this->redirectToAssociations($data);
		}

// Clear the cache
		$this->cleanCache();

return true;
	}

/**
	 * Method to change the published state of one or more records.
	 *
	 * @param   array    $pks    A list of the primary keys to change.
	 * @param   integer  $value  The value of the published state.
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   2.5
	 */
	public function publish(&$pks, $value = 1)
	{
		if (parent::publish($pks, $value))
		{
			$extension = Factory::getApplication()->input->get('extension');

// Include the content plugins for the change of category state event.
			PluginHelper::importPlugin('content');

// Trigger the onCategoryChangeState event.
			Factory::getApplication()->triggerEvent('onCategoryChangeState', array($extension, $pks, $value));

return true;
		}
	}

/**
	 * Method rebuild the entire nested set tree.
	 *
	 * @return  boolean  False on failure or error, true otherwise.
	 *
	 * @since   1.6
	 */
	public function rebuild()
	{
		// Get an instance of the table object.
		$table = $this->getTable();

if (!$table->rebuild())
		{
			$this->setError($table->getError());

return false;
		}

// Clear the cache
		$this->cleanCache();

return true;
	}

/**
	 * Method to save the reordered nested set tree.
	 * First we save the new order values in the lft values of the changed ids.
	 * Then we invoke the table rebuild to implement the new ordering.
	 *
	 * @param   array    $idArray   An array of primary key ids.
	 * @param   integer  $lftArray  The lft value
	 *
	 * @return  boolean  False on failure or error, True otherwise
	 *
	 * @since   1.6
	 */
	public function saveorder($idArray = null, $lftArray = null)
	{
		// Get an instance of the table object.
		$table = $this->getTable();

if (!$table->saveorder($idArray, $lftArray))
		{
			$this->setError($table->getError());

return false;
		}

// Clear the cache
		$this->cleanCache();

return true;
	}

/**
	 * Batch flip category ordering.
	 *
	 * @param   integer  $value     The new category.
	 * @param   array    $pks       An array of row IDs.
	 * @param   array    $contexts  An array of item contexts.
	 *
	 * @return  mixed    An array of new IDs on success, boolean false on failure.
	 *
	 * @since   3.6.3
	 */
	protected function batchFlipordering($value, $pks, $contexts)
	{
		$successful = array();

$db = $this->getDbo();
		$query = $db->getQuery(true);

/**
		 * For each category get the max ordering value
		 * Re-order with max - ordering
		 */
		foreach ($pks as $id)
		{
			$query->select('MAX(' . $db->quoteName('ordering') . ')')
				->from($db->quoteName('#__content'))
				->where($db->quoteName('catid') . ' = :catid')
				->bind(':catid', $id, ParameterType::INTEGER);

$db->setQuery($query);

$max = (int) $db->loadResult();
			$max++;

$query->clear();

$query->update($db->quoteName('#__content'))
				->set($db->quoteName('ordering') . ' = :max - ' . $db->quoteName('ordering'))
				->where($db->quoteName('catid') . ' = :catid')
				->bind(':max', $max, ParameterType::INTEGER)
				->bind(':catid', $id, ParameterType::INTEGER);

$db->setQuery($query);

if ($db->execute())
			{
				$successful[] = $id;
			}
		}

return empty($successful) ? false : $successful;
	}

/**
	 * Batch copy categories to a new category.
	 *
	 * @param   integer  $value     The new category.
	 * @param   array    $pks       An array of row IDs.
	 * @param   array    $contexts  An array of item contexts.
	 *
	 * @return  mixed    An array of new IDs on success, boolean false on failure.
	 *
	 * @since   1.6
	 */
	protected function batchCopy($value, $pks, $contexts)
	{
		$type = new UCMType;
		$this->type = $type->getTypeByAlias($this->typeAlias);

// $value comes as {parent_id}.{extension}
		$parts = explode('.', $value);
		$parentId = (int) ArrayHelper::getValue($parts, 0, 1);

$db = $this->getDbo();
		$extension = Factory::getApplication()->input->get('extension', '', 'word');
		$newIds = array();

// Check that the parent exists
		if ($parentId)
		{
			if (!$this->table->load($parentId))
			{
				if ($error = $this->table->getError())
				{
					// Fatal error
					$this->setError($error);

return false;
				}
				else
				{
					// Non-fatal error
					$this->setError(Text::_('JGLOBAL_BATCH_MOVE_PARENT_NOT_FOUND'));
					$parentId = 0;
				}
			}

// Check that user has create permission for parent category
			if ($parentId == $this->table->getRootId())
			{
				$canCreate = $this->user->authorise('core.create', $extension);
			}
			else
			{
				$canCreate = $this->user->authorise('core.create', $extension . '.category.' . $parentId);
			}

if (!$canCreate)
			{
				// Error since user cannot create in parent category
				$this->setError(Text::_('COM_CATEGORIES_BATCH_CANNOT_CREATE'));

return false;
			}
		}

// If the parent is 0, set it to the ID of the root item in the tree
		if (empty($parentId))
		{
			if (!$parentId = $this->table->getRootId())
			{
				$this->setError($this->table->getError());

return false;
			}
			// Make sure we can create in root
			elseif (!$this->user->authorise('core.create', $extension))
			{
				$this->setError(Text::_('COM_CATEGORIES_BATCH_CANNOT_CREATE'));

return false;
			}
		}

// We need to log the parent ID
		$parents = array();

// Calculate the emergency stop count as a precaution against a runaway loop bug
		$query = $db->getQuery(true)
			->select('COUNT(' . $db->quoteName('id') . ')')
			->from($db->quoteName('#__categories'));
		$db->setQuery($query);

try
		{
			$count = $db->loadResult();
		}
		catch (\RuntimeException $e)
		{
			$this->setError($e->getMessage());

return false;
		}

// Parent exists so let's proceed
		while (!empty($pks) && $count > 0)
		{
			// Pop the first id off the stack
			$pk = array_shift($pks);

$this->table->reset();

// Check that the row actually exists
			if (!$this->table->load($pk))
			{
				if ($error = $this->table->getError())
				{
					// Fatal error
					$this->setError($error);

return false;
				}
				else
				{
					// Not fatal error
					$this->setError(Text::sprintf('JGLOBAL_BATCH_MOVE_ROW_NOT_FOUND', $pk));
					continue;
				}
			}

// Copy is a bit tricky, because we also need to copy the children
			$lft = (int) $this->table->lft;
			$rgt = (int) $this->table->rgt;
			$query->clear()
				->select($db->quoteName('id'))
				->from($db->quoteName('#__categories'))
				->where($db->quoteName('lft') . ' > :lft')
				->where($db->quoteName('rgt') . ' < :rgt')
				->bind(':lft', $lft, ParameterType::INTEGER)
				->bind(':rgt', $rgt, ParameterType::INTEGER);
			$db->setQuery($query);
			$childIds = $db->loadColumn();

// Add child ID's to the array only if they aren't already there.
			foreach ($childIds as $childId)
			{
				if (!in_array($childId, $pks))
				{
					$pks[] = $childId;
				}
			}

// Make a copy of the old ID, Parent ID and Asset ID
			$oldId       = $this->table->id;
			$oldParentId = $this->table->parent_id;
			$oldAssetId  = $this->table->asset_id;

// Reset the id because we are making a copy.
			$this->table->id = 0;

// If we a copying children, the Old ID will turn up in the parents list
			// otherwise it's a new top level item
			$this->table->parent_id = $parents[$oldParentId] ?? $parentId;

// Set the new location in the tree for the node.
			$this->table->setLocation($this->table->parent_id, 'last-child');

// @TODO: Deal with ordering?
			// $this->table->ordering = 1;
			$this->table->level = null;
			$this->table->asset_id = null;
			$this->table->lft = null;
			$this->table->rgt = null;

// Alter the title & alias
			list($title, $alias) = $this->generateNewTitle($this->table->parent_id, $this->table->alias, $this->table->title);
			$this->table->title  = $title;
			$this->table->alias  = $alias;

// Unpublish because we are making a copy
			$this->table->published = 0;

// Store the row.
			if (!$this->table->store())
			{
				$this->setError($this->table->getError());

return false;
			}

// Get the new item ID
			$newId = $this->table->get('id');

// Add the new ID to the array
			$newIds[$pk] = $newId;

// Copy rules
			$query->clear()
				->update($db->quoteName('#__assets', 't'))
				->join('INNER',
					$db->quoteName('#__assets', 's'),
					$db->quoteName('s.id') . ' = :oldid'
				)
				->bind(':oldid', $oldAssetId, ParameterType::INTEGER)
				->set($db->quoteName('t.rules') . ' = ' . $db->quoteName('s.rules'))
				->where($db->quoteName('t.id') . ' = :assetid')
				->bind(':assetid', $this->table->asset_id, ParameterType::INTEGER);
			$db->setQuery($query)->execute();

// Now we log the old 'parent' to the new 'parent'
			$parents[$oldId] = $this->table->id;
			$count--;
		}

// Rebuild the hierarchy.
		if (!$this->table->rebuild())
		{
			$this->setError($this->table->getError());

return false;
		}

// Rebuild the tree path.
		if (!$this->table->rebuildPath($this->table->id))
		{
			$this->setError($this->table->getError());

return false;
		}

return $newIds;
	}

/**
	 * Batch move categories to a new category.
	 *
	 * @param   integer  $value     The new category ID.
	 * @param   array    $pks       An array of row IDs.
	 * @param   array    $contexts  An array of item contexts.
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   1.6
	 */
	protected function batchMove($value, $pks, $contexts)
	{
		$parentId = (int) $value;
		$type = new UCMType;
		$this->type = $type->getTypeByAlias($this->typeAlias);

$db = $this->getDbo();
		$query = $db->getQuery(true);
		$extension = Factory::getApplication()->input->get('extension', '', 'word');

// Check that the parent exists.
		if ($parentId)
		{
			if (!$this->table->load($parentId))
			{
				if ($error = $this->table->getError())
				{
					// Fatal error.
					$this->setError($error);

return false;
				}
				else
				{
					// Non-fatal error.
					$this->setError(Text::_('JGLOBAL_BATCH_MOVE_PARENT_NOT_FOUND'));
					$parentId = 0;
				}
			}

// Check that user has create permission for parent category.
			if ($parentId == $this->table->getRootId())
			{
				$canCreate = $this->user->authorise('core.create', $extension);
			}
			else
			{
				$canCreate = $this->user->authorise('core.create', $extension . '.category.' . $parentId);
			}

if (!$canCreate)
			{
				// Error since user cannot create in parent category
				$this->setError(Text::_('COM_CATEGORIES_BATCH_CANNOT_CREATE'));

return false;
			}

// Check that user has edit permission for every category being moved
			// Note that the entire batch operation fails if any category lacks edit permission
			foreach ($pks as $pk)
			{
				if (!$this->user->authorise('core.edit', $extension . '.category.' . $pk))
				{
					// Error since user cannot edit this category
					$this->setError(Text::_('COM_CATEGORIES_BATCH_CANNOT_EDIT'));

return false;
				}
			}
		}

// We are going to store all the children and just move the category
		$children = array();

// Parent exists so let's proceed
		foreach ($pks as $pk)
		{
			// Check that the row actually exists
			if (!$this->table->load($pk))
			{
				if ($error = $this->table->getError())
				{
					// Fatal error
					$this->setError($error);

return false;
				}
				else
				{
					// Not fatal error
					$this->setError(Text::sprintf('JGLOBAL_BATCH_MOVE_ROW_NOT_FOUND', $pk));
					continue;
				}
			}

// Set the new location in the tree for the node.
			$this->table->setLocation($parentId, 'last-child');

// Check if we are moving to a different parent
			if ($parentId != $this->table->parent_id)
			{
				$lft = (int) $this->table->lft;
				$rgt = (int) $this->table->rgt;

// Add the child node ids to the children array.
				$query->clear()
					->select($db->quoteName('id'))
					->from($db->quoteName('#__categories'))
					->where($db->quoteName('lft') . ' BETWEEN :lft AND :rgt')
					->bind(':lft', $lft, ParameterType::INTEGER)
					->bind(':rgt', $rgt, ParameterType::INTEGER);
				$db->setQuery($query);

try
				{
					$children = array_merge($children, (array) $db->loadColumn());
				}
				catch (\RuntimeException $e)
				{
					$this->setError($e->getMessage());

return false;
				}
			}

// Store the row.
			if (!$this->table->store())
			{
				$this->setError($this->table->getError());

return false;
			}

// Rebuild the tree path.
			if (!$this->table->rebuildPath())
			{
				$this->setError($this->table->getError());

return false;
			}
		}

// Process the child rows
		if (!empty($children))
		{
			// Remove any duplicates and sanitize ids.
			$children = array_unique($children);
			$children = ArrayHelper::toInteger($children);
		}

return true;
	}

/**
	 * Custom clean the cache of com_content and content modules
	 *
	 * @param   string   $group     Cache group name.
	 * @param   integer  $clientId  @deprecated   5.0   No longer used.
	 *
	 * @return  void
	 *
	 * @since   1.6
	 */
	protected function cleanCache($group = null, $clientId = 0)
	{
		$extension = Factory::getApplication()->input->get('extension');

switch ($extension)
		{
			case 'com_content':
				parent::cleanCache('com_content');
				parent::cleanCache('mod_articles_archive');
				parent::cleanCache('mod_articles_categories');
				parent::cleanCache('mod_articles_category');
				parent::cleanCache('mod_articles_latest');
				parent::cleanCache('mod_articles_news');
				parent::cleanCache('mod_articles_popular');
				break;
			default:
				parent::cleanCache($extension);
				break;
		}
	}

/**
	 * Method to change the title & alias.
	 *
	 * @param   integer  $parentId  The id of the parent.
	 * @param   string   $alias     The alias.
	 * @param   string   $title     The title.
	 *
	 * @return  array    Contains the modified title and alias.
	 *
	 * @since   1.7
	 */
	protected function generateNewTitle($parentId, $alias, $title)
	{
		// Alter the title & alias
		$table = $this->getTable();

while ($table->load(array('alias' => $alias, 'parent_id' => $parentId)))
		{
			$title = StringHelper::increment($title);
			$alias = StringHelper::increment($alias, 'dash');
		}

return array($title, $alias);
	}

/**
	 * Method to determine if a category association is available.
	 *
	 * @return  boolean True if a category association is available; false otherwise.
	 */
	public function getAssoc()
	{
		static $assoc = null;

if (!is_null($assoc))
		{
			return $assoc;
		}

$extension = $this->getState('category.extension');

$assoc = Associations::isEnabled();
		$extension = explode('.', $extension);
		$component = array_shift($extension);
		$cname = str_replace('com_', '', $component);

if (!$assoc || !$component || !$cname)
		{
			$assoc = false;

return $assoc;
		}

$componentObject = $this->bootComponent($component);

if ($componentObject instanceof AssociationServiceInterface && $componentObject instanceof CategoryServiceInterface)
		{
			$assoc = true;

return $assoc;
		}

$hname = $cname . 'HelperAssociation';
		\JLoader::register($hname, JPATH_SITE . '/components/' . $component . '/helpers/association.php');

$assoc = class_exists($hname) && !empty($hname::$category_association);

return $assoc;
	}
}

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