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<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_finder
 *
 * @copyright   (C) 2011 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Finder\Administrator\Model;

\defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\Form\Form;
use Joomla\CMS\MVC\Model\AdminModel;
use Joomla\Component\Finder\Administrator\Table\FilterTable;

/**
 * Filter model class for Finder.
 *
 * @since  2.5
 */
class FilterModel extends AdminModel
{
	/**
	 * The prefix to use with controller messages.
	 *
	 * @var    string
	 * @since  2.5
	 */
	protected $text_prefix = 'COM_FINDER';

/**
	 * Model context string.
	 *
	 * @var    string
	 * @since  2.5
	 */
	protected $context = 'com_finder.filter';

/**
	 * Custom clean cache method.
	 *
	 * @param   string   $group     The component name. [optional]
	 * @param   integer  $clientId  @deprecated   5.0   No longer used.
	 *
	 * @return  void
	 *
	 * @since   2.5
	 */
	protected function cleanCache($group = 'com_finder', $clientId = 0)
	{
		parent::cleanCache($group);
	}

/**
	 * Method to get the filter data.
	 *
	 * @return  FilterTable|boolean  The filter data or false on a failure.
	 *
	 * @since   2.5
	 */
	public function getFilter()
	{
		$filter_id = (int) $this->getState('filter.id');

// Get a FinderTableFilter instance.
		$filter = $this->getTable();

// Attempt to load the row.
		$return = $filter->load($filter_id);

// Check for a database error.
		if ($return === false && $filter->getError())
		{
			$this->setError($filter->getError());

return false;
		}

// Process the filter data.
		if (!empty($filter->data))
		{
			$filter->data = explode(',', $filter->data);
		}
		elseif (empty($filter->data))
		{
			$filter->data = array();
		}

return $filter;
	}

/**
	 * Method to get the record form.
	 *
	 * @param   array    $data      Data for the form. [optional]
	 * @param   boolean  $loadData  True if the form is to load its own data (default case), false if not. [optional]
	 *
	 * @return  Form|boolean  A \JForm object on success, false on failure
	 *
	 * @since   2.5
	 */
	public function getForm($data = array(), $loadData = true)
	{
		// Get the form.
		$form = $this->loadForm('com_finder.filter', 'filter', array('control' => 'jform', 'load_data' => $loadData));

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

return $form;
	}

/**
	 * Method to get the data that should be injected in the form.
	 *
	 * @return  mixed  The data for the form.
	 *
	 * @since   2.5
	 */
	protected function loadFormData()
	{
		// Check the session for previously entered form data.
		$data = Factory::getApplication()->getUserState('com_finder.edit.filter.data', array());

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

$this->preprocessData('com_finder.filter', $data);

return $data;
	}

/**
	 * Method to get the total indexed items
	 *
	 * @return  number the number of indexed items
	 *
	 * @since  3.5
	 */
	public function getTotal()
	{
		$db    = $this->getDbo();
		$query = $db->getQuery(true)
			->select('MAX(link_id)')
			->from('#__finder_links');

return $db->setQuery($query)->loadResult();
	}
}