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<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_finder
 *
 * @copyright   Copyright (C) 2005 - 2020 Open Source Matters, Inc. All
rights reserved.
 * @license     GNU General Public License version 2 or later; see
LICENSE.txt
 */

defined('_JEXEC') or die;

/**
 * Filters model class for Finder.
 *
 * @since  2.5
 */
class FinderModelFilters extends JModelList
{
	/**
	 * Constructor.
	 *
	 * @param   array  $config  An associative array of configuration
settings. [optional]
	 *
	 * @since   2.5
	 * @see     JControllerLegacy
	 */
	public function __construct($config = array())
	{
		if (empty($config['filter_fields']))
		{
			$config['filter_fields'] = array(
				'filter_id', 'a.filter_id',
				'title', 'a.title',
				'state', 'a.state',
				'created_by_alias', 'a.created_by_alias',
				'created', 'a.created',
				'map_count', 'a.map_count'
			);
		}

		parent::__construct($config);
	}

	/**
	 * Build an SQL query to load the list data.
	 *
	 * @return  JDatabaseQuery  A JDatabaseQuery object
	 *
	 * @since   2.5
	 */
	protected function getListQuery()
	{
		$db = $this->getDbo();
		$query = $db->getQuery(true);

		// Select all fields from the table.
		$query->select('a.*')
			->from($db->quoteName('#__finder_filters',
'a'));

		// Join over the users for the checked out user.
		$query->select($db->quoteName('uc.name',
'editor'))
			->join('LEFT', $db->quoteName('#__users',
'uc') . ' ON ' . $db->quoteName('uc.id') .
' = ' . $db->quoteName('a.checked_out'));

		// Join over the users for the author.
		$query->select($db->quoteName('ua.name',
'user_name'))
			->join('LEFT', $db->quoteName('#__users',
'ua') . ' ON ' . $db->quoteName('ua.id') .
' = ' . $db->quoteName('a.created_by'));

		// Check for a search filter.
		if ($search = $this->getState('filter.search'))
		{
			$search = $db->quote('%' . str_replace(' ',
'%', $db->escape(trim($search), true) . '%'));
			$query->where($db->quoteName('a.title') . ' LIKE
' . $search);
		}

		// If the model is set to check item state, add to the query.
		$state = $this->getState('filter.state');

		if (is_numeric($state))
		{
			$query->where($db->quoteName('a.state') . ' =
' . (int) $state);
		}

		// Add the list ordering clause.
		$query->order($db->escape($this->getState('list.ordering',
'a.title') . ' ' .
$db->escape($this->getState('list.direction',
'ASC'))));

		return $query;
	}

	/**
	 * Method to get a store id based on model configuration state.
	 *
	 * This is necessary because the model is used by the component and
	 * different modules that might need different sets of data or different
	 * ordering requirements.
	 *
	 * @param   string  $id  A prefix for the store id. [optional]
	 *
	 * @return  string  A store id.
	 *
	 * @since   2.5
	 */
	protected function getStoreId($id = '')
	{
		// Compile the store id.
		$id .= ':' . $this->getState('filter.search');
		$id .= ':' . $this->getState('filter.state');

		return parent::getStoreId($id);
	}

	/**
	 * Method to auto-populate the model state.  Calling getState in this
method will result in recursion.
	 *
	 * @param   string  $ordering   An optional ordering field. [optional]
	 * @param   string  $direction  An optional direction. [optional]
	 *
	 * @return  void
	 *
	 * @since   2.5
	 */
	protected function populateState($ordering = 'a.title',
$direction = 'asc')
	{
		// Load the filter state.
		$this->setState('filter.search',
$this->getUserStateFromRequest($this->context .
'.filter.search', 'filter_search', '',
'string'));
		$this->setState('filter.state',
$this->getUserStateFromRequest($this->context .
'.filter.state', 'filter_state', '',
'cmd'));

		// Load the parameters.
		$params = JComponentHelper::getParams('com_finder');
		$this->setState('params', $params);

		// List state information.
		parent::populateState($ordering, $direction);
	}
}