<?php
/**
 * @package DJ-Catalog2
 * @copyright Copyright (C) DJ-Extensions.com, All rights reserved.
 * @license http://www.gnu.org/licenses GNU/GPL
 * @author url: http://dj-extensions.com
 * @author email contact@dj-extensions.com
 */


// no direct access
defined('_JEXEC') or die;

jimport('joomla.application.component.modellist');

class Djcatalog2ModelFields extends JModelList
{
	public function __construct($config = array())
	{
		if (empty($config['filter_fields'])) {
			$config['filter_fields'] = array(
				'id', 'a.id',
				'name', 'a.name',
				'alias', 'a.alias',
				'ordering', 'a.ordering',
				'published', 'a.published',
				'language', 'a.language',
				'filter_fieldgroup', 'fieldgroup',
				'group_name', 'a.type',
                'association',
			);
		}

		parent::__construct($config);
	}
	protected function populateState($ordering = null, $direction = null)
	{
		// List state information.
		parent::populateState('a.name', 'asc');
		
		// Initialise variables.
		$app = JFactory::getApplication();
		$session = JFactory::getSession();

		$search = $this->getUserStateFromRequest($this->context.'.filter.search', 'filter_search');
		$this->setState('filter.search', $search);

		$published = $this->getUserStateFromRequest($this->context.'.filter.published', 'filter_published', '');
		$this->setState('filter.published', $published);
		
		$fieldgroup = $this->getUserStateFromRequest($this->context.'.filter.fieldgroup', 'filter_fieldgroup', '');
		$this->setState('filter.fieldgroup', $fieldgroup);

		// Load the parameters.
		$params = JComponentHelper::getParams('com_djcatalog2');
		$this->setState('params', $params);

        $language = $this->getUserStateFromRequest($this->context.'.filter.language', 'filter_language', '');
        $this->setState('filter.language', $language);

        // Adjust the context to support modal layouts.
        if ($layout = $app->input->get('layout'))
        {
            $this->context .= '.' . $layout;
        }

        // Adjust the context to support forced languages.
        $forcedLanguage = $app->input->get('forcedLanguage', '', 'CMD');
        if ($forcedLanguage)
        {
            $this->context .= '.' . $forcedLanguage;
        }

        parent::populateState($ordering, $direction);

        // If there's a forced language then define that filter for the query where clause
        if (!empty($forcedLanguage))
        {
            $this->setState('filter.language', $forcedLanguage);
        }
	}

	protected function getStoreId($id = '')
	{
		// Compile the store id.
		$id	.= ':'.$this->getState('filter.search');
		$id	.= ':'.$this->getState('filter.published');
		$id	.= ':'.$this->getState('filter.fieldgroup');
		$id	.= ':'.$this->getState('filter.language');

		return parent::getStoreId($id);
	}

	protected function getListQuery()
	{
		// Create a new query object.
		$db = $this->getDbo();
		$query = $db->getQuery(true);

		// Select the required fields from the table.
		$query->select(
			$this->getState(
				'list.select',
				'a.*'
			)
		);
		$query->from('#__djc2_items_extra_fields AS a');
		
		$query->select('g.name AS group_name');
		$query->join('LEFT', '#__djc2_items_extra_fields_groups AS g ON g.id = a.group_id');
		
		// Filter by published state
		$published = $this->getState('filter.published');
		if (is_numeric($published)) {
			$query->where('a.published = ' . (int) $published);
		}
		else if ($published === '') {
			$query->where('(a.published = 0 OR a.published = 1)');
		}


		// Filter by search in title.
		$search = $this->getState('filter.search');
		if (!empty($search)) {
			if (stripos($search, 'id:') === 0) {
				$query->where('a.id = '.(int) substr($search, 3));
			}
			else {
				$search = $db->quote('%'.$db->escape($search, true).'%');
				$query->where('(a.name LIKE '.$search.' OR a.alias LIKE '.$search.')');
			}
		}
		
		$fieldgroup = $this->getState('filter.fieldgroup');
		if (is_numeric($fieldgroup) && $fieldgroup != 0) {
			$query->where('a.group_id = ' . (int) $fieldgroup);
		}

		// Multilang
        // Join over the associations - we just want to know if there are any, at this stage
        if (JLanguageAssociations::isEnabled())
        {
            $query->select('COUNT(asso2.id)>1 as association')
                ->join('LEFT', '#__associations AS asso ON asso.id = a.id AND asso.context=' . $db->quote('com_djcatalog2.field'))
                ->join('LEFT', '#__associations AS asso2 ON asso2.key = asso.key')
                ->group('a.id');
        }

        $query
            ->select(array('l.title AS language_title', 'l.image AS language_image'))
            ->join('LEFT', $db->quoteName('#__languages', 'l') . ' ON lang_code = a.language');

        // Filter by lang
        $app = JFactory::getApplication();
        $requestLang = $app->input->get('language');
        $lang = $this->getState('filter.language');
        if($requestLang) {
            $query->where('a.language = ' . $db->quote($requestLang));
        }elseif ($lang) {
            $query->where('a.language = ' . $db->quote($lang));
        }

		// Add the list ordering clause.
		$orderCol	= $this->state->get('list.ordering', 'a.id');
		$orderDirn	= $this->state->get('list.direction', 'DESC');
		if ($orderCol == 'a.ordering' || $orderCol == 'group_name') {
			$orderCol = 'group_name '.$orderDirn.', a.ordering';
		}
	
		$query->order($db->escape($orderCol.' '.$orderDirn));

		return $query;
	}
	public function getFieldgroups(){
		if(empty($this->_fieldgroups)) {
			$query = "SELECT * FROM #__djc2_items_extra_fields_groups ORDER BY name";
			$this->_fieldgroups = $this->_getList($query,0,0);
		}
		return $this->_fieldgroups;
	}
	
}
