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<?php
// $HeadURL: https://joomgallery.org/svn/joomgallery/JG-2.0/JG/trunk/components/com_joomgallery/models/gallery.php $
// $Id: gallery.php 3860 2012-09-14 21:17:01Z erftralle $
/****************************************************************************************\
** JoomGallery 2 **
** By: JoomGallery::ProjectTeam **
** Copyright (C) 2008 - 2012 JoomGallery::ProjectTeam **
** Based on: JoomGallery 1.0.0 by JoomGallery::ProjectTeam **
** Released under GNU GPL Public License **
** License: http://www.gnu.org/copyleft/gpl.html or have a look **
** at administrator/components/com_joomgallery/LICENSE.TXT **
\****************************************************************************************/
defined('_JEXEC') or die('Direct Access to this location is not allowed.');
/**
* Gallery view model
*
* @package JoomGallery
* @since 1.5.5
*/
class JoomGalleryModelGallery extends JoomGalleryModel
{
/**
* Categories data array
*
* @var array
*/
private $_categories;
/**
* Categories number
*
* @var int
*/
private $_total = null;
/**
* Categories data array (without empty categories)
*
* @var array
*/
private $_categorieswithoutempty;
/**
* Categories number (without empty categories)
*
* @var int
*/
private $_totalwithoutempty = null;
/**
* Returns the array of all available main categories of the gallery
*
* @return array Categories objects array
* @since 1.5.5
*/
public function getCategories()
{
if($this->_loadCategories())
{
return $this->_categories;
}
return array();
}
/**
* Method to get the total number of categories
*
* @return int The total number of categories
* @since 1.5.5
*/
public function getTotal()
{
// Let's load the categories if they doesn't already exist
if(empty($this->_total))
{
$query = $this->_buildQuery();
$this->_total = $this->_getListCount($query);
}
return $this->_total;
}
/**
* Returns the array of all available main categories
* of the gallery without empty categories
*
* @return array Categories objects array
* @since 1.5.7
*/
public function getCategoriesWithoutEmpty()
{
if($this->_loadCategoriesWithoutEmpty())
{
// We still have to select the categories according to the pagination
$limit = $this->_config->get('jg_catperpage');#JRequest::getVar('limit', 0, '', 'int');
$limitstart = JRequest::getInt('limitstart', 0);
$cats = array_slice($this->_categorieswithoutempty, $limitstart, $limit);
return $cats;
}
return array();
}
/**
* Method to get the total number of categories without empty categories
*
* @return int The total number of categories without empty ones
* @since 1.5.7
*/
public function getTotalWithoutEmpty()
{
// Let's calculate the number if it doesn't already exist
if(empty($this->_totalwithoutempty))
{
if(!$this->_loadCategoriesWithoutEmpty())
{
return 0;
}
}
return $this->_totalwithoutempty;
}
/**
* Method to get the data of a random image
*
* @access public
* @return object The data of a random image
* @since 1.5.5
*/
public function getRandomImage($catid = 0, $random_catid = 0)
{
$query = $this->_db->getQuery(true)
->select('*, c.access')
->from(_JOOM_TABLE_IMAGES.' AS p')
->leftJoin(_JOOM_TABLE_CATEGORIES.' AS c ON c.cid = p.catid');
if($this->_config->get('jg_showrandomcatthumb') == 1)
{
$query->where('p.catid = '.$catid);
}
else
{
if($this->_config->get('jg_showrandomcatthumb') >= 2)
{
$query->where('p.catid = '.$random_catid);
}
}
$authorisedViewLevels = implode(',', $this->_user->getAuthorisedViewLevels());
$query->where('p.access IN ('.$authorisedViewLevels.')')
->where('p.published = 1')
->where('p.approved = 1')
->where('p.hidden != 1')
->where('c.access IN ('.$authorisedViewLevels.')')
->where('c.published = 1');
$this->_db->setQuery($query);
if(!$rows = $this->_db->loadObjectList())
{
return false;
}
$row = $rows[mt_rand(0, count($rows)-1)];
return $row;
}
/**
* Loads the data of all available categories from the database
*
* @return boolean True on success, false otherwise
* @since 1.5.5
*/
private function _loadCategories()
{
// Let's load the data if it doesn't already exist
if(empty($this->_categories))
{
// Get the pagination request variables
$limit = $this->_config->get('jg_catperpage');#JRequest::getVar('limit', 0, '', 'int');
$limitstart = JRequest::getInt('limitstart', 0);
$query = $this->_buildQuery();
if(!$rows = $this->_getList($query, $limitstart, $limit))
{
return false;
}
$this->_categories = $rows;
}
return true;
}
/**
* Loads the data of all available categories from the database
* and checks whether the categories are empty.
* This method stores only the categories which aren't empty after that.
*
* @return boolean True on success, false otherwise
* @since 1.5.7
*/
private function _loadCategoriesWithoutEmpty()
{
// Let's load the data if it doesn't already exist
if(empty($this->_categorieswithoutempty))
{
$query = $this->_buildQuery();
if(!$cats = $this->_getList($query))
{
return false;
}
foreach($cats as $key => $cat)
{
// Get all sub-categories for each category which contain images
$show_all = $this->_config->get('jg_showrestrictedcats');
$subcategories = JoomHelper::getAllSubCategories($cat->cid, true, false, $show_all);
if(!count($subcategories))
{
unset($cats[$key]);
}
}
$this->_categorieswithoutempty = $cats;
$this->_totalwithoutempty = count($cats);
}
return true;
}
/**
* Returns the query for loading all available categories of the gallery
*
* @return string The query to be used to retrieve the categories from the database
* @since 1.5.5
*/
private function _buildQuery()
{
$query = $this->_db->getQuery(true)
->select('c.*')
->from(_JOOM_TABLE_CATEGORIES.' AS c');
// Join over the images if necessary
if($this->_config->get('jg_showcatthumb') >= 2)
{
$query->select('i.id, i.catid, i.imgthumbname, i.hidden AS imghidden')
->leftJoin(_JOOM_TABLE_IMAGES.' AS i ON ( c.thumbnail = i.id
AND i.published = 1
AND i.approved = 1
AND i.access IN ('.implode(',', $this->_user->getAuthorisedViewLevels()).'))');
}
$query->where('c.published = 1')
->where('c.hidden = 0')
->where('c.parent_id = 1');
if(!$this->_config->get('jg_showrestrictedcats'))
{
$query->where('c.access IN ('.implode(',', $this->_user->getAuthorisedViewLevels()).')');
}
if($this->_config->get('jg_hideemptycats'))
{
$query->where(' (((SELECT COUNT(id) FROM '._JOOM_TABLE_IMAGES.' AS i WHERE i.catid = c.cid) != 0)
OR
((SELECT COUNT(cid) FROM '._JOOM_TABLE_CATEGORIES.' AS sc WHERE sc.parent_id = c.cid) != 0))');
}
if($this->_config->get('jg_ordercatbyalpha'))
{
$query->order('c.name');
}
else
{
$query->order('c.lft');
}
return $query;
}
}