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<?php
// $HeadURL: https://joomgallery.org/svn/joomgallery/JG-3/JG/trunk/components/com_joomgallery/models/usercategories.php $
// $Id: usercategories.php 4331 2013-09-08 08:27:42Z erftralle $
/****************************************************************************************\
** JoomGallery 3 **
** By: JoomGallery::ProjectTeam **
** Copyright (C) 2008 - 2013 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.');
/**
* JoomGallery User Categories Model
*
* @package JoomGallery
* @since 1.5.5
*/
class JoomGalleryModelUsercategories extends JoomGalleryModel
{
/**
* Categories data array
*
* @var array
*/
protected $_categories;
/**
* Categories number
*
* @var int
*/
protected $_total = null;
/**
* Constructor
*
* @return void
* @since 1.5.5
*/
public function __construct()
{
$this->filter_fields = array('c.cid',
'c.name',
'c.alias',
'c.parent_id',
'c.published',
'c.access',
'c.owner',
'c.lft',
'c.rgt',
'c.level',
'images'
);
parent::__construct();
}
/**
* Retrieve the category data
*
* @return array Array of objects containing the category data
* @since 1.5.5
*/
public function getCategories()
{
// Guests cannot own any categories
if(!$this->_user->get('id'))
{
return array();
}
if($this->_loadCategories())
{
return $this->_categories;
}
return array();
}
/**
* Method to get the total number of categories
*
* @return mixed The total number of categories or false
* @since 1.5.5
*/
public function getTotal()
{
// Guests cannot own any categories
if(!$this->_user->get('id'))
{
return 0;
}
// Let's load the data if it doesn't already exist
if(empty($this->_total))
{
$query = $this->_buildQuery();
try
{
$this->_total = $this->_getListCount($query);
}
catch(RuntimeException $e)
{
$this->setError($e->getMessage());
return false;
}
}
return $this->_total;
}
/**
* Method to get the starting number of items for the data set.
*
* @return int The starting number of items available in the data set.
* @since 3.0
*/
public function getStart()
{
$start = $this->getState('list.start');
$limit = $this->getState('list.limit');
$total = $this->getTotal();
if($start > $total - $limit)
{
$start = max(0, (int)(ceil($total / $limit) - 1) * $limit);
}
return $start;
}
/**
* Method to get the pagination object for the list.
* This method uses 'getTotal', 'getStart' and the current list limit of this view.
*
* @return object A pagination object
* @since 3.0
*/
public function getPagination()
{
jimport('joomla.html.pagination');
return new JPagination($this->getTotal(), $this->getStart(), $this->getState('list.limit'));
}
/**
* Gets the value of a user state variable and sets it in the session
* This is the same as the method in JApplication except that this also can optionally
* force you back to the first page when a filter has changed
*
* @param string $key The key of the user state variable
* @param string $request The name of the variable passed in a request
* @param string $default The default value for the variable if not found (optional)
* @param string $type Filter for the variable, for valid values see {@link JFilterInput::clean()} (optional)
* @param boolean $resetPage If true, the limitstart in request is set to zero if the state has changed
* @return The requested user state
* @since 3.0
*/
public function getUserStateFromRequest($key, $request, $default = null, $type = 'none', $resetPage = true)
{
$old_state = $this->_mainframe->getUserState($key);
$cur_state = (!is_null($old_state)) ? $old_state : $default;
$new_state = JRequest::getVar($request, null, 'default', $type);
if($cur_state != $new_state && !is_null($new_state) && !is_null($old_state) && $resetPage)
{
JRequest::setVar('limitstart', 0);
}
// Save the new value only if it was set in this request.
if($new_state !== null)
{
$this->_mainframe->setUserState($key, $new_state);
}
else
{
$new_state = $cur_state;
}
return $new_state;
}
/**
* Method to auto-populate the model state.
*
* This method should only be called once per instantiation and is designed
* to be called on the first call to the getState() method unless the model
* configuration flag to ignore the request is set.
*
* Note. Calling getState in this method will result in recursion.
*
* @param string $ordering An optional ordering field.
* @param string $direction An optional direction (asc|desc).
*
* @return void
*
* @since 3.0
*/
protected function populateState($ordering = 'c.lft', $direction = 'asc')
{
$search = $this->getUserStateFromRequest('joom.usercategories.filter.search', 'filter_search');
$this->setState('filter.search', $search);
$published = $this->getUserStateFromRequest('joom.usercategories.filter.state', 'filter_state', '');
$this->setState('filter.state', $published);
$value = $this->getUserStateFromRequest('global.list.limit', 'limit', $this->_mainframe->getCfg('list_limit'));
$limit = $value;
$this->setState('list.limit', $limit);
$value = $this->getUserStateFromRequest('joom.usercategories.limitstart', 'limitstart', 0);
$limitstart = ($limit != 0 ? (floor($value / $limit) * $limit) : 0);
$this->setState('list.start', $limitstart);
// Check if the ordering field is in the white list, otherwise use the incoming value
$value = $this->getUserStateFromRequest('joom.usercategories.ordercol', 'filter_order', $ordering);
if(!in_array($value, $this->filter_fields))
{
$value = $ordering;
$this->_mainframe->setUserState('joom.usercategories.ordercol', $value);
}
$this->setState('list.ordering', $value);
// Check if the ordering direction is valid, otherwise use the incoming value
$value = $this->getUserStateFromRequest('joom.usercategories.orderdirn', 'filter_order_Dir', $direction);
if(!in_array(strtoupper($value), array('ASC', 'DESC', '')))
{
$value = $direction;
$this->_mainframe->setUserState('joom.usercategories.orderdirn', $value);
}
$this->setState('list.direction', $value);
if($search || $published)
{
$this->setState('filter.inuse', 1);
}
}
/**
* Loads the categories data from the database
*
* @return boolean True on success, false otherwise
* @since 1.5.5
*/
protected function _loadCategories()
{
// Let's load the data if it doesn't already exist
if(empty($this->_categories))
{
$query = $this->_buildQuery();
if(!$rows = $this->_getList($query, $this->getState('list.start'), $this->getState('list.limit')))
{
return false;
}
$this->_categories = $rows;
}
return true;
}
/**
* Returns the query to get the category rows from the database
*
* @return string The query to be used to retrieve the category rows from the database
* @since 1.5.5
*/
protected function _buildQuery()
{
$query = $this->_db->getQuery(true)
->select('c.*')
->select('(SELECT COUNT(cid) FROM '._JOOM_TABLE_CATEGORIES.' AS b WHERE b.parent_id = c.cid) AS children')
->select('(SELECT COUNT(id) FROM '._JOOM_TABLE_IMAGES.' AS a WHERE a.catid = c.cid) AS images')
->from(_JOOM_TABLE_CATEGORIES.' AS c')
->where('parent_id > 0')
// Join over the images for category thumbnail
->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()).'))');
// Filter by state
$filter = $this->getState('filter.state');
switch($filter)
{
case 1:
// Published
$query->where('c.published = 1');
break;
case 2:
// Not published
$query->where('c.published = 0');
break;
default:
// No filter by state
break;
}
// Search
$search = $this->getState('filter.search');
if(!empty($search))
{
if(stripos($search, 'id:') === 0)
{
$query->where('c.cid = '.(int) substr($search, 3));
}
else
{
$search = $this->_db->Quote('%'.$this->_db->escape($search, true).'%');
$query->where('(c.name LIKE '.$search.' OR c.alias LIKE '.$search.' OR LOWER(description) LIKE '.$search.')');
}
}
// A Super User will see all categories if the correspondent backend option is enabled
if(!$this->_config->get('jg_showallpicstoadmin') || !$this->_user->authorise('core.admin'))
{
$query->where('c.owner = '.$this->_user->get('id'));
}
// Add the order clause
$query->order($this->_db->escape($this->getState('list.ordering', 'c.lft')).' '.$this->_db->escape($this->getState('list.direction', 'asc')));
return $query;
}
}