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<?php
// $HeadURL: https://joomgallery.org/svn/joomgallery/JG-2.0/JG/trunk/administrator/components/com_joomgallery/models/categories.php $
// $Id: categories.php 3848 2012-09-13 16:03:31Z chraneco $
/****************************************************************************************\
** 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.');
/**
* Categories model
*
* @package JoomGallery
* @since 1.5.5
*/
class JoomGalleryModelCategories extends JoomGalleryModel
{
/**
* Categories data array
*
* @var array
*/
protected $_categories = null;
/**
* Categories number
*
* @var int
*/
protected $_total = null;
/**
* Constructor
*
* @param array An optional associative array of configuration settings
* @return void
* @since 2.0
*/
public function __construct($config = array())
{
parent::__construct($config);
$this->filter_fields = array(
'cid', 'c.cid',
'name', 'c.name',
'alias', 'c.alias',
'parent_id', 'c.parent_id',
'published', 'c.published',
'access', 'c.access', 'access_level',
'owner', 'c.owner',
'lft', 'c.lft',
'rgt', 'c.rgt',
'level', 'c.level'
);
}
/**
* Retrieves the data of the categories
*
* @return array Array of objects containing the categories data from the database
* @since 1.5.5
*/
public function getCategories()
{
// Let's load the data if it doesn't already exist
if(empty($this->_categories))
{
// Get the data of the categories which will actually be displayed
$query = $this->_buildQuery();
$this->_db->setQuery($query, $this->getState('list.start'), $this->getState('list.limit'));
$current_categories = $this->_db->loadObjectList('cid');
// Get the complete category structure (containing only
// the categories which we are allowed to display)
$categories = $this->_ambit->getCategoryStructure();
$levels = array();
$ordering = array();
$this->_categories = array();
foreach($categories as $key => $category)
{
// Check whether the current category will be displayed
if(isset($current_categories[$key]))
{
// If yes insert it into the array which will be used later on
$this->_categories[$key] = $current_categories[$key];
// Create an array which will help to organize ordering later on
$ordering[$category->parent_id][] = $key;
}
}
$this->setState('ordering.array', $ordering);
// Check whether we aren't displaying all categories in default order
if($this->getState('list.ordering') != 'c.lft')
{
$this->_categories = $current_categories;
foreach($this->_categories as $key => $category)
{
// Unset all categories which aren't in category structure
// because we aren't allowed to display them
if(!isset($categories[$key]))
{
unset($this->_categories[$key]);
}
}
}
}
return $this->_categories;
}
/**
* Method to get the pagination object for the list.
* This method uses 'getTotel', 'getStart' and the current
* list limit of this view.
*
* @return object A pagination object
* @since 2.0
*/
public function getPagination()
{
jimport('joomla.html.pagination');
return new JPagination($this->getTotal(), $this->getStart(), $this->getState('list.limit'));
}
/**
* Method to get the total number of categories
*
* @return int The total number of categories
* @since 1.5.5
*/
public function getTotal()
{
// Let's load the number of categories if it doesn't already exist
if(empty($this->_total))
{
$query = $this->_buildQuery();
$this->_total = $this->_getListCount($query);
}
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 2.0
*/
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 $start;
}
/**
* Method to auto-populate the model state.
*
* Note. Calling getState in this method will result in recursion.
*
* @param string An optional ordering field.
* @param string An optional direction (asc|desc).
* @return void
* @since 2.0
*/
protected function populateState($ordering = 'c.lft', $direction = 'ASC')
{
$search = $this->getUserStateFromRequest('joom.categories.filter.search', 'filter_search');
$this->setState('filter.search', $search);
$access = $this->getUserStateFromRequest('joom.categories.filter.access', 'filter_access', 0, 'int');
$this->setState('filter.access', $access);
$published = $this->getUserStateFromRequest('joom.categories.filter.published', 'filter_published', '');
$this->setState('filter.published', $published);
$type = $this->getUserStateFromRequest('joom.categories.filter.type', 'filter_type', '');
$this->setState('filter.type', $type);
$value = $this->getUserStateFromRequest('global.list.limit', 'limit', $this->_mainframe->getCfg('list_limit'));
$limit = $value;
$this->setState('list.limit', $limit);
$value = $this->getUserStateFromRequest('joom.categories.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.categories.ordercol', 'filter_order', $ordering);
if(!in_array($value, $this->filter_fields))
{
$value = $ordering;
$this->_mainframe->setUserState('joom.categories.ordercol', $value);
}
$this->setState('list.ordering', $value);
// Check if the ordering direction is valid, otherwise use the incoming value
$value = $this->getUserStateFromRequest('joom.categories.orderdirn', 'filter_order_Dir', $direction);
if(!in_array(strtoupper($value), array('ASC', 'DESC', '')))
{
$value = $direction;
$this->_mainframe->setUserState('joom.categories.orderdirn', $value);
}
$this->setState('list.direction', $value);
if($search || $access || $published || $type)
{
$this->setState('filter.inuse', 1);
}
}
/**
* Returns the query for listing the categories
*
* @return object The query to be used to retrieve the categories data from the database
* @since 1.5.5
*/
protected function _buildQuery()
{
// Create a new query object
$query = $this->_db->getQuery(true);
// Select the required fields from the table
$query->select('c.*')
->from(_JOOM_TABLE_CATEGORIES.' AS c');
// Join over the access levels
$query->select('v.title AS access_level')
->join('LEFT', '#__viewlevels AS v ON v.id = c.access');
// Join over the users
$query->join('LEFT', '#__users AS u ON u.id = c.owner');
// ROOT category shouldn't be selected
$query->where('parent_id > 0');
// Filter by allowed access levels
if(!$this->_user->authorise('core.admin'))
{
$query->where('c.access IN ('.implode(',', $this->_user->getAuthorisedViewLevels()).')');
}
// Filter by access level
if($access = $this->getState('filter.access'))
{
$query->where('c.access = '.(int) $access);
}
// Filter by state
$published = $this->getState('filter.published');
switch($published)
{
case 1:
// Published
$query->where('published = 1');
break;
case 2:
// Not published
$query->where('published = 0');
break;
default:
// No filter by state
break;
}
// Filter by type
$type = $this->getState('filter.type');
switch($type)
{
case 1:
// User categories
$query->where('c.owner != 0');
break;
case 2:
// Administrator categories
$query->where('c.owner = 0');
break;
default:
// No filter by type
break;
}
// Filter by search
$search = $this->getState('filter.search');
if(!empty($search))
{
if(stripos($search, 'id:') === 0)
{
$query->where('c.cid = '.(int) substr($search, 3));
}
else
{
if(stripos($search, 'author:') === 0)
{
$search = $this->_db->Quote('%'.$this->_db->getEscaped(substr($search, 7), true).'%');
$query->where('(u.name LIKE '.$search.' OR u.username LIKE '.$search.')');
}
else
{
$search = $this->_db->Quote('%'.$this->_db->getEscaped($search, true).'%');
$query->where('(c.name LIKE '.$search.' OR c.alias LIKE '.$search.' OR LOWER(c.description) LIKE '.$search.')');
}
}
}
// Add the order clause
$query->order($this->_db->getEscaped($this->getState('list.ordering', 'c.lft')).' '.$this->_db->getEscaped($this->getState('list.direction', 'ASC')));
return $query;
}
/**
* Method to delete one or more categories
*
* @return int Number of successfully deleted categories, boolean false if an error occured
* @since 1.5.5
*/
public function delete()
{
$cids = JRequest::getVar('cid', array(), '', 'array');
if(!count($cids))
{
$this->_mainframe->enqueueMessage(JText::_('COM_JOOMGALLERY_COMMON_MSG_NO_CATEGORIES_SELECTED'));
return false;
}
$delete_categories = array();
$delete_images = array();
$count = 0;
$row = $this->getTable('joomgallerycategories');
// Loop through selected categories
foreach($cids as $cid)
{
// Check whether we are allowed to delete this category
if(!$this->_user->authorise('core.delete', _JOOM_OPTION.'.category.'.$cid))
{
$this->_mainframe->enqueueMessage(JText::sprintf('COM_JOOMGALLERY_CATMAN_ERROR_DELETE_NOT_PERMITTED', $cid), 'error');
continue;
}
$delete = true;
// Check whether there are sub-categories
// We can't use category structure here because sub-categories may have
// already been deleted in the same request, so the structure isn't up-to-date
$query = $this->_db->getQuery(true)
->select('c.cid')
->from(_JOOM_TABLE_CATEGORIES.' AS c')
->from(_JOOM_TABLE_CATEGORIES.' AS n')
->where('c.lft BETWEEN n.lft AND n.rgt')
->where('n.cid = '.$cid);
$this->_db->setQuery($query);
$subcategories = $this->_db->loadColumn();
if(count($subcategories) > 1)
{
$msg = JText::sprintf('COM_JOOMGALLERY_CATMAN_MSG_CATEGORY_NOT_EMPTY_CATEGORIES', $cid);
$this->_mainframe->enqueueMessage($msg, 'notice');
$delete = false;
$delete_categories = array_unique(array_merge($delete_categories, $subcategories));
}
// Database query to check assigned images to category
$query = $this->_db->getQuery(true)
->select('id')
->from(_JOOM_TABLE_IMAGES)
->where('catid IN ('.implode(',', $subcategories).')');
$this->_db->setQuery($query);
$images = $this->_db->loadResultArray();
if(count($images))
{
$msg = JText::sprintf('COM_JOOMGALLERY_CATMAN_MSG_CATEGORY_NOT_EMPTY_IMAGES', $cid);
$this->_mainframe->enqueueMessage($msg, 'notice');
$delete = false;
$delete_images = array_unique(array_merge($delete_images, $images));
$delete_categories = array_unique(array_merge($delete_categories, array($cid)));
}
if($delete)
{
$catpath = JoomHelper::getCatPath($cid);
if(!$this->_deleteFolders($catpath))
{
$this->setError(JText::_('COM_JOOMGALLERY_CATMAN_MSG_ERROR_DELETING_DIRECTORIES'));
return false;
}
$row->load($cid);
if(!$row->delete())
{
$this->setError($row->getError());
return false;
}
$this->_mainframe->triggerEvent('onContentAfterDelete', array(_JOOM_OPTION.'.category', $row));
// Category successfully deleted
$count++;
}
}
$this->_mainframe->setUserState('joom.categories.delete.categories', $delete_categories);
$this->_mainframe->setUserState('joom.categories.delete.images', $delete_images);
$cat_count = count($delete_categories);
$img_count = count($delete_images);
if($cat_count || $img_count)
{
$msg = '<br />'.JText::_('COM_JOOMGALLERY_CATMAN_MSG_DELETECOMPLETELY');
if($img_count)
{
if($img_count == 1)
{
$msg .= '<br />'.JText::_('COM_JOOMGALLERY_CATMAN_MSG_DELETECOMPLETELY_IMAGES_NUMBER_1');
}
else
{
$msg .= '<br />'.JText::sprintf('COM_JOOMGALLERY_CATMAN_MSG_DELETECOMPLETELY_IMAGES_NUMBER', $img_count);
}
}
if($cat_count)
{
if($cat_count == 1)
{
$msg .= '<br />'.JText::_('COM_JOOMGALLERY_CATMAN_MSG_DELETECOMPLETELY_CATEGORIES_NUMBER_1');
}
else
{
$msg .= '<br />'.JText::sprintf('COM_JOOMGALLERY_CATMAN_MSG_DELETECOMPLETELY_CATEGORIES_NUMBER', $cat_count);
}
}
$msg .= '<br /><br />'.JText::_('COM_JOOMGALLERY_CATMAN_MSG_DELETECOMPLETELY_NOTE').'<p/>
<form action="index.php?option='._JOOM_OPTION.'&controller=categories&task=deletecompletely" method="post" onsubmit="if(!this.security_check.checked){return false;}">
<span><input type="checkbox" name="security_check" value="1" /> <button>'.JText::_('COM_JOOMGALLERY_CATMAN_MSG_DELETECOMPLETELY_BUTTON_LABEL').'</button></span>
</form><p/>';
$this->_mainframe->enqueueMessage($msg, 'notice');
}
// Reset the user state variable 'catid' for filtering in images manager
$this->_mainframe->setUserState('joom.images.catid', 0);
return $count;
}
/**
* Returns given category IDs in a specific ordering
*
* @param array $categories The category IDs to order
* @param string $ordering The database table column to use for ordering
* @param string $direction The direction to use for ordering
* @return array An array with the ordered category IDs
* @since 2.0
*/
public function getOrderedCategories($categories, $ordering = 'lft', $direction = 'ASC')
{
// Sanitise variables
JArrayHelper::toInteger($categories);
if(!in_array($ordering, $this->filter_fields))
{
$ordering = 'lft';
}
if(!in_array(strtoupper($direction), array('ASC', 'DESC', '')))
{
$direction = 'ASC';
}
$query = $this->_db->getQuery(true)
->select('cid')
->from(_JOOM_TABLE_CATEGORIES)
->where('cid IN ('.implode(',', $categories).')')
->order($ordering.' '.$direction);
$this->_db->setQuery($query);
return $this->_db->loadColumn();
}
/**
* Publishes/unpublishes or approves/rejects one or more categories
*
* @param array $cid An array of category IDs to work with
* @param int $publish 1 for publishing and approving, 0 otherwise
* @param string $task 'publish' for publishing/unpublishing, anything else otherwise
* @return int The number of successfully edited categories, boolean false if an error occured
* @since 1.5.5
*/
public function publish($cid, $publish = 1, $task = 'publish')
{
JArrayHelper::toInteger($cid);
$publish = intval($publish);
$count = count($cid);
$row = $this->getTable('joomgallerycategories');
$column = 'approved';
if($task == 'publish')
{
$column = 'published';
}
foreach($cid as $catid)
{
$row->load($catid);
$row->$column = $publish;
if(!$row->check())
{
$count--;
continue;
}
if(!$row->store())
{
$count--;
continue;
}
// If publishing or unpublishung wasn't successful, decrease the
// counter of successfully published or unpublished categories
if($row->$column != $publish)
{
$count--;
}
}
return $count;
}
/**
* Deletes folders of an existing category
*
* @param string $catpath The catpath of the category
* @return boolean True on success, false otherwise
* @since 1.5.5
*/
protected function _deleteFolders($catpath)
{
if(!$catpath)
{
return false;
}
$orig_path = JPath::clean($this->_ambit->get('orig_path').$catpath);
$img_path = JPath::clean($this->_ambit->get('img_path').$catpath);
$thumb_path = JPath::clean($this->_ambit->get('thumb_path').$catpath);
// Delete the folder of the category for the original images
if(!JFolder::delete($orig_path))
{
// If not successfull
return false;
}
else
{
// Delete the folder of the category for the detail images
if(!JFolder::delete($img_path))
{
// If not successful
if(JFolder::create($orig_path))
{
JoomFile::copyIndexHtml($orig_path);
}
return false;
}
else
{
// Delete the folder of the category for the thumbnails
if(!JFolder::delete($thumb_path))
{
// If not successful
if(JFolder::create($orig_path))
{
JoomFile::copyIndexHtml($orig_path);
}
if(JFolder::create($img_path))
{
JoomFile::copyIndexHtml($img_path);
}
return false;
}
}
}
return true;
}
/**
* Method for retreiving categories allowed for a certain action
*
* @param string $action Optional action to check the categories against
* @param int $filter Optional category ID which will be filtered out together with its sub-categories
* @param string $searchstring Optional string for searching specific categories (name of category will be used for searching)
* @param int $limitstart Optional limit start parameter for database query
* @return array A result set with an array of categories and indicator whether there are more results left on success, Exception object otherwise
* @since 2.1
*/
public function getAllowedCategories($action = null, $filter = null, $searchstring = '', $limitstart = 0, $current = 0)
{
JHtml::addIncludePath(JPATH_COMPONENT.'/helpers/html');
// Initialise variables
$results = array('results' => array());
$action2 = false;
if($action == 'joom.upload')
{
$action2 = 'joom.upload.inown';
}
if($action == 'core.create')
{
$action2 = 'joom.create.inown';
}
if($action == 'core.edit')
{
$action2 = 'core.edit.own';
}
$filtered = array();
if($filter)
{
$filtered = JoomHelper::getAllSubCategories($filter, true, true, true, false);
}
try
{
// Create the search query
$query = $this->_db->getQuery(true)
->select('cid, name, owner')
->from($this->_db->qn(_JOOM_TABLE_CATEGORIES))
->where('cid != 1')
->order('lft');
if($searchstring)
{
$searchstring = $this->_db->q('%'.$searchstring.'%');
$query->where('name LIKE '.$searchstring);
}
// Load all results
$this->_db->setQuery($query);
$result = $this->_db->loadObjectList();
// Check the results starting from limit start
$count = count($result);
$j = 0;
if( !$limitstart
&& ($current == 0 || !$action || ($action == 'core.create' && $this->_user->authorise($action, _JOOM_OPTION)))
)
{
$none = new stdclass();
$none->cid = 0;
$none->name = JText::_('COM_JOOMGALLERY_COMMON_NO_CATEGORY');
$none->path = '';
$none->none = true;
$results['results'][$j] = $none;
$j++;
}
for($i = $limitstart; $i < $count; $i++)
{
if(in_array($result[$i]->cid, $filtered))
{
continue;
}
if( $result[$i]->cid != $current
&& $action && !$this->_user->authorise($action, _JOOM_OPTION.'.category.'.$result[$i]->cid)
&& ( !$action2
|| $result[$i]->owner != $this->_user->get('id')
|| !$this->_user->authorise($action2, _JOOM_OPTION.'.category.'.$result[$i]->cid)
)
)
{
continue;
}
// Stop as soon as we have 10 results.
// This check is done not earlier than at this point because
// we want to know whether there is at least one more result.
if($j == 10)
{
// If 'more' is set a 'More Results' link will be displayed in the view
$results['more'] = $i;
break;
}
$results['results'][$j] = $result[$i];
$results['results'][$j]->path = JHtml::_('joomgallery.categorypath', $result[$i]->cid, false, false, true);
$j++;
}
}
catch(JDatabaseException $e)
{
return $e;
}
return $results;
}
/**
* 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 $resetPage If true, the limitstart in request is set to zero if the state has changed
* @return The requested user state
* @since 2.0
*/
public function getUserStateFromRequest($key, $request, $default = null, $type = 'none', $resetPage = true)
{
$app = JFactory::getApplication();
$old_state = $app->getUserState($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)
{
$app->setUserState($key, $new_state);
}
else
{
$new_state = $cur_state;
}
return $new_state;
}
}