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<?php
// $HeadURL: https://joomgallery.org/svn/joomgallery/JG-2.0/JG/trunk/administrator/components/com_joomgallery/models/category.php $
// $Id: category.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.');
jimport('joomla.form.form');
/**
* Category model
*
* @package JoomGallery
* @since 1.5.5
*/
class JoomGalleryModelCategory extends JoomGalleryModel
{
/**
* Constructor
*
* @return void
* @since 1.5.5
*/
public function __construct()
{
parent::__construct();
$array = JRequest::getVar('cid', 0, '', 'array');
$this->setId((int)$array[0]);
}
/**
* Method to set the category identifier
*
* @param int $id The Category ID
* @return void
* @since 1.5.5
*/
public function setId($id)
{
// Set id and wipe data
$this->_id = $id;
$this->_data = null;
}
/**
* Method to get the data of the current category
*
* @return object An object with the category data
* @since 1.5.5
*/
public function getData()
{
if(empty($this->_data))
{
$row = $this->getTable('joomgallerycategories');
$row->load($this->_id);
$this->_data = $row;
$this->_data->thumbnail_available = false;
if($this->_data->thumbnail)
{
$query = $this->_db->getQuery(true)
->select('id')
->from(_JOOM_TABLE_IMAGES)
->where('id = '.$this->_data->thumbnail)
->where('published = 1')
->where('approved = 1');
$this->_db->setQuery($query);
if($this->_db->loadResult())
{
$this->_data->thumbnail_available = true;
}
}
}
$this->_mainframe->triggerEvent('onContentPrepareData', array(_JOOM_OPTION.'.category', $this->_data));
return $this->_data;
}
/**
* Method to check whether the category can have its state edited by the current user
*
* @param array Holds the data of the category
* @return boolean True if the current user is allowed to change the state of the category, false otherwise
* @since 2.0
*/
protected function canEditState($data)
{
// Check for existing category
if(isset($data['cid']) && $data['cid'])
{
return $this->_user->authorise('core.edit.state', _JOOM_OPTION.'.category.'.(int) $data['cid']);
}
else
{
// Maybe it is a new category, so check against the parent category
if(isset($data['parent_id']) && $data['parent_id'])
{
return $this->_user->authorise('core.edit.state', _JOOM_OPTION.'.category.'.(int) $data['parent_id']);
}
else
{
// Default to component settings if neither category nor parent category known
return $this->_user->authorise('core.edit.state', _JOOM_OPTION);
}
}
}
/**
* Method to get the form for the category
*
* @param array Holds the data of the category (if available)
* @return mixed A JForm object on success, false on failure
* @since 2.0
*/
public function getForm($data = array())
{
JForm::addFormPath(JPATH_COMPONENT.'/models/forms');
JForm::addFieldPath(JPATH_COMPONENT.'/models/fields');
$form = JForm::getInstance(_JOOM_OPTION.'.category', 'category');
if(empty($form))
{
return false;
}
// Allow plugins to preprocess the form
$this->preprocessForm($form, $data);
if(!$this->canEditState($data))
{
// Disable fields for display
$form->setFieldAttribute('ordering', 'disabled', 'true');
$form->setFieldAttribute('published', 'disabled', 'true');
$form->setFieldAttribute('hidden', 'disabled', 'true');
// Unset the data of fields which we aren't allowed to change
$form->setFieldAttribute('ordering', 'filter', 'unset');
$form->setFieldAttribute('published', 'filter', 'unset');
$form->setFieldAttribute('hidden', 'filter', 'unset');
}
return $form;
}
/**
* Method to allow plugins to preprocess the form
*
* @param JForm $form A JForm object.
* @param mixed $data The data expected for the form.
* @param string $group The name of the plugin group to import (defaults to "content").
* @return void
* @since 2.1
*/
protected function preprocessForm(JForm $form, $data, $group = 'content')
{
// Import the appropriate plugin group
JPluginHelper::importPlugin($group);
// Get the dispatcher
$dispatcher = JDispatcher::getInstance();
// Trigger the form preparation event
$results = $dispatcher->trigger('onContentPrepareForm', array($form, $data));
// Check for errors encountered while preparing the form
if(count($results) && in_array(false, $results, true))
{
// Get the last error
$error = $dispatcher->getError();
if(!($error instanceof Exception))
{
throw new Exception($error);
}
}
}
/**
* Method to store a category
*
* @return int The ID of the category, boolean false if an error occured
* @since 1.5.5
*/
public function store()
{
$row = $this->getTable('joomgallerycategories');
// Get all necessary data from the post
$data = JRequest::get('post', 4);
$params = isset($data['params']) ? $data['params'] : array();
// Creating a main category means creating
// a category in ROOT category
if($data['parent_id'] == 0)
{
$data['parent_id'] = 1;
}
// Check for validation errors
$form = $this->getForm($data);
$data = $this->_validate($form, $data);
if($data === false)
{
return false;
}
// Check whether it is an existing category
if($cid = intval($data['cid']))
{
$isNew = false;
// Load category from the database
$row->load($cid);
// Check whether we are allowed to edit it
$asset = _JOOM_OPTION.'.category.'.$cid;
if(!$this->_user->authorise('core.edit', $asset) && (!$this->_user->authorise('core.edit.own', $asset) || !$row->owner || $row->owner != $this->_user->get('id')))
{
$this->_mainframe->redirect(JRoute::_('index.php?option=com_joomgallery&view=gallery', false), JText::_('COM_JOOMGALLERY_COMMON_MSG_NOT_ALLOWED_TO_EDIT_CATEGORY'), 'notice');
}
// Read old category name
$catname_old = $row->name;
// Read old parent assignment
$parent_old = $row->parent_id;
}
else
{
$isNew = true;
// Alter the name and the alias //for save as copy
//if(JRequest::getCmd('task') == 'save2copy')
//{
list($title, $alias) = $this->generateNewTitle($data['parent_id'], $data['alias'], $data['name']);
$data['name'] = $title;
$data['alias'] = $alias;
//}
}
// Bind the form fields to the category table
if(!$row->bind($data))
{
JError::raiseError(0, $row->getError());
return false;
}
// Additional parameters, if set
if(count($params))
{
// Build parameter INI string
$txt = array();
foreach($params as $k => $v)
{
$txt[] = $k.'='.$v;
}
$row->params = implode("\n", $txt);
}
// Bind the rules
if(isset($data['rules']))
{
$rules = new JRules($data['rules']);
$row->setRules($rules);
}
// If it's a new category or the category will be moved
// do an access check for the selected parent category
$valid_parent = true;
$row->parent_id = intval($row->parent_id);
if($isNew || $parent_old != $row->parent_id)
{
if($row->parent_id > 1)
{
// Get data of the parent category
$query = $this->_db->getQuery(true)
->select('cid, owner')
->from(_JOOM_TABLE_CATEGORIES)
->where('cid = '.$row->parent_id);
$this->_db->setQuery($query);
$parent_category = $this->_db->loadObject();
if( !$parent_category
|| ( !$this->_user->authorise('core.create', _JOOM_OPTION.'.category.'.$row->parent_id)
&& ( !$this->_user->authorise('joom.create.inown', _JOOM_OPTION.'.category.'.$row->parent_id)
|| !$parent_category->owner
|| $parent_category->owner != $this->_user->get('id')
)
)
)
{
$valid_parent = false;
}
}
else
{
if(!$this->_user->authorise('core.create', _JOOM_OPTION))
{
$valid_parent = false;
}
}
}
if($isNew)
{
// Check whether the user is allowed to store the category into the specified parent category or as a main category
if(!$valid_parent)
{
$this->setError(JText::_('COM_JOOMGALLERY_CATMAN_MSG_NOT_ALLOWED_STORE_CATEGORY_IN_PARENT'));
return false;
}
// Determine location in category tree
if(!isset($data['ordering']) || !$data['ordering'] || $data['ordering'] == 'first-child')
{
$row->setLocation($data['parent_id'], 'first-child');
}
else
{
if($data['ordering'] == 'last-child')
{
$row->setLocation($data['parent_id'], 'last-child');
}
else
{
$row->setLocation($data['ordering'], 'after');
}
}
// Make sure the record is valid
if(!$row->check())
{
$this->setError($row->getError());
return false;
}
JFilterOutput::objectHTMLSafe($row->name);
// Check if special characters of catname can be replaced for a valid catpath
// if resulting string is invalid set an error
$catpath = JoomFile::fixFilename($row->name);
if(JoomFile::checkValidFilename($row->name, $catpath) == false)
{
$this->setError(JText::_('COM_JOOMGALLERY_CATMAN_MSG_ERROR_INVALID_FOLDERNAME'));
return false;
}
// Store the entry to the database in order to get the new ID
if(!$row->store())
{
JError::raiseError(0, $row->getError());
return false;
}
if($row->parent_id > 1)
{
$parent_catpath = JoomHelper::getCatPath($row->parent_id);
$catpath = $parent_catpath . $catpath;
}
// Add the category id to catpath
$catpath .= '_'.$row->cid;
if(!$this->_createFolders($catpath))
{
$this->setError(JText::_('COM_JOOMGALLERY_CATMAN_MSG_ERROR_CREATING_FOLDERS'));
// Delete the just stored database entry
$row->delete();
return false;
}
else
{
$row->catpath = $catpath;
// Make sure the record is valid
if(!$row->check())
{
$this->setError($row->getError());
return false;
}
// Store the entry to the database
if(!$row->store())
{
JError::raiseError(0, $row->getError());
return false;
}
}
$this->_mainframe->triggerEvent('onContentAfterSave', array(_JOOM_OPTION.'.category', &$row, true));
// New category successfully created
return $row->cid;
}
// Move the category folder, if parent assignment or category name changed
if($parent_old != $row->parent_id || $catname_old != $row->name)
{
// Check whether the user is allowed to move the category into the specified parent category
if(!$valid_parent)
{
// If not store the category in the old parent category and leave a message.
$row->parent_id = $parent_old;
/*if(!$row->store())
{
JError::raiseError(100, $row->getError());
return false;
}*/
$this->_mainframe->enqueueMessage(JText::_('COM_JOOMGALLERY_COMMON_MSG_NOT_ALLOWED_STORE_IMAGE_IN_CATEGORY'), 'notice');
}
else
{
if($parent_old != $row->parent_id)
{
if(isset($data['ordering']) && $data['ordering'] != $data['cid'])
{
// Determine location in category tree
if(!$data['ordering'] || $data['ordering'] == 'first-child')
{
$row->setLocation($data['parent_id'], 'first-child');
}
else
{
if($data['ordering'] == 'last-child')
{
$row->setLocation($data['parent_id'], 'last-child');
}
else
{
$row->setLocation($data['ordering'], 'after');
}
}
}
else
{
$row->setLocation($data['parent_id'], 'first-child');
}
}
}
// Save old path
$catpath_old = $row->catpath;
JFilterOutput::objectHTMLSafe($row->name);
// Check if special characters of catname can be replaced for a valid catpath
// if resulting string is invalid set an error
$catpath = JoomFile::fixFilename($row->name);
if(JoomFile::checkValidFilename($catpath_old, $catpath) == false)
{
$this->setError(JText::_('COM_JOOMGALLERY_CATMAN_MSG_ERROR_INVALID_FOLDERNAME'));
return false;
}
// Add the category id to catpath
$catpath .= '_' . $row->cid;
if($row->parent_id > 1)
{
$parent_catpath = JoomHelper::getCatPath($row->parent_id);
$catpath = $parent_catpath . $catpath;
}
// Move folders, only if the catpath has changed
if($catpath_old != $catpath && !$this->_moveFolders($catpath_old, $catpath))
{
$this->setError(JText::_('COM_JOOMGALLERY_CATMAN_MSG_ERROR_MOVING_FOLDERS'));
return false;
}
// Update catpath in the database
$row->catpath = $catpath;
// Modify catpath of all sub-categories in the database
$this->updateNewCatpath($row->cid, $catpath_old, $catpath);
}
else
{
// Check whether ordering has changed
if(isset($data['ordering']) && $data['ordering'] != $row->cid)
{
// Determine location in category tree
if($data['ordering'] == 'first-child' || $data['ordering'] == 'last-child')
{
$row->setLocation($data['parent_id'], $data['ordering']);
}
else
{
// Check whether the new reference category is a
// valid child category of the current parent category
$this->_db->setQuery($this->_db->getQuery(true)
->select('cid')
->from(_JOOM_TABLE_CATEGORIES)
->where('parent_id = '.$row->parent_id)
->where('cid = '.$data['ordering']));
if($this->_db->loadResult())
{
$row->setLocation($data['ordering'], 'after');
}
}
}
}
// Make sure the record is valid
if(!$row->check())
{
$this->setError($row->getError());
return false;
}
// Store the entry to the database
if(!$row->store())
{
JError::raiseError(0, $row->getError());
return false;
}
$this->_mainframe->triggerEvent('onContentAfterSave', array(_JOOM_OPTION.'.category', &$row, true));
return $row->cid;
}
/**
* Retrieves the data for creating the orderings drop down list
*
* @param int $parent Parent category which has to be included into the list independent of it's access state
* @return array An array of JHTML select options with the ordering numbers
* and the category names
* @since 1.5.5
*/
public function getOrderings($parent = null)
{
if(empty($this->_orderings))
{
$categories = JoomHelper::getAuthorisedCategories('core.create');
$allowed_categories = '';
// If the user is allowed to create main categories add '1' as an allowed parent category
if($this->_user->authorise('core.create', _JOOM_OPTION))
{
$allowed_categories .= '1,';
}
foreach($categories as $category)
{
$allowed_categories .= $category->cid.',';
}
if(!is_null($parent))
{
$allowed_categories .= $parent;
}
else
{
$allowed_categories = trim($allowed_categories, ',');
}
if(!$allowed_categories)
{
return array();
}
$query = $this->_db->getQuery(true);
$query->select('cid')
->select('parent_id')
->select('name')
->from(_JOOM_TABLE_CATEGORIES)
->where('parent_id IN ('.$allowed_categories.')')
->where('lft > 0')
->order('lft');
$this->_db->setQuery($query);
if(!$this->_orderings = $this->_db->loadObjectList())
{
$this->setError($this->_db->getError());
return array();
}
}
return $this->_orderings;
}
/**
* Update of category path in the database for sub-categories
* if a parent category has been moved or the name has changed.
*
* Recursive call to each level of depth.
*
* @param string $catids_values ID(s) of the categories to update (comma separated)
* @param string $oldpath Former relative category path
* @param string $newpath New relative category path
* @return void
* @since 1.0.0
*/
public function updateNewCatpath($catids_values, &$oldpath, &$newpath)
{
// Query for sub-categories with parent in $catids_values
$this->_db->setQuery("SELECT
cid
FROM
"._JOOM_TABLE_CATEGORIES."
WHERE
parent_id IN ($catids_values)
");
$subcatids = $this->_db->loadResultArray();
if($this->_db->getErrorNum())
{
JError::raiseWarning(500, $this->_db->getErrorMsg());
}
// Nothing found, return
if(!count($subcatids))
{
return;
}
$row = JTable::getInstance('joomgallerycategories', 'Table');
foreach($subcatids as $subcatid)
{
$row->load($subcatid);
$catpath = $row->catpath;
// Replace former category path with new one
$catpath = str_replace($oldpath.'/', $newpath.'/', $catpath);
// Then save it
$row->catpath = $catpath;
if(!$row->store())
{
JError::raiseError(500, $row->getError());
}
}
// Split the array in comma separated string
$catids_values = implode (',', $subcatids);
// Call again with sub-categories as parent
$this->updateNewCatpath($catids_values, $oldpath, $newpath);
}
/**
* Creates the folders for a category
*
* @param string The category path for the category
* @return boolean True on success, false otherwise
* @since 1.5.5
*/
protected function _createFolders($catpath)
{
$catpath = JPath::clean($catpath);
// Create the folder of the category for the original images
if(!JFolder::create($this->_ambit->get('orig_path').$catpath))
{
// If not successfull
return false;
}
else
{
// Copy an index.html file into the new folder
JoomFile::copyIndexHtml($this->_ambit->get('orig_path').$catpath);
// Create the folder of the category for the detail images
if(!JFolder::create($this->_ambit->get('img_path').$catpath))
{
// If not successful
JFolder::delete($this->_ambit->get('orig_path').$catpath);
return false;
}
else
{
// Copy an index.html file into the new folder
JoomFile::copyIndexHtml($this->_ambit->get('img_path').$catpath);
// Create the folder of the category for the thumbnails
if(!JFolder::create($this->_ambit->get('thumb_path').$catpath))
{
// If not successful
JFolder::delete($this->_ambit->get('orig_path').$catpath);
JFolder::delete($this->_ambit->get('img_path').$catpath);
return false;
}
else
{
// Copy an index.html file into the new folder
JoomFile::copyIndexHtml($this->_ambit->get('thumb_path').$catpath);
}
}
}
return true;
}
/**
* Moves folders of an existing category
*
* @param string $src The source category path
* @param string $dest The destination category path
* @return boolean True on success, false otherwise
* @since 1.5.5
*/
protected function _moveFolders($src, $dest)
{
$orig_src = JPath::clean($this->_ambit->get('orig_path').$src);
$orig_dest = JPath::clean($this->_ambit->get('orig_path').$dest);
$img_src = JPath::clean($this->_ambit->get('img_path').$src);
$img_dest = JPath::clean($this->_ambit->get('img_path').$dest);
$thumb_src = JPath::clean($this->_ambit->get('thumb_path').$src);
$thumb_dest = JPath::clean($this->_ambit->get('thumb_path').$dest);
// Move the folder of the category for the original images
$return = JFolder::move($orig_src, $orig_dest);
if($return !== true)
{
// If not successfull
JError::raiseWarning(100, $return);
return false;
}
else
{
// Move the folder of the category for the detail images
$return = JFolder::move($img_src, $img_dest);
if($return !== true)
{
// If not successful
JFolder::move($orig_dest, $orig_src);
JError::raiseWarning(100, $return);
return false;
}
else
{
// Move the folder of the category for the thumbnails
$return = JFolder::move($thumb_src, $thumb_dest);
if($return !== true)
{
// If not successful
JFolder::move($orig_dest, $orig_src);
JFolder::move($img_dest, $img_src);
JError::raiseWarning(100, $return);
return false;
}
}
}
return true;
}
/**
* Method to validate the form data
*
* @param object $form The form to validate against
* @param array $data The data to validate
* @return mixed Array of filtered data if valid, false otherwise
* @since 2.0
*/
protected function _validate($form, $data)
{
// Filter and validate the form data
$data = $form->filter($data);
$return = $form->validate($data);
// Check for an error
if(JError::isError($return))
{
$this->setError($return->getMessage());
return false;
}
// Check the validation results
if ($return === false)
{
// Get the validation messages from the form
foreach($form->getErrors() as $message)
{
$this->setError(JText::_($message));
}
return false;
}
return $data;
}
/**
* Method to change the name and the alias if there exist already the same
*
* @param int The parent category ID
* @param string The alias of the category
* @param string The name of the category
* @return array Holds the new name and alias
* @since 2.0
*/
function generateNewTitle(&$parent_id, &$alias, &$title)
{
// Alter the name and the alias
$table = $this->getTable('joomgallerycategories');
while($table->load(array('alias' => $alias, 'parent_id' => $parent_id)))
{
$m = null;
if(preg_match('#-(\d+)$#', $alias, $m))
{
$alias = preg_replace('#-(\d+)$#', '-'.($m[1] + 1).'', $alias);
}
else
{
$alias .= '-2';
}
if(preg_match('#\((\d+)\)$#', $title, $m))
{
$title = preg_replace('#\(\d+\)$#', '('.($m[1] + 1).')', $title);
}
else
{
$title .= ' (2)';
}
}
return array($title, $alias);
}
}