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<?php
// $HeadURL: https://joomgallery.org/svn/joomgallery/JG-2.0/JG/trunk/components/com_joomgallery/models/edit.php $
// $Id: edit.php 4218 2013-04-21 17:22:10Z 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');
/**
* JoomGallery Edit Image model
*
* @package JoomGallery
* @since 1.5.5
*/
class JoomGalleryModelEdit extends JoomGalleryModel
{
/**
* Image ID
*
* @var int
*/
protected $_id;
/**
* Image data object
*
* @var object
*/
protected $_image;
/**
* Constructor
*
* @return void
* @since 1.5.5
*/
public function __construct()
{
parent::__construct();
$array = JRequest::getVar('id', 0, '', 'array');
$this->setId((int)$array[0]);
}
/**
* Method to set the image identifier
*
* @param int $id The image ID
* @return void
* @since 1.5.5
*/
public function setId($id)
{
// Set new image ID if valid and wipe data
if(!$id)
{
$this->_mainframe->redirect(JRoute::_('index.php?view=userpanel', false), JText::_('COM_JOOMGALLERY_COMMON_NO_IMAGE_SPECIFIED'), 'notice');
}
$this->_id = $id;
$this->_image = null;
}
/**
* Method to get the image data
*
* @return object Image data object
* @since 1.5.5
*/
public function getImage()
{
if($this->_loadImage())
{
// Check whether we are allowed to edit the image
$asset = _JOOM_OPTION.'.image.'.$this->_id;
if(!$this->_user->authorise('core.edit', $asset) && (!$this->_user->authorise('core.edit.own', $asset) || $this->_image->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_IMAGE'), 'notice');
}
return $this->_image;
}
return false;
}
/**
* Method to check whether the image can have its state edited by the current user
*
* @param array Holds the data of the image
* @return boolean True if the current user is allowed to change the state of the image, false otherwise
* @since 2.0
*/
protected function canEditState($data)
{
// Check for existing image
if(isset($data['id']) && $data['id'])
{
return $this->_user->authorise('core.edit.state', _JOOM_OPTION.'.image.'.(int) $data['id']);
}
else
{
// Maybe it is a new image, so check against the category
if(isset($data['catid']) && $data['catid'])
{
return $this->_user->authorise('core.edit.state', _JOOM_OPTION.'.category.'.(int) $data['catid']);
}
else
{
// Default to component settings if neither image nor category known
return $this->_user->authorise('core.edit.state', _JOOM_OPTION);
}
}
}
/**
* Method to get the form for the image
*
* @param array Holds the data of the image (if available)
* @return mixed A JForm object on success, false on failure
* @since 2.0
*/
public function getForm($data = array())
{
JForm::addFormPath(JPATH_COMPONENT.'/models/forms');
JForm::addFieldPath(JPATH_COMPONENT_ADMINISTRATOR.'/models/fields');
JForm::addRulePath(JPATH_COMPONENT_ADMINISTRATOR.'/models/rules');
$form = JForm::getInstance(_JOOM_OPTION.'.edit', 'edit');
if(empty($form))
{
return false;
}
if(empty($data))
{
$data = (array) $this->getImage();
}
// Allow plugins to preprocess the form
JPluginHelper::importPlugin('joomgallery');
$this->preprocessForm($form, $data);
if(!$this->canEditState($data))
{
// Disable fields for display
$form->setFieldAttribute('published', 'disabled', 'true');
// Unset the data of fields which we aren't allowed to change
$form->setFieldAttribute('published', '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($error);
}
}
}
/**
* Method to load the image data
*
* @return boolean True on success, false otherwise
* @since 1.5.5
*/
protected function _loadImage()
{
if(empty($this->_image))
{
$row = $this->getTable('joomgalleryimages');
if(!$row->load($this->_id))
{
$row->imgtitle = $this->_mainframe->getUserStateFromRequest('joom.image.imgtitle', 'imgtitle');
$row->imgtext = $this->_mainframe->getUserStateFromRequest('joom.image.imgtext', 'imgtext');
$row->imgauthor = $this->_mainframe->getUserStateFromRequest('joom.image.imgauthor', 'imgauthor');
$row->owner = $this->_mainframe->getUserStateFromRequest('joom.image.owner', 'owner');
$row->published = $this->_mainframe->getUserStateFromRequest('joom.image.published', 'published', 1, 'int');
$row->imgfilename = $this->_mainframe->getUserStateFromRequest('joom.image.imgfilename', 'imgfilename');
$row->imgthumbname = $this->_mainframe->getUserStateFromRequest('joom.image.imgthumbname', 'imgthumbname');
$row->catid = $this->_mainframe->getUserStateFromRequest('joom.image.catid', 'catid', 0, 'int');
$row->thumb_url = null;
//Source category for original and detail picture
#$row->detail_catid = $this->_mainframe->getUserStateFromRequest('joom.image.detail_catid', 'detail_catid', 0, 'int');
//Source category for thumbnail
#$row->thumb_catid = $this->_mainframe->getUserStateFromRequest('joom.image.thumb_catid', 'thumb_catid', 0, 'int');
#$row->copy_original = $this->_mainframe->getUserStateFromRequest('joom.image.copy_original', 'copy_original', 0, 'int');
}
else
{
$row->thumb_url = $this->_ambit->getImg('thumb_url', $row);
}
JPluginHelper::importPlugin('joomgallery');
$this->_mainframe->triggerEvent('onContentPrepareData', array(_JOOM_OPTION.'.image', $row));
$this->_image = $row;
}
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 $data;
}
/**
* Method to store an edited image
*
* @return boolean True on success, false otherwise
* @since 1.5.5
*/
public function store($data = null)
{
$row = $this->getTable('joomgalleryimages');
if(is_null($data))
{
$data = JRequest::get('post', 2);
}
// Check for validation errors
$form = $this->getForm($data);
$data = $this->_validate($form, $data);
if($data === false)
{
return false;
}
// Check whether it is an existing image
if(!$id = intval($data['id']))
{
$this->_mainframe->redirect(JRoute::_('index.php?view=gallery', false), JText::_('COM_JOOMGALLERY_COMMON_NO_IMAGE_SPECIFIED'), 'error');
}
// Load image data from the database
$row->load($id);
// Check whether we are allowed to edit it
$asset = _JOOM_OPTION.'.image.'.$id;
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_IMAGE'), 'notice');
}
// Read old category ID
$catid_old = $row->catid;
// Bind the form fields to the images table
if(!$row->bind($data))
{
$this->setError($row->getError());
return false;
}
// Load category information for permission checks
$query = $this->_db->getQuery(true)
->select('cid, owner')
->from(_JOOM_TABLE_CATEGORIES)
->where('cid = '.$row->catid);
$this->_db->setQuery($query);
$category = $this->_db->loadObject();
$move = false;
if(isset($catid_old) && $catid_old != $row->catid)
{
$move = true;
// Check whether the new category is a valid one
if(!$category)
{
// If that's not the case store the image in the old category and leave a message
$move = false;
$row->catid = $catid_old;
$this->_mainframe->enqueueMessage(JText::_('COM_JOOMGALLERY_COMMON_MSG_NO_VALID_CATEGORY_SELECTED'), 'notice');
}
else
{
// Access check for the selected new category
if( !$this->_user->authorise('joom.upload', _JOOM_OPTION.'.category.'.$row->catid)
&&
( !$this->_user->authorise('joom.upload.inown', _JOOM_OPTION.'.category.'.$row->catid)
|| !$category->owner
|| $category->owner != $this->_user->get('id')
)
)
{
$move = false;
$row->catid = $catid_old;
$this->_mainframe->enqueueMessage(JText::_('COM_JOOMGALLERY_COMMON_MSG_NOT_ALLOWED_STORE_IMAGE_IN_CATEGORY'), 'notice');
}
}
}
if($move && !$this->moveImage($row, $row->catid, $catid_old))
{
$this->_mainframe->enqueueMessage(JText::_('COM_JOOMGALLERY_EDITIMAGE_MSG_COULD_NOT_MOVE_IMAGE'), 'notice');
return false;
}
else
{
// Make sure the record is valid
if(!$row->check())
{
$this->setError($row->getError());
return false;
}
// Store the entry to the database
if(!$row->store())
{
$this->setError($row->getError());
return false;
}
}
// Successfully stored image (and moved)
$row->reorder('catid = '.$row->catid);
if(isset($catid_old) && $catid_old != $row->catid)
{
$row->reorder('catid = '.$catid_old);
}
$this->_mainframe->triggerEvent('onContentAfterSave', array(_JOOM_OPTION.'.image', &$row, false));
return $row->id;
}
/**
* Method to delete an image
*
* @return boolean True on success, false otherwise
* @since 1.5.5
*/
public function delete()
{
jimport('joomla.filesystem.file');
$row = $this->getTable('joomgalleryimages');
$row->load($this->_id);
// Check whether we are allowed to delete this image
if(!$this->_user->authorise('core.delete', _JOOM_OPTION.'.image.'.$row->id))
{
$this->setError(JText::_('COM_JOOMGALLERY_IMAGE_MSG_DELETE_NOT_PERMITTED'));
return false;
}
// Database query to check if there are other images which this
// thumbnail is assigned to and how many of them exist
$query = $this->_db->getQuery(true);
$query->select('COUNT(id)')
->from(_JOOM_TABLE_IMAGES)
->where('imgthumbname = \''.$row->imgthumbname.'\'')
->where('id != '.$row->id)
->where('catid = '.$row->catid);
$this->_db->setQuery($query);
$thumb_count = $this->_db->loadResult();
// Database query to check if there are other images which this
// detail image is assigned to and how many of them exist
$query->clear('where');
$query->where('imgfilename = \''.$row->imgfilename.'\'')
->where('id != '.$row->id)
->where('catid = '.$row->catid);
$this->_db->setQuery($query);
$img_count = $this->_db->loadResult();
// Delete the thumbnail if there are no other images
// in same category assigned to it
if(!$thumb_count)
{
$thumb = $this->_ambit->getImg('thumb_path', $row);
if(!JFile::delete($thumb))
{
// If thumbnail is not deleteable set an error message and abort
$this->setError(JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_COULD_NOT_DELETE_THUMB', $thumb));
return false;
}
}
// Delete the detail if there are no other detail and
// original images from same category assigned to it
if(!$img_count)
{
$img = $this->_ambit->getImg('img_path', $row);
if(!JFile::delete($img))
{
// If detail is not deleteable set an error message and abort
$this->setError(JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_COULD_NOT_DELETE_IMAGE', $img));
return false;
}
// Original exists?
$orig = $this->_ambit->getImg('orig_path', $row);
if(JFile::exists($orig))
{
// Delete it
if(!JFile::delete($orig))
{
// If original is not deleteable set an error message and abort
$this->setError(JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_COULD_NOT_DELETE_ORIG', $orig));
return false;
}
}
}
// Delete the corresponding database entries of the comments
$query->clear();
$query->delete(_JOOM_TABLE_COMMENTS)
->where('cmtpic = '.$this->_id);
$this->_db->setQuery($query);
if(!$this->_db->query())
{
JError::raiseWarning(100, JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_COULD_NOT_DELETE_COMMENTS', $this->_id));
}
// Delete the corresponding database entries of the name tags
$query->clear();
$query->delete(_JOOM_TABLE_NAMESHIELDS)
->where('npicid = '.$this->_id);
$this->_db->setQuery($query);
if(!$this->_db->query())
{
JError::raiseWarning(100, JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_COULD_NOT_DELETE_NAMETAGS', $this->_id));
}
// Delete the database entry of the image
if(!$row->delete())
{
$this->setError(JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_COULD_NOT_DELETE_IMAGE_DATA', $this->_id));
return false;
}
// Image successfully deleted
$row->reorder('catid = '.$row->catid);
JPluginHelper::importPlugin('joomgallery');
$this->_mainframe->triggerEvent('onContentAfterDelete', array(_JOOM_OPTION.'.image', $row));
return true;
}
/**
* Moves image into another category
* (The given image data is only stored in the database if old and new category are different from each other)
*
* @param object $item Holds the data of the image to move, if it's not an object we will try to retrieve the data from the database
* @param int $catid_new The ID of the category to which the image should be moved
* @param int $catid_old The ID of the old category of the image
* @return boolean True on success, false otherwise
* @since 1.5.5
*/
public function moveImage(&$item, $catid_new, $catid_old = 0)
{
jimport('joomla.filesystem.file');
// If we just have the image ID
if(!is_object($item))
{
$id = intval($item);
$item = $this->getTable('joomgalleryimages');
$item->load($id);
$catid_old = $item->catid;
}
// If the image is already in the correct category return true
if($catid_new == $catid_old)
{
return true;
}
$catpath_old = JoomHelper::getCatPath($catid_old);
$catpath_new = JoomHelper::getCatPath($catid_new);
// Database query to check if there are other images which this
// thumbnail is assigned to and how many of them exist
$query = $this->_db->getQuery(true);
$query->select('COUNT(id)')
->from(_JOOM_TABLE_IMAGES)
->where('imgthumbname = \''.$item->imgthumbname.'\'')
->where('id != '.$item->id)
->where('catid = '.$catid_old);
$this->_db->setQuery($query);
$thumb_count = $this->_db->loadResult();
// Check if thumbnail already exists in source directory and
// if it doesn't already exist in destination directory.
// If that's the case the file will not be copied.
$thumb_created = false;
$thumb_source = $this->_ambit->get('thumb_path').$catpath_old.$item->imgthumbname;
$thumb_dest = $this->_ambit->get('thumb_path').$catpath_new.$item->imgthumbname;
if(JFile::exists($thumb_dest))
{
JError::raiseNotice(0, JText::_('COM_JOOMGALLERY_EDITIMAGE_MSG_DEST_THUMB_ALREADY_EXISTS'));
if($thumb_count && JFile::exists($thumb_source))
{
JFile::delete($thumb_source);
}
}
else
{
if(!JFile::exists($thumb_source))
{
JError::raiseWarning(500, JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_SOURCE_THUMB_NOT_EXISTS', $thumb_source));
return false;
}
else
{
// If there is no image remaining in source directory
// which uses the file
if(!$thumb_count)
{
// Move the thumbnail
$result = JFile::move($thumb_source, $thumb_dest);
}
else
{
// Otherwise just copy the thumbnail in order that it remains in the source directory
$result = JFile::copy($thumb_source, $thumb_dest);
}
// If not succesful raise an error message and abort
if(!$result)
{
JError::raiseWarning(100, JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_COULD_NOT_MOVE_THUMB', JPath::clean($thumb_dest)));
return false;
}
// Set control variable according to the successful move/copy procedure
$thumb_created = true;
}
}
// Database query to check if there are other images which this
// file is assigned to and how many of them exist
$query->clear('where');
$query->where('imgfilename = \''.$item->imgfilename.'\'')
->where('id != '.$item->id)
->where('catid = '.$catid_old);
$this->_db->setQuery($query);
$img_count = $this->_db->loadResult();
// Same procedure with the detail image
// In case of error roll previous copy/move procedure back
$img_created = false;
$img_source = $this->_ambit->get('img_path').$catpath_old.$item->imgfilename;
$img_dest = $this->_ambit->get('img_path').$catpath_new.$item->imgfilename;
if(JFile::exists($img_dest))
{
JError::raiseNotice(0, JText::_('COM_JOOMGALLERY_EDITIMAGE_MSG_DEST_IMG_ALREADY_EXISTS'));
if($img_count && JFile::exists($img_source))
{
JFile::delete($img_source);
}
}
else
{
if(!JFile::exists($img_source))
{
JError::raiseWarning(500, JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_SOURCE_IMG_NOT_EXISTS', $img_source));
return false;
}
else
{
if(!$img_count)
{
$result = JFile::move($img_source, $img_dest);
}
else
{
$result = JFile::copy($img_source, $img_dest);
}
if(!$result)
{
if($thumb_created)
{
if(!$thumb_count)
{
JFile::move($thumb_dest, $thumb_source);
}
else
{
JFile::delete($thumb_dest);
}
}
JError::raiseWarning(100, JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_COULD_NOT_MOVE_IMG', JPath::clean($img_dest)));
return false;
}
// Set control variable according to the successful move/copy procedure
$img_created = true;
}
}
// Go on with original image
$orig_source = $this->_ambit->get('orig_path').$catpath_old.$item->imgfilename;
$orig_dest = $this->_ambit->get('orig_path').$catpath_new.$item->imgfilename;
if(JFile::exists($orig_dest))
{
JError::raiseNotice(0, JText::_('COM_JOOMGALLERY_EDITIMAGE_MSG_DEST_ORIG_ALREADY_EXISTS'));
if($img_count && JFile::exists($orig_source))
{
JFile::delete($orig_source);
}
}
else
{
if(JFile::exists($orig_source))
{
if(!$img_count)
{
$result = JFile::move($orig_source, $orig_dest);
}
else
{
$result = JFile::copy($orig_source, $orig_dest);
}
if(!$result)
{
if($thumb_created)
{
if(!$thumb_count)
{
JFile::move($thumb_dest, $thumb_source);
}
else
{
JFile::delete($thumb_dest);
}
}
if($img_created)
{
if(!$img_count)
{
JFile::move($img_dest, $img_source);
}
else
{
JFile::delete($img_dest);
}
}
JError::raiseWarning(100, JText::sprintf('COM_JOOMGALLERY_EDITIMAGE_MSG_COULD_NOT_MOVE_ORIG', JPath::clean($orig_dest)));
return false;
}
}
}
// If all folder operations for the image were successful
// modify the database entry
$item->catid = $catid_new;
$item->ordering = $item->getNextOrder('catid = '.$catid_new);
// Make sure the record is valid
if(!$item->check())
{
JError::raiseWarning($item->getError());
return false;
}
// Store the entry to the database
if(!$item->store())
{
JError::raiseWarning($item->getError());
return false;
}
return true;
}
/**
* Method to publish resp. unpublish an image
*
* @return boolean True on success, false otherwise
* @since 1.5.7
*/
public function publish()
{
$row = $this->getTable('joomgalleryimages');
$row->load($this->_id);
// Check whether we are allowed to edit the state of this image
if(!$this->_user->authorise('core.edit.state', _JOOM_OPTION.'.image.'.$row->id))
{
$this->setError(JText::_('COM_JOOMGALLERY_IMAGE_MSG_EDITSTATE_NOT_PERMITTED'));
return false;
}
// Remember old state for check at the end whether the change was successful
$published = $row->published;
$row->published = 1 - $row->published;
if(!$row->check())
{
$this->setError($row->getError());
return false;
}
if(!$row->store())
{
$this->setError($row->getError());
}
// If publishing or unpublishung wasn't successful, return false
if($row->published == $published)
{
return false;
}
return true;
}
}