class.ilObjFolder.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

require_once "./Services/Container/classes/class.ilContainer.php";

class ilObjFolder extends ilContainer
{
        var $folder_tree;
        
        function ilObjFolder($a_id = 0,$a_call_by_reference = true)
        {
                $this->type = "fold";
                parent::__construct($a_id,$a_call_by_reference);
                $this->lng->loadLanguageModule('fold');
        }

        function setFolderTree($a_tree)
        {
                $this->folder_tree =& $a_tree;
        }
        
        public function cloneObject($a_target_id,$a_copy_id = 0)
        {
                $new_obj = parent::cloneObject($a_target_id,$a_copy_id);
                
                // Copy learning progress settings
                include_once('Services/Tracking/classes/class.ilLPObjSettings.php');
                $obj_settings = new ilLPObjSettings($this->getId());
                $obj_settings->cloneSettings($new_obj->getId());
                unset($obj_settings);
                
                return $new_obj;
        }

        function putInTree($a_parent)
        {
                global $tree;
                
                if (!is_object($this->folder_tree))
                {
                        $this->folder_tree =& $tree; 
                }

                if ($this->withReferences())
                {
                        // put reference id into tree
                        $this->folder_tree->insertNode($this->getRefId(), $a_parent);
                }
                else
                {
                        // put object id into tree
                        $this->folder_tree->insertNode($this->getId(), $a_parent);
                }
        }
        
        public function cloneDependencies($a_target_id,$a_copy_id)
        {               
                parent::cloneDependencies($a_target_id,$a_copy_id);

                include_once('Services/Object/classes/class.ilObjectActivation.php');
                ilObjectActivation::cloneDependencies($this->getRefId(), $a_target_id, $a_copy_id);
                
                include_once('Services/Tracking/classes/class.ilLPCollections.php');
                $lp_collection = new ilLPCollections($this->getId());
                $lp_collection->cloneCollections($a_target_id,$a_copy_id);              
                
                return true;
        }
        
        private static function recurseFolder ($refid, $title, $tmpdir) {
                global $rbacsystem, $tree, $ilAccess;
                                
                $tmpdir = $tmpdir.DIRECTORY_SEPARATOR.ilUtil::getASCIIFilename($title);
                ilUtil::makeDir($tmpdir);
                
                $subtree = $tree->getChildsByTypeFilter($refid, array("fold","file"));
                
                foreach ($subtree as $child) 
                {
                        if (!$ilAccess->checkAccess("read", "", $child["ref_id"]))
                        {
                                continue;                       
                        }
                        if (ilObject::_isInTrash($child["ref_id"]))
                        {
                                continue;
                        }
                        if ($child["type"] == "fold")
                        {
                                ilObjFolder::recurseFolder ($child["ref_id"], $child["title"], $tmpdir);
                        } else {
                                $newFilename = $tmpdir.DIRECTORY_SEPARATOR.ilUtil::getASCIIFilename($child["title"]);
                                // copy to temporal directory
                                $oldFilename = ilObjFile::_lookupAbsolutePath($child["obj_id"]);
                                if (!copy ($oldFilename, $newFilename))
                                {
                                        throw new ilFileException("Could not copy ".$oldFilename." to ".$newFilename);
                                }       
                                touch($newFilename, filectime($oldFilename));                                                           
                        }
                }
                
        }
        
        public function downloadFolder() {
                global $lng, $rbacsystem, $ilAccess;
                include_once "./Services/Utilities/classes/class.ilUtil.php";
                include_once 'Modules/File/classes/class.ilObjFile.php';
                include_once 'Modules/File/classes/class.ilFileException.php';
                if (!$ilAccess->checkAccess("read", "", $this->getRefId()))
                {
                        $this->ilErr->raiseError(get_class($this)."::downloadFolder(): missing read permission!",$this->ilErr->WARNING);
                }
                if (ilObject::_isInTrash($this->getRefId()))
                {
                        $this->ilErr->raiseError(get_class($this)."::downloadFolder(): object is trashed!",$this->ilErr->WARNING);
                }
                
                $zip = PATH_TO_ZIP;
                $tmpdir = ilUtil::ilTempnam();          
                ilUtil::makeDir($tmpdir);
                $basename = ilUtil::getAsciiFilename($this->getTitle());
                $deliverFilename = $basename.".zip";
                $zipbasedir = $tmpdir.DIRECTORY_SEPARATOR.$basename;
                $tmpzipfile = $tmpdir.DIRECTORY_SEPARATOR.$deliverFilename;
                
                try {
                        ilObjFolder::recurseFolder ($this->getRefId(), $this->getTitle(), $tmpdir);
                        ilUtil::zip($zipbasedir, $tmpzipfile);
                        rename($tmpzipfile,$zipfile = ilUtil::ilTempnam());
                        ilUtil::delDir($tmpdir);
                        ilUtil::deliverFile($zipfile,$deliverFilename,'',false,true);
                } catch (ilFileException $e) {
                        ilUtil::sendInfo($e->getMessage(), true);
                }
        }
        
        function getViewMode()
        {
                global $tree;
                
                // default: by type
                $view = ilContainer::VIEW_BY_TYPE;

                // always inherit from 
                $container_ref_id = $tree->checkForParentType($this->ref_id, 'grp');
                if(!$container_ref_id)
                {
                        $container_ref_id = $tree->checkForParentType($this->ref_id, 'crs');
                }
                if($container_ref_id)
                {
                        include_once("./Modules/Course/classes/class.ilObjCourseAccess.php");
                        $view_mode = ilObjCourseAccess::_lookupViewMode(ilObject::_lookupObjId($container_ref_id));
                        if ($view_mode == ilContainer::VIEW_SESSIONS ||
                                $view_mode == ilContainer::VIEW_BY_TYPE ||
                                $view_mode == ilContainer::VIEW_SIMPLE)
                        {
                                $view = $view_mode;
                        }
                }
                
                return $view;
        }

        function addAdditionalSubItemInformation(&$a_item_data)
        {               
                include_once './Services/Object/classes/class.ilObjectActivation.php';
                ilObjectActivation::addAdditionalSubItemInformation($a_item_data);
        }
        
        public function read()
        {
                global $tree;
                
                parent::read();
                
                // Inherit order type from parent course (if exists)
                include_once('./Services/Container/classes/class.ilContainerSortingSettings.php');
                $this->setOrderType(ilContainerSortingSettings::_lookupSortMode($this->getId()));
        }

} // END class.ilObjFolder
?>