class.ilObjLinkResource.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2005 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. |
        +-----------------------------------------------------------------------------+
*/

include_once "./Services/Object/classes/class.ilObject.php";

class ilObjLinkResource extends ilObject
{
        function ilObjLinkResource($a_id = 0,$a_call_by_reference = true)
        {
                //$this->type = "lnkr";
                $this->type = "webr";
                parent::__construct($a_id,$a_call_by_reference);
        }

        function create($a_upload = false)
        {
                $new_id = parent::create();
                
                if(!$a_upload)
                {
                        $this->createMetaData();
                }
                
                return $new_id;
        }

        function update()
        {
                $this->updateMetaData();
                parent::update();
        }
        
        public function MDUpdateListener($a_element)
        {
                global $ilLog;
                
                parent::MDUpdateListener($a_element);
                
                $md = new ilMD($this->getId(),0, $this->getType());
                if(!is_object($md_gen = $md->getGeneral()))
                {
                        return false;
                }
                $title = $md_gen->getTitle();
                foreach($md_gen->getDescriptionIds() as $id)
                {
                        $md_des = $md_gen->getDescription($id);
                        $description = $md_des->getDescription();
                        break;
                }
                switch($a_element)
                {
                        case 'General':
                                        include_once './Modules/WebResource/classes/class.ilLinkResourceItems.php';
                                        if(ilLinkResourceItems::lookupNumberOfLinks($this->getId()) == 1)
                                        {
                                                $link_arr = ilLinkResourceItems::_getFirstLink($this->getId());
                                                $link = new ilLinkResourceItems($this->getId());
                                                $link->readItem($link_arr['link_id']);
                                                $link->setTitle($title);
                                                $link->setDescription($description);
                                                $link->update();
                                        }
                                        break;
                        default:
                                return true;
                }
                return true;
        }
        


        function delete()
        {
                // always call parent delete function first!!
                if (!parent::delete())
                {
                        return false;
                }

                // delete items
                include_once './Modules/WebResource/classes/class.ilLinkResourceItems.php';
                ilLinkResourceItems::_deleteAll($this->getId());


                // Delete notify entries
                include_once './Services/LinkChecker/classes/class.ilLinkCheckNotify.php';
                ilLinkCheckNotify::_deleteObject($this->getId());

                // delete meta data
                $this->deleteMetaData();

                return true;
        }

        function initLinkResourceItemsObject()
        {
                include_once './Modules/WebResource/classes/class.ilLinkResourceItems.php';

                $this->items_obj =& new ilLinkResourceItems($this->getId());

                return true;
        }
        
        public function cloneObject($a_target_id,$a_copy_id = 0)
        {
                $new_obj = parent::cloneObject($a_target_id,$a_copy_id);
                $this->cloneMetaData($new_obj);
                
                // object created now copy other settings
                include_once('Modules/WebResource/classes/class.ilLinkResourceItems.php');
                $links = new ilLinkResourceItems($this->getId());
                $links->cloneItems($new_obj->getId());
                
                // append copy info weblink title
                if(ilLinkResourceItems::_isSingular($new_obj->getId()))
                {
                        $first = ilLinkResourceItems::_getFirstLink($new_obj->getId());
                        ilLinkResourceItems::updateTitle($first['link_id'], $new_obj->getTitle());
                }
                
                return $new_obj;
        }

        public function toXML(ilXmlWriter $writer)
        {
                $attribs = array("obj_id" => "il_".IL_INST_ID."_webr_".$this->getId());

                $writer->xmlStartTag('WebLinks',$attribs);
                                
                // LOM MetaData
                include_once 'Services/MetaData/classes/class.ilMD2XML.php';
                $md2xml = new ilMD2XML($this->getId(),$this->getId(),'webr');
                $md2xml->startExport();
                $writer->appendXML($md2xml->getXML());

                // Sorting
                include_once './Services/Container/classes/class.ilContainerSortingSettings.php';
                switch(ilContainerSortingSettings::_lookupSortMode($this->getId()))
                {
                        case ilContainer::SORT_MANUAL:
                                $writer->xmlElement(
                                        'Sorting',
                                        array('type'    => 'Manual')
                                );
                                break;
                        
                        case ilContainer::SORT_TITLE:
                        default:
                                $writer->xmlElement(
                                        'Sorting',
                                        array('type'    => 'Title')
                                );
                                break;
                }
                
                // All links
                include_once './Modules/WebResource/classes/class.ilLinkResourceItems.php';
                $links = new ilLinkResourceItems($this->getId());
                $links->toXML($writer);
                
                
                $writer->xmlEndTag('WebLinks');
                return true;            
        }


        // PRIVATE


} // END class.ilObjLinkResource
?>