class.ilMDAnnotation.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. |
        +-----------------------------------------------------------------------------+
*/


include_once 'class.ilMDBase.php';

class ilMDAnnotation extends ilMDBase
{
        // SET/GET
        function setEntity($a_entity)
        {
                $this->entity = $a_entity;
        }
        function getEntity()
        {
                return $this->entity;
        }
        function setDate($a_date)
        {
            $this->date = $a_date;
        }
        function getDate()
        {
                return $this->date;
        }
        function setDescription($a_desc)
        {
                $this->description = $a_desc;
        }
        function getDescription()
        {
                return $this->description;
        }
        function setDescriptionLanguage($lng_obj)
        {
                if(is_object($lng_obj))
                {
                        $this->description_language =& $lng_obj;
                }
        }
        function &getDescriptionLanguage()
        {
                return $this->description_language;
        }
        function getDescriptionLanguageCode()
        {
                if(is_object($this->description_language))
                {
                        return $this->description_language->getLanguageCode();
                }
                return false;
        }

        function save()
        {
                global $ilDB;
                
                $fields = $this->__getFields();
                $fields['meta_annotation_id'] = array('integer',$next_id = $ilDB->nextId('il_meta_annotation'));
                
                if($this->db->insert('il_meta_annotation',$fields))
                {
                        $this->setMetaId($next_id);
                        return $this->getMetaId();
                }
                return false;
        }

        function update()
        {
                global $ilDB;
                
                if($this->getMetaId())
                {
                        if($this->db->update('il_meta_annotation',
                                                                        $this->__getFields(),
                                                                        array("meta_annotation_id" => array('integer',$this->getMetaId()))))
                        {
                                return true;
                        }
                }
                return false;
        }

        function delete()
        {
                global $ilDB;
                
                if($this->getMetaId())
                {
                        $query = "DELETE FROM il_meta_annotation ".
                                "WHERE meta_annotation_id = ".$ilDB->quote($this->getMetaId() ,'integer');
                        $res = $ilDB->manipulate($query);
                        
                        return true;
                }
                return false;
        }
                        

        function __getFields()
        {
                return array('rbac_id'  => array('integer',$this->getRBACId()),
                                         'obj_id'       => array('integer',$this->getObjId()),
                                         'obj_type'     => array('text',$this->getObjType()),
                                         'entity'       => array('clob',$this->getEntity()),
                                         'a_date'               => array('clob',$this->getDate()),
                                         'description' => array('clob',$this->getDescription()),
                                         'description_language' => array('text',$this->getDescriptionLanguageCode()));
        }

        function read()
        {
                global $ilDB;
                
                include_once 'Services/MetaData/classes/class.ilMDLanguageItem.php';

                if($this->getMetaId())
                {
                        $query = "SELECT * FROM il_meta_annotation ".
                                "WHERE meta_annotation_id = ".$ilDB->quote($this->getMetaId() ,'integer');

                        $res = $this->db->query($query);
                        while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                        {
                                $this->setRBACId($row->rbac_id);
                                $this->setObjId($row->obj_id);
                                $this->setObjType($row->obj_type);
                                $this->setEntity($row->entity);
                                $this->setDate($row->a_date);
                                $this->setDescription($row->description);
                                $this->description_language = new ilMDLanguageItem($row->description_language);
                        }
                }
                return true;
        }

        /*
         * XML Export of all meta data
         * @param object (xml writer) see class.ilMD2XML.php
         * 
         */
        function toXML(&$writer)
        {
                $writer->xmlStartTag('Annotation');
                $writer->xmlElement('Entity',null,$this->getEntity());
                $writer->xmlElement('Date',null,$this->getDate());
                $writer->xmlElement('Description',array('Language' => $this->getDescriptionLanguageCode()
                                                                                                ? $this->getDescriptionLanguageCode()
                                                                                                : 'en'),
                                                        $this->getDescription());
                $writer->xmlEndTag('Annotation');
        }

                                

        // STATIC
        static function _getIds($a_rbac_id,$a_obj_id)
        {
                global $ilDB;

                $query = "SELECT meta_annotation_id FROM il_meta_annotation ".
                        "WHERE rbac_id = ".$ilDB->quote($a_rbac_id ,'integer')." ".
                        "AND obj_id = ".$ilDB->quote($a_obj_id ,'integer');


                $res = $ilDB->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        $ids[] = $row->meta_annotation_id;
                }
                return $ids ? $ids : array();
        }
}
?>