class.ilAdvancedMDValueParser.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 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/Utilities/interfaces/interface.ilSaxSubsetParser.php');
include_once('Services/AdvancedMetaData/classes/class.ilAdvancedMDFieldDefinition.php');
include_once('Services/AdvancedMetaData/classes/class.ilAdvancedMDValues.php');

class ilAdvancedMDValueParser implements ilSaxSubsetParser
{
        protected $cdata = '';
        protected $obj_id;
        protected $values_records = array(); // [ilAdvancedMDValues]
        protected $values = array(); // [ilAdvancedMDFieldDefinition]
        protected $current_value = null;
        
        public function __construct($a_new_obj_id = 0)
        {
                $this->obj_id = $a_new_obj_id;
        }
        
        public function setObjId($a_obj_id)
        {
                $this->obj_id = $a_obj_id;
        }
        
        public function save()
        {
                foreach($this->values_records as $values_record)
                {
                        $values_record->write();
                }               
                return true;
        }
        
        public function handlerBeginTag($a_xml_parser,$a_name,$a_attribs)
        {
                switch($a_name)
                {
                        case 'AdvancedMetaData':                                
                                $this->values_records = ilAdvancedMDValues::getInstancesForObjectId($this->obj_id);                     
                                foreach($this->values_records as $values_record)
                                {                               
                                        // init ADTGroup before definitions to bind definitions to group
                                        $values_record->getADTGroup();
                        
                                        foreach($values_record->getDefinitions() as $def)
                                        {                                               
                                                $this->values[$def->getImportId()] = $def;
                                        }
                                }               
                                break;
                                
                        case 'Value':
                                $this->initValue($a_attribs['id']);
                                break;
                }
                
        }

        public function handlerEndTag($a_xml_parser,$a_name)
        {
                switch($a_name)
                {
                        case 'AdvancedMetaData':                                                
                                break;
                                
                        case 'Value':
                                $value = trim($this->cdata);
                                if(is_object($this->current_value) && $value)
                                {
                                        $this->current_value->importValueFromXML($value);
                                }
                                break;
                }
                $this->cdata = '';
        }
        
        public function handlerCharacterData($a_xml_parser,$a_data)
        {
                if($a_data != "\n")
                {
                        // Replace multiple tabs with one space
                        $a_data = preg_replace("/\t+/"," ",$a_data);

                        $this->cdata .= $a_data;
                }
        }
        
        private function initValue($a_import_id)
        {               
                if(isset($this->values[$a_import_id]))
                {
                        $this->current_value = $this->values[$a_import_id];                     
                }
                else
                {
                        $this->current_value = null;
                }
                
        }
}


?>