class.ilExportFieldsInfo.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. |
        +-----------------------------------------------------------------------------+
*/

class ilExportFieldsInfo
{
        private static $instance = null;
        
        private $settings;
        private $db;
        private $lng;
        
        private $obj_type = '';
        
        private $possible_fields = array();
        
        private function __construct($a_type)
        {
                global $ilDB,$ilSetting,$lng;
                
                $this->db = $ilDB;
                $this->lng = $lng;
                $this->settings = $ilSetting;
                
                $this->obj_type = $a_type;
                
                $this->read();
        }
        
        public static function _getInstanceByType($a_type)
        {
                if(is_object(self::$instance[$a_type]))
                {
                        return self::$instance[$a_type];
                }
                return self::$instance[$a_type] = new ilExportFieldsInfo($a_type);
        }
        
        public function getType()
        {
                return $this->obj_type;
        }
        
        public function isExportable($a_field_name)
        {
                return array_key_exists($a_field_name,$this->possible_fields);
        }
        
        public function getFieldsInfo()
        {
                return $this->possible_fields;
        }
        
        public function getExportableFields()
        {
                foreach($this->possible_fields as $field => $exportable)
                {
                        if($exportable)
                        {
                                $fields[] = $field;
                        }
                }
                return $fields ? $fields : array();
        }
        
        public function getSelectableFieldsInfo($a_obj_id)
        {
                global $lng;
                
                $fields = array();
                foreach($this->getExportableFields() as $field)
                {
                        switch($field)
                        {
                                case 'lastname':
                                case 'firstname':
                                        break;
        
                                case 'username':
                                        $fields['login']['txt'] = $lng->txt('username');
                                        $fields['login']['default'] = 1;
                                        break;
                                default:
                                        $fields[$field]['txt'] = $lng->txt($field);
                                        $fields[$field]['default'] = 0;
                                        break;
                        }
                }
                
                include_once './Services/User/classes/class.ilUserDefinedFields.php';
                if($this->getType() == 'crs')
                {
                        $udf = ilUserDefinedFields::_getInstance()->getCourseExportableFields();
                }
                elseif($this->getType() == 'grp')
                {
                        $udf = ilUserDefinedFields::_getInstance()->getGroupExportableFields();
                }               
                if($udf)
                {
                        foreach($udf as $field_id => $field)
                        {
                                $fields['udf_'.$field_id]['txt'] = $field['field_name'];
                                $fields['udf_'.$field_id]['default'] = 0;
                        }
                }
                
                include_once './Modules/Course/classes/Export/class.ilCourseDefinedFieldDefinition.php';
                $cdf = ilCourseDefinedFieldDefinition::_getFields($a_obj_id);
                foreach($cdf as $def)
                {
                        $fields['odf_'.$def->getId()]['txt'] = $def->getName();
                        $fields['odf_'.$def->getId()]['default'] = 0;
                }
                
                return $fields;
        }
        
        public function exportableFieldsToInfoString()
        {
                $fields = array();
                foreach($this->getExportableFields() as $field)
                {
                        $fields[] = $this->lng->txt($field);
                }
                return implode('<br />',$fields);
        }
        
        private function read()
        {
                include_once './Services/User/classes/class.ilUserProfile.php';
                
                $profile = new ilUserProfile();
                $profile->skipGroup('settings');
                
                foreach($profile->getStandardFields() as $key => $data)
                {
                        if($this->getType() == 'crs')
                        {
                                if(!$data['course_export_hide'])
                                {
                                        if(isset($data['course_export_fix_value']) and $data['course_export_fix_value'])
                                        {
                                                $this->possible_fields[$key] = $data['course_export_fix_value'];
                                        }
                                        else
                                        {
                                                $this->possible_fields[$key] = 0;
                                        }
                                }
                        }
                        elseif($this->getType() == 'grp')
                        {
                                if(!$data['group_export_hide'])
                                {
                                        if(isset($data['group_export_fix_value']) and $data['group_export_fix_value'])
                                        {
                                                $this->possible_fields[$key] = $data['group_export_fix_value'];
                                        }
                                        else
                                        {
                                                $this->possible_fields[$key] = 0;
                                        }
                                }
                        }
                }
                $settings_all = $this->settings->getAll();

                $field_part_limit = 5;
                switch($this->getType())
                {
                        case 'crs':
                                $field_prefix = 'usr_settings_course_export_';
                                $field_part_limit = 5;
                                break;
                                
                        case 'grp':
                                $field_prefix = 'usr_settings_group_export_';
                                $field_part_limit = 5;
                                break;
                }
                
                foreach($settings_all as $key => $value)
                {
                        if(stristr($key,$field_prefix) and $value)
                        {
                                // added limit for mantis 11096
                                $field_parts = explode('_',$key,$field_part_limit);
                                $field = $field_parts[count($field_parts) - 1];
                                if(array_key_exists($field,$this->possible_fields))
                                {
                                        $this->possible_fields[$field] = 1;
                                }
                        }
                }
                return true;
        }
}
?>