class.ilMDTechnical.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 ilMDTechnical extends ilMDBase
{
        function ilMDTechnical($a_rbac_id = 0,$a_obj_id = 0,$a_obj_type = '')
        {
                parent::ilMDBase($a_rbac_id,
                                                 $a_obj_id,
                                                 $a_obj_type);
        }

        function getPossibleSubelements()
        {
                $subs['Format'] = 'meta_format';
                $subs['Location'] = 'meta_location';
                if(!$this->getOrCompositeIds())
                {
                        $subs['Requirement'] = 'meta_requirement';
                }
                if(!$this->getRequirementIds())
                {
                        $subs['OrComposite'] = 'meta_or_composite';
                }
                        
                return $subs;
        }

        // Methods for child objects (Format, Location, Requirement OrComposite)
        function &getFormatIds()
        {
                include_once 'Services/MetaData/classes/class.ilMDFormat.php';

                return ilMDFormat::_getIds($this->getRBACId(),$this->getObjId());
        }
        function &getFormat($a_format_id)
        {
                include_once 'Services/MetaData/classes/class.ilMDFormat.php';

                if(!$a_format_id)
                {
                        return false;
                }
                $for =& new ilMDFormat($this,$a_format_id);
                $for->setMetaId($a_format_id);

                return $for;
        }
        function &addFormat()
        {
                include_once 'Services/MetaData/classes/class.ilMDFormat.php';

                $for =& new ilMDFormat($this->getRBACId(),$this->getObjId(),$this->getObjType());

                return $for;
        }
        function &getLocationIds()
        {
                include_once 'Services/MetaData/classes/class.ilMDLocation.php';

                return ilMDLocation::_getIds($this->getRBACId(),$this->getObjId(),$this->getMetaId(),'meta_technical');
        }
        function &getLocation($a_location_id)
        {
                include_once 'Services/MetaData/classes/class.ilMDLocation.php';

                if(!$a_location_id)
                {
                        return false;
                }
                $loc =& new ilMDLocation();
                $loc->setMetaId($a_location_id);

                return $loc;
        }
        function &addLocation()
        {
                include_once 'Services/MetaData/classes/class.ilMDLocation.php';

                $loc =& new ilMDLocation($this->getRBACId(),$this->getObjId(),$this->getObjType());
                $loc->setParentId($this->getMetaId());
                $loc->setParentType('meta_technical');

                return $loc;
        }
        function &getRequirementIds()
        {
                include_once 'Services/MetaData/classes/class.ilMDRequirement.php';

                return ilMDRequirement::_getIds($this->getRBACId(),$this->getObjId(),$this->getMetaId(),'meta_technical');
        }
        function &getRequirement($a_requirement_id)
        {
                include_once 'Services/MetaData/classes/class.ilMDRequirement.php';

                if(!$a_requirement_id)
                {
                        return false;
                }
                $rec =& new ilMDRequirement();
                $rec->setMetaId($a_requirement_id);
                
                return $rec;
        }
        function &addRequirement()
        {
                include_once 'Services/MetaData/classes/class.ilMDRequirement.php';

                $rec =& new ilMDRequirement($this->getRBACId(),$this->getObjId(),$this->getObjType());
                $rec->setParentId($this->getMetaId());
                $rec->setParentType('meta_technical');

                return $rec;
        }
        function &getOrCompositeIds()
        {
                include_once 'Services/MetaData/classes/class.ilMDOrComposite.php';

                return ilMDOrComposite::_getIds($this->getRBACId(),$this->getObjId(),$this->getMetaId(),'meta_technical');
        }
        function &getOrComposite($a_or_composite_id)
        {
                include_once 'Services/MetaData/classes/class.ilMDOrComposite.php';

                if(!$a_or_composite_id)
                {
                        return false;
                }
                $orc =& new ilMDOrComposite($this->getRBACId(),$this->getObjId(),$this->getObjType());
                $orc->setOrCompositeId($a_or_composite_id);
                $orc->setParentId($this->getMetaId());
                $orc->setParentType('meta_technical');

                return $orc;
        }
        function &addOrComposite()
        {
                include_once 'Services/MetaData/classes/class.ilMDOrComposite.php';

                $orc =& new ilMDOrComposite($this->getRBACId(),$this->getObjId(),$this->getObjType());
                $orc->setParentId($this->getMetaId());
                $orc->setParentType('meta_technical');

                return $orc;
        }

        // SET/GET
        function setSize($a_size)
        {
                $this->size = $a_size;
        }
        function getSize()
        {
                return $this->size;
        }
        function setInstallationRemarks($a_val)
        {
                $this->installation_remarks = $a_val;
        }
        function getInstallationRemarks()
        {
                return $this->installation_remarks;
        }
        function setInstallationRemarksLanguage(&$lng_obj)
        {
                if(is_object($lng_obj))
                {
                        $this->installation_remarks_language =& $lng_obj;
                }
        }
        function &getInstallationRemarksLanguage()
        {
                return is_object($this->installation_remarks_language) ? $this->installation_remarks_language : false;
        }
        function getInstallationRemarksLanguageCode()
        {
                return is_object($this->installation_remarks_language) ? $this->installation_remarks_language->getLanguageCode() : false;
        }
        function setOtherPlatformRequirements($a_val)
        {
                $this->other_platform_requirements = $a_val;
        }
        function getOtherPlatformRequirements()
        {
                return $this->other_platform_requirements;
        }
        function setOtherPlatformRequirementsLanguage(&$lng_obj)
        {
                if(is_object($lng_obj))
                {
                        $this->other_platform_requirements_language =& $lng_obj;
                }
        }
        function &getOtherPlatformRequirementsLanguage()
        {
                return is_object($this->other_platform_requirements_language) ? $this->other_platform_requirements_language : false;
        }
        function getOtherPlatformRequirementsLanguageCode()
        {
                return is_object($this->other_platform_requirements_language) 
                        ? $this->other_platform_requirements_language->getLanguageCode() 
                        : false;
        }
        function setDuration($a_val)
        {
                $this->duration = $a_val;
        }
        function getDuration()
        {
                return $this->duration;
        }
        
        

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

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

        function delete()
        {
                global $ilDB;
                
                if($this->getMetaId())
                {
                        $query = "DELETE FROM il_meta_technical ".
                                "WHERE meta_technical_id = ".$ilDB->quote($this->getMetaId() ,'integer');
                        $res = $ilDB->manipulate($query);
                        
                        foreach($this->getFormatIds() as $id)
                        {
                                $for =& $this->getFormat($id);
                                $for->delete();
                        }

                        foreach($this->getLocationIds() as $id)
                        {
                                $loc =& $this->getLocation($id);
                                $loc->delete();
                        }
                        foreach($this->getRequirementIds() as $id)
                        {
                                $req =& $this->getRequirement($id);
                                $req->delete();
                        }
                        foreach($this->getOrCompositeIds() as $id)
                        {
                                $orc =& $this->getOrComposite($id);
                                $orc->delete();
                        }

                        return true;

                }
                return false;
        }
                        

        function __getFields()
        {
                return array('rbac_id'  => array('integer',$this->getRBACId()),
                                         'obj_id'       => array('integer',$this->getObjId()),
                                         'obj_type'     => array('text',$this->getObjType()),
                                         't_size'               => array('text',$this->getSize()),
                                         'ir' => array('text',$this->getInstallationRemarks()),
                                         'ir_language' => array('text',$this->getInstallationRemarksLanguageCode()),
                                         'opr' => array('text',$this->getOtherPlatformRequirements()),
                                         'opr_language' => array('text',$this->getOtherPlatformRequirementsLanguageCode()),
                                         'duration' => array('text',$this->getDuration()));
        }

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

                if($this->getMetaId())
                {

                        $query = "SELECT * FROM il_meta_technical ".
                                "WHERE meta_technical_id = ".$ilDB->quote($this->getMetaId() ,'integer')." ";

                        $res = $ilDB->query($query);
                        while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                        {
                                $this->setRBACId($row->rbac_id);
                                $this->setObjId($row->obj_id);
                                $this->setObjType($row->obj_type);
                                $this->setSize($row->t_size);
                                $this->setInstallationRemarks($row->ir);
                                $this->setInstallationRemarksLanguage(new ilMDLanguageItem($row->ir_language));
                                $this->setOtherPlatformRequirements($row->opr);
                                $this->setOtherPlatformRequirementsLanguage(new ilMDLanguageItem($row->opr_language));
                                $this->setDuration($row->duration);
                        }
                        return true;
                }
                return false;
        }
                                
        /*
         * XML Export of all meta data
         * @param object (xml writer) see class.ilMD2XML.php
         * 
         */
        function toXML(&$writer)
        {
                $writer->xmlStartTag('Technical');

                // Format
                foreach($this->getFormatIds() as $id)
                {
                        $for =& $this->getFormat($id);
                        $for->toXML($writer);
                }

                // Size
                if(strlen($this->getSize()))
                {
                        $writer->xmlElement('Size',null,$this->getSize());
                }
                
                // Location
                foreach($this->getLocationIds() as $id)
                {
                        $loc =& $this->getLocation($id);
                        $loc->toXML($writer);
                }

                // Requirement
                foreach($this->getRequirementIds() as $id)
                {
                        $req =& $this->getRequirement($id);
                        $req->toXML($writer);
                }

                // OrComposite
                foreach($this->getOrCompositeIds() as $id)
                {
                        $orc =& $this->getOrComposite($id);
                        $orc->toXML($writer);
                }
                
                // InstallationRemarks
                if(strlen($this->getInstallationRemarks()))
                {
                        $writer->xmlElement('InstallationRemarks',
                                                                array('Language' => $this->getInstallationRemarksLanguageCode()
                                                                          ? $this->getInstallationRemarksLanguageCode()
                                                                          : 'en'),
                                                                $this->getInstallationRemarks());
                }

                // OtherPlatformRequirements
                if(strlen($this->getOtherPlatformRequirements()))
                {
                        $writer->xmlElement('OtherPlatformRequirements',
                                                                array('Language' => $this->getOtherPlatformRequirementsLanguageCode()
                                                                          ? $this->getOtherPlatformRequirementsLanguageCode()
                                                                          : 'en'),
                                                                $this->getOtherPlatformRequirements());
                }
                // Duration
                if(strlen($this->getDuration()))
                {
                        $writer->xmlElement('Duration',null,$this->getDuration());
                }
                
                $writer->xmlEndTag('Technical');

        }
        // STATIC
        function _getId($a_rbac_id,$a_obj_id)
        {
                global $ilDB;

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

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        return $row->meta_technical_id;
                }
                return false;
        }
}
?>