class.ilMDLifecycle.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 ilMDLifecycle extends ilMDBase
{
    public function getPossibleSubelements()
    {
        $subs['Contribute'] = 'meta_contribute';
 
        return $subs;
    }
 
    // Get subelemsts 'Contribute'
    public function &getContributeIds()
    {
        include_once 'Services/MetaData/classes/class.ilMDContribute.php';
 
        return ilMDContribute::_getIds($this->getRBACId(), $this->getObjId(), $this->getMetaId(), 'meta_lifecycle');
    }
    public function &getContribute($a_contribute_id)
    {
        include_once 'Services/MetaData/classes/class.ilMDContribute.php';
        
        if (!$a_contribute_id) {
            return false;
        }
        $con = new ilMDContribute();
        $con->setMetaId($a_contribute_id);
 
        return $con;
    }
    public function &addContribute()
    {
        include_once 'Services/MetaData/classes/class.ilMDContribute.php';
 
        $con = new ilMDContribute($this->getRBACId(), $this->getObjId(), $this->getObjType());
        $con->setParentId($this->getMetaId());
        $con->setParentType('meta_lifecycle');
 
        return $con;
    }
 
 
    // SET/GET
    public function setStatus($a_status)
    {
        switch ($a_status) {
            case 'Draft':
            case 'Final':
            case 'Revised':
            case 'Unavailable':
                $this->status = $a_status;
 
                // no break
            default:
                return false;
        }
    }
    public function getStatus()
    {
        return $this->status;
    }
    public function setVersion($a_version)
    {
        $this->version = $a_version;
    }
    public function getVersion()
    {
        return $this->version;
    }
    public function setVersionLanguage($lng_obj)
    {
        if (is_object($lng_obj)) {
            $this->version_language =&$lng_obj;
        }
    }
    public function &getVersionLanguage()
    {
        return $this->version_language;
    }
    public function getVersionLanguageCode()
    {
        if (is_object($this->version_language)) {
            return $this->version_language->getLanguageCode();
        }
        return false;
    }
 
    public function save()
    {
        global $ilDB;
        
        $fields = $this->__getFields();
        $fields['meta_lifecycle_id'] = array('integer',$next_id = $ilDB->nextId('il_meta_lifecycle'));
        
        if ($this->db->insert('il_meta_lifecycle', $fields)) {
            $this->setMetaId($next_id);
            return $this->getMetaId();
        }
        return false;
    }
 
    public function update()
    {
        global $ilDB;
        
        if ($this->getMetaId()) {
            if ($this->db->update(
                'il_meta_lifecycle',
                $this->__getFields(),
                array("meta_lifecycle_id" => array('integer',$this->getMetaId()))
            )) {
                return true;
            }
        }
        return false;
    }
 
    public function delete()
    {
        global $ilDB;
        
        // Delete 'contribute'
        foreach ($this->getContributeIds() as $id) {
            $con = $this->getContribute($id);
            $con->delete();
        }
 
 
        if ($this->getMetaId()) {
            $query = "DELETE FROM il_meta_lifecycle " .
                "WHERE meta_lifecycle_id = " . $ilDB->quote($this->getMetaId(), 'integer');
            $res = $ilDB->manipulate($query);
            return true;
        }
        return false;
    }
            
 
    public function __getFields()
    {
        return array('rbac_id'  => array('integer',$this->getRBACId()),
                     'obj_id'   => array('integer',$this->getObjId()),
                     'obj_type' => array('text',$this->getObjType()),
                     'lifecycle_status' => array('text',$this->getStatus()),
                     'meta_version'             => array('text',$this->getVersion()),
                     'version_language' => array('text',$this->getVersionLanguageCode()));
    }
 
    public function read()
    {
        global $ilDB;
        
        include_once 'Services/MetaData/classes/class.ilMDLanguageItem.php';
 
        if ($this->getMetaId()) {
            $query = "SELECT * FROM il_meta_lifecycle " .
                "WHERE meta_lifecycle_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);
                $this->setStatus($row->lifecycle_status);
                $this->setVersion($row->meta_version);
                $this->setVersionLanguage(new ilMDLanguageItem($row->version_language));
            }
        }
        return true;
    }
 
    /*
     * XML Export of all meta data
     * @param object (xml writer) see class.ilMD2XML.php
     *
     */
    public function toXML(&$writer)
    {
        $writer->xmlStartTag('Lifecycle', array('Status' => $this->getStatus()
                                               ? $this->getStatus()
                                               : 'Draft'));
        $writer->xmlElement(
            'Version',
            array('Language' => $this->getVersionLanguageCode()
                                            ? $this->getVersionLanguageCode()
                                            : 'en'),
            $this->getVersion()
        );
 
        // contribute
        $contributes = $this->getContributeIds();
        foreach ($contributes as $id) {
            $con =&$this->getContribute($id);
            $con->toXML($writer);
        }
        if (!count($contributes)) {
            include_once 'Services/MetaData/classes/class.ilMDContribute.php';
            $con = new ilMDContribute($this->getRBACId(), $this->getObjId());
            $con->toXML($writer);
        }
        $writer->xmlEndTag('Lifecycle');
    }
 
                
 
    // STATIC
    public static function _getId($a_rbac_id, $a_obj_id)
    {
        global $ilDB;
 
        $query = "SELECT meta_lifecycle_id FROM il_meta_lifecycle " .
            "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)) {
            return $row->meta_lifecycle_id;
        }
        return false;
    }
}