"Fatal error: Cannot redeclare class ilobject in" mm.
Hej.Er ny i php, og har fået til opgave at installere et Elearning system.
men får den her fejl efter jeg har logget ind på siden
Fatal error: Cannot redeclare class ilobject in /opt/ilias/lib/pear/class.ilObject.php on line 36
class.ilObejct følger:
<?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. |
+-----------------------------------------------------------------------------+
*/
/**
* Class ilObject
* Basic functions for all objects
*
* @author Stefan Meyer <smeyer@databay.de>
* @author Alex Killing <alex.killing@gmx.de>
* @version $Id: class.ilObject.php,v 1.65 2004/01/20 10:47:40 shofmann Exp $
*
* @package ilias-core
*/
class ilObject
{
/**
* ilias object
* @var object ilias
* @access private
*/
var $ilias;
/**
* lng object
* @var object language
* @access private
*/
var $lng;
/**
* object id
* @var integer object id of object itself
* @access private
*/
var $id; // true object_id!!!!
var $ref_id;// reference_id
var $type;
var $title;
var $desc;
var $owner;
var $create_date;
var $last_update;
var $import_id;
/**
* indicates if object is a referenced object
* @var boolean
* @access private
*/
var $referenced;
/**
* object list
* @var array contains all child objects of current object
* @access private
*/
var $objectList;
/**
* max title length
* @var integer
*/
var $max_title;
/**
* max description length
* @var integer
*/
var $max_desc;
/**
* add dots to shortened titles and descriptions
* @var boolean
*/
var $add_dots;
/**
* object_data record
*/
var $obj_data_record;
/**
* Constructor
* @access public
* @param integer reference_id or object_id
* @param boolean treat the id as reference_id (true) or object_id (false)
*/
function ilObject($a_id = 0, $a_reference = true)
{
global $ilias, $lng;
if (DEBUG)
{
echo "<br/><font color=\"red\">type(".$this->type.") id(".$a_id.") referenced(".$a_reference.")</font>";
}
$this->ilias =& $ilias;
$this->lng =& $lng;
$this->max_title = MAXLENGTH_OBJ_TITLE;
$this->max_desc = MAXLENGTH_OBJ_DESC;
$this->add_dots = true;
$this->referenced = $a_reference;
if ($a_id == 0)
{
$this->referenced = false; // newly created objects are never referenced
} // they will get referenced if createReference() is called
if ($this->referenced)
{
$this->ref_id = $a_id;
}
else
{
$this->id = $a_id;
}
// read object data
if ($a_id != 0)
{
$this->read();
}
}
/**
* read object data from db into object
* @param boolean
* @access public
*/
function read($a_force_db = false)
{
global $objDefinition;
if (isset($this->obj_data_record) && !$a_force_db)
{
$obj = $this->obj_data_record;
}
else if ($this->referenced)
{
// check reference id
if (!isset($this->ref_id))
{
$message = "ilObject::read(): No ref_id given!";
$this->ilias->raiseError($message,$this->ilias->error_obj->WARNING);
}
// read object data
$q = "SELECT * FROM object_data ".
"LEFT JOIN object_reference ON object_data.obj_id=object_reference.obj_id ".
"WHERE object_reference.ref_id='".$this->ref_id."'";
$object_set = $this->ilias->db->query($q);
// check number of records
if ($object_set->numRows() == 0)
{
$message = "ilObject::read(): Object with ref_id ".$this->ref_id." not found!";
$this->ilias->raiseError($message,$this->ilias->error_obj->WARNING);
}
$obj = $object_set->fetchRow(DB_FETCHMODE_ASSOC);
}
else
{
// check object id
if (!isset($this->id))
{
$message = "ilObject::read(): No obj_id given!";
$this->ilias->raiseError($message,$this->ilias->error_obj->WARNING);
}
// read object data
$q = "SELECT * FROM object_data ".
"WHERE obj_id = '".$this->id."'";
$object_set = $this->ilias->db->query($q);
// check number of records
if ($object_set->numRows() == 0)
{
$message = "ilObject::read(): Object with obj_id: ".$this->id." not found!";
$this->ilias->raiseError($message,$this->ilias->error_obj->WARNING);
}
$obj = $object_set->fetchRow(DB_FETCHMODE_ASSOC);
}
$this->id = $obj["obj_id"];
$this->type = $obj["type"];
$this->title = $obj["title"];
$this->desc = $obj["description"];
$this->owner = $obj["owner"];
$this->create_date = $obj["create_date"];
$this->last_update = $obj["last_update"];
$this->import_id = $obj["import_id"];
// multilingual support systemobjects (sys) & categories (db)
$translation_type = $objDefinition->getTranslationType($this->type);
if ($translation_type == "sys")
{
$this->title = $this->lng->txt("obj_".$this->type);
$this->desc = $this->lng->txt("obj_".$this->type."_desc");
}
elseif ($translation_type == "db")
{
$q = "SELECT title,description FROM object_translation ".
"WHERE obj_id = ".$this->id." ".
"AND lang_code = '".$this->ilias->account->getPref("language")."' ".
"AND NOT lang_default = 1";
$r = $this->ilias->db->query($q);
$row = $r->fetchRow(DB_FETCHMODE_OBJECT);
if ($row)
{
$this->title = $row->title;
$this->desc = $row->description;
}
}
}
/**
* get object id
* @access public
* @return integer object id
*/
function getId()
{
return $this->id;
}
/**
* set object id
* @access public
* @param integer $a_id object id
*/
function setId($a_id)
{
$this->id = $a_id;
}
/**
* set reference id
* @access public
* @param integer $a_id reference id
*/
function setRefId($a_id)
{
$this->ref_id = $a_id;
$this->referenced = true;
}
/**
* get reference id
* @access public
* @return integer reference id
*/
function getRefId()
{
return $this->ref_id;
}
/**
* get object type
* @access public
* @return string object type
*/
function getType()
{
return $this->type;
}
/**
* set object type
* @access public
* @param integer $a_type object type
*/
function setType($a_type)
{
$this->type = $a_type;
}
/**
* get object title
* @access public
* @return string object title
*/
function getTitle()
{
return $this->title;
}
/**
* set object title
*
* @access public
* @param string $a_title object title
*/
function setTitle($a_title)
{
if ($a_title == "")
{
$a_title = "NO TITLE";
}
$this->title = ilUtil::shortenText($a_title, $this->max_title, $this->add_dots);
}
/**
* get object description
*
* @access public
* @return string object description
*/
function getDescription()
{
return $this->desc;
}
/**
* set object description
*
* @access public
* @param string $a_desc object description
*/
function setDescription($a_desc)
{
$this->desc = ilUtil::shortenText($a_desc, $this->max_desc, $this->add_dots);
}
/**
* get import id
*
* @access public
* @return string import id
*/
function getImportId()
{
return $this->import_id;
}
/**
* set import id
*
* @access public
* @param string $a_import_id import id
*/
function setImportId($a_import_id)
{
$this->import_id = $a_import_id;
}
/**
* get object owner
*
* @access public
* @return integer owner id
*/
function getOwner()
{
return $this->owner;
}
/*
* get full name of object owner
*
* @access public
* @return string owner name or unknown
*/
function getOwnerName()
{
if ($this->getOwner() != -1)
{
$owner = new ilObjUser($this->getOwner());
}
if (is_object($owner))
{
$own_name = $owner->getFullname();
}
else
{
$own_name = $this->lng->txt("unknown");
}
return $own_name;
}
/**
* set object owner
*
* @access public
* @param integer $a_owner owner id
*/
function setOwner($a_owner)
{
$this->owner = $a_owner;
}
/**
* get create date
* @access public
* @return string creation date
*/
function getCreateDate()
{
return $this->create_date;
}
/**
* get last update date
* @access public
* @return string date of last update
*/
function getLastUpdateDate()
{
return $this->last_update;
}
/**
* set object_data record (note: this method should
* only be called from the ilObjectFactory class)
*
* @param array $a_record assoc. array from table object_data
* @access public
* @return integer object id
*/
function setObjDataRecord($a_record)
{
$this->obj_data_record = $a_record;
}
/**
* create
*
* note: title, description and type should be set when this function is called
*
* @access public
* @return integer object id
*/
function create()
{
if (!isset($this->type))
{
$message = get_class($this)."::create(): No object type given!";
$this->ilias->raiseError($message,$this->ilias->error_obj->WARNING);
}
$this->title = ilUtil::shortenText($this->getTitle(), $this->max_title, $this->add_dots);
$this->desc = ilUtil::shortenText($this->getDescription(), $this->max_desc, $this->add_dots);
$q = "INSERT INTO object_data ".
"(type,title,description,owner,create_date,last_update,import_id) ".
"VALUES ".
"('".$this->type."','".ilUtil::prepareDBString($this->getTitle())."','".ilUtil::prepareDBString($this->getDescription())."',".
"'".$this->ilias->account->getId()."',now(),now(),'".$this->getImportId()."')";
$this->ilias->db->query($q);
$this->id = getLastInsertId();
// the line ($this->read();) messes up meta data handling: meta data,
// that is not saved at this time, gets lost, so we query for the dates alone
//$this->read();
$q = "SELECT last_update, create_date FROM object_data".
" WHERE obj_id = '".$this->id."'";
$obj_set = $this->ilias->db->query($q);
$obj_rec = $obj_set->fetchRow(DB_FETCHMODE_ASSOC);
$this->last_update = $obj_rec["last_update"];
$this->create_date = $obj_rec["create_date"];
// set owner for new objects
$this->setOwner($this->ilias->account->getId());
return $this->id;
}
/**
* update object in db
*
* @access public
* @return boolean true on success
*/
function update()
{
$q = "UPDATE object_data ".
"SET ".
"title = '".ilUtil::prepareDBString($this->getTitle())."',".
"description = '".ilUtil::prepareDBString($this->getDescription())."', ".
"import_id = '".$this->getImportId()."', ".
"last_update = now() ".
"WHERE obj_id = '".$this->getId()."'";
$this->ilias->db->query($q);
// the line ($this->read();) messes up meta data handling: meta data,
// that is not saved at this time, gets lost, so we query for the dates alone
//$this->read();
$q = "SELECT last_update FROM object_data".
" WHERE obj_id = '".$this->getId()."'";
$obj_set = $this->ilias->db->query($q);
$obj_rec = $obj_set->fetchRow(DB_FETCHMODE_ASSOC);
$this->last_update = $obj_rec["last_update"];
return true;
}
/**
* get current object id for import id (static)
*
* @param int $a_import_id import id
*
* @return int id
*/
function _getIdForImportId($a_import_id)
{
$q = "SELECT * FROM object_data WHERE import_id = '".$a_import_id."'".
" ORDER BY create_date DESC LIMIT 1";
$obj_set = $this->ilias->db->query($q);
if ($obj_rec = $obj_set->fetchRow(DB_FETCHMODE_ASSOC))
{
return $obj_rec["obj_id"];
}
else
{
return 0;
}
}
/**
* maybe this method should be in tree object!?
*
* @todo role/rbac stuff
*/
function putInTree($a_parent_ref)
{
global $tree;
$tree->insertNode($this->getRefId(), $a_parent_ref);
}
/**
* set permissions of object
*
* @param integer reference_id of parent object
* @access public
*/
function setPermissions($a_parent_ref)
{
global $rbacadmin, $rbacreview;
$parentRoles = $rbacreview->getParentRoleIds($a_parent_ref);
foreach ($parentRoles as $parRol)
{
$ops = $rbacreview->getOperationsOfRole($parRol["obj_id"], $this->getType(), $parRol["parent"]);
$rbacadmin->grantPermission($parRol["obj_id"], $ops, $this->getRefId());
}
}
/**
* creates reference for object
*
* @access public
* @return integer reference_id of object
*/
function createReference()
{
if (!isset($this->id))
{
$message = "ilObject::createNewReference(): No obj_id given!";
$this->raiseError($message,$this->ilias->error_obj->WARNING);
}
$q = "INSERT INTO object_reference ".
"(obj_id) VALUES ('".$this->id."')";
$this->ilias->db->query($q);
$this->ref_id = getLastInsertId();
return $this->ref_id;
}
/**
* count references of object
*
* @access public
* @return integer number of references for this object
*/
function countReferences()
{
if (!isset($this->id))
{
$message = "ilObject::countReferences(): No obj_id given!";
$this->ilias->raiseError($message,$this->ilias->error_obj->WARNING);
}
$q = "SELECT COUNT(ref_id) AS num FROM object_reference ".
"WHERE obj_id = '".$this->id."'";
$row = $this->ilias->db->getRow($q);
return $row->num;
}
/**
* clone object into tree
* basic clone function. Register new object in object_data, creates reference and
* insert reference ID in tree. All object specific data must be copied in the clone function of the appropriate object class.
* Look in ilObjForum::clone() for example code
*
* @access public
* @param integer $a_parent_ref ref id of parent object
* @return integer new ref id
*/
function clone($a_parent_ref)
{
$new_obj = new ilObject();
$new_obj->setTitle($this->getTitle());
$new_obj->setType($this->getType());
$new_obj->setDescription($this->getDescription());
$new_obj->create();
$new_ref_id = $new_obj->createReference();
$new_obj->putInTree($a_parent_ref);
$new_obj->setPermissions($a_parent_ref);
// for group object only!
$this->updateGroupTree($new_ref_id,$new_obj->getId(),$a_parent_ref,$this->getRefId());
unset($new_obj);
// ... and finally always return new reference ID!!
return $new_ref_id;
}
/**
* delete object or referenced object
* (in the case of a referenced object, object data is only deleted
* if last reference is deleted)
* This function removes an object entirely from system!!
*
* @access public
* @return boolean true if object was removed completely; false if only a references was removed
*/
function delete()
{
global $rbacadmin;
$remove = false;
// delete object_data entry
if ((!$this->referenced) || ($this->countReferences() == 1))
{
// delete entry in object_data
$q = "DELETE FROM object_data ".
"WHERE obj_id = '".$this->getId()."'";
$this->ilias->db->query($q);
$remove = true;
}
// delete object_reference entry
if ($this->referenced)
{
// delete entry in object_reference
$q = "DELETE FROM object_reference ".
"WHERE ref_id = '".$this->getRefId()."'";
$this->ilias->db->query($q);
// DELETE PERMISSION ENTRIES IN RBAC_PA
// DONE: method overwritten in ilObjRole & ilObjUser.
// this call only applies for objects in rbac (not usr,role,rolt)
// TODO: Do this for role templates too
$rbacadmin->revokePermission($this->getRefId());
}
return $remove;
}
/**
* init default roles settings
* Purpose of this function is to create a local role folder and local roles, that are needed depending on the object type
* If you want to setup default local roles you MUST overwrite this method in derived object classes (see ilObjForum for an example)
* @access public
* @return array empty array
*/
function initDefaultRoles()
{
return array();
}
/**
* creates a local role folder
*
* @access public
* @param string rolefolder title
* @param string rolefolder description
* @param object parent object where the rolefolder is attached to
* @return object rolefolder object
*/
function createRoleFolder()
{
global $rbacreview;
// does a role folder already exists?
// (this check is only 'to be sure' that no second role folder is created under one object.
// the if-construct should never return true)
if ($rolf_data = $rbacreview->getRoleFolderofObject($this->getRefId()))
{
$rfoldObj = $this->ilias->obj_factory->getInstanceByRefId($rolf_data["ref_id"]);
}
else
{
include_once ("classes/class.ilObjRoleFolder.php");
$rfoldObj = new ilObjRoleFolder();
$rfoldObj->setTitle($this->getId());
$rfoldObj->setDescription(" (ref_id ".$this->getRefId().")");
$rfoldObj->create();
$rfoldObj->createReference();
$rfoldObj->putInTree($this->getRefId());
$rfoldObj->setPermissions($this->getRefId());
}
return $rfoldObj;
}
/**
* checks if an object exists in object_data
* @static
* @access public
* @param integer object id or reference id
* @param boolean ture if id is a reference, else false (default)
* @return boolean true if object exists
*/
function _exists($a_id, $a_reference = false)
{
global $ilias;
if ($a_reference)
{
$q = "SELECT * FROM object_data ".
"LEFT JOIN object_reference ON object_reference.obj_id=object_data.obj_id ".
"WHERE object_reference.ref_id='".$a_id."'";
}
else
{
$q = "SELECT * FROM object_data WHERE obj_id='".$a_id."'";
}
$r = $ilias->db->query($q);
return $r->numRows() ? true : false;
}
/**
* notifys an object about an event occured
* Based on the event passed, each object may decide how it reacts.
* TODO: add optional array to pass parameters
*
* @access public
* @param string event
* @param integer reference id of object where the event occured
* @param integer reference id of node in the tree which is actually notified
* @param array passes optional parameters if required
* @return boolean
*/
function notify($a_event,$a_ref_id,$a_parent_non_rbac_id,$a_node_id,$a_params = 0)
{
global $tree;
$parent_id = (int) $tree->getParentId($a_node_id);
if ($parent_id != 0)
{
$obj_data =& $this->ilias->obj_factory->getInstanceByRefId($a_node_id);
$obj_data->notify($a_event,$a_ref_id,$a_parent_non_rbac_id,$parent_id,$a_params);
}
return true;
}
/**
* updates group tree
* @access private
* @param integer reference_id new ref_id of this object, created by clone method
* @return
*/
function updateGroupTree($a_new_ref_id,$a_new_obj_id,$a_parent_ref_id,$a_old_ref_id)
{
global $objDefinition,$tree;
// do nothing if no group was cloned
if (!isset($_SESSION["copied_group_refs"]))
{
return false;
}
// do nothing if current object is not a valid subobject of group object
$subobjects = $objDefinition->getSubObjects("grp");
if (!array_key_exists($this->getType(),$subobjects))
{
return false;
}
// get entries in grp_trees (2)
$q = "SELECT tree FROM grp_tree WHERE child='".$a_old_ref_id."'";
$r = $this->ilias->db->query($q);
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
$grp_ids[] = $row->tree;
}
// fetch correct grp_id
$grp_id = array_intersect($grp_ids,$_SESSION["copied_group_refs"]);
//var_dump("<pre>",$_SESSION["copied_group_refs"],$grp_id,"</pre>");
$q = "UPDATE grp_tree SET child='".$a_new_ref_id."',parent='".$a_parent_ref_id."',obj_id='".$a_new_obj_id."' ".
"WHERE tree='".current($grp_id)."' AND child='".$a_old_ref_id."'";
$this->ilias->db->query($q);
return true;
}
} // END class.ilObject
?>
