Class ilObjectFactory This class offers methods to get instances of the type-specific object classes (derived from ilObject) by their object or reference id Note: The term "Ilias objects" means all object types that are stored in the database table "object_data". More...

Collaboration diagram for ilObjectFactory:

Public Member Functions
	ObjectIdExists (int $obj_id)
	check if obj_id exists. More...

Static Public Member Functions
static	getObjectsForOwner (string $object_type, int $owner_id)
	returns all objects of an owner, filtered by type, objects are not deleted! More...

static	getInstanceByObjId (?int $obj_id, bool $stop_on_error=true)
	get an instance of an Ilias object by object id More...

static	getInstanceByRefId (int $ref_id, bool $stop_on_error=true)
	get an instance of an Ilias object by reference id More...

static	getTypeByRefId (int $ref_id, bool $stop_on_error=true)
	get object type by reference id More...

static	getClassByType (string $obj_type)

Detailed Description

Class ilObjectFactory This class offers methods to get instances of the type-specific object classes (derived from ilObject) by their object or reference id Note: The term "Ilias objects" means all object types that are stored in the database table "object_data".

Author: Alex Killing alex..nosp@m.kill.nosp@m.ing@g.nosp@m.mx.d.nosp@m.e

Version: $Id$

Definition at line 32 of file class.ilObjectFactory.php.

Member Function Documentation

◆ getClassByType()

static ilObjectFactory::getClassByType ( string $obj_type )

static

Definition at line 236 of file class.ilObjectFactory.php.

                                                           : string
    {
        global $DIC;
        $objDefinition = $DIC["objDefinition"];
 
        $class_name = "ilObj" . $objDefinition->getClassName($obj_type);
 
        return $class_name;
    }

References $DIC.

Referenced by assQuestionGUI\addBackTab(), ilWorkspaceTree\createTreeForUser(), ilAdministrationCommandGUI\delete(), ilObjWorkspaceFolderGUI\deleteConfirmation(), ilObjectCopyGUI\getErrorMessageOnDisallowedObjectTypeForTarget(), and ilObjectCopyGUI\saveTarget().

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◆ getInstanceByObjId()

static ilObjectFactory::getInstanceByObjId	(	?int	$obj_id,
		bool	$stop_on_error = `true`
	)

static

get an instance of an Ilias object by object id

Exceptions

ilDatabaseException
ilObjectNotFoundException

Definition at line 84 of file class.ilObjectFactory.php.

                                                                                       : ?ilObject
    {
        global $DIC;
        $objDefinition = $DIC["objDefinition"];
        $ilDB = $DIC->database();
 
        // check object id
        if (!isset($obj_id)) {
            $message = "ilObjectFactory::getInstanceByObjId(): No obj_id given!";
            if ($stop_on_error === true) {
                throw new ilObjectNotFoundException($message);
            }
            return null;
        }
 
        // read object data
        $sql =
            "SELECT obj_id, type, title, description, owner, create_date, last_update, import_id, offline" . PHP_EOL
            . "FROM object_data" . PHP_EOL
            . "WHERE obj_id = " . $ilDB->quote($obj_id, 'integer') . PHP_EOL
        ;
        $result = $ilDB->query($sql);
        // check number of records
        if ($result->numRows() == 0) {
            $message = "ilObjectFactory::getInstanceByObjId(): Object with obj_id: " . $obj_id . " not found!";
            if ($stop_on_error === true) {
                throw new ilObjectNotFoundException($message);
            }
            return null;
        }
 
        $row = $result->fetchRow(ilDBConstants::FETCHMODE_ASSOC);
        $class_name = "ilObj" . $objDefinition->getClassName($row["type"]);
 
        // check class
        if ($class_name == "ilObj") {
            $message = "ilObjectFactory::getInstanceByObjId(): Not able to determine object " .
                "class for type" . $row["type"] . ".";
            if ($stop_on_error === true) {
                throw new ilObjectNotFoundException($message);
            }
            return null;
        }
 
        // create instance
        $obj = new $class_name(0, false);    // this avoids reading of data
        $obj->setId($obj_id);
        $obj->read();
 
        return $obj;
    }

References $DIC, $ilDB, $message, and ilDBConstants\FETCHMODE_ASSOC.

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◆ getInstanceByRefId()

static ilObjectFactory::getInstanceByRefId	(	int	$ref_id,
		bool	$stop_on_error = `true`
	)

static

get an instance of an Ilias object by reference id

Exceptions

ilDatabaseException
ilObjectNotFoundException

Definition at line 141 of file class.ilObjectFactory.php.

                                                                                      : ?ilObject
    {
        global $DIC;
        $objDefinition = $DIC["objDefinition"];
        $ilDB = $DIC->database();
 
        // check reference id
        if (!isset($ref_id)) {
            if ($stop_on_error === true) {
                $message = "ilObjectFactory::getInstanceByRefId(): No ref_id given!";
                throw new ilObjectNotFoundException($message);
            }
            return null;
        }
 
        // read object data
        $sql =
            "SELECT object_data.obj_id, object_data.type" . PHP_EOL
            . "FROM object_data, object_reference" . PHP_EOL
            . "WHERE object_reference.obj_id = object_data.obj_id" . PHP_EOL
            . "AND object_reference.ref_id = " . $ilDB->quote($ref_id, 'integer') . PHP_EOL
        ;
 
        $result = $ilDB->query($sql);
 
        // check number of records
        if ($result->numRows() == 0) {
            if ($stop_on_error === true) {
                $message = "ilObjectFactory::getInstanceByRefId(): Object with ref_id " . $ref_id . " not found!";
                throw new ilObjectNotFoundException($message);
            }
            return null;
        }
 
        $row = $result->fetchRow(ilDBConstants::FETCHMODE_ASSOC);
        $class_name = "ilObj" . $objDefinition->getClassName($row["type"]);
 
        // check class
        if ($class_name == "ilObj") {
            if ($stop_on_error === true) {
                $message = "ilObjectFactory::getInstanceByRefId(): Not able to determine object " .
                    "class for type" . $row["type"] . ".";
                throw new ilObjectNotFoundException($message);
            }
            return null;
        }
 
        // create instance
        $obj = new $class_name(0, false);    // this avoids reading of data
        $obj->setId((int) $row["obj_id"]);
        $obj->setRefId($ref_id);
        $obj->read();
        return $obj;
    }

References $DIC, $ilDB, $message, $ref_id, and ilDBConstants\FETCHMODE_ASSOC.

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◆ getObjectsForOwner()

static ilObjectFactory::getObjectsForOwner	(	string	$object_type,
		int	$owner_id
	)

static

returns all objects of an owner, filtered by type, objects are not deleted!

Definition at line 56 of file class.ilObjectFactory.php.

                                                                                 : array
    {
        global $DIC;
        $ilDB = $DIC->database();
 
        $sql =
            "SELECT object_data.obj_id" . PHP_EOL
            . "FROM object_data, object_reference" . PHP_EOL
            . "WHERE object_reference.obj_id = object_data.obj_id" . PHP_EOL
            . "AND object_data.type = " . $ilDB->quote($object_type, 'text') . PHP_EOL
            . "AND object_data.owner = " . $ilDB->quote($owner_id, 'integer') . PHP_EOL
        ;
 
        $result = $ilDB->query($sql);
 
        $obj_ids = [];
        while ($row = $result->fetchRow(ilDBConstants::FETCHMODE_ASSOC)) {
            $obj_ids [] = $row["obj_id"];
        }
 
        return $obj_ids;
    }

References $DIC, $ilDB, and ilDBConstants\FETCHMODE_ASSOC.

Referenced by ilSoapCourseAdministration\getCoursesForUser(), and ilSoapGroupAdministration\getGroupsForUser().

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◆ getTypeByRefId()

static ilObjectFactory::getTypeByRefId	(	int	$ref_id,
		bool	$stop_on_error = `true`
	)

static

get object type by reference id

Exceptions

ilObjectNotFoundException

Deprecated:: since version 5.3

Definition at line 201 of file class.ilObjectFactory.php.

                                                                                  : ?string
    {
        global $DIC;
        $ilDB = $DIC->database();
 
        // check reference id
        if (!isset($ref_id)) {
            if ($stop_on_error === true) {
                $message = "ilObjectFactory::getTypeByRefId(): No ref_id given!";
                throw new ilObjectNotFoundException($message);
            }
            return null;
        }
 
        // read object data
        $sql =
            "SELECT object_data.obj_id, object_data.type" . PHP_EOL
            . "FROM object_data" . PHP_EOL
            . "LEFT JOIN object_reference ON object_data.obj_id=object_reference.obj_id " . PHP_EOL
            . "WHERE object_reference.ref_id=" . $ilDB->quote($ref_id, 'integer') . PHP_EOL
        ;
        $result = $ilDB->query($sql);
 
        if ($result->numRows() == 0) {
            if ($stop_on_error === true) {
                $message = "ilObjectFactory::getTypeByRefId(): Object with ref_id " . $ref_id . " not found!";
                throw new ilObjectNotFoundException($message);
            }
            return null;
        }
 
        $row = $result->fetchRow(ilDBConstants::FETCHMODE_ASSOC);
        return $row["type"];
    }

References $DIC, $ilDB, $message, $ref_id, and ilDBConstants\FETCHMODE_ASSOC.

Referenced by ilSoapObjectAdministration\copyObject(), ilCopyWizardSettingsXMLParser\handlerBeginTag(), and ilSoapObjectAdministration\moveObject().

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◆ ObjectIdExists()

ilObjectFactory::ObjectIdExists ( int $obj_id )

check if obj_id exists.

To check for ref_ids use ilTree::isInTree()

Definition at line 37 of file class.ilObjectFactory.php.

                                               : bool
    {
        global $DIC;
        $ilDB = $DIC->database();
 
        $sql =
            "SELECT obj_id, type, title, description, owner, create_date, last_update, import_id, offline" . PHP_EOL
            . "FROM object_data" . PHP_EOL
            . "WHERE obj_id = " . $ilDB->quote($obj_id, 'integer') . PHP_EOL
        ;
 
        $result = $ilDB->query($sql);
 
        return (bool) $result->numRows();
    }

References $DIC, and $ilDB.

The documentation for this class was generated from the following file:

components/ILIAS/ILIASObject/classes/class.ilObjectFactory.php

Public Member Functions

Static Public Member Functions

Detailed Description

Member Function Documentation

◆ getClassByType()

◆ getInstanceByObjId()

◆ getInstanceByRefId()

◆ getObjectsForOwner()

◆ getTypeByRefId()

◆ ObjectIdExists()