ILIAS  Release_3_10_x_branch Revision 61812
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Public Member Functions | Static Public Member Functions | Data Fields
ilObjQuestionPool Class Reference
+ Inheritance diagram for ilObjQuestionPool:
+ Collaboration diagram for ilObjQuestionPool:

Public Member Functions

 ilObjQuestionPool ($a_id=0, $a_call_by_reference=true)
 Constructor public.
 create ($a_upload=false)
 create questionpool object
 createReference ()
 Creates a database reference id for the object.
 update ()
 update object data
 updateMetaData ()
 update meta data entry
 read ($a_force_db=false)
 read object data from db into object
 delete ()
 delete object and all related data
 deleteQuestionpool ()
 initDefaultRoles ()
 init default roles settings
 notify ($a_event, $a_ref_id, $a_parent_non_rbac_id, $a_node_id, $a_params=0)
 notifys an object about an event occured Based on the event happend, each object may decide how it reacts.
 deleteQuestion ($question_id)
 Deletes a question from the question pool.
 loadFromDb ()
 Loads a ilObjQuestionpool object from a database.
 saveToDb ()
 Saves a ilObjQuestionpool object to a database.
 getQuestiontype ($question_id)
 Returns the question type of a question with a given id.
 getDescription ()
 get description of content object
 setDescription ($a_description)
 set description of content object
 getTitle ()
 get title of glossary object
 setTitle ($a_title)
 set title of glossary object
 isInUse ($question_id)
 Checks whether the question is in use or not.
& createQuestion ($question_type, $question_id=-1)
 duplicateQuestion ($question_id)
 Duplicates a question for a questionpool.
 copyQuestion ($question_id, $questionpool_to)
 Copies a question into another question pool.
 getQuestionsTable ($sort, $sortorder, $filter_text, $sel_filter_type, $startrow=0)
 Calculates the data for the output of the questionpool.
& getPrintviewQuestions ($sort)
 Calculates the data for the print view of the questionpool.
 exportPagesXML (&$a_xml_writer, $a_inst, $a_target_dir, &$expLog, $questions)
 export pages of test to xml (see ilias_co.dtd)
 exportXMLMetaData (&$a_xml_writer)
 export content objects meta data to xml (see ilias_co.dtd)
 modifyExportIdentifier ($a_tag, $a_param, $a_value)
 exportXMLPageObjects (&$a_xml_writer, $a_inst, &$expLog, $questions)
 export page objects to xml (see ilias_co.dtd)
 exportXMLMediaObjects (&$a_xml_writer, $a_inst, $a_target_dir, &$expLog)
 export media objects to xml (see ilias_co.dtd)
 exportFileItems ($a_target_dir, &$expLog)
 export files of file itmes
 createExportDirectory ()
 creates data directory for export files (data_dir/qpl_data/qpl_<id>/export, depending on data directory that is set in ILIAS setup/ini)
 getExportDirectory ()
 get export directory of questionpool
 getExportFiles ($dir)
 get export files
 _createImportDirectory ()
 creates data directory for import files (data_dir/qpl_data/qpl_<id>/import, depending on data directory that is set in ILIAS setup/ini)
 _getImportDirectory ()
 get import directory of lm
 getImportDirectory ()
 get import directory of lm
& getAllQuestions ()
 Retrieve an array containing all question ids of the questionpool.
& getAllQuestionIds ()
 getImportMapping ()
 get array of (two) new created questions for import id
 toXML ($questions)
 Returns a QTI xml representation of a list of questions.
 _getQuestionCount ($questionpool_id, $complete_questions_only=FALSE)
 Returns the number of questions in a question pool.
 setOnline ($a_online_status)
 Sets the questionpool online status.
 getOnline ()
 _lookupOnline ($a_obj_id, $is_reference=FALSE)
 _hasEqualPoints ($a_obj_id, $is_reference=FALSE)
 Checks a question pool for questions with the same maximum points.
 pasteFromClipboard ()
 Copies/Moves a question from the clipboard.
 copyToClipboard ($question_id)
 Copies a question to the clipboard.
 moveToClipboard ($question_id)
 Moves a question to the clipboard.
 _isWriteable ($object_id, $user_id)
 Returns true, if the question pool is writeable by a given user.
& getQuestionDetails ($question_ids)
 Returns an array containing the qpl_question and qpl_question_type fields for an array of question ids.
& getDeleteableQuestionDetails ($question_ids)
 Returns an array containing the qpl_question and qpl_question_type fields of deleteable questions for an array of question ids.
& getUsedQuestionDetails ($question_ids)
 Returns an array containing the qpl_question and qpl_question_type fields of questions which are used in a random test for an array of question ids.
 _getFullPathToQpl ($ref_id)
 Retrieves the full path to a question pool with a given reference id.
& _getAvailableQuestionpools ($use_object_id=FALSE, $equal_points=FALSE, $could_be_offline=FALSE, $showPath=FALSE, $with_questioncount=FALSE, $permission="read")
 Returns the available question pools for the active user.
& getQplQuestions ()
 cloneObject ($a_target_id, $a_copy_id=0)
 Creates a 1:1 copy of the object and places the copy in a given repository.
& getQuestionTypes ($all_tags=FALSE)
& _getQuestionTypes ($all_tags=FALSE)
& getQuestionList ()
 isPluginActive ($a_pname)
 Checks wheather or not a question plugin with a given name is active.
- Public Member Functions inherited from ilObject
 ilObject ($a_id=0, $a_reference=true)
 Constructor public.
 withReferences ()
 determines wehter objects are referenced or not (got ref ids or not)
 getId ()
 get object id public
 setId ($a_id)
 set object id public
 setRefId ($a_id)
 set reference id public
 getRefId ()
 get reference id public
 getType ()
 get object type public
 setType ($a_type)
 set object type public
 getPresentationTitle ()
 get presentation title Normally same as title Overwritten for sessions
 getUntranslatedTitle ()
 get untranslated object title public
 getLongDescription ()
 get object long description (stored in object_description)
 getImportId ()
 get import id
 setImportId ($a_import_id)
 set import id
 _lookupObjIdByImportId ($a_import_id)
 getOwner ()
 get object owner
 getOwnerName ()
 _lookupOwnerName ($a_owner_id)
 lookup owner name for owner id
 setOwner ($a_owner)
 set object owner
 getCreateDate ()
 get create date public
 getLastUpdateDate ()
 get last update date public
 setObjDataRecord ($a_record)
 set object_data record (note: this method should only be called from the ilObjectFactory class)
 create ()
 create
 MDUpdateListener ($a_element)
 Meta data update listener.
 createMetaData ()
 create meta data entry
 deleteMetaData ()
 delete meta data entry
 updateOwner ()
 update owner of object in db
 _getIdForImportId ($a_import_id)
 get current object id for import id (static)
 _getAllReferences ($a_id)
 get all reference ids of object
 _lookupTitle ($a_id)
 lookup object title
 _lookupDescription ($a_id)
 lookup object description
 _lookupLastUpdate ($a_id, $a_as_string=false)
 lookup last update
 _getLastUpdateOfObjects ($a_objs)
 Get last update for a set of media objects.
 _lookupObjId ($a_id)
 _setDeletedDate ($a_ref_id)
 only called in ilTree::saveSubTree
 _resetDeletedDate ($a_ref_id)
 only called in ilObjectGUI::insertSavedNodes
 _writeTitle ($a_obj_id, $a_title)
 write title to db (static)
 _writeDescription ($a_obj_id, $a_desc)
 write description to db (static)
 _writeImportId ($a_obj_id, $a_import_id)
 write import id to db (static)
 _lookupType ($a_id, $a_reference=false)
 lookup object type
 _isInTrash ($a_ref_id)
 checks wether object is in trash
 _hasUntrashedReference ($a_obj_id)
 checks wether an object has at least one reference that is not in trash
 _lookupObjectId ($a_ref_id)
 lookup object id
 _getObjectsDataForType ($a_type, $a_omit_trash=false)
 get all objects of a certain type
 putInTree ($a_parent_ref)
 maybe this method should be in tree object!?
 setPermissions ($a_parent_ref)
 set permissions of object
 countReferences ()
 count references of object
 createRoleFolder ()
 creates a local role folder
 setRegisterMode ($a_bool)
 isUserRegistered ($a_user_id=0)
 requireRegistration ()
 getXMLZip ()
 getHTMLDirectory ()
 appendCopyInfo ($a_target_id, $a_copy_id)
 Prepend Copy info if object with same name exists in that container.
 cloneDependencies ($a_target_id, $a_copy_id)
 Clone object dependencies.
 cloneMetaData ($target_obj)
 Copy meta data.

Static Public Member Functions

static _updateQuestionCount ($object_id)
 Updates the number of available questions for a question pool in the database.
- Static Public Member Functions inherited from ilObject
static _getIdsForTitle ($title, $type= '')
 _exists ($a_id, $a_reference=false)
 checks if an object exists in object_data
static _getObjectsByType ($a_obj_type="")
 Get objects by type.
static _prepareCloneSelection ($a_ref_ids, $new_type)
 Prepare copy wizard object selection.
static _getIcon ($a_obj_id="", $a_size="big", $a_type="", $a_offline=false)

Data Fields

 $online
- Data Fields inherited from ilObject
 $ilias
 $lng
 $id
 $ref_id
 $type
 $title
 $untranslatedTitle
 $desc
 $long_desc
 $owner
 $create_date
 $last_update
 $import_id
 $register = false
 $referenced
 $objectList
 $max_title
 $max_desc
 $add_dots
 $obj_data_record
 object_data record

Detailed Description

Definition at line 36 of file class.ilObjQuestionPool.php.

Member Function Documentation

ilObjQuestionPool::_createImportDirectory ( )

creates data directory for import files (data_dir/qpl_data/qpl_<id>/import, depending on data directory that is set in ILIAS setup/ini)

Definition at line 966 of file class.ilObjQuestionPool.php.

References ilObject\$ilias, ilUtil\getDataDir(), and ilUtil\makeDir().

Referenced by ilObjQuestionPoolGUI\uploadQplObject().

{
global $ilias;
include_once "./Services/Utilities/classes/class.ilUtil.php";
$qpl_data_dir = ilUtil::getDataDir()."/qpl_data";
ilUtil::makeDir($qpl_data_dir);
if(!is_writable($qpl_data_dir))
{
$ilias->raiseError("Questionpool Data Directory (".$qpl_data_dir
.") not writeable.",$ilias->error_obj->FATAL);
}
// create questionpool directory (data_dir/qpl_data/qpl_import)
$qpl_dir = $qpl_data_dir."/qpl_import";
ilUtil::makeDir($qpl_dir);
if(!@is_dir($qpl_dir))
{
$ilias->raiseError("Creation of Questionpool Directory failed.",$ilias->error_obj->FATAL);
}
}

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& ilObjQuestionPool::_getAvailableQuestionpools (   $use_object_id = FALSE,
  $equal_points = FALSE,
  $could_be_offline = FALSE,
  $showPath = FALSE,
  $with_questioncount = FALSE,
  $permission = "read" 
)

Returns the available question pools for the active user.

Returns the available question pools for the active user

Returns
array The available question pools public

Definition at line 1545 of file class.ilObjQuestionPool.php.

References $result, ilObject\$title, ilUtil\_getObjectsByOperations(), _hasEqualPoints(), and ilObject\_prepareCloneSelection().

Referenced by ilObjTest\getAvailableQuestionpools(), ilObjTest\getQuestionsTable(), and ilObjTest\randomSelectQuestions().

{
global $ilUser;
global $ilDB;
$result_array = array();
$permission = (strlen($permission) == 0) ? "read" : $permission;
$qpls = ilUtil::_getObjectsByOperations("qpl", $permission, $ilUser->getId(), -1);
$titles = ilObject::_prepareCloneSelection($qpls, "qpl");
if (count($qpls))
{
$query = "";
if ($could_be_offline)
{
$query = sprintf("SELECT object_data.*, object_reference.ref_id, qpl_questionpool.questioncount FROM object_data, object_reference, qpl_questionpool WHERE object_data.obj_id = object_reference.obj_id AND object_reference.ref_id IN ('%s') AND qpl_questionpool.obj_fi = object_data.obj_id ORDER BY object_data.title",
implode("','", $qpls)
);
}
else
{
$query = sprintf("SELECT object_data.*, object_reference.ref_id, qpl_questionpool.questioncount FROM object_data, object_reference, qpl_questionpool WHERE object_data.obj_id = object_reference.obj_id AND object_reference.ref_id IN ('%s') AND qpl_questionpool.online = '1' AND qpl_questionpool.obj_fi = object_data.obj_id ORDER BY object_data.title",
implode("','", $qpls)
);
}
$result = $ilDB->query($query);
while ($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
$add = TRUE;
if ($equal_points)
{
if (!ilObjQuestionPool::_hasEqualPoints($row["obj_id"]))
{
$add = FALSE;
}
}
if ($add)
{
$title = (($showPath) ? $titles[$row["ref_id"]] : $row["title"]);
if ($with_questioncount)
{
$title .= " [" . $row["questioncount"] . " " . ($row["questioncount"] == 1 ? $this->lng->txt("ass_question") : $this->lng->txt("assQuestions")) . "]";
}
if ($use_object_id)
{
$result_array[$row["obj_id"]] = array("title" => $title, "count" => $row["questioncount"]);
}
else
{
$result_array[$row["ref_id"]] = array("title" => $title, "count" => $row["questioncount"]);
}
}
}
}
return $result_array;
}

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ilObjQuestionPool::_getFullPathToQpl (   $ref_id)

Retrieves the full path to a question pool with a given reference id.

Retrieves the full path to a question pool with a given reference id

Returns
string The full path to the question pool including the locator public

Definition at line 1514 of file class.ilObjQuestionPool.php.

References ilObject\$ref_id, ilStr\strLen(), and ilStr\subStr().

Referenced by ilObjQuestionPoolGUI\printObject().

{
global $tree;
$path = $tree->getPathFull($ref_id);
$items = array();
$counter = 0;
foreach ($path as $item)
{
if (($counter > 0) && ($counter < count($path)-1))
{
array_push($items, $item["title"]);
}
$counter++;
}
$fullpath = join(" > ", $items);
include_once "./Services/Utilities/classes/class.ilStr.php";
if (strlen($fullpath) > 60)
{
$fullpath = ilStr::subStr($fullpath, 0, 30) . "..." . ilStr::subStr($fullpath, ilStr::strLen($fullpath)-30, 30);
}
return $fullpath;
}

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ilObjQuestionPool::_getImportDirectory ( )

get import directory of lm

Definition at line 992 of file class.ilObjQuestionPool.php.

References ilUtil\getDataDir().

Referenced by assFlashQuestionImport\fromXML(), assTextSubsetImport\fromXML(), assClozeTestImport\fromXML(), assSingleChoiceImport\fromXML(), assOrderingQuestionImport\fromXML(), assMultipleChoiceImport\fromXML(), assNumericImport\fromXML(), assMatchingQuestionImport\fromXML(), assTextQuestionImport\fromXML(), assImagemapQuestionImport\fromXML(), assJavaAppletImport\fromXML(), ilObjQuestionPoolGUI\importVerifiedFileObject(), and ilObjQuestionPoolGUI\uploadQplObject().

{
include_once "./Services/Utilities/classes/class.ilUtil.php";
$import_dir = ilUtil::getDataDir()."/qpl_data/qpl_import";
if(@is_dir($import_dir))
{
return $import_dir;
}
else
{
return false;
}
}

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ilObjQuestionPool::_getQuestionCount (   $questionpool_id,
  $complete_questions_only = FALSE 
)

Returns the number of questions in a question pool.

Returns the number of questions in a question pool

Parameters
integer$questonpool_idObject id of the questionpool to examine
boolean$complete_questions_onlyIf set to TRUE, returns only the number of complete questions in the questionpool. Default is FALSE
Returns
integer The number of questions in the questionpool object public

Definition at line 1133 of file class.ilObjQuestionPool.php.

References $result.

Referenced by _updateQuestionCount().

{
global $ilDB;
$query = sprintf("SELECT COUNT(question_id) AS question_count FROM qpl_questions WHERE obj_fi = %s AND ISNULL(original_id)",
$ilDB->quote($questionpool_id . "")
);
if ($complete_questions_only)
{
$query .= " AND complete = '1'";
}
$result = $ilDB->query($query);
$row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
return $row["question_count"];
}

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& ilObjQuestionPool::_getQuestionTypes (   $all_tags = FALSE)

Definition at line 1652 of file class.ilObjQuestionPool.php.

References $ilLog, ilObject\$lng, $result, ilObjAssessmentFolder\_getForbiddenQuestionTypes(), ilPlugin\getPluginObject(), and IL_COMP_MODULE.

Referenced by getQuestionTypes(), ilObjTestGUI\questionBrowser(), ilObjTestGUI\questionsObject(), ilObjAssessmentFolderGUI\saveSettingsObject(), and ilObjAssessmentFolderGUI\settingsObject().

{
global $ilDB;
global $lng;
include_once "./Modules/Test/classes/class.ilObjAssessmentFolder.php";
$forbidden_types = ilObjAssessmentFolder::_getForbiddenQuestionTypes();
$lng->loadLanguageModule("assessment");
$query = "SELECT * FROM qpl_question_type";
$result = $ilDB->query($query);
$types = array();
while ($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
if ($all_tags || (!in_array($row["question_type_id"], $forbidden_types)))
{
global $ilLog;
if ($row["plugin"] == 0)
{
if (strcmp($row["type_tag"], "assFlashQuestion") != 0)
{
$types[$lng->txt($row["type_tag"])] = $row;
}
}
else
{
global $ilPluginAdmin;
$pl_names = $ilPluginAdmin->getActivePluginsForSlot(IL_COMP_MODULE, "TestQuestionPool", "qst");
foreach ($pl_names as $pl_name)
{
$pl = ilPlugin::getPluginObject(IL_COMP_MODULE, "TestQuestionPool", "qst", $pl_name);
if (strcmp($pl->getQuestionType(), $row["type_tag"]) == 0)
{
$types[$pl->getQuestionTypeTranslation()] = $row;
}
}
}
}
}
ksort($types);
return $types;
}

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ilObjQuestionPool::_hasEqualPoints (   $a_obj_id,
  $is_reference = FALSE 
)

Checks a question pool for questions with the same maximum points.

Checks a question pool for questions with the same maximum points

Parameters
integer$a_obj_idObject id of the question pool private

Definition at line 1210 of file class.ilObjQuestionPool.php.

References $result.

Referenced by _getAvailableQuestionpools().

{
global $ilDB;
if ($is_reference)
{
$query = sprintf("SELECT count(DISTINCT qpl_questions.points) AS equal_points FROM qpl_questions, object_reference WHERE object_reference.ref_id = %s AND object_reference.obj_id = qpl_questions.obj_fi AND qpl_questions.original_id IS NULL",
$ilDB->quote($a_obj_id . "")
);
}
else
{
$query = sprintf("SELECT count(DISTINCT points) AS equal_points FROM qpl_questions WHERE obj_fi = %s AND qpl_questions.original_id IS NULL",
$ilDB->quote($a_obj_id . "")
);
}
$result = $ilDB->query($query);
if ($result->numRows() == 1)
{
$row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
if ($row["equal_points"] == 1)
{
return 1;
}
else
{
return 0;
}
}
return 0;
}

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ilObjQuestionPool::_isWriteable (   $object_id,
  $user_id 
)

Returns true, if the question pool is writeable by a given user.

Returns true, if the question pool is writeable by a given user

Parameters
integer$object_idThe object id of the question pool
integer$user_idThe database id of the user public

Definition at line 1344 of file class.ilObjQuestionPool.php.

References $result, and ilObject\_hasUntrashedReference().

{
global $rbacsystem;
global $ilDB;
$result_array = array();
$query = sprintf("SELECT object_data.*, object_data.obj_id, object_reference.ref_id FROM object_data, object_reference WHERE object_data.obj_id = object_reference.obj_id AND object_data.obj_id = %s",
$ilDB->quote($object_id . "")
);
$result = $ilDB->query($query);
while ($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
include_once "./classes/class.ilObject.php";
if ($rbacsystem->checkAccess("write", $row["ref_id"]) && (ilObject::_hasUntrashedReference($row["obj_id"])))
{
return true;
}
}
return false;
}

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ilObjQuestionPool::_lookupOnline (   $a_obj_id,
  $is_reference = FALSE 
)

Definition at line 1177 of file class.ilObjQuestionPool.php.

References $result.

Referenced by ilObjQuestionPoolListGUI\getProperties().

{
global $ilDB;
if ($is_reference)
{
$query = sprintf("SELECT qpl_questionpool.online FROM qpl_questionpool,object_reference WHERE object_reference.ref_id = %s AND object_reference.obj_id = qpl_questionpool.obj_fi",
$ilDB->quote($a_obj_id . "")
);
}
else
{
$query = sprintf("SELECT online FROM qpl_questionpool WHERE obj_fi = %s",
$ilDB->quote($a_obj_id . "")
);
}
$result = $ilDB->query($query);
if ($result->numRows() == 1)
{
$row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
return $row["online"];
}
return 0;
}

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static ilObjQuestionPool::_updateQuestionCount (   $object_id)
static

Updates the number of available questions for a question pool in the database.

Updates the number of available questions for a question pool in the database

Parameters
integer$object_idObject id of the questionpool to examine public

Definition at line 1719 of file class.ilObjQuestionPool.php.

References $result, and _getQuestionCount().

Referenced by assQuestion\delete(), duplicateQuestion(), pasteFromClipboard(), and assQuestion\saveToDb().

{
global $ilDB;
$query = sprintf("UPDATE qpl_questionpool SET questioncount = %s WHERE obj_fi = %s",
$ilDB->quote(ilObjQuestionPool::_getQuestionCount($object_id, TRUE)),
$ilDB->quote($object_id)
);
$result = $ilDB->query($query);
}

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ilObjQuestionPool::cloneObject (   $a_target_id,
  $a_copy_id = 0 
)

Creates a 1:1 copy of the object and places the copy in a given repository.

Creates a 1:1 copy of the object and places the copy in a given repository

public

Reimplemented from ilObject.

Definition at line 1624 of file class.ilObjQuestionPool.php.

References $ilLog, ilObject\getId(), getOnline(), getQplQuestions(), and ilObject\getType().

{
global $ilLog;
$newObj = parent::cloneObject($a_target_id,$a_copy_id);
$newObj->setOnline($this->getOnline());
$newObj->saveToDb();
// clone the questions in the question pool
$questions =& $this->getQplQuestions();
foreach ($questions as $question_id)
{
$newObj->copyQuestion($question_id, $newObj->getId());
}
// clone meta data
include_once "./Services/MetaData/classes/class.ilMD.php";
$md = new ilMD($this->getId(),0,$this->getType());
$new_md =& $md->cloneMD($newObj->getId(),0,$newObj->getType());
// update the metadata with the new title of the question pool
$newObj->updateMetaData();
return $newObj;
}

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ilObjQuestionPool::copyQuestion (   $question_id,
  $questionpool_to 
)

Copies a question into another question pool.

Copies a question into another question pool

Parameters
integer$question_idDatabase id of the question
integer$questionpool_toDatabase id of the target questionpool public

Definition at line 507 of file class.ilObjQuestionPool.php.

References createQuestion(), duplicateQuestion(), and ilObject\getId().

Referenced by pasteFromClipboard().

{
$question_gui =& $this->createQuestion("", $question_id);
if ($question_gui->object->getObjId() == $questionpool_to)
{
// the question is copied into the same question pool
$this->duplicateQuestion($question_id);
}
else
{
// the question is copied into another question pool
$newtitle = $question_gui->object->getTitle();
if ($question_gui->object->questionTitleExists($this->getId(), $question_gui->object->getTitle()))
{
$counter = 2;
while ($question_gui->object->questionTitleExists($this->getId(), $question_gui->object->getTitle() . " ($counter)"))
{
$counter++;
}
$newtitle = $question_gui->object->getTitle() . " ($counter)";
}
$question_gui->object->copyObject($this->getId(), $newtitle);
}
}

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ilObjQuestionPool::copyToClipboard (   $question_id)

Copies a question to the clipboard.

Copies a question to the clipboard

Parameters
integer$question_idObject id of the question private

Definition at line 1309 of file class.ilObjQuestionPool.php.

References $_SESSION.

{
if (!array_key_exists("qpl_clipboard", $_SESSION))
{
$_SESSION["qpl_clipboard"] = array();
}
$_SESSION["qpl_clipboard"][$question_id] = array("question_id" => $question_id, "action" => "copy");
}
ilObjQuestionPool::create (   $a_upload = false)

create questionpool object

Definition at line 61 of file class.ilObjQuestionPool.php.

References ilObject\create(), and ilObject\createMetaData().

{
parent::create();
// meta data will be created by
// import parser
if (!$a_upload)
{
$this->createMetaData();
}
}

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ilObjQuestionPool::createExportDirectory ( )

creates data directory for export files (data_dir/qpl_data/qpl_<id>/export, depending on data directory that is set in ILIAS setup/ini)

Definition at line 886 of file class.ilObjQuestionPool.php.

References ilUtil\getDataDir(), ilObject\getId(), and ilUtil\makeDir().

{
include_once "./Services/Utilities/classes/class.ilUtil.php";
$qpl_data_dir = ilUtil::getDataDir()."/qpl_data";
ilUtil::makeDir($qpl_data_dir);
if(!is_writable($qpl_data_dir))
{
$this->ilias->raiseError("Questionpool Data Directory (".$qpl_data_dir
.") not writeable.",$this->ilias->error_obj->FATAL);
}
// create learning module directory (data_dir/lm_data/lm_<id>)
$qpl_dir = $qpl_data_dir."/qpl_".$this->getId();
ilUtil::makeDir($qpl_dir);
if(!@is_dir($qpl_dir))
{
$this->ilias->raiseError("Creation of Questionpool Directory failed.",$this->ilias->error_obj->FATAL);
}
// create Export subdirectory (data_dir/lm_data/lm_<id>/Export)
$export_dir = $qpl_dir."/export";
ilUtil::makeDir($export_dir);
if(!@is_dir($export_dir))
{
$this->ilias->raiseError("Creation of Export Directory failed.",$this->ilias->error_obj->FATAL);
}
}

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& ilObjQuestionPool::createQuestion (   $question_type,
  $question_id = -1 
)

Definition at line 462 of file class.ilObjQuestionPool.php.

References assQuestion\_includeClass(), and assQuestion\_instanciateQuestionGUI().

Referenced by copyQuestion(), duplicateQuestion(), getDeleteableQuestionDetails(), and toXML().

{
include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
if ($question_id > 0) return assQuestion::_instanciateQuestionGUI($question_id);
assQuestion::_includeClass($question_type, 1);
$question_type_gui = $question_type . "GUI";
$question_gui =& new $question_type_gui();
return $question_gui;
}

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ilObjQuestionPool::createReference ( )

Creates a database reference id for the object.

Creates a database reference id for the object (saves the object to the database and creates a reference id in the database)

public

Reimplemented from ilObject.

Definition at line 81 of file class.ilObjQuestionPool.php.

References $result, and saveToDb().

{
$result = parent::createReference();
$this->saveToDb();
return $result;
}

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ilObjQuestionPool::delete ( )

delete object and all related data

public

Returns
boolean true if all object data were removed; false if only a references were removed

Reimplemented from ilObject.

Definition at line 142 of file class.ilObjQuestionPool.php.

References ilObject\deleteMetaData(), and deleteQuestionpool().

{
/* $questions =& $this->getAllQuestions();
$used_questions = 0;
include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
foreach ($questions as $question_id)
{
if (assQuestion::_isUsedInRandomTest($question_id))
{
$used_questions++;
}
}
if ($used_questions)
{
return false;
}
*/
// always call parent delete function first!!
if (!parent::delete())
{
return false;
}
// delete meta data
$this->deleteMetaData();
//put here your module specific stuff
$this->deleteQuestionpool();
return true;
}

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ilObjQuestionPool::deleteQuestion (   $question_id)

Deletes a question from the question pool.

Deletes a question from the question pool

Parameters
integer$question_idThe database id of the question private

Definition at line 298 of file class.ilObjQuestionPool.php.

References ilObjTest\_instanciateQuestion().

Referenced by deleteQuestionpool().

{
include_once "./Modules/Test/classes/class.ilObjTest.php";
$question =& ilObjTest::_instanciateQuestion($question_id);
$question->delete($question_id);
}

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ilObjQuestionPool::deleteQuestionpool ( )

Definition at line 175 of file class.ilObjQuestionPool.php.

References ilUtil\delDir(), deleteQuestion(), getAllQuestions(), ilUtil\getDataDir(), and ilObject\getId().

Referenced by delete().

{
$questions =& $this->getAllQuestions();
if (count($questions))
{
foreach ($questions as $question_id)
{
$this->deleteQuestion($question_id);
}
}
// delete export files
include_once "./Services/Utilities/classes/class.ilUtil.php";
$qpl_data_dir = ilUtil::getDataDir()."/qpl_data";
$directory = $qpl_data_dir."/qpl_".$this->getId();
if (is_dir($directory))
{
include_once "./Services/Utilities/classes/class.ilUtil.php";
ilUtil::delDir($directory);
}
}

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ilObjQuestionPool::duplicateQuestion (   $question_id)

Duplicates a question for a questionpool.

Duplicates a question for a questionpool

Parameters
integer$question_idThe database id of the question public

Definition at line 480 of file class.ilObjQuestionPool.php.

References _updateQuestionCount(), createQuestion(), and ilObject\getId().

Referenced by copyQuestion().

{
$question =& $this->createQuestion("", $question_id);
$newtitle = $question->object->getTitle();
if ($question->object->questionTitleExists($this->getId(), $question->object->getTitle()))
{
$counter = 2;
while ($question->object->questionTitleExists($this->getId(), $question->object->getTitle() . " ($counter)"))
{
$counter++;
}
$newtitle = $question->object->getTitle() . " ($counter)";
}
$question->object->duplicate(false, $newtitle);
// update question count of question pool
ilObjQuestionPool::_updateQuestionCount($this->getId());
}

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ilObjQuestionPool::exportFileItems (   $a_target_dir,
&  $expLog 
)

export files of file itmes

Definition at line 868 of file class.ilObjQuestionPool.php.

Referenced by exportPagesXML().

{
include_once("./Modules/File/classes/class.ilObjFile.php");
foreach ($this->file_ids as $file_id)
{
$expLog->write(date("[y-m-d H:i:s] ")."File Item ".$file_id);
$file_obj = new ilObjFile($file_id, false);
$file_obj->export($a_target_dir);
unset($file_obj);
}
}

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ilObjQuestionPool::exportPagesXML ( &  $a_xml_writer,
  $a_inst,
  $a_target_dir,
&  $expLog,
  $questions 
)

export pages of test to xml (see ilias_co.dtd)

Parameters
object$a_xml_writerilXmlWriter object that receives the xml data

Definition at line 713 of file class.ilObjQuestionPool.php.

References $ilBench, exportFileItems(), exportXMLMediaObjects(), exportXMLMetaData(), and exportXMLPageObjects().

{
global $ilBench;
$this->mob_ids = array();
$this->file_ids = array();
$attrs = array();
$attrs["Type"] = "Questionpool_Test";
$a_xml_writer->xmlStartTag("ContentObject", $attrs);
// MetaData
$this->exportXMLMetaData($a_xml_writer);
// PageObjects
$expLog->write(date("[y-m-d H:i:s] ")."Start Export Page Objects");
$ilBench->start("ContentObjectExport", "exportPageObjects");
$this->exportXMLPageObjects($a_xml_writer, $a_inst, $expLog, $questions);
$ilBench->stop("ContentObjectExport", "exportPageObjects");
$expLog->write(date("[y-m-d H:i:s] ")."Finished Export Page Objects");
// MediaObjects
$expLog->write(date("[y-m-d H:i:s] ")."Start Export Media Objects");
$ilBench->start("ContentObjectExport", "exportMediaObjects");
$this->exportXMLMediaObjects($a_xml_writer, $a_inst, $a_target_dir, $expLog);
$ilBench->stop("ContentObjectExport", "exportMediaObjects");
$expLog->write(date("[y-m-d H:i:s] ")."Finished Export Media Objects");
// FileItems
$expLog->write(date("[y-m-d H:i:s] ")."Start Export File Items");
$ilBench->start("ContentObjectExport", "exportFileItems");
$this->exportFileItems($a_target_dir, $expLog);
$ilBench->stop("ContentObjectExport", "exportFileItems");
$expLog->write(date("[y-m-d H:i:s] ")."Finished Export File Items");
$a_xml_writer->xmlEndTag("ContentObject");
}

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ilObjQuestionPool::exportXMLMediaObjects ( &  $a_xml_writer,
  $a_inst,
  $a_target_dir,
&  $expLog 
)

export media objects to xml (see ilias_co.dtd)

Parameters
object$a_xml_writerilXmlWriter object that receives the xml data

Definition at line 847 of file class.ilObjQuestionPool.php.

References ilObjMediaObject\_exists().

Referenced by exportPagesXML().

{
include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
foreach ($this->mob_ids as $mob_id)
{
$expLog->write(date("[y-m-d H:i:s] ")."Media Object ".$mob_id);
if (ilObjMediaObject::_exists($mob_id))
{
$media_obj = new ilObjMediaObject($mob_id);
$media_obj->exportXML($a_xml_writer, $a_inst);
$media_obj->exportFiles($a_target_dir);
unset($media_obj);
}
}
}

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ilObjQuestionPool::exportXMLMetaData ( &  $a_xml_writer)

export content objects meta data to xml (see ilias_co.dtd)

Parameters
object$a_xml_writerilXmlWriter object that receives the xml data

Definition at line 757 of file class.ilObjQuestionPool.php.

References ilObject\getId(), and ilObject\getType().

Referenced by exportPagesXML().

{
include_once("Services/MetaData/classes/class.ilMD2XML.php");
$md2xml = new ilMD2XML($this->getId(), 0, $this->getType());
$md2xml->setExportMode(true);
$md2xml->startExport();
$a_xml_writer->appendXML($md2xml->getXML());
}

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ilObjQuestionPool::exportXMLPageObjects ( &  $a_xml_writer,
  $a_inst,
&  $expLog,
  $questions 
)

export page objects to xml (see ilias_co.dtd)

Parameters
object$a_xml_writerilXmlWriter object that receives the xml data

Definition at line 784 of file class.ilObjQuestionPool.php.

References $ilBench.

Referenced by exportPagesXML().

{
global $ilBench;
include_once "./Modules/LearningModule/classes/class.ilLMPageObject.php";
foreach ($questions as $question_id)
{
$ilBench->start("ContentObjectExport", "exportPageObject");
$expLog->write(date("[y-m-d H:i:s] ")."Page Object ".$question_id);
$attrs = array();
$a_xml_writer->xmlStartTag("PageObject", $attrs);
// export xml to writer object
$ilBench->start("ContentObjectExport", "exportPageObject_XML");
$page_object = new ilPageObject("qpl", $question_id);
$page_object->buildDom();
$page_object->insertInstIntoIDs($a_inst);
$mob_ids = $page_object->collectMediaObjects(false);
$file_ids = $page_object->collectFileItems();
$xml = $page_object->getXMLFromDom(false, false, false, "", true);
$xml = str_replace("&","&amp;", $xml);
$a_xml_writer->appendXML($xml);
$page_object->freeDom();
unset ($page_object);
$ilBench->stop("ContentObjectExport", "exportPageObject_XML");
// collect media objects
$ilBench->start("ContentObjectExport", "exportPageObject_CollectMedia");
//$mob_ids = $page_obj->getMediaObjectIDs();
foreach($mob_ids as $mob_id)
{
$this->mob_ids[$mob_id] = $mob_id;
}
$ilBench->stop("ContentObjectExport", "exportPageObject_CollectMedia");
// collect all file items
$ilBench->start("ContentObjectExport", "exportPageObject_CollectFileItems");
//$file_ids = $page_obj->getFileItemIds();
foreach($file_ids as $file_id)
{
$this->file_ids[$file_id] = $file_id;
}
$ilBench->stop("ContentObjectExport", "exportPageObject_CollectFileItems");
$a_xml_writer->xmlEndTag("PageObject");
//unset($page_obj);
$ilBench->stop("ContentObjectExport", "exportPageObject");
}
}

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& ilObjQuestionPool::getAllQuestionIds ( )

Definition at line 1048 of file class.ilObjQuestionPool.php.

References isPluginActive().

{
global $ilDB;
$query = sprintf("SELECT question_id, qpl_question_type.type_tag, qpl_question_type.plugin FROM qpl_questions, qpl_question_type WHERE ISNULL(original_id) AND obj_fi = %s AND complete = %s AND qpl_questions.question_type_fi = qpl_question_type.question_type_id",
$ilDB->quote($this->getId()),
$ilDB->quote("1")
);
$query_result = $ilDB->query($query);
$questions = array();
if ($query_result->numRows())
{
while ($row = $query_result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
if ($row["plugin"])
{
if ($this->isPluginActive($row["type_tag"]))
{
array_push($questions, $row["question_id"]);
}
}
else
{
array_push($questions, $row["question_id"]);
}
}
}
return $questions;
}

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& ilObjQuestionPool::getAllQuestions ( )

Retrieve an array containing all question ids of the questionpool.

Retrieve an array containing all question ids of the questionpool

Returns
array An array containing all question ids of the questionpool

Definition at line 1030 of file class.ilObjQuestionPool.php.

References $result.

Referenced by deleteQuestionpool().

{
global $ilDB;
$query = sprintf("SELECT question_id FROM qpl_questions WHERE obj_fi = %s AND original_id IS NULL",
$ilDB->quote($this->getId())
);
$result = $ilDB->query($query);
$questions = array();
while ($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
array_push($questions, $row["question_id"]);
}
return $questions;
}

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& ilObjQuestionPool::getDeleteableQuestionDetails (   $question_ids)

Returns an array containing the qpl_question and qpl_question_type fields of deleteable questions for an array of question ids.

Returns an array containing the qpl_question and qpl_question_type fields of deleteable questions for an array of question ids

Parameters
array$question_idsAn array containing the question ids
Returns
array An array containing the details of the requested questions public

Definition at line 1404 of file class.ilObjQuestionPool.php.

References $result, assQuestion\_isUsedInRandomTest(), and createQuestion().

{
global $ilDB;
$result = array();
$whereclause = join($question_ids, " OR qpl_questions.question_id = ");
$whereclause = " AND (qpl_questions.question_id = " . $whereclause . ")";
$query = "SELECT qpl_questions.*, qpl_question_type.type_tag FROM qpl_questions, qpl_question_type WHERE qpl_questions.question_type_fi = qpl_question_type.question_type_id$whereclause ORDER BY qpl_questions.title";
$query_result = $ilDB->query($query);
if ($query_result->numRows())
{
include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
while ($row = $query_result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
if (!assQuestion::_isUsedInRandomTest($row["question_id"]))
{
array_push($result, $row);
}
else
{
// the question was used in a random test prior to ILIAS 3.7 so it was inserted
// as a reference to the original question pool object and not as a copy. To allow
// the deletion of the question pool object, a copy must be created and all database references
// of the original question must changed with the reference of the copy
// 1. Create a copy of the original question
$question =& $this->createQuestion("", $row["question_id"]);
$duplicate_id = $question->object->duplicate(true);
if ($duplicate_id > 0)
{
// 2. replace the question id in the solutions
$query = sprintf("UPDATE tst_solutions SET question_fi = %s WHERE question_fi = %s",
$ilDB->quote($duplicate_id),
$ilDB->quote($row["question_id"])
);
$ilDB->query($query);
// 3. replace the question id in the question list of random tests
$query = sprintf("UPDATE tst_test_random_question SET question_fi = %s WHERE question_fi = %s",
$ilDB->quote($duplicate_id),
$ilDB->quote($row["question_id"])
);
$ilDB->query($query);
// 4. replace the question id in the test results
$query = sprintf("UPDATE tst_test_result SET question_fi = %s WHERE question_fi = %s",
$ilDB->quote($duplicate_id),
$ilDB->quote($row["question_id"])
);
$ilDB->query($query);
// 5. replace the question id in the test&assessment log
$query = sprintf("UPDATE ass_log SET question_fi = %s WHERE question_fi = %s",
$ilDB->quote($duplicate_id),
$ilDB->quote($row["question_id"])
);
$ilDB->query($query);
// 6. The original question can be deleted, so add it to the list of questions
array_push($result, $row);
}
}
}
}
return $result;
}

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ilObjQuestionPool::getDescription ( )

get description of content object

Returns
string description

Reimplemented from ilObject.

Definition at line 409 of file class.ilObjQuestionPool.php.

{
return parent::getDescription();
}
ilObjQuestionPool::getExportDirectory ( )

get export directory of questionpool

Definition at line 916 of file class.ilObjQuestionPool.php.

References ilUtil\getDataDir().

{
include_once "./Services/Utilities/classes/class.ilUtil.php";
$export_dir = ilUtil::getDataDir()."/qpl_data"."/qpl_".$this->getId()."/export";
return $export_dir;
}

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ilObjQuestionPool::getExportFiles (   $dir)

get export files

Definition at line 926 of file class.ilObjQuestionPool.php.

References $dir, and $file.

{
// quit if import dir not available
if (!@is_dir($dir) or
!is_writeable($dir))
{
return array();
}
// open directory
$dir = dir($dir);
// initialize array
$file = array();
// get files and save the in the array
while ($entry = $dir->read())
{
if ($entry != "." and
$entry != ".." and
(substr($entry, -4) == ".zip" or substr($entry, -4) == ".xls") and
ereg("^[0-9]{10}_{2}[0-9]+_{2}(qpl__)*[0-9]+\.(zip|xls)\$", $entry))
{
$file[] = $entry;
}
}
// close import directory
$dir->close();
// sort files
sort ($file);
reset ($file);
return $file;
}
ilObjQuestionPool::getImportDirectory ( )

get import directory of lm

Definition at line 1009 of file class.ilObjQuestionPool.php.

References ilUtil\getDataDir().

{
include_once "./Services/Utilities/classes/class.ilUtil.php";
$import_dir = ilUtil::getDataDir()."/qpl_data/qpl_import";
if(@is_dir($import_dir))
{
return $import_dir;
}
else
{
return false;
}
}

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ilObjQuestionPool::getImportMapping ( )

get array of (two) new created questions for import id

Definition at line 1082 of file class.ilObjQuestionPool.php.

{
if (!is_array($this->import_mapping))
{
return array();
}
else
{
return $this->import_mapping;
}
}
ilObjQuestionPool::getOnline ( )

Definition at line 1171 of file class.ilObjQuestionPool.php.

References $online.

Referenced by cloneObject().

{
if (strcmp($this->online, "") == 0) $this->online = "0";
return $this->online;
}

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& ilObjQuestionPool::getPrintviewQuestions (   $sort)

Calculates the data for the print view of the questionpool.

Calculates the data for the print view of the questionpool

public

Definition at line 657 of file class.ilObjQuestionPool.php.

References ilObject\getId(), and isPluginActive().

{
global $ilDB;
// build sort order for sql query
$order = "";
switch($sort)
{
case "title":
$order = " ORDER BY title";
break;
case "comment":
$order = " ORDER BY comment,title";
break;
case "type":
$order = " ORDER BY question_type_id,title";
break;
case "author":
$order = " ORDER BY author,title";
break;
case "created":
$order = " ORDER BY created,title";
break;
case "updated":
$order = " ORDER BY timestamp14,title";
break;
}
$query = "SELECT qpl_questions.*, qpl_questions.TIMESTAMP + 0 AS timestamp14, qpl_question_type.type_tag, qpl_question_type.plugin FROM qpl_questions, qpl_question_type WHERE ISNULL(qpl_questions.original_id) AND qpl_questions.question_type_fi = qpl_question_type.question_type_id AND qpl_questions.obj_fi = " . $this->getId() . " $order";
$query_result = $ilDB->query($query);
$rows = array();
if ($query_result->numRows())
{
while ($row = $query_result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
if ($row["plugin"])
{
if ($this->isPluginActive($row["type_tag"]))
{
array_push($rows, $row);
}
}
else
{
array_push($rows, $row);
}
}
}
return $rows;
}

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& ilObjQuestionPool::getQplQuestions ( )

Definition at line 1602 of file class.ilObjQuestionPool.php.

References $result.

Referenced by cloneObject().

{
global $ilDB;
$questions = array();
$query = sprintf("SELECT qpl_questions.question_id FROM qpl_questions WHERE ISNULL(qpl_questions.original_id) AND qpl_questions.obj_fi = %s",
$ilDB->quote($this->getId() . "")
);
$result = $ilDB->query($query);
while ($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
array_push($questions, $row["question_id"]);
}
return $questions;
}

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& ilObjQuestionPool::getQuestionDetails (   $question_ids)

Returns an array containing the qpl_question and qpl_question_type fields for an array of question ids.

Returns an array containing the qpl_question and qpl_question_type fields for an array of question ids

Parameters
array$question_idsAn array containing the question ids
Returns
array An array containing the details of the requested questions public

Definition at line 1374 of file class.ilObjQuestionPool.php.

References $result.

{
global $ilDB;
$result = array();
$whereclause = join($question_ids, " OR qpl_questions.question_id = ");
$whereclause = " AND (qpl_questions.question_id = " . $whereclause . ")";
$query = "SELECT qpl_questions.*, qpl_question_type.type_tag FROM qpl_questions, qpl_question_type WHERE qpl_questions.question_type_fi = qpl_question_type.question_type_id$whereclause ORDER BY qpl_questions.title";
$query_result = $ilDB->query($query);
if ($query_result->numRows())
{
while ($row = $query_result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
array_push($result, $row);
}
}
return $result;
}
& ilObjQuestionPool::getQuestionList ( )

Definition at line 1695 of file class.ilObjQuestionPool.php.

References $result.

{
global $ilDB;
$questions = array();
$query = sprintf("SELECT qpl_questions.*, qpl_questions.TIMESTAMP+0 AS timestamp14, qpl_question_type.* FROM qpl_questions, qpl_question_type WHERE ISNULL(qpl_questions.original_id) AND qpl_questions.obj_fi = %s AND qpl_questions.question_type_fi = qpl_question_type.question_type_id",
$ilDB->quote($this->getId() . "")
);
$result = $ilDB->query($query);
while ($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
array_push($questions, $row);
}
return $questions;
}
ilObjQuestionPool::getQuestionsTable (   $sort,
  $sortorder,
  $filter_text,
  $sel_filter_type,
  $startrow = 0 
)

Calculates the data for the output of the questionpool.

Calculates the data for the output of the questionpool

public

Definition at line 539 of file class.ilObjQuestionPool.php.

References ilObject\getId(), ilUtil\getImagePath(), and isPluginActive().

{
global $ilUser;
global $ilDB;
$where = "";
if (strlen($filter_text) > 0)
{
switch($sel_filter_type)
{
case "title":
$where = " AND qpl_questions.title LIKE " . $ilDB->quote("%" . $filter_text . "%");
break;
case "comment":
$where = " AND qpl_questions.comment LIKE " . $ilDB->quote("%" . $filter_text . "%");
break;
case "author":
$where = " AND qpl_questions.author LIKE " . $ilDB->quote("%" . $filter_text . "%");
break;
}
}
// build sort order for sql query
$order = "";
$images = array();
include_once "./Services/Utilities/classes/class.ilUtil.php";
switch($sort)
{
case "title":
$order = " ORDER BY title $sortorder";
$images["title"] = " <img src=\"" . ilUtil::getImagePath(strtolower($sortorder) . "_order.gif") . "\" alt=\"" . $this->lng->txt(strtolower($sortorder) . "ending_order")."\" />";
break;
case "comment":
$order = " ORDER BY comment $sortorder";
$images["comment"] = " <img src=\"" . ilUtil::getImagePath(strtolower($sortorder) . "_order.gif") . "\" alt=\"" . $this->lng->txt(strtolower($sortorder) . "ending_order")."\" />";
break;
case "type":
$order = " ORDER BY question_type_id $sortorder";
$images["type"] = " <img src=\"" . ilUtil::getImagePath(strtolower($sortorder) . "_order.gif") . "\" alt=\"" . $this->lng->txt(strtolower($sortorder) . "ending_order")."\" />";
break;
case "author":
$order = " ORDER BY author $sortorder";
$images["author"] = " <img src=\"" . ilUtil::getImagePath(strtolower($sortorder) . "_order.gif") . "\" alt=\"" . $this->lng->txt(strtolower($sortorder) . "ending_order")."\" />";
break;
case "created":
$order = " ORDER BY created $sortorder";
$images["created"] = " <img src=\"" . ilUtil::getImagePath(strtolower($sortorder) . "_order.gif") . "\" alt=\"" . $this->lng->txt(strtolower($sortorder) . "ending_order")."\" />";
break;
case "updated":
$order = " ORDER BY timestamp14 $sortorder";
$images["updated"] = " <img src=\"" . ilUtil::getImagePath(strtolower($sortorder) . "_order.gif") . "\" alt=\"" . $this->lng->txt(strtolower($sortorder) . "ending_order")."\" />";
break;
}
$maxentries = $ilUser->prefs["hits_per_page"];
if ($maxentries < 1)
{
$maxentries = 9999;
}
$query = "SELECT qpl_questions.question_id, qpl_questions.TIMESTAMP + 0 AS timestamp14 FROM qpl_questions, qpl_question_type WHERE ISNULL(qpl_questions.original_id) AND qpl_questions.question_type_fi = qpl_question_type.question_type_id AND qpl_questions.obj_fi = " . $this->getId() . " $where$order$limit";
$query_result = $ilDB->query($query);
$max = $query_result->numRows();
if ($startrow > $max -1)
{
$startrow = $max - ($max % $maxentries);
}
else if ($startrow < 0)
{
$startrow = 0;
}
$limit = " LIMIT $startrow, $maxentries";
$query = "SELECT qpl_questions.*, qpl_questions.TIMESTAMP + 0 AS timestamp14, qpl_question_type.type_tag, qpl_question_type.plugin FROM qpl_questions, qpl_question_type WHERE ISNULL(qpl_questions.original_id) AND qpl_questions.question_type_fi = qpl_question_type.question_type_id AND qpl_questions.obj_fi = " . $this->getId() . " $where$order$limit";
$query_result = $ilDB->query($query);
$rows = array();
if ($query_result->numRows())
{
while ($row = $query_result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
if ($row["plugin"])
{
if ($this->isPluginActive($row["type_tag"]))
{
array_push($rows, $row);
}
}
else
{
array_push($rows, $row);
}
}
}
$nextrow = $startrow + $maxentries;
if ($nextrow > $max - 1)
{
$nextrow = $startrow;
}
$prevrow = $startrow - $maxentries;
if ($prevrow < 0)
{
$prevrow = 0;
}
return array(
"rows" => $rows,
"images" => $images,
"startrow" => $startrow,
"nextrow" => $nextrow,
"prevrow" => $prevrow,
"step" => $maxentries,
"rowcount" => $max
);
}

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ilObjQuestionPool::getQuestiontype (   $question_id)

Returns the question type of a question with a given id.

Returns the question type of a question with a given id

Parameters
integer$question_idThe database id of the question
Returns
string The question type string private

Definition at line 380 of file class.ilObjQuestionPool.php.

References $data, and $result.

{
global $ilDB;
if ($question_id < 1)
{
return;
}
$query = sprintf("SELECT qpl_question_type.type_tag FROM qpl_questions, qpl_question_type WHERE qpl_questions.question_type_fi = qpl_question_type.question_type_id AND qpl_questions.question_id = %s",
$ilDB->quote($question_id));
$result = $ilDB->query($query);
if ($result->numRows() == 1)
{
$data = $result->fetchRow(MDB2_FETCHMODE_OBJECT);
return $data->type_tag;
}
else
{
return;
}
}
& ilObjQuestionPool::getQuestionTypes (   $all_tags = FALSE)

Definition at line 1647 of file class.ilObjQuestionPool.php.

References _getQuestionTypes().

{
return $this->_getQuestionTypes($all_tags);
}

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ilObjQuestionPool::getTitle ( )

get title of glossary object

Returns
string title

Reimplemented from ilObject.

Definition at line 427 of file class.ilObjQuestionPool.php.

Referenced by updateMetaData().

{
return parent::getTitle();
}

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& ilObjQuestionPool::getUsedQuestionDetails (   $question_ids)

Returns an array containing the qpl_question and qpl_question_type fields of questions which are used in a random test for an array of question ids.

Returns an array containing the qpl_question and qpl_question_type fields of questions which are used in a random test for an array of question ids

Parameters
array$question_idsAn array containing the question ids
Returns
array An array containing the details of the requested questions public

Definition at line 1482 of file class.ilObjQuestionPool.php.

References $result, and assQuestion\_isUsedInRandomTest().

{
global $ilDB;
$result = array();
$whereclause = join($question_ids, " OR qpl_questions.question_id = ");
$whereclause = " AND (qpl_questions.question_id = " . $whereclause . ")";
$query = "SELECT qpl_questions.*, qpl_question_type.type_tag FROM qpl_questions, qpl_question_type WHERE qpl_questions.question_type_fi = qpl_question_type.question_type_id$whereclause ORDER BY qpl_questions.title";
$query_result = $ilDB->query($query);
if ($query_result->numRows())
{
include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
while ($row = $query_result->fetchRow(MDB2_FETCHMODE_ASSOC))
{
if (assQuestion::_isUsedInRandomTest($row["question_id"]))
{
array_push($result, $row);
}
}
}
return $result;
}

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ilObjQuestionPool::ilObjQuestionPool (   $a_id = 0,
  $a_call_by_reference = true 
)

Constructor public.

Parameters
integerreference_id or object_id
booleantreat the id as reference_id (true) or object_id (false)

Definition at line 51 of file class.ilObjQuestionPool.php.

References ilObject\ilObject(), and setOnline().

{
$this->type = "qpl";
$this->ilObject($a_id,$a_call_by_reference);
$this->setOnline(0);
}

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ilObjQuestionPool::initDefaultRoles ( )

init default roles settings

If your module does not require any default roles, delete this method (For an example how this method is used, look at ilObjForum)

public

Returns
array object IDs of created local roles.

Reimplemented from ilObject.

Definition at line 207 of file class.ilObjQuestionPool.php.

{
global $rbacadmin;
// create a local role folder
//$rfoldObj = $this->createRoleFolder("Local roles","Role Folder of forum obj_no.".$this->getId());
// create moderator role and assign role to rolefolder...
//$roleObj = $rfoldObj->createRole("Moderator","Moderator of forum obj_no.".$this->getId());
//$roles[] = $roleObj->getId();
//unset($rfoldObj);
//unset($roleObj);
return $roles ? $roles : array();
}
ilObjQuestionPool::isInUse (   $question_id)

Checks whether the question is in use or not.

Checks whether the question is in use or not

Parameters
integer$question_idThe question id of the question to be checked
Returns
boolean The number of datasets which are affected by the use of the query. public

Definition at line 449 of file class.ilObjQuestionPool.php.

References $result.

{
global $ilDB;
$query = sprintf("SELECT COUNT(solution_id) AS solution_count FROM tst_solutions WHERE question_fi = %s",
$ilDB->quote("$question_id"));
$result = $ilDB->query($query);
$row = $result->fetchRow(MDB2_FETCHMODE_OBJECT);
return $row->solution_count;
}
ilObjQuestionPool::isPluginActive (   $a_pname)

Checks wheather or not a question plugin with a given name is active.

Parameters
string$a_pnameThe plugin name public

Definition at line 1735 of file class.ilObjQuestionPool.php.

References IL_COMP_MODULE.

Referenced by getAllQuestionIds(), getPrintviewQuestions(), and getQuestionsTable().

{
global $ilPluginAdmin;
if ($ilPluginAdmin->isActive(IL_COMP_MODULE, "TestQuestionPool", "qst", $a_pname))
{
return TRUE;
}
else
{
return FALSE;
}
}

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ilObjQuestionPool::loadFromDb ( )

Loads a ilObjQuestionpool object from a database.

Loads a ilObjQuestionpool object from a database

public

Definition at line 313 of file class.ilObjQuestionPool.php.

References $result, and setOnline().

Referenced by read().

{
global $ilDB;
$query = sprintf("SELECT * FROM qpl_questionpool WHERE obj_fi = %s",
$ilDB->quote($this->getId() . "")
);
$result = $ilDB->query($query);
if ($result->numRows() == 1)
{
$row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
$this->setOnline($row["online"]);
}
}

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ilObjQuestionPool::modifyExportIdentifier (   $a_tag,
  $a_param,
  $a_value 
)

Definition at line 766 of file class.ilObjQuestionPool.php.

References ilUtil\insertInstIntoID().

{
if ($a_tag == "Identifier" && $a_param == "Entry")
{
include_once "./Services/Utilities/classes/class.ilUtil.php";
$a_value = ilUtil::insertInstIntoID($a_value);
}
return $a_value;
}

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ilObjQuestionPool::moveToClipboard (   $question_id)

Moves a question to the clipboard.

Moves a question to the clipboard

Parameters
integer$question_idObject id of the question private

Definition at line 1326 of file class.ilObjQuestionPool.php.

References $_SESSION.

{
if (!array_key_exists("qpl_clipboard", $_SESSION))
{
$_SESSION["qpl_clipboard"] = array();
}
$_SESSION["qpl_clipboard"][$question_id] = array("question_id" => $question_id, "action" => "move");
}
ilObjQuestionPool::notify (   $a_event,
  $a_ref_id,
  $a_parent_non_rbac_id,
  $a_node_id,
  $a_params = 0 
)

notifys an object about an event occured Based on the event happend, each object may decide how it reacts.

If you are not required to handle any events related to your module, just delete this method. (For an example how this method is used, look at ilObjGroup)

public

Parameters
stringevent
integerreference id of object where the event occured
arraypasses optional parameters if required
Returns
boolean

Reimplemented from ilObject.

Definition at line 237 of file class.ilObjQuestionPool.php.

References $_GET, and ilObject\getType().

{
global $tree;
switch ($a_event)
{
case "link":
//var_dump("<pre>",$a_params,"</pre>");
//echo "Module name ".$this->getRefId()." triggered by link event. Objects linked into target object ref_id: ".$a_ref_id;
//exit;
break;
case "cut":
//echo "Module name ".$this->getRefId()." triggered by cut event. Objects are removed from target object ref_id: ".$a_ref_id;
//exit;
break;
case "copy":
//var_dump("<pre>",$a_params,"</pre>");
//echo "Module name ".$this->getRefId()." triggered by copy event. Objects are copied into target object ref_id: ".$a_ref_id;
//exit;
break;
case "paste":
//echo "Module name ".$this->getRefId()." triggered by paste (cut) event. Objects are pasted into target object ref_id: ".$a_ref_id;
//exit;
break;
case "new":
//echo "Module name ".$this->getRefId()." triggered by paste (new) event. Objects are applied to target object ref_id: ".$a_ref_id;
//exit;
break;
}
// At the beginning of the recursive process it avoids second call of the notify function with the same parameter
if ($a_node_id==$_GET["ref_id"])
{
$parent_obj =& $this->ilias->obj_factory->getInstanceByRefId($a_node_id);
$parent_type = $parent_obj->getType();
if($parent_type == $this->getType())
{
$a_node_id = (int) $tree->getParentId($a_node_id);
}
}
parent::notify($a_event,$a_ref_id,$a_parent_non_rbac_id,$a_node_id,$a_params);
}

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ilObjQuestionPool::pasteFromClipboard ( )

Copies/Moves a question from the clipboard.

Copies/Moves a question from the clipboard

private

Definition at line 1249 of file class.ilObjQuestionPool.php.

References $_SESSION, $result, _updateQuestionCount(), copyQuestion(), ilObject\getId(), and ilUtil\makeDirParents().

{
global $ilDB;
if (array_key_exists("qpl_clipboard", $_SESSION))
{
foreach ($_SESSION["qpl_clipboard"] as $question_object)
{
if (strcmp($question_object["action"], "move") == 0)
{
$query = sprintf("SELECT obj_fi FROM qpl_questions WHERE question_id = %s",
$ilDB->quote($question_object["question_id"])
);
$result = $ilDB->query($query);
if ($result->numRows() == 1)
{
$row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
$source_questionpool = $row["obj_fi"];
// change the questionpool id in the qpl_questions table
$query = sprintf("UPDATE qpl_questions SET obj_fi = %s WHERE question_id = %s",
$ilDB->quote($this->getId() . ""),
$ilDB->quote($question_object["question_id"])
);
$ilDB->query($query);
// move question data to the new target directory
$source_path = CLIENT_WEB_DIR . "/assessment/" . $source_questionpool . "/" . $question_object["question_id"] . "/";
if (@is_dir($source_path))
{
$target_path = CLIENT_WEB_DIR . "/assessment/" . $this->getId() . "/";
if (!@is_dir($target_path))
{
include_once "./Services/Utilities/classes/class.ilUtil.php";
ilUtil::makeDirParents($target_path);
}
@rename($source_path, $target_path . $question_object["question_id"]);
}
// update question count of source question pool
ilObjQuestionPool::_updateQuestionCount($source_questionpool);
}
}
else
{
$this->copyQuestion($question_object["question_id"], $this->getId());
}
}
}
// update question count of question pool
ilObjQuestionPool::_updateQuestionCount($this->getId());
unset($_SESSION["qpl_clipboard"]);
}

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ilObjQuestionPool::read (   $a_force_db = false)

read object data from db into object

Parameters
booleanpublic

Reimplemented from ilObject.

Definition at line 129 of file class.ilObjQuestionPool.php.

References loadFromDb().

{
parent::read($a_force_db);
$this->loadFromDb();
}

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ilObjQuestionPool::saveToDb ( )

Saves a ilObjQuestionpool object to a database.

Saves a ilObjQuestionpool object to a database

public

Definition at line 335 of file class.ilObjQuestionPool.php.

References ilObject\$ilias, and $result.

Referenced by createReference().

{
global $ilDB;
$query = sprintf("SELECT * FROM qpl_questionpool WHERE obj_fi = %s",
$ilDB->quote($this->getId() . "")
);
$result = $ilDB->query($query);
if ($result->numRows() == 1)
{
$query = sprintf("UPDATE qpl_questionpool SET online = %s WHERE obj_fi = %s",
$ilDB->quote($this->getOnline() . ""),
$ilDB->quote($this->getId() . "")
);
$result = $ilDB->query($query);
if (PEAR::isError($result))
{
global $ilias;
$ilias->raiseError($result->getMessage());
}
}
else
{
$query = sprintf("INSERT INTO qpl_questionpool (online, obj_fi) VALUES (%s, %s)",
$ilDB->quote($this->getOnline() . ""),
$ilDB->quote($this->getId() . "")
);
$result = $ilDB->query($query);
if (PEAR::isError($result))
{
global $ilias;
$ilias->raiseError($result->getMessage());
}
}
}

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ilObjQuestionPool::setDescription (   $a_description)

set description of content object

Reimplemented from ilObject.

Definition at line 417 of file class.ilObjQuestionPool.php.

{
parent::setDescription($a_description);
}
ilObjQuestionPool::setOnline (   $a_online_status)

Sets the questionpool online status.

Sets the questionpool online status

Parameters
integer$a_online_statusOnline status of the questionpool
See Also
online Public

Definition at line 1157 of file class.ilObjQuestionPool.php.

Referenced by ilObjQuestionPool(), and loadFromDb().

{
switch ($a_online_status)
{
case 0:
case 1:
$this->online = $a_online_status;
break;
default:
$this->online = 0;
break;
}
}

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ilObjQuestionPool::setTitle (   $a_title)

set title of glossary object

Reimplemented from ilObject.

Definition at line 435 of file class.ilObjQuestionPool.php.

{
parent::setTitle($a_title);
}
ilObjQuestionPool::toXML (   $questions)

Returns a QTI xml representation of a list of questions.

Returns a QTI xml representation of a list of questions

Parameters
array$questionsAn array containing the question ids of the questions
Returns
string The QTI xml representation of the questions public

Definition at line 1103 of file class.ilObjQuestionPool.php.

References createQuestion().

{
$xml = "";
// export button was pressed
if (count($questions) > 0)
{
foreach ($questions as $key => $value)
{
$question =& $this->createQuestion("", $value);
$xml .= $question->object->toXML();
}
if (count($questions) > 1)
{
$xml = preg_replace("/<\/questestinterop>\s*<.xml.*?>\s*<questestinterop>/", "", $xml);
}
}
$xml = preg_replace("/(<\?xml[^>]*?>)/", "\\1" . "<!DOCTYPE questestinterop SYSTEM \"ims_qtiasiv1p2p1.dtd\">", $xml);
return $xml;
}

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ilObjQuestionPool::update ( )

update object data

public

Returns
boolean

Reimplemented from ilObject.

Definition at line 94 of file class.ilObjQuestionPool.php.

References updateMetaData().

{
$this->updateMetaData();
if (!parent::update())
{
return false;
}
// put here object specific stuff
return true;
}

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ilObjQuestionPool::updateMetaData ( )

update meta data entry

Reimplemented from ilObject.

Definition at line 107 of file class.ilObjQuestionPool.php.

References ilObject\getId(), getTitle(), and ilObject\getType().

Referenced by update().

{
global $ilUser;
include_once "./Services/MetaData/classes/class.ilMD.php";
$md =& new ilMD($this->getId(), 0, $this->getType());
$md_gen =& $md->getGeneral();
if ($md_gen == false)
{
include_once "./Services/MetaData/classes/class.ilMDCreator.php";
$md_creator = new ilMDCreator($this->getId(),0,$this->getType());
$md_creator->setTitle($this->getTitle());
$md_creator->setTitleLanguage($ilUser->getPref('language'));
$md_creator->create();
}
parent::updateMetaData();
}

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Field Documentation

ilObjQuestionPool::$online

Definition at line 43 of file class.ilObjQuestionPool.php.

Referenced by getOnline().

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