Parser/classes/Factory/ManufacturerInterface.php

@@ -7,36 +7,37 @@
  * @author Thomas Joußen <tjoussen@databay.de>
  */
 
-interface ManufacturerInterface {
+interface ManufacturerInterface
+{
 
-	/**
-	 * Get an singleton of the manufacturer
-	 *
-	 * @return ManufacturerInterface
-	 */
-	public static function _getInstance();
+    /**
+     * Get an singleton of the manufacturer
+     *
+     * @return ManufacturerInterface
+     */
+    public static function _getInstance();
 
-	/**
-	 * Create a new specific Composite object which is representing the delivered Attribute
-	 *
-	 * @param string $attribute
-	 *
-	 * @return AbstractComposite
-	 */
-	public function manufacture($attribute);
+    /**
+     * Create a new specific Composite object which is representing the delivered Attribute
+     *
+     * @param string $attribute
+     *
+     * @return AbstractComposite
+     */
+    public function manufacture($attribute);
 
-	/**
-	 * @return string
-	 */
-	public function getPattern();
+    /**
+     * @return string
+     */
+    public function getPattern();
 
-	/**
-	 * Matches a delivered string with a the pattern returned by getPattern implemented in the explicit Manufacturer
-	 *
-	 * @param string $subject
-	 *
-	 * @see ManufacturerInterface::getPattern()
-	 * @return array
-	 */
-	public function match($subject);
-}
+    /**
+     * Matches a delivered string with a the pattern returned by getPattern implemented in the explicit Manufacturer
+     *
+     * @param string $subject
+     *
+     * @see ManufacturerInterface::getPattern()
+     * @return array
+     */
+    public function match($subject);
+}
\ No newline at end of file

Parser/classes/Factory/OperationManufacturer.php

@@ -8,118 +8,121 @@ require_once "AbstractManufacturer.php";
  * Date: 25.03.13
  * Time: 15:12
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
-class OperationManufacturer extends AbstractManufacturer{
+ */
+class OperationManufacturer extends AbstractManufacturer
+{
 
-	/**
-	 * A Singleton Instance of the OperationManufacturer
-	 *
-	 * @see OperatoinManufacturer::_getInstance()
-	 * @see OperationManufacturer::__construct()
-	 *
-	 * @var null|OperationManufacturer
-	 */
-	protected static $instance = null;
+    /**
+     * A Singleton Instance of the OperationManufacturer
+     *
+     * @see OperatoinManufacturer::_getInstance()
+     * @see OperationManufacturer::__construct()
+     *
+     * @var null|OperationManufacturer
+     */
+    protected static $instance = null;
 
-	/**
-	 * Get an Instance of OperationManufacturer
-	 *
-	 * @return OperationManufacturer
-	 */
-	public static function _getInstance(){
-		if(self::$instance == null){
-			self::$instance = new OperationManufacturer();
-		}
-		return self::$instance;
-	}
+    /**
+     * Get an Instance of OperationManufacturer
+     *
+     * @return OperationManufacturer
+     */
+    public static function _getInstance()
+    {
+        if (self::$instance == null) {
+            self::$instance = new OperationManufacturer();
+        }
+        return self::$instance;
+    }
 
-	/**
-	 * Create a new specific Composite object which is representing the delivered Attribute
-	 *
-	 * @param string $attribute
-	 *
-	 * @return AbstractComposite|AndOperation|EqualsOperation|GreaterOperation|GreaterOrEqualsOperation|LesserOperation|LesserOrEqualsOperation|NotEqualsOperation|OrOperation
-	 * @throws UnsupportedOperation
-	 */
-	public function manufacture($attribute)
-	{
-		$operation = "";
-		switch($attribute)
-		{
-			case LesserOperation::$pattern:
-				$operation = new LesserOperation();
-				break;
-			case LesserOrEqualsOperation::$pattern:
-				$operation = new LesserOrEqualsOperation();
-				break;
-			case EqualsOperation::$pattern:
-				$operation = new EqualsOperation();
-				break;
-			case GreaterOrEqualsOperation::$pattern:
-				$operation = new GreaterOrEqualsOperation();
-				break;
-			case GreaterOperation::$pattern:
-				$operation = new GreaterOperation();
-				break;
-			case NotEqualsOperation::$pattern:
-				$operation = new NotEqualsOperation();
-				break;
-			case AndOperation::$pattern:
-				$operation = new AndOperation();
-				break;
-			case OrOperation::$pattern:
-				$operation = new OrOperation();
-				break;
-			default:
-				throw new UnsupportedOperation($attribute);
-				break;
-		}
-		return $operation;
-	}
+    /**
+     * Create a new specific Composite object which is representing the delivered Attribute
+     *
+     * @param string $attribute
+     *
+     * @return AbstractComposite|AndOperation|EqualsOperation|GreaterOperation|GreaterOrEqualsOperation|LesserOperation|LesserOrEqualsOperation|NotEqualsOperation|OrOperation
+     * @throws UnsupportedOperation
+     */
+    public function manufacture($attribute)
+    {
+        $operation = "";
+        switch ($attribute) {
+            case LesserOperation::$pattern:
+                $operation = new LesserOperation();
+                break;
+            case LesserOrEqualsOperation::$pattern:
+                $operation = new LesserOrEqualsOperation();
+                break;
+            case EqualsOperation::$pattern:
+                $operation = new EqualsOperation();
+                break;
+            case GreaterOrEqualsOperation::$pattern:
+                $operation = new GreaterOrEqualsOperation();
+                break;
+            case GreaterOperation::$pattern:
+                $operation = new GreaterOperation();
+                break;
+            case NotEqualsOperation::$pattern:
+                $operation = new NotEqualsOperation();
+                break;
+            case AndOperation::$pattern:
+                $operation = new AndOperation();
+                break;
+            case OrOperation::$pattern:
+                $operation = new OrOperation();
+                break;
+            default:
+                throw new UnsupportedOperation($attribute);
+                break;
+        }
+        return $operation;
+    }
 
-	/**
-	 * This function create a regular expression to match all operators in a condition. <br />
-	 * The following string is created by this function <b>'/[\!&\|<>=]+/'</b><br />
-	 * It matches all operators in a condition and is divided into the following parts:
-	 *
-	 * <pre>
-	 * NEGATION:           !
-	 * AND:                &
-	 * OR:                 |
-	 * LESSER:             <
-	 * LESSER OR EQUALS:   <=
-	 * EQUALS              =
-	 * GREATER OR EQUALS   >=
-	 * GREATER             >
-	 * NOT EQUALS          <>
-	 * </pre>
-	 *
-	 * @return string
-	 */
-	public function getPattern()
-	{
-//		return '/[&\|<>=]+/';
-		return '/&|\||(?<!<|>)=|<(?!=|>)|>(?!=)|<=|>=|<>/';
-	}
+    /**
+     * This function create a regular expression to match all operators in a condition. <br />
+     * The following string is created by this function <b>'/[\!&\|<>=]+/'</b><br />
+     * It matches all operators in a condition and is divided into the following parts:
+     *
+     * <pre>
+     * NEGATION:           !
+     * AND:                &
+     * OR:                 |
+     * LESSER:             <
+     * LESSER OR EQUALS:   <=
+     * EQUALS              =
+     * GREATER OR EQUALS   >=
+     * GREATER             >
+     * NOT EQUALS          <>
+     * </pre>
+     *
+     * @return string
+     */
+    public function getPattern()
+    {
+        //		return '/[&\|<>=]+/';
+        return '/&|\||(?<!<|>)=|<(?!=|>)|>(?!=)|<=|>=|<>/';
+    }
 
-	/**
-	 * Private construtor to prevent creating an object of OperationManufacturer
-	 */
-	private function __construct()
-	{
-		require_once __DIR__ . '/../Operations/LesserOperation.php';
-		require_once __DIR__ . '/../Operations/LesserOrEqualsOperation.php';
-		require_once __DIR__ . '/../Operations/EqualsOperation.php';
-		require_once __DIR__ . '/../Operations/GreaterOrEqualsOperation.php';
-		require_once __DIR__ . '/../Operations/GreaterOperation.php';
-		require_once __DIR__ . '/../Operations/NotEqualsOperation.php';
-		require_once __DIR__ . '/../Operations/AndOperation.php';
-		require_once __DIR__ . '/../Operations/OrOperation.php';
-		require_once __DIR__ . '/../Exception/UnsupportedOperation.php';
-	}
+    /**
+     * Private construtor to prevent creating an object of OperationManufacturer
+     */
+    private function __construct()
+    {
+        require_once __DIR__ . '/../Operations/LesserOperation.php';
+        require_once __DIR__ . '/../Operations/LesserOrEqualsOperation.php';
+        require_once __DIR__ . '/../Operations/EqualsOperation.php';
+        require_once __DIR__ . '/../Operations/GreaterOrEqualsOperation.php';
+        require_once __DIR__ . '/../Operations/GreaterOperation.php';
+        require_once __DIR__ . '/../Operations/NotEqualsOperation.php';
+        require_once __DIR__ . '/../Operations/AndOperation.php';
+        require_once __DIR__ . '/../Operations/OrOperation.php';
+        require_once __DIR__ . '/../Exception/UnsupportedOperation.php';
+    }
 
-	/**
-	 * Private clone to prevent cloning an object of OperationManufacturer
-	 */
-	private function __clone() {}
+    /**
+     * Private clone to prevent cloning an object of OperationManufacturer
+     */
+    private function __clone()
+    {
+    }
 }

Parser/classes/Operations/AbstractOperation.php

@@ -8,32 +8,33 @@ include_once __DIR__ . "/../AbstractComposite.php";
  * Date: 25.03.13
  * Time: 15:37
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
-abstract class AbstractOperation extends AbstractComposite {
+ */
+abstract class AbstractOperation extends AbstractComposite
+{
 
-	/**
-	 * @var bool
-	 */
-	protected $negated = false;
+    /**
+     * @var bool
+     */
+    protected $negated = false;
 
-	/**
-	 * @return string
-	 */
-	abstract public function getPattern();
+    /**
+     * @return string
+     */
+    abstract public function getPattern();
 
-	/**
-	 * @param boolean $negated
-	 */
-	public function setNegated($negated)
-	{
-		$this->negated = $negated;
-	}
+    /**
+     * @param boolean $negated
+     */
+    public function setNegated($negated)
+    {
+        $this->negated = $negated;
+    }
 
-	/**
-	 * @return boolean
-	 */
-	public function isNegated()
-	{
-		return $this->negated;
-	}
+    /**
+     * @return boolean
+     */
+    public function isNegated()
+    {
+        return $this->negated;
+    }
 }

Parser/classes/Operations/AndOperation.php

@@ -8,28 +8,29 @@ include_once 'AbstractOperation.php';
  * Date: 25.03.13
  * Time: 14:58
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
-class AndOperation extends AbstractOperation{
+ */
+class AndOperation extends AbstractOperation
+{
 
-	/**
-	 * @var string
-	 */
-	public static $pattern = "&";
+    /**
+     * @var string
+     */
+    public static $pattern = "&";
 
-	/**
-	 * Get a human readable description of the Composite element
-	 * @return string
-	 */
-	public function getDescription()
-	{
-		return "und ";
-	}
+    /**
+     * Get a human readable description of the Composite element
+     * @return string
+     */
+    public function getDescription()
+    {
+        return "und ";
+    }
 
-	/**
-	 * @return string
-	 */
-	public function getPattern()
-	{
-		return self::$pattern;
-	}
+    /**
+     * @return string
+     */
+    public function getPattern()
+    {
+        return self::$pattern;
+    }
 }

Parser/classes/Operations/EqualsOperation.php

@@ -8,25 +8,26 @@ include_once 'AbstractOperation.php';
  * Date: 25.03.13
  * Time: 14:57
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
-class EqualsOperation extends AbstractOperation {
+ */
+class EqualsOperation extends AbstractOperation
+{
 
-	/**
-	 * @var string
-	 */
-	public static $pattern = "=";
+    /**
+     * @var string
+     */
+    public static $pattern = "=";
 
-	/**
-	 * Get a human readable description of the Composite element
-	 * @return string
-	 */
-	public function getDescription()
-	{
-		return 'mit genau ';
-	}
+    /**
+     * Get a human readable description of the Composite element
+     * @return string
+     */
+    public function getDescription()
+    {
+        return 'mit genau ';
+    }
 
-	public function getPattern()
-	{
-		return self::$pattern;
-	}
+    public function getPattern()
+    {
+        return self::$pattern;
+    }
 }

Parser/classes/Operations/GreaterOperation.php

@@ -8,24 +8,25 @@ include_once 'AbstractOperation.php';
  * Date: 25.03.13
  * Time: 14:57
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
-class GreaterOperation extends AbstractOperation{
+ */
+class GreaterOperation extends AbstractOperation
+{
 
-	/**
-	 * @var string
-	 */
-	public static $pattern = ">";
+    /**
+     * @var string
+     */
+    public static $pattern = ">";
 
-	function getDescription()
-	{
-		return "mit mehr als ";
-	}
+    public function getDescription()
+    {
+        return "mit mehr als ";
+    }
 
-	/**
-	 * @return string
-	 */
-	public function getPattern()
-	{
-		return self::$pattern;
-	}
+    /**
+     * @return string
+     */
+    public function getPattern()
+    {
+        return self::$pattern;
+    }
 }

Parser/classes/Operations/GreaterOrEqualsOperation.php

@@ -8,24 +8,25 @@ include_once 'AbstractOperation.php';
  * Date: 25.03.13
  * Time: 14:58
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
-class GreaterOrEqualsOperation extends AbstractOperation{
+ */
+class GreaterOrEqualsOperation extends AbstractOperation
+{
 
-	/**
-	 * @var string
-	 */
-	public static $pattern = ">=";
+    /**
+     * @var string
+     */
+    public static $pattern = ">=";
 
-	function getDescription()
-	{
-		return "mit mehr oder genau ";
-	}
+    public function getDescription()
+    {
+        return "mit mehr oder genau ";
+    }
 
-	/**
-	 * @return string
-	 */
-	public function getPattern()
-	{
-		return self::$pattern;
-	}
+    /**
+     * @return string
+     */
+    public function getPattern()
+    {
+        return self::$pattern;
+    }
 }

Parser/classes/Operations/LesserOperation.php

@@ -8,24 +8,25 @@ include_once 'AbstractOperation.php';
  * Date: 25.03.13
  * Time: 14:57
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
-class LesserOperation extends AbstractOperation{
+ */
+class LesserOperation extends AbstractOperation
+{
 
-	/**
-	 * @var string
-	 */
-	public static $pattern = "<";
+    /**
+     * @var string
+     */
+    public static $pattern = "<";
 
-	function getDescription()
-	{
-		return "mit weniger als ";
-	}
+    public function getDescription()
+    {
+        return "mit weniger als ";
+    }
 
-	/**
-	 * @return string
-	 */
-	public function getPattern()
-	{
-		return self::$pattern;
-	}
+    /**
+     * @return string
+     */
+    public function getPattern()
+    {
+        return self::$pattern;
+    }
 }

Parser/classes/Operations/LesserOrEqualsOperation.php

@@ -8,24 +8,25 @@ include_once 'AbstractOperation.php';
  * Date: 25.03.13
  * Time: 14:58
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
-class LesserOrEqualsOperation extends AbstractOperation{
+ */
+class LesserOrEqualsOperation extends AbstractOperation
+{
 
-	/**
-	 * @var string
-	 */
-	public static $pattern = "<=";
+    /**
+     * @var string
+     */
+    public static $pattern = "<=";
 
-	function getDescription()
-	{
-		return "mit weniger oder gleich ";
-	}
+    public function getDescription()
+    {
+        return "mit weniger oder gleich ";
+    }
 
-	/**
-	 * @return string
-	 */
-	public function getPattern()
-	{
-		return self::$pattern;
-	}
+    /**
+     * @return string
+     */
+    public function getPattern()
+    {
+        return self::$pattern;
+    }
 }

Parser/classes/Operations/NotEqualsOperation.php

@@ -8,24 +8,25 @@ include_once 'AbstractOperation.php';
  * Date: 25.03.13
  * Time: 14:57
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
-class NotEqualsOperation extends AbstractOperation{
+ */
+class NotEqualsOperation extends AbstractOperation
+{
 
-	/**
-	 * @var string
-	 */
-	public static $pattern = "<>";
+    /**
+     * @var string
+     */
+    public static $pattern = "<>";
 
-	function getDescription()
-	{
-		return "nicht mit ";
-	}
+    public function getDescription()
+    {
+        return "nicht mit ";
+    }
 
-	/**
-	 * @return string
-	 */
-	public function getPattern()
-	{
-		return self::$pattern;
-	}
+    /**
+     * @return string
+     */
+    public function getPattern()
+    {
+        return self::$pattern;
+    }
 }

Parser/classes/Operations/OrOperation.php

@@ -8,24 +8,25 @@ include_once 'AbstractOperation.php';
  * Date: 25.03.13
  * Time: 14:58
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
-class OrOperation extends AbstractOperation{
+ */
+class OrOperation extends AbstractOperation
+{
 
-	/**
-	 * @var string
-	 */
-	public static $pattern = "|";
+    /**
+     * @var string
+     */
+    public static $pattern = "|";
 
-	function getDescription()
-	{
-		return "oder ";
-	}
+    public function getDescription()
+    {
+        return "oder ";
+    }
 
-	/**
-	 * @return string
-	 */
-	public function getPattern()
-	{
-		return self::$pattern;
-	}
+    /**
+     * @return string
+     */
+    public function getPattern()
+    {
+        return self::$pattern;
+    }
 }

README.md

 # ILIAS QuestionSetPool
-* For ILIAS versions: 5.3.0 - 5.4.999
+* For ILIAS versions: 6.0 - 6.999
 
 ## Installation Instructions
 1. Create the plugin path:
@@ -20,3 +20,10 @@
 3. Select **Plugins** from the **Administration** main menu drop down.
 4. Search the **QuestionSetPool** plugin in the list of plugin and choose **Activate** from the **Actions** drop down.
 5. Choose **Configure** from the **Actions** drop down and enter the required data.
+
+## Dependencies
+
+### Graphviz
+
+Please install [`Graphviz`](https://graphviz.org/). Graphviz is required for
+the graph visualization of the question paths.
\ No newline at end of file

classes/class.ilObjQuestionSetPool.php

 <?php
 /* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Repository/classes/class.ilObjectPlugin.php';
 require_once 'models/interface.ilPluginModelInterface.php';
-require_once 'Modules/TestQuestionPool/interfaces/interface.ilQuestionEditingFormConsumer.php';
 
 /**
  * Class ilObjQuestionSetPool
@@ -11,53 +9,53 @@ require_once 'Modules/TestQuestionPool/interfaces/interface.ilQuestionEditingFor
  * Date: 23.09.13
  * Time: 13:12
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
+ */
 class ilObjQuestionSetPool extends ilObjectPlugin implements ilPluginModelInterface, ilQuestionEditingFormConsumer
 {
-	/**
-	 * @var ilQuestionSetPoolPlugin
-	 */
-	public $plugin;
-
-	/**
-	 * Boolean to check weather the object is online
-	 *
-	 * @var boolean
-	 */
-	protected $online;
-
-	/**
-	 * @var ilQuestionSetPoolSetList
-	 */
-	protected $set_list;
-
-	/**
-	 * @var array
-	 */
-	protected static $online_status_map = array();
-
-	/**
-	 * @var bool
-	 */
-	private $skillServiceEnabled = false;
-
-	/**
-	 * @var null|bool
-	 */
-	private static $isSkillManagementGloballyActivated = null;
-
-	/**
-	 * @param int $a_ref_id
-	 */
-	public function __construct($a_ref_id = 0)
-	{
-		global $DIC;
-
-		require_once 'models/class.ilQuestionSetPoolSetList.php';
-		parent::__construct($a_ref_id);
-
-		$DIC->language()->loadLanguageModule('assessment');
-	}
+    /**
+     * @var ilQuestionSetPoolPlugin
+     */
+    public $plugin;
+
+    /**
+     * Boolean to check weather the object is online
+     *
+     * @var boolean
+     */
+    protected $online;
+
+    /**
+     * @var ilQuestionSetPoolSetList
+     */
+    protected $set_list;
+
+    /**
+     * @var array
+     */
+    protected static $online_status_map = array();
+
+    /**
+     * @var bool
+     */
+    private $skillServiceEnabled = false;
+
+    /**
+     * @var null|bool
+     */
+    private static $isSkillManagementGloballyActivated = null;
+
+    /**
+     * @param int $a_ref_id
+     */
+    public function __construct($a_ref_id = 0)
+    {
+        global $DIC;
+
+        require_once 'models/class.ilQuestionSetPoolSetList.php';
+        parent::__construct($a_ref_id);
+
+        $DIC->language()->loadLanguageModule('assessment');
+    }
 
     public function checkQuestionParent($questionId)
     {
@@ -72,484 +70,455 @@ class ilObjQuestionSetPool extends ilObjectPlugin implements ilPluginModelInterf
         return (bool) $row['cnt'];
     }
 
-	/**
-	 * @return string
-	 */
-	public function getQuestionEditingFormBackTargetLabel()
-	{
-		return ilQuestionSetPoolPlugin::getInstance()->txt('back_to_qsp');
-	}
-
-	/**
-	 * @param $context
-	 * @return string
-	 */
-	public function getQuestionEditingFormBackTarget($context)
-	{
-		global $DIC; 
-		$ilCtrl = $DIC->ctrl();
-		$params = @json_decode(base64_decode($context), true);
-
-		$ilCtrl->setParameterByClass('ilObjPluginDispatchGUI', 'ref_id', $this->getRefId());
-		$url = $ilCtrl->getLinkTargetByClass(array('ilObjPluginDispatchGUI', 'ilObjQuestionSetPoolGUI'), '', '', false, false);
-		foreach((array)$params as $key => $value)
-		{
-			$url = ilUtil::appendUrlParameterString($url, $key . '='. $value);
-		}
-
-		return $url;
-	}
-
-	/**
-	 * 
-	 */
-	protected function initType()
-	{
-		require_once 'class.ilQuestionSetPoolPlugin.php';
-		$this->setType(ilQuestionSetPoolPlugin::getPluginId());
-	}
-
-	protected function doRead()
-	{
-		global $DIC;
-		$ilDB = $DIC->database();
-
-		$this->set_list = new ilQuestionSetPoolSetList($this);
-
-		$result = $ilDB->queryF(
-			"SELECT * FROM rep_robj_xqsp_data WHERE id = %s",
-			array("integer"),
-			array($this->id)
-		);
-
-		$data = $ilDB->fetchAssoc($result);
-
-		$this->setOnline($data["is_online"]);
-		$this->setSkillServiceEnabled($data['skill_service']);
-	}
-
-	/**
-	 * 
-	 */
-	public function doCreate()
-	{
-		global $DIC;
-		$ilDB = $DIC->database();
-
-		$this->set_list      = new ilQuestionSetPoolSetList($this);
-
-		$ilDB->insert(
-			$this->plugin->getAdditionalDataTable(),
-			array(
-				"id" => array("integer", $this->id),
-				"is_online" => array("integer", $this->isOnline())
-			)
-		);
-
-		$this->createMetaData();
-	}
-
-	/**
-	 *
-	 */
-	public function doUpdate()
-	{
-		global $DIC;
-		$ilDB = $DIC->database();
-		
-		$ilDB->update(
-			$this->plugin->getAdditionalDataTable(),
-			array(
-				"is_online" => array("integer", $this->isOnline()),
-				'skill_service' => array('integer', $this->isSkillServiceEnabled())
-			),
-			array(
-				"id" => array("integer", $this->id)
-			)
-		);
-		
-		$this->updateMetaData();
-	}
-
-	/**
-	 * Cascade delete children
-	 */
-	protected function beforeDelete()
-	{
-		$sets = $this->set_list->getData();
-		foreach($sets as $set)
-		{
-			/**
-			 * @var $set ilQuestionSetPoolSet
-			 */
-			$set->remove();
-		}
-
-		return true;
-	}
-
-	protected function doDelete()
-	{
-		global $DIC;
-		$ilDB = $DIC->database();
-
-		$query = 'DELETE FROM '.$this->plugin->getAdditionalDataTable().' WHERE id = ' . $ilDB->quote($this->getId(), 'integer');
-		$ilDB->manipulate($query);
-
-		$this->deleteMetaData();
-	}
-
-	
-
-	/**
-	 * @param ilObjQuestionSetPool  $new_obj
-	 * @param int                   $a_target_id
-	 * @param int                   $a_copy_id
-	 */
-	public function doCloneObject($new_obj, $a_target_id, $a_copy_id = NULL)
-	{
-		$this->cloneMetaData($new_obj);
-		$this->cloneQuestionSets($new_obj);
-	}
-	
-	/**
-	 * @param ilObjQuestionSetPool| ilObjFormATest $new_obj
-	 */
-	public function cloneQuestionSets($new_obj)
-	{
-		$this->plugin->includeClass('models/class.ilQuestionSetPoolSet.php');
-		$this->plugin->includeClass('models/class.ilQuestionSetPoolPath.php');
-		$this->plugin->includeClass('models/class.ilQuestionSetPoolNode.php');
-		$this->plugin->includeClass('models/class.ilQuestionSetPoolJumpCondition.php');
-		
-		$setlist = $this->getSetList();
-		$sets    = $setlist->loadData();
-		foreach((array)$sets as $set_index => $set_data)
-		{
-			$set = new ilQuestionSetPoolSet((int)$set_data['id']);
-			$set->read();
-
-			$new_set = new ilQuestionSetPoolSet();
-			$new_set->setContainerObjId($new_obj->getId());
-			$new_set->setTitle((string)$set->getTitle());
-			$new_set->setDescription((string)$set->getDescription());
-			$new_set->update();
-
-			// Export QuestionList 
-			$question_mapping = $this->cloneQuestionList($set, $new_set);
-
-			// Export Paths
-			$this->clonePathList($set->getPathList(), $new_set, $question_mapping);
-		}
-	}
-	
-	/**
-	 * @param ilQuestionSetPoolSet $source_set
-	 * @param ilQuestionSetPoolSet $new_set
-	 * @return array
-	 */
-	protected function cloneQuestionList(ilQuestionSetPoolSet $source_set, ilQuestionSetPoolSet $new_set)
-	{
-		$questionList = $source_set->getQuestionList();
-		$questions    = $questionList->loadData();
-
-		$mapping = array();
-
-		foreach((array)$questions as $question_index => $question)
-		{
-			$mapping = $questionList->cloneQuestionList(array($question['question_id']), $source_set, $new_set) + $mapping;
-		}
-
-		return $mapping;
-	}
-	
-	/**
-	 * @param ilQuestionSetPoolPathList $pathList
-	 * @param ilQuestionSetPoolSet      $new_set
-	 * @param array                     $question_mapping A map of integer values, old_question_fi -> new_question_fi
-	 */
-	protected function clonePathList(ilQuestionSetPoolPathList $pathList, ilQuestionSetPoolSet $new_set, array $question_mapping)
-	{
-		$paths = $pathList->loadData();
-		foreach((array)$paths as $path_index => $path_data)
-		{
-			$path = new ilQuestionSetPoolPath();
-			$path->setId($path_data['id']);
-			$path->read();
-			
-			$new_path = new ilQuestionSetPoolPath();
-			$new_path->setSet($new_set);
-			$new_path->setTitle($path->getTitle());
-			$new_path->setIndex($path->getIndex());
-			$new_path->import();
-
-			// Nodes 
-			$this->cloneNodeList($path->getNodes(), $new_path, $question_mapping);
-		}
-	}
-	
-	/**
-	 * @param ilQuestionSetPoolNodeList $nodeList
-	 * @param ilQuestionSetPoolPath     $new_path
-	 * @param array                     $question_mapping A map of integer values, old_question_fi -> new_question_fi
-	 * $question_mapping A map of integer values, old_question_fi -> new_question_fi
-	 */
-	protected function cloneNodeList(ilQuestionSetPoolNodeList $nodeList, ilQuestionSetPoolPath $new_path, array $question_mapping)
-	{
-		$nodes = $nodeList->loadData();
-		foreach((array)$nodes as $node_index => $node_data)
-		{
-			$node = new ilQuestionSetPoolNode((int)$node_data['id']);
-			$node->read();
-
-			$new_node = new ilQuestionSetPoolNode();
-			if(isset($question_mapping[$node->getQuestion()->getId()]))
-			{
-				$new_node->setQuestion(assQuestion::_instantiateQuestion($question_mapping[$node->getQuestion()->getId()]));
-			}
-			else
-			{
-				$new_node->setQuestion(assQuestion::_instantiateQuestion($node->getQuestion()->getId()));
-			}
-			$new_node->setPath($new_path);
-			$new_node->setInitialCondition($node->getInitialCondition());
-			$new_node->setDominantScoring($node->getDominantScoring());
-			$new_node->setTrueFeedback($node->getTrueFeedback());
-			$new_node->setFalseFeedback($node->getFalseFeedback());
-			$new_node->import();
-
-			// Jump Conditions 
-			$this->cloneJumpConditions($node->getJumpConditionList(), $new_node);
-		}
-	}
-	
-	/**
-	 * @param ilQuestionSetPoolJumpConditionList $jumpConditionList
-	 * @param ilQuestionSetPoolNode              $new_node
-	 */
-	protected function cloneJumpConditions(ilQuestionSetPoolJumpConditionList $jumpConditionList, ilQuestionSetPoolNode $new_node)
-	{
-		$jumpConditions = $jumpConditionList->getData();
-		foreach((array)$jumpConditions as $jmp_con_index => $jumpCondition_data)
-		{
-			$jumpCondition = new ilQuestionSetPoolJumpCondition();
-			$jumpCondition->setId($jumpCondition_data['id']);
-			$jumpCondition->read();
-			
-			$new_jump_con = new ilQuestionSetPoolJumpCondition();
-			$new_jump_con->setNode($new_node);
-			$new_jump_con->setQuestion($new_node->getQuestion());
-			$new_jump_con->setJumpCondition($jumpCondition->getJumpCondition());
-			$new_jump_con->setRepititions($jumpCondition->getRepititions());
-			$new_jump_con->setTrueFeedback($jumpCondition->getTrueFeedback());
-			$new_jump_con->setTrueJumpFeedback($jumpCondition->getTrueJumpFeedback());
-			$new_jump_con->setFalseFeedback($jumpCondition->getFalseFeedback());
-
-			$new_jump_con->import();
-		}
-	}
-	
-	/**
-	 * @param boolean $online
-	 */
-	public function setOnline($online)
-	{
-		$this->online = $online;
-	}
-
-	/**
-	 * @return boolean
-	 */
-	public function isOnline()
-	{
-		return $this->online;
-	}
-
-	/**
-	 * @return ilQuestionSetPoolSetList
-	 */
-	public function getSetList()
-	{
-		return $this->set_list;
-	}
-
-	/**
-	 * @return array
-	 */
-	public function toArray()
-	{
-		return array(
-			'title'         => $this->getTitle(),
-			'description'   => $this->getDescription(),
-			'online'        => $this->isOnline(),
-			'skill_service' => $this->isSkillServiceEnabled() 
-		);
-	}
-
-	/**
-	 * @param ilPropertyFormGUI $form
-	 */
-	public function bindForm(ilPropertyFormGUI $form)
-	{
-		$this->setTitle($form->getInput('title'));
-		$this->setDescription($form->getInput('description'));
-		$this->setOnline($form->getInput('online'));
-		$this->setSkillServiceEnabled((bool)$form->getInput('skill_service'));
-	}
-
-	/**
-	 * @param int $obj_id
-	 * @return bool
-	 */
-	public static function getOnlineStatusByObjId($obj_id)
-	{
-		if(isset(self::$online_status_map[$obj_id]))
-		{
-			return (bool)self::$online_status_map[$obj_id];
-		}
-
-		self::preloadDataForLists(array($obj_id));
-	}
-
-	/**
-	 * @param array $obj_ids
-	 * @param array $ref_ids
-	 */
-	public static function preloadDataForLists(array $obj_ids, array $ref_ids = array())
-	{
-		global $DIC;
-		$ilDB = $DIC->database();
-
-		if(is_array($obj_ids) && count($obj_ids) == 1)
-		{
-			$in = ' id = ' . $ilDB->quote(current($obj_ids), 'integer') . ' ';
-		}
-		else
-		{
-			$in = $ilDB->in('id', $obj_ids, false, 'integer');
-		}
-		
-		$query = "
+    /**
+     * @return string
+     */
+    public function getQuestionEditingFormBackTargetLabel()
+    {
+        return ilQuestionSetPoolPlugin::getInstance()->txt('back_to_qsp');
+    }
+
+    /**
+     * @param $context
+     * @return string
+     */
+    public function getQuestionEditingFormBackTarget($context)
+    {
+        global $DIC;
+        $ilCtrl = $DIC->ctrl();
+        $params = @json_decode(base64_decode($context), true);
+
+        $ilCtrl->setParameterByClass('ilObjPluginDispatchGUI', 'ref_id', $this->getRefId());
+        $url = $ilCtrl->getLinkTargetByClass(array('ilObjPluginDispatchGUI', 'ilObjQuestionSetPoolGUI'), '', '', false, false);
+        foreach ((array) $params as $key => $value) {
+            $url = ilUtil::appendUrlParameterString($url, $key . '=' . $value);
+        }
+
+        return $url;
+    }
+
+    /**
+     *
+     */
+    protected function initType()
+    {
+        require_once 'class.ilQuestionSetPoolPlugin.php';
+        $this->setType(ilQuestionSetPoolPlugin::getPluginId());
+    }
+
+    protected function doRead()
+    {
+        global $DIC;
+        $ilDB = $DIC->database();
+
+        $this->set_list = new ilQuestionSetPoolSetList($this);
+
+        $result = $ilDB->queryF(
+            "SELECT * FROM rep_robj_xqsp_data WHERE id = %s",
+            array("integer"),
+            array($this->id)
+        );
+
+        $data = $ilDB->fetchAssoc($result);
+
+        $this->setOnline($data["is_online"]);
+        $this->setSkillServiceEnabled($data['skill_service']);
+    }
+
+    /**
+     *
+     */
+    public function doCreate()
+    {
+        global $DIC;
+        $ilDB = $DIC->database();
+
+        $this->set_list = new ilQuestionSetPoolSetList($this);
+
+        $ilDB->insert(
+            $this->plugin->getAdditionalDataTable(),
+            array(
+                "id" => array("integer", $this->id),
+                "is_online" => array("integer", $this->isOnline())
+            )
+        );
+
+        $this->createMetaData();
+    }
+
+    /**
+     *
+     */
+    public function doUpdate()
+    {
+        global $DIC;
+        $ilDB = $DIC->database();
+        
+        $ilDB->update(
+            $this->plugin->getAdditionalDataTable(),
+            array(
+                "is_online" => array("integer", $this->isOnline()),
+                'skill_service' => array('integer', $this->isSkillServiceEnabled())
+            ),
+            array(
+                "id" => array("integer", $this->id)
+            )
+        );
+        
+        $this->updateMetaData();
+    }
+
+    /**
+     * Cascade delete children
+     */
+    protected function beforeDelete()
+    {
+        $sets = $this->set_list->getData();
+        foreach ($sets as $set) {
+            /**
+             * @var $set ilQuestionSetPoolSet
+             */
+            $set->remove();
+        }
+
+        return true;
+    }
+
+    protected function doDelete()
+    {
+        global $DIC;
+        $ilDB = $DIC->database();
+
+        $query = 'DELETE FROM ' . $this->plugin->getAdditionalDataTable() . ' WHERE id = ' . $ilDB->quote($this->getId(), 'integer');
+        $ilDB->manipulate($query);
+
+        $this->deleteMetaData();
+    }
+
+    
+
+    /**
+     * @param ilObjQuestionSetPool  $new_obj
+     * @param int                   $a_target_id
+     * @param int                   $a_copy_id
+     */
+    public function doCloneObject($new_obj, $a_target_id, $a_copy_id = null)
+    {
+        $this->cloneMetaData($new_obj);
+        $this->cloneQuestionSets($new_obj);
+    }
+    
+    /**
+     * @param ilObjQuestionSetPool| ilObjFormATest $new_obj
+     */
+    public function cloneQuestionSets($new_obj)
+    {
+        $this->plugin->includeClass('models/class.ilQuestionSetPoolSet.php');
+        $this->plugin->includeClass('models/class.ilQuestionSetPoolPath.php');
+        $this->plugin->includeClass('models/class.ilQuestionSetPoolNode.php');
+        $this->plugin->includeClass('models/class.ilQuestionSetPoolJumpCondition.php');
+        
+        $setlist = $this->getSetList();
+        $sets = $setlist->loadData();
+        foreach ((array) $sets as $set_index => $set_data) {
+            $set = new ilQuestionSetPoolSet((int) $set_data['id']);
+            $set->read();
+
+            $new_set = new ilQuestionSetPoolSet();
+            $new_set->setContainerObjId($new_obj->getId());
+            $new_set->setTitle((string) $set->getTitle());
+            $new_set->setDescription((string) $set->getDescription());
+            $new_set->update();
+
+            // Export QuestionList
+            $question_mapping = $this->cloneQuestionList($set, $new_set);
+
+            // Export Paths
+            $this->clonePathList($set->getPathList(), $new_set, $question_mapping);
+        }
+    }
+    
+    /**
+     * @param ilQuestionSetPoolSet $source_set
+     * @param ilQuestionSetPoolSet $new_set
+     * @return array
+     */
+    protected function cloneQuestionList(ilQuestionSetPoolSet $source_set, ilQuestionSetPoolSet $new_set)
+    {
+        $questionList = $source_set->getQuestionList();
+        $questions = $questionList->loadData();
+
+        $mapping = array();
+
+        foreach ((array) $questions as $question_index => $question) {
+            $mapping = $questionList->cloneQuestionList(array($question['question_id']), $source_set, $new_set) + $mapping;
+        }
+
+        return $mapping;
+    }
+    
+    /**
+     * @param ilQuestionSetPoolPathList $pathList
+     * @param ilQuestionSetPoolSet      $new_set
+     * @param array                     $question_mapping A map of integer values, old_question_fi -> new_question_fi
+     */
+    protected function clonePathList(ilQuestionSetPoolPathList $pathList, ilQuestionSetPoolSet $new_set, array $question_mapping)
+    {
+        $paths = $pathList->loadData();
+        foreach ((array) $paths as $path_index => $path_data) {
+            $path = new ilQuestionSetPoolPath();
+            $path->setId($path_data['id']);
+            $path->read();
+            
+            $new_path = new ilQuestionSetPoolPath();
+            $new_path->setSet($new_set);
+            $new_path->setTitle($path->getTitle());
+            $new_path->setIndex($path->getIndex());
+            $new_path->import();
+
+            // Nodes
+            $this->cloneNodeList($path->getNodes(), $new_path, $question_mapping);
+        }
+    }
+    
+    /**
+     * @param ilQuestionSetPoolNodeList $nodeList
+     * @param ilQuestionSetPoolPath     $new_path
+     * @param array                     $question_mapping A map of integer values, old_question_fi -> new_question_fi
+     * $question_mapping A map of integer values, old_question_fi -> new_question_fi
+     */
+    protected function cloneNodeList(ilQuestionSetPoolNodeList $nodeList, ilQuestionSetPoolPath $new_path, array $question_mapping)
+    {
+        $nodes = $nodeList->loadData();
+        foreach ((array) $nodes as $node_index => $node_data) {
+            $node = new ilQuestionSetPoolNode((int) $node_data['id']);
+            $node->read();
+
+            $new_node = new ilQuestionSetPoolNode();
+            if (isset($question_mapping[$node->getQuestion()->getId()])) {
+                $new_node->setQuestion(assQuestion::_instantiateQuestion($question_mapping[$node->getQuestion()->getId()]));
+            } else {
+                $new_node->setQuestion(assQuestion::_instantiateQuestion($node->getQuestion()->getId()));
+            }
+            $new_node->setPath($new_path);
+            $new_node->setInitialCondition($node->getInitialCondition());
+            $new_node->setDominantScoring($node->getDominantScoring());
+            $new_node->setTrueFeedback($node->getTrueFeedback());
+            $new_node->setFalseFeedback($node->getFalseFeedback());
+            $new_node->import();
+
+            // Jump Conditions
+            $this->cloneJumpConditions($node->getJumpConditionList(), $new_node);
+        }
+    }
+    
+    /**
+     * @param ilQuestionSetPoolJumpConditionList $jumpConditionList
+     * @param ilQuestionSetPoolNode              $new_node
+     */
+    protected function cloneJumpConditions(ilQuestionSetPoolJumpConditionList $jumpConditionList, ilQuestionSetPoolNode $new_node)
+    {
+        $jumpConditions = $jumpConditionList->getData();
+        foreach ((array) $jumpConditions as $jmp_con_index => $jumpCondition_data) {
+            $jumpCondition = new ilQuestionSetPoolJumpCondition();
+            $jumpCondition->setId($jumpCondition_data['id']);
+            $jumpCondition->read();
+            
+            $new_jump_con = new ilQuestionSetPoolJumpCondition();
+            $new_jump_con->setNode($new_node);
+            $new_jump_con->setQuestion($new_node->getQuestion());
+            $new_jump_con->setJumpCondition($jumpCondition->getJumpCondition());
+            $new_jump_con->setRepititions($jumpCondition->getRepititions());
+            $new_jump_con->setTrueFeedback($jumpCondition->getTrueFeedback());
+            $new_jump_con->setTrueJumpFeedback($jumpCondition->getTrueJumpFeedback());
+            $new_jump_con->setFalseFeedback($jumpCondition->getFalseFeedback());
+
+            $new_jump_con->import();
+        }
+    }
+    
+    /**
+     * @param boolean $online
+     */
+    public function setOnline($online)
+    {
+        $this->online = $online;
+    }
+
+    /**
+     * @return boolean
+     */
+    public function isOnline()
+    {
+        return $this->online;
+    }
+
+    /**
+     * @return ilQuestionSetPoolSetList
+     */
+    public function getSetList()
+    {
+        return $this->set_list;
+    }
+
+    /**
+     * @return array
+     */
+    public function toArray()
+    {
+        return array(
+            'title' => $this->getTitle(),
+            'description' => $this->getDescription(),
+            'online' => $this->isOnline(),
+            'skill_service' => $this->isSkillServiceEnabled()
+        );
+    }
+
+    /**
+     * @param ilPropertyFormGUI $form
+     */
+    public function bindForm(ilPropertyFormGUI $form)
+    {
+        $this->setTitle($form->getInput('title'));
+        $this->setDescription($form->getInput('description'));
+        $this->setOnline($form->getInput('online'));
+        $this->setSkillServiceEnabled((bool) $form->getInput('skill_service'));
+    }
+
+    /**
+     * @param int $obj_id
+     * @return bool
+     */
+    public static function getOnlineStatusByObjId($obj_id)
+    {
+        if (isset(self::$online_status_map[$obj_id])) {
+            return (bool) self::$online_status_map[$obj_id];
+        }
+
+        self::preloadDataForLists(array($obj_id));
+    }
+
+    /**
+     * @param array $obj_ids
+     * @param array $ref_ids
+     */
+    public static function preloadDataForLists(array $obj_ids, array $ref_ids = array())
+    {
+        global $DIC;
+        $ilDB = $DIC->database();
+
+        if (is_array($obj_ids) && count($obj_ids) == 1) {
+            $in = ' id = ' . $ilDB->quote(current($obj_ids), 'integer') . ' ';
+        } else {
+            $in = $ilDB->in('id', $obj_ids, false, 'integer');
+        }
+        
+        $query = "
 			SELECT id, is_online
 			FROM rep_robj_xqsp_data
 			WHERE $in 
 		";
-		$res   = $ilDB->query($query);
-
-		while($row = $ilDB->fetchAssoc($res))
-		{
-			self::$online_status_map[$row['id']] = $row['is_online'];
-		}
-	}
-
-	public static function getAvailableQuestionSetPools($could_be_offline = FALSE)
-	{
-		global $DIC;
-		$ilDB = $DIC->database();
-		$ilUser = $DIC->user();
-		
-		$result_array = array();
-
-		$pools = ilUtil::_getObjectsByOperations("xqsp", "read", $ilUser->getId(), -1);
-		$obj_ids = array();
-		$ref_ids = array();
-		foreach($pools as $ref_id)
-		{
-			$obj_ids[$ref_id] = ilObject::_lookupObjId($ref_id);
-			$ref_ids[ilObject::_lookupObjId($ref_id)] = $ref_id;
-		}
-
-		if($could_be_offline)
-		{
-			$result = $ilDB->query("SELECT id FROM rep_robj_xqsp_data WHERE " . $ilDB->in("id", $obj_ids, false, "integer"));		
-		}
-		else
-		{
-			$result = $ilDB->queryF(
-				"SELECT id FROM rep_robj_xqsp_data WHERE is_online = %s AND " . $ilDB->in("id", $obj_ids, false, "integer"),
-				array("integer"),
-				array(1)
-			);
-		}
-		
-		while(($row = $ilDB->fetchAssoc($result)) != null)
-		{
-			$pool = new ilObjQuestionSetPool();
-			$pool->setRefId($ref_ids[$row["id"]]);
-			$pool->read();
-			$result_array[$row["id"]] = $pool;
-		}
-
-		return $result_array;
-	}
-
-	public static function canSynchronizeSet($set_id)
-	{
-		global $DIC; 
-		$rbacsystem = $DIC->rbac()->system();
-
-		if($set_id == null)
-		{
-			return false;
-		}
-
-		$set = new ilQuestionSetPoolSet($set_id);
-		$set->read();
-		if($set->getContainerObjId() != null)
-		{
-			$available = array_keys(self::getAvailableQuestionSetPools());
-
-			if(in_array($set->getContainerObjId(), $available))
-			{
-				$refs = ilObject::_getAllReferences($set->getContainerObjId());
-				foreach($refs as $ref)
-				{
-					if($rbacsystem->checkAccess("write", $ref) && ilObject::_hasUntrashedReference($set->getContainerObjId()))
-					{
-						return true;
-					}
-				}
-			}
-		}
-
-		return false;
-	}
-
-	/**
-	 * @param boolean $skillServiceEnabled
-	 */
-	public function setSkillServiceEnabled($skillServiceEnabled)
-	{
-		$this->skillServiceEnabled = $skillServiceEnabled;
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function isSkillServiceEnabled()
-	{
-		if(!self::isSkillManagementGloballyActivated())
-		{
-			return false;
-		}
-		
-		return $this->skillServiceEnabled;
-	}
-
-	/**
-	 * @return bool
-	 */
-	public static function isSkillManagementGloballyActivated()
-	{
-		
-		if( self::$isSkillManagementGloballyActivated === null )
-		{
-			include_once './Services/Skill/classes/class.ilSkillManagementSettings.php';
-			$skmgSet = new ilSkillManagementSettings();
-
-			self::$isSkillManagementGloballyActivated = $skmgSet->isActivated();
-		}
-
-		return self::$isSkillManagementGloballyActivated;
-	}
+        $res = $ilDB->query($query);
+
+        while ($row = $ilDB->fetchAssoc($res)) {
+            self::$online_status_map[$row['id']] = $row['is_online'];
+        }
+    }
+
+    public static function getAvailableQuestionSetPools($could_be_offline = false)
+    {
+        global $DIC;
+        $ilDB = $DIC->database();
+        $ilUser = $DIC->user();
+        
+        $result_array = array();
+
+        $pools = ilUtil::_getObjectsByOperations("xqsp", "read", $ilUser->getId(), -1);
+        $obj_ids = array();
+        $ref_ids = array();
+        foreach ($pools as $ref_id) {
+            $obj_ids[$ref_id] = ilObject::_lookupObjId($ref_id);
+            $ref_ids[ilObject::_lookupObjId($ref_id)] = $ref_id;
+        }
+
+        if ($could_be_offline) {
+            $result = $ilDB->query("SELECT id FROM rep_robj_xqsp_data WHERE " . $ilDB->in("id", $obj_ids, false, "integer"));
+        } else {
+            $result = $ilDB->queryF(
+                "SELECT id FROM rep_robj_xqsp_data WHERE is_online = %s AND " . $ilDB->in("id", $obj_ids, false, "integer"),
+                array("integer"),
+                array(1)
+            );
+        }
+        
+        while (($row = $ilDB->fetchAssoc($result)) != null) {
+            $pool = new ilObjQuestionSetPool();
+            $pool->setRefId($ref_ids[$row["id"]]);
+            $pool->read();
+            $result_array[$row["id"]] = $pool;
+        }
+
+        return $result_array;
+    }
+
+    public static function canSynchronizeSet($set_id)
+    {
+        global $DIC;
+        $rbacsystem = $DIC->rbac()->system();
+
+        if ($set_id == null) {
+            return false;
+        }
+
+        $set = new ilQuestionSetPoolSet($set_id);
+        $set->read();
+        if ($set->getContainerObjId() != null) {
+            $available = array_keys(self::getAvailableQuestionSetPools());
+
+            if (in_array($set->getContainerObjId(), $available)) {
+                $refs = ilObject::_getAllReferences($set->getContainerObjId());
+                foreach ($refs as $ref) {
+                    if ($rbacsystem->checkAccess("write", $ref) && ilObject::_hasUntrashedReference($set->getContainerObjId())) {
+                        return true;
+                    }
+                }
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * @param boolean $skillServiceEnabled
+     */
+    public function setSkillServiceEnabled($skillServiceEnabled)
+    {
+        $this->skillServiceEnabled = $skillServiceEnabled;
+    }
+
+    /**
+     * @return bool
+     */
+    public function isSkillServiceEnabled()
+    {
+        if (!self::isSkillManagementGloballyActivated()) {
+            return false;
+        }
+        
+        return $this->skillServiceEnabled;
+    }
+
+    /**
+     * @return bool
+     */
+    public static function isSkillManagementGloballyActivated()
+    {
+        if (self::$isSkillManagementGloballyActivated === null) {
+            $skmgSet = new ilSkillManagementSettings();
+
+            self::$isSkillManagementGloballyActivated = $skmgSet->isActivated();
+        }
+
+        return self::$isSkillManagementGloballyActivated;
+    }
 }

classes/class.ilObjQuestionSetPoolAccess.php

 <?php
 /* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Repository/classes/class.ilObjectPluginAccess.php';
 require_once 'class.ilObjQuestionSetPool.php';
 
 /**
@@ -10,60 +9,57 @@ require_once 'class.ilObjQuestionSetPool.php';
  * Date: 23.09.13
  * Time: 13:46
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
+ */
 class ilObjQuestionSetPoolAccess extends ilObjectPluginAccess
 {
-	/**
-	 * @param string $a_cmd
-	 * @param string $a_permission
-	 * @param int    $a_ref_id
-	 * @param int    $a_obj_id
-	 * @param string $a_user_id
-	 * @return bool
-	 */
-	public function _checkAccess($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id = '')
-	{
-		/**
-		 * @var $ilUser   ilObjUser
-		 * @var $ilAccess ilAccessHandler
-		 */
-		global $ilUser, $ilAccess;
+    /**
+     * @param string $a_cmd
+     * @param string $a_permission
+     * @param int    $a_ref_id
+     * @param int    $a_obj_id
+     * @param string $a_user_id
+     * @return bool
+     */
+    public function _checkAccess($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id = '')
+    {
+        /**
+         * @var $ilUser   ilObjUser
+         * @var $ilAccess ilAccessHandler
+         */
+        global $ilUser, $ilAccess;
 
-		if(!$a_user_id)
-		{
-			$a_user_id = $ilUser->getId();
-		}
+        if (!$a_user_id) {
+            $a_user_id = $ilUser->getId();
+        }
 
-		switch($a_permission)
-		{
-			case 'read':
-				if(
-					!ilObjQuestionSetPoolAccess::checkOnline($a_obj_id) &&
-					!$ilAccess->checkAccessOfUser($a_user_id, 'write', '', $a_ref_id)
-				)
-				{
-					return false;
-				}
-				return true;
-		}
+        switch ($a_permission) {
+            case 'read':
+                if (
+                    !ilObjQuestionSetPoolAccess::checkOnline($a_obj_id) &&
+                    !$ilAccess->checkAccessOfUser($a_user_id, 'write', '', $a_ref_id)
+                ) {
+                    return false;
+                }
+                return true;
+        }
 
-		return true;
-	}
+        return true;
+    }
 
-	/**
-	 * @param int $a_obj_id
-	 */
-	public static function checkOnline($a_obj_id)
-	{
-		return ilObjQuestionSetPool::getOnlineStatusByObjId($a_obj_id);
-	}
+    /**
+     * @param int $a_obj_id
+     */
+    public static function checkOnline($a_obj_id)
+    {
+        return ilObjQuestionSetPool::getOnlineStatusByObjId($a_obj_id);
+    }
 
-	/**
-	 * @param array $a_obj_ids
-	 * @param array $a_ref_ids
-	 */
-	static function _preloadData($a_obj_ids, $a_ref_ids)
-	{
-		ilObjQuestionSetPool::preloadDataForLists($a_obj_ids, $a_ref_ids);
-	}
+    /**
+     * @param array $a_obj_ids
+     * @param array $a_ref_ids
+     */
+    public static function _preloadData($a_obj_ids, $a_ref_ids)
+    {
+        ilObjQuestionSetPool::preloadDataForLists($a_obj_ids, $a_ref_ids);
+    }
 }

classes/class.ilObjQuestionSetPoolGUI.php

 <?php
 /* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Repository/classes/class.ilObjectPluginGUI.php';
-require_once 'Services/PersonalDesktop/interfaces/interface.ilDesktopItemHandling.php';
-
 /**
  * Class ilObjQuestionSetPoolGUI
  * Date: 23.09.13
@@ -17,360 +14,295 @@ require_once 'Services/PersonalDesktop/interfaces/interface.ilDesktopItemHandlin
 class ilObjQuestionSetPoolGUI extends ilObjectPluginGUI implements ilDesktopItemHandling
 {
 
-	/**
-	 * @var ilObjQuestionSetPool
-	 */
-	public $object;
-
-	public $plugin;
-	
-	/**
-	 * @param string $cmd
-	 * @return mixed
-	 */
-	public function performCommand($cmd)
-	{
-		/**
-		 * @var $ilTabs ilTabsGUI
-		 * @var $tpl    ilTemplate
-		 */
-		global $ilTabs, $tpl;
-
-		require_once "./Customizing/global/plugins/Services/Repository/RepositoryObject/QuestionSetPool/classes/dispatcher/class.ilPluginDispatcher.php";
-
-		$tpl->setDescription($this->object->getDescription());
-
-		$this->lng->loadLanguageModule('assessment');
-		$tpl->addCss('./Customizing/global/plugins/Services/Repository/RepositoryObject/QuestionSetPool/templates/default/xqsp.css');
-
-		$next_class = $this->ctrl->getNextClass($this);
-		switch($next_class)
-		{
-			case 'ilquestionsetpoolskilladministrationgui':
-				require_once 'controllers/class.ilQuestionSetPoolSkillAdministrationGUI.php';
-				$this->prepareOutput();
-				$this->addHeaderAction();
-
-				$gui = new ilQuestionSetPoolSkillAdministrationGUI($this);
-				$this->ctrl->forwardCommand($gui);
-				break;
-
-			case 'ilmdeditorgui':
-				$this->checkPermission('write');
-				require_once 'Services/MetaData/classes/class.ilMDEditorGUI.php';
-				$md_gui = new ilMDEditorGUI($this->object->getId(), 0, $this->object->getType());
-				$md_gui->addObserver($this->object, 'MDUpdateListener', 'General');
-				$ilTabs->setTabActive('meta_data');
-				return $this->ctrl->forwardCommand($md_gui);
-				break;
-
-			case 'ilpublicuserprofilegui':
-				require_once 'Services/User/classes/class.ilPublicUserProfileGUI.php';
-				$profile_gui = new ilPublicUserProfileGUI($_GET['user']);
-				$profile_gui->setBackUrl($this->ctrl->getLinkTarget($this, 'showContent'));
-				$this->tpl->setContent($this->ctrl->forwardCommand($profile_gui));
-				break;
-
-			case 'ilcommonactiondispatchergui':
-				require_once 'Services/Object/classes/class.ilCommonActionDispatcherGUI.php';
-				$gui = ilCommonActionDispatcherGUI::getInstanceFromAjaxCall();
-				$this->ctrl->forwardCommand($gui);
-				break;
-			case "ilquestionsetpoolexportgui":
-				$this->checkPermission('write');
-				$ilTabs->setTabActive('export');
-				$this->getPlugin()->includeClass('class.ilQuestionSetPoolExportGUI.php');
-				$exp_gui = new ilQuestionSetPoolExportGUI($this);
-				$exp_gui->addFormat('xml', $this->lng->txt('qpl_export_xml'));
-				$this->ctrl->forwardCommand($exp_gui);
-				break;
-			default:
-				switch($cmd)
-				{
-					case 'redrawHeaderAction':
-					case 'addToDesk':
-					case 'removeFromDesk':
-						if(in_array($cmd, array('addToDesk', 'removeFromDesk')))
-						{
-							$cmd .= 'Object';
-						}
-						$this->checkPermission('read');
-						$this->$cmd();
-						break;
-
-					default:
-						$this->ensureEntityExistance();
-						$dispatcher = ilPluginDispatcher::getInstance($this);
-						$dispatcher->dispatch($cmd);
-						break;
-				}
-				break;
-		}
-
-		$this->addHeaderAction();
-	}
-
-	protected function redirectToDefaultPage()
-	{
-		$this->ctrl->redirect($this);
-	}
-	
-	protected function ensureEntityExistance()
-	{
-		if(isset($_GET['set_id']) && (int)$_GET['set_id'])
-		{
-			$set_id = (int)$_GET['set_id'];
-			$this->getPlugin()->includeClass('models/class.ilQuestionSetPoolSet.php');
-			if(!ilQuestionSetPoolSet::exists($set_id))
-			{
-				ilUtil::sendFailure($this->txt('poss_sync_err_set'), true);
-				$this->redirectToDefaultPage();
-			}
-		}
-
-		if(isset($_GET['path_id']) && (int)$_GET['path_id'])
-		{
-			$path_id = (int)$_GET['path_id'];
-			$this->getPlugin()->includeClass('models/class.ilQuestionSetPoolPath.php');
-			if(!ilQuestionSetPoolPath::exists($path_id))
-			{
-				ilUtil::sendFailure($this->txt('poss_sync_err_path'), true);
-				$this->redirectToDefaultPage();
-			}
-		}
-
-		if(isset($_GET['node_id']) && (int)$_GET['node_id'])
-		{
-			$node_id = (int)$_GET['node_id'];
-			$this->getPlugin()->includeClass('models/class.ilQuestionSetPoolNode.php');
-			if(!ilQuestionSetPoolNode::exists($node_id))
-			{
-				ilUtil::sendFailure($this->txt('poss_sync_err_node'), true);
-				$this->redirectToDefaultPage();
-			}
-		}
-	}
-
-	/**
-	 * Public wrapper for permission checks
-	 * @param string $permission
-	 * @return bool
-	 */
-	public function hasPermission($permission)
-	{
-		return $this->checkPermissionBool($permission);
-	}
-
-	/**
-	 * Public wrapper for permission assumption
-	 * @param string $permission
-	 * @return bool
-	 */
-	public function ensurePermission($permission)
-	{
-		return $this->checkPermission($permission);
-	}
-
-	/**
-	 * 
-	 */
-	public function populateContentStyleBlock()
-	{
-		include_once("./Services/Style/Content/classes/class.ilObjStyleSheet.php");
-		$this->tpl->setCurrentBlock( "ContentStyle" );
-		$this->tpl->setVariable( "LOCATION_CONTENT_STYLESHEET",ilObjStyleSheet::getContentStylePath(0));
-		$this->tpl->parseCurrentBlock();
-
-		$this->tpl->addCss(ilUtil::getStyleSheetLocation("output", "test_print.css", "Modules/Test"), "print");
-		$this->tpl->addCss(ilUtil::getStyleSheetLocation("output", "ta.css", "Modules/Test"), "screen");
-	}
-
-	/**
-	 * 
-	 */
-	public function populateSyntaxStyleBlock()
-	{
-		$this->tpl->setCurrentBlock( "SyntaxStyle" );
-		$this->tpl->setVariable( "LOCATION_SYNTAX_STYLESHEET",ilObjStyleSheet::getSyntaxStylePath());
-		$this->tpl->parseCurrentBlock();
-	}
-
-	/**
-	 * Functions that must be overwritten
-	 */
-	public function getType()
-	{
-		require_once "./Customizing/global/plugins/Services/Repository/RepositoryObject/QuestionSetPool/classes/class.ilQuestionSetPoolPlugin.php";
-		return ilQuestionSetPoolPlugin::getPluginId();
-	}
-
-	/**
-	 * Cmd that will be redirected to after creation of a new object.
-	 */
-	public function getAfterCreationCmd()
-	{
-		return "ilQuestionSetPoolPropertiesGUI.edit";
-	}
-
-	public function getStandardCmd()
-	{
-		return "ilQuestionSetPoolSetsGUI.show";
-	}
-	
-	/**
-	 * @param string $type
-	 * @return array
-	 */
-	protected function initCreationForms($type)
-	{
-		return array(
-			self::CFORM_NEW => $this->initCreateForm($type),
-			self::CFORM_IMPORT => $this->initImportForm($type)
-		);
-	}
-
-	/**
-	 * @param string $type
-	 * @return ilPropertyFormGUI
-	 */
-	public function  initCreateForm($type)
-	{
-		$form = parent::initCreateForm($type);
-		// Add additional form elements for creation form here
-		return $form;
-	}
-	
-	/**
-	 * @param $a_new_type
-	 * @return ilPropertyFormGUI
-	 */
-	public function initImportForm($a_new_type)
-	{
-		$form =  parent::initImportForm($a_new_type); 
-		
-		// select question pool
-		include_once("./Modules/Test/classes/class.ilObjTest.php");
-		$tst = new ilObjTest();
-		$questionpools = $tst->getAvailableQuestionpools(TRUE, FALSE, TRUE, TRUE);
-		$this->getPlugin()->includeClass('class.ilQuestionSetPoolImporter.php');
-		$options = array(
-			ilQuestionSetPoolImporter::SINGLE_IMPORT_NEW_POOL => $this->lng->txt("assessment_new_pool"),
-			ilQuestionSetPoolImporter::SINGLE_IMPORT_NO_POOL  => $this->lng->txt('assessment_no_pool')
-		);
-
-		if (is_array($questionpools) && count($questionpools))
-		{
-			foreach ($questionpools as $key => $value)
-			{
-				$options[$key] = $value["title"];
-			}
-		}
-		$pool = new ilSelectInputGUI($this->lng->txt("select_questionpool"), "qpl");
-		$pool->setOptions($options);
-		$form->addItem($pool);
-		
-		return $form;
-	}
-	
-	/**
-	 *
-	 */
-	public function setTabs()
-	{
-		$this->tabs_gui->clearTargets();
-
-		if($this->checkPermissionBool('read'))
-		{
-			$this->tabs_gui->addTab('content', $this->txt('question_sets'), $this->ctrl->getLinkTarget($this, 'ilQuestionSetPoolSetsGUI.show'));
-		}
-
-		$this->addInfoTab();
-
-		if($this->checkPermissionBool('read') && $this->object->isSkillServiceEnabled() && ilObjQuestionSetPool::isSkillManagementGloballyActivated())
-		{
-			require_once 'Modules/TestQuestionPool/classes/class.ilAssQuestionSkillAssignmentsGUI.php';
-
-			$link = $this->ctrl->getLinkTargetByClass(
-				array('ilQuestionSetPoolSkillAdministrationGUI', 'ilAssQuestionSkillAssignmentsGUI'),
-				ilAssQuestionSkillAssignmentsGUI::CMD_SHOW_SKILL_QUEST_ASSIGNS
-			);
-
-			$this->tabs_gui->addTarget('tst_tab_competences', $link);
-		}
-
-		if($this->checkPermissionBool('write'))
-		{
-			$this->tabs_gui->addTab('properties', $this->lng->txt('properties'), $this->ctrl->getLinkTarget($this, 'ilQuestionSetPoolPropertiesGUI.edit'));
-			$this->tabs_gui->addTarget('meta_data', $this->ctrl->getLinkTargetByClass('ilmdeditorgui', ''), '', 'ilmdeditorgui');
-			$this->tabs_gui->addTarget("export", $this->ctrl->getLinkTargetByClass("ilquestionsetpoolexportgui", ""), "", "ilquestionsetpoolexportgui");
-		}
-
-		$this->addPermissionTab();
-	}
-
-	/**
-	 * @param string $a_sub_type
-	 * @param int    $a_sub_id
-	 * @return ilObjectListGUI|ilObjQuestionSetPoolListGUI
-	 */
-	protected function initHeaderAction($a_sub_type = null, $a_sub_id = null)
-	{
-		/**
-		 * @var $ilUser ilObjUser
-		 */
-		global $ilUser;
-
-		$lg = parent::initHeaderAction();
-		if($lg instanceof ilObjQuestionSetPoolListGUI)
-		{
-			if($ilUser->getId() != ANONYMOUS_USER_ID)
-			{
-				// Maybe handle notifications in future ...
-			}
-		}
-
-		return $lg;
-	}
-
-	/**
-	 * @see ilDesktopItemHandling::addToDesk()
-	 */
-	public function addToDeskObject()
-	{
-		/**
-		 * @var $ilSetting ilSetting
-		 * @var $lng       ilLanguage
-		 */
-		global $ilSetting, $lng;
-
-		if((int)$ilSetting->get('disable_my_offers'))
-		{
-			$this->ctrl->redirect($this);
-			return;
-		}
-
-		include_once './Services/PersonalDesktop/classes/class.ilDesktopItemGUI.php';
-		ilDesktopItemGUI::addToDesktop();
-		ilUtil::sendSuccess($lng->txt('added_to_desktop'), true);
-		$this->ctrl->redirect($this);
-	}
-
-	/**
-	 * @see ilDesktopItemHandling::removeFromDesk()
-	 */
-	public function removeFromDeskObject()
-	{
-		global $ilSetting, $lng;
-
-		if((int)$ilSetting->get('disable_my_offers'))
-		{
-			$this->ctrl->redirect($this);
-			return;
-		}
-
-		include_once './Services/PersonalDesktop/classes/class.ilDesktopItemGUI.php';
-		ilDesktopItemGUI::removeFromDesktop();
-		ilUtil::sendSuccess($lng->txt('removed_from_desktop'), true);
-		$this->ctrl->redirect($this);
-	}
+    /**
+     * @var ilObjQuestionSetPool
+     */
+    public $object;
+
+    public $plugin;
+    
+    /**
+     * @param string $cmd
+     * @return mixed
+     */
+    public function performCommand($cmd)
+    {
+        /**
+         * @var $ilTabs ilTabsGUI
+         * @var $tpl    ilTemplate
+         */
+        global $ilTabs, $tpl;
+
+        $tpl->setDescription($this->object->getDescription());
+
+        $this->lng->loadLanguageModule('assessment');
+        $tpl->addCss('./Customizing/global/plugins/Services/Repository/RepositoryObject/QuestionSetPool/templates/default/xqsp.css');
+
+        $next_class = $this->ctrl->getNextClass($this);
+        switch ($next_class) {
+            case 'ilquestionsetpoolskilladministrationgui':
+                require_once 'controllers/class.ilQuestionSetPoolSkillAdministrationGUI.php';
+                $this->prepareOutput();
+                $this->addHeaderAction();
+
+                $gui = new ilQuestionSetPoolSkillAdministrationGUI($this);
+                $this->ctrl->forwardCommand($gui);
+                break;
+
+            case 'ilmdeditorgui':
+                $this->checkPermission('write');
+                $md_gui = new ilMDEditorGUI($this->object->getId(), 0, $this->object->getType());
+                $md_gui->addObserver($this->object, 'MDUpdateListener', 'General');
+                $ilTabs->setTabActive('meta_data');
+                return $this->ctrl->forwardCommand($md_gui);
+                break;
+
+            case 'ilpublicuserprofilegui':
+                $profile_gui = new ilPublicUserProfileGUI($_GET['user']);
+                $profile_gui->setBackUrl($this->ctrl->getLinkTarget($this, 'showContent'));
+                $this->tpl->setContent($this->ctrl->forwardCommand($profile_gui));
+                break;
+
+            case 'ilcommonactiondispatchergui':
+                $gui = ilCommonActionDispatcherGUI::getInstanceFromAjaxCall();
+                $this->ctrl->forwardCommand($gui);
+                break;
+            case "ilquestionsetpoolexportgui":
+                $this->checkPermission('write');
+                $ilTabs->setTabActive('export');
+                $this->getPlugin()->includeClass('class.ilQuestionSetPoolExportGUI.php');
+                $exp_gui = new ilQuestionSetPoolExportGUI($this);
+                $exp_gui->addFormat('xml', $this->lng->txt('qpl_export_xml'));
+                $this->ctrl->forwardCommand($exp_gui);
+                break;
+            default:
+                switch ($cmd) {
+                    case 'redrawHeaderAction':
+                    case 'addToDesk':
+                    case 'removeFromDesk':
+                        if (in_array($cmd, array('addToDesk', 'removeFromDesk'))) {
+                            $cmd .= 'Object';
+                        }
+                        $this->checkPermission('read');
+                        $this->$cmd();
+                        break;
+
+                    default:
+                        $this->ensureEntityExistance();
+                        require_once "./Customizing/global/plugins/Services/Repository/RepositoryObject/QuestionSetPool/classes/dispatcher/class.ilPluginDispatcher.php";
+                        $dispatcher = ilPluginDispatcher::getInstance($this);
+                        $dispatcher->dispatch($cmd);
+                        break;
+                }
+                break;
+        }
+
+        $this->addHeaderAction();
+    }
+
+    protected function redirectToDefaultPage()
+    {
+        $this->ctrl->redirect($this);
+    }
+    
+    protected function ensureEntityExistance()
+    {
+        if (isset($_GET['set_id']) && (int) $_GET['set_id']) {
+            $set_id = (int) $_GET['set_id'];
+            $this->getPlugin()->includeClass('models/class.ilQuestionSetPoolSet.php');
+            if (!ilQuestionSetPoolSet::exists($set_id)) {
+                ilUtil::sendFailure($this->txt('poss_sync_err_set'), true);
+                $this->redirectToDefaultPage();
+            }
+        }
+
+        if (isset($_GET['path_id']) && (int) $_GET['path_id']) {
+            $path_id = (int) $_GET['path_id'];
+            $this->getPlugin()->includeClass('models/class.ilQuestionSetPoolPath.php');
+            if (!ilQuestionSetPoolPath::exists($path_id)) {
+                ilUtil::sendFailure($this->txt('poss_sync_err_path'), true);
+                $this->redirectToDefaultPage();
+            }
+        }
+
+        if (isset($_GET['node_id']) && (int) $_GET['node_id']) {
+            $node_id = (int) $_GET['node_id'];
+            $this->getPlugin()->includeClass('models/class.ilQuestionSetPoolNode.php');
+            if (!ilQuestionSetPoolNode::exists($node_id)) {
+                ilUtil::sendFailure($this->txt('poss_sync_err_node'), true);
+                $this->redirectToDefaultPage();
+            }
+        }
+    }
+
+    /**
+     * Public wrapper for permission checks
+     * @param string $permission
+     * @return bool
+     */
+    public function hasPermission($permission)
+    {
+        return $this->checkPermissionBool($permission);
+    }
+
+    /**
+     * Public wrapper for permission assumption
+     * @param string $permission
+     * @return bool
+     */
+    public function ensurePermission($permission)
+    {
+        return $this->checkPermission($permission);
+    }
+
+    /**
+     *
+     */
+    public function populateContentStyleBlock()
+    {
+        $this->tpl->setCurrentBlock("ContentStyle");
+        $this->tpl->setVariable("LOCATION_CONTENT_STYLESHEET", ilObjStyleSheet::getContentStylePath(0));
+        $this->tpl->parseCurrentBlock();
+
+        $this->tpl->addCss(ilUtil::getStyleSheetLocation("output", "test_print.css", "Modules/Test"), "print");
+        $this->tpl->addCss(ilUtil::getStyleSheetLocation("output", "ta.css", "Modules/Test"), "screen");
+    }
+
+    /**
+     *
+     */
+    public function populateSyntaxStyleBlock()
+    {
+        $this->tpl->setCurrentBlock("SyntaxStyle");
+        $this->tpl->setVariable("LOCATION_SYNTAX_STYLESHEET", ilObjStyleSheet::getSyntaxStylePath());
+        $this->tpl->parseCurrentBlock();
+    }
+
+    /**
+     * Functions that must be overwritten
+     */
+    public function getType()
+    {
+        require_once "./Customizing/global/plugins/Services/Repository/RepositoryObject/QuestionSetPool/classes/class.ilQuestionSetPoolPlugin.php";
+        return ilQuestionSetPoolPlugin::getPluginId();
+    }
+
+    /**
+     * Cmd that will be redirected to after creation of a new object.
+     */
+    public function getAfterCreationCmd()
+    {
+        return "ilQuestionSetPoolPropertiesGUI.edit";
+    }
+
+    public function getStandardCmd()
+    {
+        return "ilQuestionSetPoolSetsGUI.show";
+    }
+    
+    /**
+     * @param string $type
+     * @return array
+     */
+    protected function initCreationForms($type)
+    {
+        return array(
+            self::CFORM_NEW => $this->initCreateForm($type),
+            self::CFORM_IMPORT => $this->initImportForm($type)
+        );
+    }
+
+    /**
+     * @param string $type
+     * @return ilPropertyFormGUI
+     */
+    public function initCreateForm($type)
+    {
+        $form = parent::initCreateForm($type);
+        // Add additional form elements for creation form here
+        return $form;
+    }
+    
+    /**
+     * @param $a_new_type
+     * @return ilPropertyFormGUI
+     */
+    public function initImportForm($a_new_type)
+    {
+        $form = parent::initImportForm($a_new_type);
+        
+        // select question pool
+        include_once("./Modules/Test/classes/class.ilObjTest.php");
+        $tst = new ilObjTest();
+        $questionpools = $tst->getAvailableQuestionpools(true, false, true, true);
+        $this->getPlugin()->includeClass('class.ilQuestionSetPoolImporter.php');
+        $options = array(
+            ilQuestionSetPoolImporter::SINGLE_IMPORT_NEW_POOL => $this->lng->txt("assessment_new_pool"),
+            ilQuestionSetPoolImporter::SINGLE_IMPORT_NO_POOL => $this->lng->txt('assessment_no_pool')
+        );
+
+        if (is_array($questionpools) && count($questionpools)) {
+            foreach ($questionpools as $key => $value) {
+                $options[$key] = $value["title"];
+            }
+        }
+        $pool = new ilSelectInputGUI($this->lng->txt("select_questionpool"), "qpl");
+        $pool->setOptions($options);
+        $form->addItem($pool);
+        
+        return $form;
+    }
+    
+    /**
+     *
+     */
+    public function setTabs()
+    {
+        $this->tabs_gui->clearTargets();
+
+        if ($this->checkPermissionBool('read')) {
+            $this->tabs_gui->addTab('content', $this->txt('question_sets'), $this->ctrl->getLinkTarget($this, 'ilQuestionSetPoolSetsGUI.show'));
+        }
+
+        $this->addInfoTab();
+
+        if ($this->checkPermissionBool('read') && $this->object->isSkillServiceEnabled() && ilObjQuestionSetPool::isSkillManagementGloballyActivated()) {
+            $link = $this->ctrl->getLinkTargetByClass(
+                array('ilQuestionSetPoolSkillAdministrationGUI', 'ilAssQuestionSkillAssignmentsGUI'),
+                ilAssQuestionSkillAssignmentsGUI::CMD_SHOW_SKILL_QUEST_ASSIGNS
+            );
+
+            $this->tabs_gui->addTarget('tst_tab_competences', $link);
+        }
+
+        if ($this->checkPermissionBool('write')) {
+            $this->tabs_gui->addTab('properties', $this->lng->txt('properties'), $this->ctrl->getLinkTarget($this, 'ilQuestionSetPoolPropertiesGUI.edit'));
+            $this->tabs_gui->addTarget('meta_data', $this->ctrl->getLinkTargetByClass('ilmdeditorgui', ''), '', 'ilmdeditorgui');
+            $this->tabs_gui->addTarget("export", $this->ctrl->getLinkTargetByClass("ilquestionsetpoolexportgui", ""), "", "ilquestionsetpoolexportgui");
+        }
+
+        $this->addPermissionTab();
+    }
+
+    /**
+     * @param string $a_sub_type
+     * @param int    $a_sub_id
+     * @return ilObjectListGUI|ilObjQuestionSetPoolListGUI
+     */
+    protected function initHeaderAction($a_sub_type = null, $a_sub_id = null)
+    {
+        /**
+         * @var $ilUser ilObjUser
+         */
+        global $ilUser;
+
+        $lg = parent::initHeaderAction();
+        if ($lg instanceof ilObjQuestionSetPoolListGUI) {
+            if ($ilUser->getId() != ANONYMOUS_USER_ID) {
+                // Maybe handle notifications in future ...
+            }
+        }
+
+        return $lg;
+    }
 }

classes/class.ilObjQuestionSetPoolListGUI.php

 <?php
 /* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Repository/classes/class.ilObjectPluginListGUI.php';
-
 /**
  * Class ilObjQuestionSetPoolListGUI
  *
  * Date: 01.10.13
  * Time: 13:22
  * @author Thomas Joußen <tjoussen@databay.de>
- */ 
+ */
 class ilObjQuestionSetPoolListGUI extends ilObjectPluginListGUI
 {
-
-	public function getGuiClass()
-	{
-		return 'ilObj'. ilQuestionSetPoolPlugin::getName() . 'GUI';
-	}
-
-	public function initCommands()
-	{
-		$this->copy_enabled = true;
-
-		return array(
-			array(
-				'permission' => 'read',
-				'cmd' => 'infoScreen',
-				'default' => true
-			),
-			array(
-				'permission' => 'write',
-				'cmd' => 'ilQuestionSetPoolPropertiesGUI.edit',
-				'default' => false
-			)
-		);
-	}
-
-	public function initType()
-	{
-		require_once 'class.ilQuestionSetPoolPlugin.php';
-		$this->setType(ilQuestionSetPoolPlugin::getPluginId());
-	}
-
-	/**
-	 * @return array
-	 */
-	public function getProperties()
-	{
-		/**
-		 * @var $lng ilLanguage
-		 */
-		global $lng;
-
-		$props = array();
-		include_once "class.ilObjQuestionSetPoolAccess.php";
-
-		if (!ilObjQuestionSetPoolAccess::checkOnline($this->obj_id))
-		{
-			$props[] = array("alert" => true, "property" => $lng->txt("status"),
-							 "value" => $lng->txt("offline"));
-		}
-
-		return $props;
-	}
+    public function getGuiClass()
+    {
+        return 'ilObj' . ilQuestionSetPoolPlugin::getName() . 'GUI';
+    }
+
+    public function initCommands()
+    {
+        $this->copy_enabled = true;
+
+        return array(
+            array(
+                'permission' => 'read',
+                'cmd' => 'infoScreen',
+                'default' => true
+            ),
+            array(
+                'permission' => 'write',
+                'cmd' => 'ilQuestionSetPoolPropertiesGUI.edit',
+                'default' => false
+            )
+        );
+    }
+
+    public function initType()
+    {
+        require_once 'class.ilQuestionSetPoolPlugin.php';
+        $this->setType(ilQuestionSetPoolPlugin::getPluginId());
+    }
+
+    /**
+     * @return array
+     */
+    public function getProperties()
+    {
+        /**
+         * @var $lng ilLanguage
+         */
+        global $lng;
+
+        $props = array();
+        include_once "class.ilObjQuestionSetPoolAccess.php";
+
+        if (!ilObjQuestionSetPoolAccess::checkOnline($this->obj_id)) {
+            $props[] = array("alert" => true, "property" => $lng->txt("status"),
+                             "value" => $lng->txt("offline"));
+        }
+
+        return $props;
+    }
 }

classes/class.ilObjQuestionSetPoolXMLParser.php

 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Xml/classes/class.ilSaxParser.php';
-
 /**
  * Class ilObjQuestionSetPoolXMLParser
  * @author Nadia Matuschek <nmatuschek@databay.de>
  */
 class ilObjQuestionSetPoolXMLParser extends ilSaxParser
 {
-	/**
-	 * @var ilObjQuestionSetPool
-	 */
-	private $xqsp_obj;
-	
-	private $inSettingsTag;
-	
-	private $inMetaDataTag;
-	private $inMdGeneralTag;
-	
-	public $sets = array();
-	
-	private $questions = array();
-	private $paths = array();
-	private $nodes = array();
-	private $jump_conditions = array();
-	protected $importDirectory = '';
-	
-	/**
-	 * @param ilObjQuestionSetPool $xqsp_obj
-	 * @param                      $xmlFile
-	 */
-	public function __construct(ilObjQuestionSetPool $xqsp_obj, $xmlFile)
-	{
-		$this->xqsp_obj = $xqsp_obj;
-		
-		$this->inSettingsTag  = false;
-		$this->inMetaDataTag  = false;
-		$this->inMdGeneralTag = false;
-		
-		parent::__construct($xmlFile);
-	}
-	
-	/**
-	 * Set import directory
-	 *
-	 * @param	string	import directory
-	 */
-	public function setImportDirectory($a_val)
-	{
-		$this->importDirectory = $a_val;
-	}
-	
-	/**
-	 * Get import directory
-	 *
-	 * @return	string	import directory
-	 */
-	public function getImportDirectory()
-	{
-		return $this->importDirectory;
-	}
-	
-	/**
-	 * @param $xmlParser
-	 */
-	public function setHandlers($xmlParser)
-	{
-		xml_set_object($xmlParser, $this);
-		xml_set_element_handler($xmlParser, 'handlerBeginTag', 'handlerEndTag');
-		xml_set_character_data_handler($xmlParser, 'handlerCharacterData');
-	}
-	
-	/**
-	 * @param $xmlParser
-	 * @param $tagName
-	 * @param $tagAttributes
-	 */
-	public function handlerBeginTag($xmlParser, $tagName, $tagAttributes)
-	{
-		switch($tagName)
-		{
-			case 'MetaData':
-				$this->inMetaDataTag = true;
-				break;
-			
-			case 'General':
-				if($this->inMetaDataTag)
-				{
-					$this->inMdGeneralTag = true;
-				}
-				break;
-			
-			case 'Description':
-				if($this->inMetaDataTag && $this->inMdGeneralTag)
-				{
-					$this->cdata = '';
-				}
-				break;
-			
-			case 'Settings':
-				$this->inSettingsTag = true;
-				break;
-			
-			case 'Online':
-			case 'SkillService':
-				if($this->inSettingsTag)
-				{
-					$this->cdata = '';
-				}
-				break;
-			case 'SetId':
-			case 'SetTitle':
-			case 'SetDescription':
-			case 'OriginalId':
-				$this->cdata = '';
-				break;
-		}
-	}
-	
-	/**
-	 * @param $xmlParser
-	 * @param $tagName
-	 */
-	public function handlerEndTag($xmlParser, $tagName)
-	{
-		switch($tagName)
-		{
-			case 'MetaData':
-				$this->inMetaDataTag = false;
-				break;
-			
-			case 'General':
-				if($this->inMetaDataTag)
-				{
-					$this->inMdGeneralTag = false;
-				}
-				break;
-			
-			case 'Title':
-				if($this->inMetaDataTag && $this->inMdGeneralTag)
-				{
-					$this->xqsp_obj->setTitle(trim($this->cdata));
-					$this->cdata = '';
-				}
-				break;
-			
-			case 'Description':
-				if($this->inMetaDataTag && $this->inMdGeneralTag)
-				{
-					$this->xqsp_obj->setDescription(trim($this->cdata));
-					$this->cdata = '';
-				}
-				break;
-			
-			case 'Settings':
-				$this->inSettingsTag = false;
-				break;
-			
-			case 'Online':
-				$this->xqsp_obj->setOnline((bool)trim($this->cdata));
-				$this->cdata = '';
-				break;
-			
-			case 'SkillService':
-				$this->xqsp_obj->setSkillServiceEnabled((bool)trim($this->cdata));
-				$this->cdata = '';
-				break;
-			// sets	
-			case 'SetId':
-			case 'SetTitle':
-			case 'SetDescription':
-			case 'OriginalId':
-				$this->import_set[$tagName] = trim($this->cdata);
-				$this->cdata                = '';
-				break;
-			// question
-			case 'QuestionId':
-			case 'QuestionIndex':
-			case 'QuestionOriginalId':
-				$this->import_question[$tagName] = trim($this->cdata);
-				$this->cdata                     = '';
-				break;
-			// paths
-			case 'PathId':
-			case 'PathTitle':
-			case 'PathQuestionSetId':
-			case 'PathIndex':
-				$this->import_path[$tagName] = trim($this->cdata);
-				$this->cdata                 = '';
-				break;
-			//nodes
-			case 'NodeId':
-			case 'NodeQuestionId':
-			case 'NodePathId':
-			case 'NodeIndex':
-			case 'NodeInitialCondition':
-			case 'NodeDominantScoring':
-			case 'NodeTrueFeedback':
-			case 'NodeFalseFeedback':
-				$this->import_node[$tagName] = trim($this->cdata);
-				$this->cdata                 = '';
-				break;
-			// jump conditions 
-			case 'JumpConditionId':
-			case 'JumpConditionText':
-			case 'JumpConditionNodeId':
-			case 'JumpConditionQuestionId':
-			case 'JumpConditionRepetitions':
-			case 'JumpConditionSorting':
-			case 'JumpConditionTrueFeedback':
-			case 'JumpConditionTrueJumpFeedback':
-			case 'JumpConditionFalseFeedback':
-				$this->import_jump_condition[$tagName] = trim($this->cdata);
-				$this->cdata                           = '';
-				break;
-			case 'Set':
-				//'addSet';
-				$this->sets[]     = array($this->import_set, 'questions' => $this->questions, 'paths' => $this->paths);
-				$this->questions  = array();
-				$this->paths      = array();
-				$this->import_set = array();
-				break;
-			
-			case 'Question':
-				// addQuesion
-				$this->questions[]     = $this->import_question;
-				$this->import_question = array();
-				break;
-			
-			case 'Path':
-				// addPath
-				$this->paths[]     = array($this->import_path, 'nodes' => $this->nodes);
-				$this->nodes       = array();
-				$this->import_path = array();
-				break;
-			
-			case 'Node':
-				// addNode
-				$this->nodes[]         = array($this->import_node, 'jump_conditions' => $this->jump_conditions);
-				$this->jump_conditions = array();
-				$this->import_node     = array();
-				break;
-			
-			case 'JumpCondition':
-				// addJumpConditition
-				$this->jump_conditions[]     = $this->import_jump_condition;
-				$this->import_jump_condition = array();
-				break;
-		}
-	}
-	
-	public function handlerCharacterData($xmlParser, $charData)
-	{
-		if($charData != "\n")
-		{
-			// Replace multiple tabs with one space
-			$charData = preg_replace("/\t+/", " ", $charData);
-			
-			$this->cdata .= $charData;
-		}
-	}
-	
-	public function getQuestionSetPoolObject()
-	{
-		return $this->xqsp_obj;
-	}
-	
-	public function getSetsArray()
-	{
-		return $this->sets;
-	}
-}
+    /**
+     * @var ilObjQuestionSetPool
+     */
+    private $xqsp_obj;
+    
+    private $inSettingsTag;
+    
+    private $inMetaDataTag;
+    private $inMdGeneralTag;
+    
+    public $sets = array();
+    
+    private $questions = array();
+    private $paths = array();
+    private $nodes = array();
+    private $jump_conditions = array();
+    protected $importDirectory = '';
+    
+    /**
+     * @param ilObjQuestionSetPool $xqsp_obj
+     * @param                      $xmlFile
+     */
+    public function __construct(ilObjQuestionSetPool $xqsp_obj, $xmlFile)
+    {
+        $this->xqsp_obj = $xqsp_obj;
+        
+        $this->inSettingsTag = false;
+        $this->inMetaDataTag = false;
+        $this->inMdGeneralTag = false;
+        
+        parent::__construct($xmlFile);
+    }
+    
+    /**
+     * Set import directory
+     *
+     * @param	string	import directory
+     */
+    public function setImportDirectory($a_val)
+    {
+        $this->importDirectory = $a_val;
+    }
+    
+    /**
+     * Get import directory
+     *
+     * @return	string	import directory
+     */
+    public function getImportDirectory()
+    {
+        return $this->importDirectory;
+    }
+    
+    /**
+     * @param $xmlParser
+     */
+    public function setHandlers($xmlParser)
+    {
+        xml_set_object($xmlParser, $this);
+        xml_set_element_handler($xmlParser, 'handlerBeginTag', 'handlerEndTag');
+        xml_set_character_data_handler($xmlParser, 'handlerCharacterData');
+    }
+    
+    /**
+     * @param $xmlParser
+     * @param $tagName
+     * @param $tagAttributes
+     */
+    public function handlerBeginTag($xmlParser, $tagName, $tagAttributes)
+    {
+        switch ($tagName) {
+            case 'MetaData':
+                $this->inMetaDataTag = true;
+                break;
+            
+            case 'General':
+                if ($this->inMetaDataTag) {
+                    $this->inMdGeneralTag = true;
+                }
+                break;
+            
+            case 'Description':
+                if ($this->inMetaDataTag && $this->inMdGeneralTag) {
+                    $this->cdata = '';
+                }
+                break;
+            
+            case 'Settings':
+                $this->inSettingsTag = true;
+                break;
+            
+            case 'Online':
+            case 'SkillService':
+                if ($this->inSettingsTag) {
+                    $this->cdata = '';
+                }
+                break;
+            case 'SetId':
+            case 'SetTitle':
+            case 'SetDescription':
+            case 'OriginalId':
+                $this->cdata = '';
+                break;
+        }
+    }
+    
+    /**
+     * @param $xmlParser
+     * @param $tagName
+     */
+    public function handlerEndTag($xmlParser, $tagName)
+    {
+        switch ($tagName) {
+            case 'MetaData':
+                $this->inMetaDataTag = false;
+                break;
+            
+            case 'General':
+                if ($this->inMetaDataTag) {
+                    $this->inMdGeneralTag = false;
+                }
+                break;
+            
+            case 'Title':
+                if ($this->inMetaDataTag && $this->inMdGeneralTag) {
+                    $this->xqsp_obj->setTitle(trim($this->cdata));
+                    $this->cdata = '';
+                }
+                break;
+            
+            case 'Description':
+                if ($this->inMetaDataTag && $this->inMdGeneralTag) {
+                    $this->xqsp_obj->setDescription(trim($this->cdata));
+                    $this->cdata = '';
+                }
+                break;
+            
+            case 'Settings':
+                $this->inSettingsTag = false;
+                break;
+            
+            case 'Online':
+                $this->xqsp_obj->setOnline((bool) trim($this->cdata));
+                $this->cdata = '';
+                break;
+            
+            case 'SkillService':
+                $this->xqsp_obj->setSkillServiceEnabled((bool) trim($this->cdata));
+                $this->cdata = '';
+                break;
+            // sets
+            case 'SetId':
+            case 'SetTitle':
+            case 'SetDescription':
+            case 'OriginalId':
+                $this->import_set[$tagName] = trim($this->cdata);
+                $this->cdata = '';
+                break;
+            // question
+            case 'QuestionId':
+            case 'QuestionIndex':
+            case 'QuestionOriginalId':
+                $this->import_question[$tagName] = trim($this->cdata);
+                $this->cdata = '';
+                break;
+            // paths
+            case 'PathId':
+            case 'PathTitle':
+            case 'PathQuestionSetId':
+            case 'PathIndex':
+                $this->import_path[$tagName] = trim($this->cdata);
+                $this->cdata = '';
+                break;
+            //nodes
+            case 'NodeId':
+            case 'NodeQuestionId':
+            case 'NodePathId':
+            case 'NodeIndex':
+            case 'NodeInitialCondition':
+            case 'NodeDominantScoring':
+            case 'NodeTrueFeedback':
+            case 'NodeFalseFeedback':
+                $this->import_node[$tagName] = trim($this->cdata);
+                $this->cdata = '';
+                break;
+            // jump conditions
+            case 'JumpConditionId':
+            case 'JumpConditionText':
+            case 'JumpConditionNodeId':
+            case 'JumpConditionQuestionId':
+            case 'JumpConditionRepetitions':
+            case 'JumpConditionSorting':
+            case 'JumpConditionTrueFeedback':
+            case 'JumpConditionTrueJumpFeedback':
+            case 'JumpConditionFalseFeedback':
+                $this->import_jump_condition[$tagName] = trim($this->cdata);
+                $this->cdata = '';
+                break;
+            case 'Set':
+                //'addSet';
+                $this->sets[] = array($this->import_set, 'questions' => $this->questions, 'paths' => $this->paths);
+                $this->questions = array();
+                $this->paths = array();
+                $this->import_set = array();
+                break;
+            
+            case 'Question':
+                // addQuesion
+                $this->questions[] = $this->import_question;
+                $this->import_question = array();
+                break;
+            
+            case 'Path':
+                // addPath
+                $this->paths[] = array($this->import_path, 'nodes' => $this->nodes);
+                $this->nodes = array();
+                $this->import_path = array();
+                break;
+            
+            case 'Node':
+                // addNode
+                $this->nodes[] = array($this->import_node, 'jump_conditions' => $this->jump_conditions);
+                $this->jump_conditions = array();
+                $this->import_node = array();
+                break;
+            
+            case 'JumpCondition':
+                // addJumpConditition
+                $this->jump_conditions[] = $this->import_jump_condition;
+                $this->import_jump_condition = array();
+                break;
+        }
+    }
+    
+    public function handlerCharacterData($xmlParser, $charData)
+    {
+        if ($charData != "\n") {
+            // Replace multiple tabs with one space
+            $charData = preg_replace("/\t+/", " ", $charData);
+            
+            $this->cdata .= $charData;
+        }
+    }
+    
+    public function getQuestionSetPoolObject()
+    {
+        return $this->xqsp_obj;
+    }
+    
+    public function getSetsArray()
+    {
+        return $this->sets;
+    }
+}
\ No newline at end of file

classes/class.ilQuestionSetPoolExportGUI.php

 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Export/classes/class.ilExportGUI.php';
-
 /**
  * Export User Interface Class
  * @author  Nadia Matuschek <nmatuschek@databay.de>
  */
 class ilQuestionSetPoolExportGUI extends ilExportGUI
 {
-	/**
-	 * {@inheritdoc}
-	 */
-	protected function buildExportTableGUI()
-	{
-		require_once 'tables/class.ilQuestionSetPoolExportTableGUI.php';
-		$table = new ilQuestionSetPoolExportTableGUI($this, 'listExportFiles', $this->obj);
-		return $table;
-	}
-	
-	/**
-	 * Download file
-	 */
-	public function download()
-	{
-		if(isset($_GET['file']) && $_GET['file'])
-		{
-			$_POST['file'] = array($_GET['file']);
-		}
-		parent::download();
-	}
-}
+    /**
+     * {@inheritdoc}
+     */
+    protected function buildExportTableGUI()
+    {
+        require_once 'tables/class.ilQuestionSetPoolExportTableGUI.php';
+        $table = new ilQuestionSetPoolExportTableGUI($this, 'listExportFiles', $this->obj);
+        return $table;
+    }
+    
+    /**
+     * Download file
+     */
+    public function download()
+    {
+        if (isset($_GET['file']) && $_GET['file']) {
+            $_POST['file'] = array($_GET['file']);
+        }
+        parent::download();
+    }
+}
\ No newline at end of file

classes/class.ilQuestionSetPoolExporter.php

 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-include_once './Services/Export/classes/class.ilXmlExporter.php';
-include_once './Services/Xml/classes/class.ilXmlWriter.php';
-include_once './Modules/TestQuestionPool/classes/class.ilObjQuestionPool.php';
-
 /**
  * Class ilQuestionSetPoolExporter
  * author Nadia Matuschek <nmatuschek@databay.de>
  */
 class ilQuestionSetPoolExporter extends ilXmlExporter
 {
-	/**
-	 * @var ilXmlWriter
-	 */
-	protected $xml_writer = NULL;
-	
-	/**
-	 * @var string
-	 */
-	protected $export_dir = '';
-	
-	/**
-	 * @var string
-	 */
-	protected $subdir = '';
-	
-	/**
-	 * @var string
-	 */
-	protected $filename = '';
-	
-	/**
-	 * @var string
-	 */
-	protected $qti_filename = '';
-	
-	/**
-	 * @var string
-	 */
-	protected $zipfilename = '';
-	
-	/**
-	 * @var array with question ids to export
-	 */
-	protected $questions = array();
-	
-	/**
-	 * @var ilLog
-	 */
-	protected $expLog = NULL;
-	
-	/**
-	 * Initialisation
-	 */
-	function init()
-	{
-	}
-	
-	/**
-	 * ilQuestionSetPoolExporter constructor.
-	 */
-	public function __construct()
-	{
-		$this->plugin_object = ilPlugin::getPluginObject('Services', 'Repository', 'robj', 'QuestionSetPool');
-	}
-	
-	/**
-	 *
-	 */
-	public function initLogFile()
-	{
-		include_once "./Services/Logging/classes/class.ilLog.php";
-		$this->expLog = new ilLog($this->getExportDirectory(), "export.log");
-		$this->expLog->delete();
-		$this->expLog->setLogFormat("");
-		$this->expLog->write(date("[y-m-d H:i:s] ") . "Start Export");
-	}
-	
-	/**
-	 * creates data directory for export files
-	 * (data_dir/qpl_data/qpl_<id>/export, depending on data
-	 * directory that is set in ILIAS setup/ini)
-	 */
-	function createExportDirectory()
-	{
-		global $ilErr;
-		
-		include_once "./Services/Utilities/classes/class.ilUtil.php";
-		$xqsp_data_dir = ilUtil::getDataDir() . "/xqsp_data";
-		ilUtil::makeDir($xqsp_data_dir);
-		if(!is_writable($xqsp_data_dir))
-		{
-			$ilErr->raiseError("Questionpool Data Directory (" . $xqsp_data_dir . ") not writeable.", $ilErr->FATAL);
-		}
-		
-		// create learning module directory (data_dir/lm_data/lm_<id>)
-		$xqsp_dir = $xqsp_data_dir . "/xqsp_" . $this->object->getId();
-		ilUtil::makeDir($xqsp_dir);
-		if(!@is_dir($xqsp_dir))
-		{
-			$ilErr->raiseError("Creation of QuestionSetPool Directory failed. xqsp_", $ilErr->FATAL);
-		}
-		//		// create Export subdirectory (data_dir/lm_data/lm_<id>/Export)
-		//		ilUtil::makeDir($this->getExportDirectory('xls'));
-		//		if(!@is_dir($this->getExportDirectory('xls')))
-		//		{
-		//			$ilErr->raiseError("Creation of Export Directory failed. xls", $ilErr->FATAL);
-		//		}
-		ilUtil::makeDir($this->getExportDirectory('zip'));
-		if(!@is_dir($this->getExportDirectory('zip')))
-		{
-			$ilErr->raiseError("Creation of Export Directory failed. zip", $ilErr->FATAL);
-		}
-		
-	}
-	
-	/**
-	 * get export directory of questionsetpool
-	 * @param string $type
-	 * @return string
-	 */
-	function getExportDirectory($type = "")
-	{
-		include_once "./Services/Utilities/classes/class.ilUtil.php";
-		switch($type)
-		{
-			case 'xml':
-				include_once("./Services/Export/classes/class.ilExport.php");
-				$export_dir = ilExport::_getExportDirectory($this->object->getId(), $type, $this->object->getType());
-				break;
+    /**
+     * @var ilXmlWriter
+     */
+    protected $xml_writer = null;
+    
+    /**
+     * @var string
+     */
+    protected $export_dir = '';
+    
+    /**
+     * @var string
+     */
+    protected $subdir = '';
+    
+    /**
+     * @var string
+     */
+    protected $filename = '';
+    
+    /**
+     * @var string
+     */
+    protected $qti_filename = '';
+    
+    /**
+     * @var string
+     */
+    protected $zipfilename = '';
+    
+    /**
+     * @var array with question ids to export
+     */
+    protected $questions = array();
+    
+    /**
+     * @var ilLog
+     */
+    protected $expLog = null;
+    
+    /**
+     * Initialisation
+     */
+    public function init()
+    {
+    }
+    
+    /**
+     * ilQuestionSetPoolExporter constructor.
+     */
+    public function __construct()
+    {
+        $this->plugin_object = ilPlugin::getPluginObject('Services', 'Repository', 'robj', 'QuestionSetPool');
+    }
+    
+    /**
+     *
+     */
+    public function initLogFile()
+    {
+        $this->expLog = new ilLog($this->getExportDirectory(), "export.log");
+        $this->expLog->delete();
+        $this->expLog->setLogFormat("");
+        $this->expLog->write(date("[y-m-d H:i:s] ") . "Start Export");
+    }
+    
+    /**
+     * creates data directory for export files
+     * (data_dir/qpl_data/qpl_<id>/export, depending on data
+     * directory that is set in ILIAS setup/ini)
+     */
+    public function createExportDirectory()
+    {
+        global $ilErr;
+        
+        $xqsp_data_dir = ilUtil::getDataDir() . "/xqsp_data";
+        ilUtil::makeDir($xqsp_data_dir);
+        if (!is_writable($xqsp_data_dir)) {
+            $ilErr->raiseError("Questionpool Data Directory (" . $xqsp_data_dir . ") not writeable.", $ilErr->FATAL);
+        }
+        
+        // create learning module directory (data_dir/lm_data/lm_<id>)
+        $xqsp_dir = $xqsp_data_dir . "/xqsp_" . $this->object->getId();
+        ilUtil::makeDir($xqsp_dir);
+        if (!@is_dir($xqsp_dir)) {
+            $ilErr->raiseError("Creation of QuestionSetPool Directory failed. xqsp_", $ilErr->FATAL);
+        }
+        //		// create Export subdirectory (data_dir/lm_data/lm_<id>/Export)
+        //		ilUtil::makeDir($this->getExportDirectory('xls'));
+        //		if(!@is_dir($this->getExportDirectory('xls')))
+        //		{
+        //			$ilErr->raiseError("Creation of Export Directory failed. xls", $ilErr->FATAL);
+        //		}
+        ilUtil::makeDir($this->getExportDirectory('zip'));
+        if (!@is_dir($this->getExportDirectory('zip'))) {
+            $ilErr->raiseError("Creation of Export Directory failed. zip", $ilErr->FATAL);
+        }
+    }
+    
+    /**
+     * get export directory of questionsetpool
+     * @param string $type
+     * @return string
+     */
+    public function getExportDirectory($type = "")
+    {
+        switch ($type) {
+            case 'xml':
+                $export_dir = ilExport::_getExportDirectory($this->object->getId(), $type, $this->object->getType());
+                break;
 //			case 'xls':
-			case 'zip':
-				$export_dir = ilUtil::getDataDir()."/xqsp_data"."/xqsp_".$this->object->getId()."/export_$type";
-				break;
-		
-			default:
-				$export_dir = ilUtil::getDataDir()."/xqsp_data"."/xqsp_".$this->object->getId()."/export";
-				break;
-		}
-		return $export_dir;
-	}
+            case 'zip':
+                $export_dir = ilUtil::getDataDir() . "/xqsp_data" . "/xqsp_" . $this->object->getId() . "/export_$type";
+                break;
+        
+            default:
+                $export_dir = ilUtil::getDataDir() . "/xqsp_data" . "/xqsp_" . $this->object->getId() . "/export";
+                break;
+        }
+        return $export_dir;
+    }
 
-	/**
-	 *
-	 */
-	public function exportPagesXML()
-	{
-		global $ilBench;
-		
-		$this->mob_ids  = array();
-		$this->file_ids = array();
-		
-		$attrs         = array();
-		$attrs["Type"] = "QuestionSetPool_FormATest";
-		$this->xml_writer->xmlStartTag("ContentObject", $attrs);
-		
-		// MetaData
-		$this->exportXMLMetaData();
-		
-		// Settings
-		$this->exportXMLSettings();
-		
-		// Question Sets
-		$this->exportQuestionSets();
-		
-		// PageObjects
-		$this->expLog->write(date("[y-m-d H:i:s] ") . "Start Export Page Objects");
-		$ilBench->start("ContentObjectExport", "exportPageObjects");
-		$this->qpl_obj->exportXMLPageObjects($this->xml_writer, IL_INST_ID, $this->expLog, $this->questions);
-		$ilBench->stop("ContentObjectExport", "exportPageObjects");
-		$this->expLog->write(date("[y-m-d H:i:s] ") . "Finished Export Page Objects");
-		
-		// add media objects which were added with tiny mce
-		$this->expLog->write(date("[y-m-d H:i:s] ") . "Start Export Media Objects");
-		$export_dir = $this->exp->export_run_dir;
-		$ilBench->start("ContentObjectExport", "exportMediaObjects");
-		
-		$this->exportXHTMLMediaObjects($export_dir);
-		$ilBench->stop("ContentObjectExport", "exportMediaObjects");
-		$this->expLog->write(date("[y-m-d H:i:s] ") . "Finished Export Media Objects");
-		
-		if(is_array($this->qpl_obj->file_ids) && count($this->qpl_obj->file_ids) > 0)
-		{
-			// FileItems
-			$this->expLog->write(date("[y-m-d H:i:s] ") . "Start Export File Items");
-			$ilBench->start("ContentObjectExport", "exportFileItems");
-			$this->exportFileItems($this->export_dir . "/" . $this->subdir, $this->expLog);
-			$ilBench->stop("ContentObjectExport", "exportFileItems");
-			$this->expLog->write(date("[y-m-d H:i:s] ") . "Finished Export File Items");
-		}
-		$this->xml_writer->xmlEndTag("ContentObject");
-	}
-	
-	/**
-	 * export content objects meta data to xml (see ilias_co.dtd)
-	 */
-	function exportXMLMetaData()
-	{
-		include_once("Services/MetaData/classes/class.ilMD2XML.php");
-		$md2xml = new ilMD2XML($this->object->getId(), 0, $this->object->getType());
-		$md2xml->setExportMode(true);
-		$md2xml->startExport();
-		$this->xml_writer->appendXML($md2xml->getXML());
-	}
-	
-	/**
-	 *
-	 */
-	private function exportXMLSettings()
-	{
-		$this->xml_writer->xmlStartTag('Settings');
-		
-		$this->xml_writer->xmlElement('Title', null, (string)$this->object->getTitle());
-		$this->xml_writer->xmlElement('Description', null, (string)$this->object->getDescription());
-		$this->xml_writer->xmlElement('Online', null, (int)$this->object->isOnline());
-		$this->xml_writer->xmlElement('SkillService', null, (int)$this->object->isSkillServiceEnabled());
-		
-		$this->xml_writer->xmlEndTag('Settings');
-	}
-	
-	/**
-	 *
-	 */
-	protected function exportQuestionSets()
-	{
-		$this->plugin_object = ilQuestionSetPoolPlugin::getInstance();
-		$this->plugin_object->includeClass('models/class.ilQuestionSetPoolSet.php');
-		$this->plugin_object->includeClass('models/class.ilQuestionSetPoolPath.php');
-		$this->plugin_object->includeClass('models/class.ilQuestionSetPoolNode.php');
-		$this->plugin_object->includeClass('models/class.ilQuestionSetPoolJumpCondition.php');
-		
-		$setlist = $this->object->getSetList();
-		$sets    = array();
-		$sets    = $setlist->loadData();
-		
-		$this->xml_writer->xmlStartTag('QuestionSets');
-		foreach($sets as $set_index => $set_data)
-		{
-			$set = new ilQuestionSetPoolSet((int)$set_data['id']);
-			$set->read();
-			
-			$this->xml_writer->xmlStartTag('Set');
-			$this->xml_writer->xmlElement('SetId', null, (int)$set->getId());
-			$this->xml_writer->xmlElement('SetTitle', null, (string)$set->getTitle());
-			$this->xml_writer->xmlElement('SetDescription', null, (string)$set->getDescription());
-			
-			$this->xml_writer->xmlElement('OriginalId', null, (int)$set->getOriginalId());
-			
-			// Export QuestionList 
-			$this->exportQuestionList($set->getQuestionList());
-			
-			// Export Paths
-			$this->exportPathList($set->getPathList());
-			
-			$this->xml_writer->xmlEndTag('Set');
-		}
-		
-		$this->xml_writer->xmlEndTag('QuestionSets');
-	}
-	
-	/**
-	 * @param ilQuestionSetPoolSetQuestionList $questionList
-	 */
-	protected function exportQuestionList(ilQuestionSetPoolSetQuestionList $questionList)
-	{
-		$questions = array();
-		$questions = $questionList->loadData();
-		$this->xml_writer->xmlStartTag('Questions');
-		foreach($questions as $question_index => $question)
-		{
-			$this->xml_writer->xmlStartTag('Question');
-			$this->xml_writer->xmlElement('QuestionId', null, $question['question_id']);
-			$this->xml_writer->xmlElement('QuestionIndex', null, $question['question_index']);
-			$this->xml_writer->xmlElement('QuestionOriginalId', null, $question['original_id']);
-			$this->xml_writer->xmlEndTag('Question');
-			$this->questions[$question['question_id']] = $question['question_id'];
-		}
-		$this->xml_writer->xmlEndTag('Questions');
-		if(is_array($this->questions) &&  count($this->questions) > 0)
-		{
-			$this->exportQuestions();
-		}
-	}
-	
-	/**
-	 * @param ilQuestionSetPoolPathList $pathlist
-	 */
-	protected function exportPathList(ilQuestionSetPoolPathList $pathList)
-	{
-		$paths = array();
-		$paths = $pathList->loadData();
-		
-		$this->xml_writer->xmlStartTag('Paths');
-		foreach($paths as $path_index => $path_data)
-		{
-			$path = new ilQuestionSetPoolPath();
-			$path->setId($path_data['id']);
-			$path->read();
-			$this->xml_writer->xmlStartTag('Path');
-			$this->xml_writer->xmlElement('PathId', null, (int)$path->getId());
-			$this->xml_writer->xmlElement('PathTitle', null, (string)$path->getTitle());
-			$this->xml_writer->xmlElement('PathQuestionSetId', null, (int)$path_data['questionset_fi']);
-			$this->xml_writer->xmlElement('PathIndex', null, $path->getIndex());
-			
-			// Nodes 
-			$this->exportNodeList($path->getNodes());
-			
-			$this->xml_writer->xmlEndTag('Path');
-		}
-		$this->xml_writer->xmlEndTag('Paths');
-	}
-	
-	/**
-	 * @param ilQuestionSetPoolNodeList $nodelist
-	 */
-	protected function exportNodeList(ilQuestionSetPoolNodeList $nodeList)
-	{
-		$nodes = array();
-		$nodes = $nodeList->loadData();
-		
-		$this->xml_writer->xmlStartTag('Nodes');
-		foreach($nodes as $node_index => $node_data)
-		{
-			$node = new ilQuestionSetPoolNode((int)$node_data['id']);
-			$node->read();
-			$this->xml_writer->xmlStartTag('Node');
-			
-			$this->xml_writer->xmlElement('NodeId', null, (int)$node->getId());
-			$this->xml_writer->xmlElement('NodeQuestionId', null, (int)$node_data['question_fi']);
-			$this->xml_writer->xmlElement('NodePathId', null, (int)$node_data['path_fi']);
-			$this->xml_writer->xmlElement('NodeIndex', null, (int)$node->getIndex());
-			
-			$this->xml_writer->xmlElement('NodeInitialCondition', null, $node->getInitialCondition());
-			$this->xml_writer->xmlElement('NodeDominantScoring', null, $node->getDominantScoring());
-			
-			$this->xml_writer->xmlElement('NodeTrueFeedback', null, $node->getTrueFeedback());
-			$this->xml_writer->xmlElement('NodeFalseFeedback', null, $node->getFalseFeedback());
-			
-			// Jump Conditions 
-			$this->exportJumpConditions($node->getJumpConditionList());
-			
-			$this->xml_writer->xmlEndTag('Node');
-		}
-		$this->xml_writer->xmlEndTag('Nodes');
-	}
-	
-	/**
-	 * @param ilQuestionSetPoolJumpConditionList $jumpConditionList
-	 */
-	protected function exportJumpConditions(ilQuestionSetPoolJumpConditionList $jumpConditionList)
-	{
-		$jumpConditions = array();
-		$jumpConditions = $jumpConditionList->getData();
-		
-		$this->xml_writer->xmlStartTag('JumpConditions');
-		
-		foreach($jumpConditions as $jmp_con_index => $jumpCondition_data)
-		{
-			$jumpCondition = new ilQuestionSetPoolJumpCondition();
-			$jumpCondition->setId($jumpCondition_data['id']);
-			$jumpCondition->read();
-			
-			$this->xml_writer->xmlStartTag('JumpCondition');
-			$this->xml_writer->xmlElement('JumpConditionId', null, (int)$jumpCondition->getId());
-			$this->xml_writer->xmlElement('JumpConditionText', null, (string)$jumpCondition->getJumpCondition());
-			
-			$this->xml_writer->xmlElement('JumpConditionNodeId', null, (int)$jumpCondition_data['node_fi']);
-			$this->xml_writer->xmlElement('JumpConditionQuestionId', null, $jumpCondition_data['question_fi']);
-			
-			$this->xml_writer->xmlElement('JumpConditionRepetitions', null, $jumpCondition->getRepititions());
-			$this->xml_writer->xmlElement('JumpConditionSorting', null, $jumpCondition->getSorting());
-			$this->xml_writer->xmlElement('JumpConditionTrueFeedback', null, $jumpCondition->getTrueFeedback());
-			$this->xml_writer->xmlElement('JumpConditionTrueJumpFeedback', null, $jumpCondition->getTrueJumpFeedback());
-			$this->xml_writer->xmlElement('JumpConditionFalseFeedback', null, $jumpCondition->getFalseFeedback());
-			
-			$this->xml_writer->xmlEndTag('JumpCondition');
-		}
-		
-		$this->xml_writer->xmlEndTag('JumpConditions');
-	}
-	
-	/**
-	 * Default ilias questionpool export
-	 */
-	protected function exportQuestions()
-	{
-		// write qti file
-		ilUtil::makeDirParents($this->export_dir);
-		$qti_file = fopen($this->export_dir . "/" . $this->qti_filename, "w");
-		fwrite($qti_file, $this->qpl_obj->questionsToXML($this->questions));
-		fclose($qti_file);
-	}
-	
-	/**
-	 * @param $a_export_dir
-	 */
-	function exportXHTMLMediaObjects($a_export_dir)
-	{
-		include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
-		ilUtil::makeDirParents($a_export_dir."/objects/");
-		
-		foreach($this->questions as $question_id)
-		{
-			$mobs = ilObjMediaObject::_getMobsOfObject("qpl:html", $question_id);
-			foreach($mobs as $mob)
-			{
-				if(ilObjMediaObject::_exists($mob))
-				{
-					$mob_obj = new ilObjMediaObject($mob);
-					$mob_obj->exportFiles($a_export_dir);
-					unset($mob_obj);
-				}
-			}
-		}
-	}
-	
-	/**
-	 * Main export method for single object export AND export within an container (crs, cat, ...)
-	 * @param $a_entity
-	 * @param $a_schema_version
-	 * @param $a_id
-	 * @return string
-	 */
-	public function getXmlRepresentation($a_entity, $a_schema_version, $a_id)
-	{
-		$ref_id = current(ilObject::_getAllReferences($a_id));
-		
-		$date               = time();
-		$this->export_dir   = $this->getAbsoluteExportDirectory();
-		$this->subdir       = $date . "__" . IL_INST_ID . "__" . "xqsp" . "_" . $a_id;
-		$this->filename     = $this->subdir . ".xml";
-		$this->qti_filename ="xqsp_qti.xml";
-		
-		$this->plugin_object->includeClass('class.ilObjQuestionSetPool.php');
-		
-		$this->object     = new ilObjQuestionSetPool($ref_id);
-		$this->xml_writer = new ilXmlWriter();
-		
-		$this->qpl_obj = new ilObjQuestionPool();
-		// get Log File
-		ilUtil::makeDirParents($this->getExportDirectory());
-		$this->initLogFile();
-		$this->exportPagesXML();
-		
-		return $this->xml_writer->xmlDumpMem();
-	}
-	
-	/**
-	 * @param $a_entity
-	 * @return array
-	 */
-	public function getValidSchemaVersions($a_entity)
-	{
-		return array(
-			'5.1.0' => array(
-				'namespace'    => 'http://www.ilias.de/',
-				'xsd_file'     => 'xqsp_5_1.xsd',
-				'uses_dataset' => false,
-				'min'          => '5.1.0',
-				'max'          => '5.1.999'
-			)
-		);
-	}
-	
-	/**
-	 * @param $a_entity
-	 * @param $a_target_release
-	 * @param array $a_ids
-	 * @return array
-	 */
-	public function getXmlExportHeadDependencies($a_entity, $a_target_release, $a_ids)
-	{
-		if("xqsp" == $a_entity)
-		{
-			// Array von QSP obj_ids
-			$qpl_obj_ids = array();
-			
-			global $ilDB, $ilObjDataCache;
-			//qs.id, qs.questionsetpool_fi, qst.question_fi, qpl_qst.obj_fi, 
-			$res = $ilDB->query('
+    /**
+     *
+     */
+    public function exportPagesXML()
+    {
+        global $ilBench;
+        
+        $this->mob_ids = array();
+        $this->file_ids = array();
+        
+        $attrs = array();
+        $attrs["Type"] = "QuestionSetPool_FormATest";
+        $this->xml_writer->xmlStartTag("ContentObject", $attrs);
+        
+        // MetaData
+        $this->exportXMLMetaData();
+        
+        // Settings
+        $this->exportXMLSettings();
+        
+        // Question Sets
+        $this->exportQuestionSets();
+        
+        // PageObjects
+        $this->expLog->write(date("[y-m-d H:i:s] ") . "Start Export Page Objects");
+        $ilBench->start("ContentObjectExport", "exportPageObjects");
+        $this->qpl_obj->exportXMLPageObjects($this->xml_writer, IL_INST_ID, $this->expLog, $this->questions);
+        $ilBench->stop("ContentObjectExport", "exportPageObjects");
+        $this->expLog->write(date("[y-m-d H:i:s] ") . "Finished Export Page Objects");
+        
+        // add media objects which were added with tiny mce
+        $this->expLog->write(date("[y-m-d H:i:s] ") . "Start Export Media Objects");
+        $export_dir = $this->exp->export_run_dir;
+        $ilBench->start("ContentObjectExport", "exportMediaObjects");
+        
+        $this->exportXHTMLMediaObjects($export_dir);
+        $ilBench->stop("ContentObjectExport", "exportMediaObjects");
+        $this->expLog->write(date("[y-m-d H:i:s] ") . "Finished Export Media Objects");
+        
+        if (is_array($this->qpl_obj->file_ids) && count($this->qpl_obj->file_ids) > 0) {
+            // FileItems
+            $this->expLog->write(date("[y-m-d H:i:s] ") . "Start Export File Items");
+            $ilBench->start("ContentObjectExport", "exportFileItems");
+            $this->exportFileItems($this->export_dir . "/" . $this->subdir, $this->expLog);
+            $ilBench->stop("ContentObjectExport", "exportFileItems");
+            $this->expLog->write(date("[y-m-d H:i:s] ") . "Finished Export File Items");
+        }
+        $this->xml_writer->xmlEndTag("ContentObject");
+    }
+    
+    /**
+     * export content objects meta data to xml (see ilias_co.dtd)
+     */
+    public function exportXMLMetaData()
+    {
+        $md2xml = new ilMD2XML($this->object->getId(), 0, $this->object->getType());
+        $md2xml->setExportMode(true);
+        $md2xml->startExport();
+        $this->xml_writer->appendXML($md2xml->getXML());
+    }
+    
+    /**
+     *
+     */
+    private function exportXMLSettings()
+    {
+        $this->xml_writer->xmlStartTag('Settings');
+        
+        $this->xml_writer->xmlElement('Title', null, (string) $this->object->getTitle());
+        $this->xml_writer->xmlElement('Description', null, (string) $this->object->getDescription());
+        $this->xml_writer->xmlElement('Online', null, (int) $this->object->isOnline());
+        $this->xml_writer->xmlElement('SkillService', null, (int) $this->object->isSkillServiceEnabled());
+        
+        $this->xml_writer->xmlEndTag('Settings');
+    }
+    
+    /**
+     *
+     */
+    protected function exportQuestionSets()
+    {
+        $this->plugin_object = ilQuestionSetPoolPlugin::getInstance();
+        $this->plugin_object->includeClass('models/class.ilQuestionSetPoolSet.php');
+        $this->plugin_object->includeClass('models/class.ilQuestionSetPoolPath.php');
+        $this->plugin_object->includeClass('models/class.ilQuestionSetPoolNode.php');
+        $this->plugin_object->includeClass('models/class.ilQuestionSetPoolJumpCondition.php');
+        
+        $setlist = $this->object->getSetList();
+        $sets = array();
+        $sets = $setlist->loadData();
+        
+        $this->xml_writer->xmlStartTag('QuestionSets');
+        foreach ($sets as $set_index => $set_data) {
+            $set = new ilQuestionSetPoolSet((int) $set_data['id']);
+            $set->read();
+            
+            $this->xml_writer->xmlStartTag('Set');
+            $this->xml_writer->xmlElement('SetId', null, (int) $set->getId());
+            $this->xml_writer->xmlElement('SetTitle', null, (string) $set->getTitle());
+            $this->xml_writer->xmlElement('SetDescription', null, (string) $set->getDescription());
+            
+            $this->xml_writer->xmlElement('OriginalId', null, (int) $set->getOriginalId());
+            
+            // Export QuestionList
+            $this->exportQuestionList($set->getQuestionList());
+            
+            // Export Paths
+            $this->exportPathList($set->getPathList());
+            
+            $this->xml_writer->xmlEndTag('Set');
+        }
+        
+        $this->xml_writer->xmlEndTag('QuestionSets');
+    }
+    
+    /**
+     * @param ilQuestionSetPoolSetQuestionList $questionList
+     */
+    protected function exportQuestionList(ilQuestionSetPoolSetQuestionList $questionList)
+    {
+        $questions = array();
+        $questions = $questionList->loadData();
+        $this->xml_writer->xmlStartTag('Questions');
+        foreach ($questions as $question_index => $question) {
+            $this->xml_writer->xmlStartTag('Question');
+            $this->xml_writer->xmlElement('QuestionId', null, $question['question_id']);
+            $this->xml_writer->xmlElement('QuestionIndex', null, $question['question_index']);
+            $this->xml_writer->xmlElement('QuestionOriginalId', null, $question['original_id']);
+            $this->xml_writer->xmlEndTag('Question');
+            $this->questions[$question['question_id']] = $question['question_id'];
+        }
+        $this->xml_writer->xmlEndTag('Questions');
+        if (is_array($this->questions) && count($this->questions) > 0) {
+            $this->exportQuestions();
+        }
+    }
+    
+    /**
+     * @param ilQuestionSetPoolPathList $pathlist
+     */
+    protected function exportPathList(ilQuestionSetPoolPathList $pathList)
+    {
+        $paths = array();
+        $paths = $pathList->loadData();
+        
+        $this->xml_writer->xmlStartTag('Paths');
+        foreach ($paths as $path_index => $path_data) {
+            $path = new ilQuestionSetPoolPath();
+            $path->setId($path_data['id']);
+            $path->read();
+            $this->xml_writer->xmlStartTag('Path');
+            $this->xml_writer->xmlElement('PathId', null, (int) $path->getId());
+            $this->xml_writer->xmlElement('PathTitle', null, (string) $path->getTitle());
+            $this->xml_writer->xmlElement('PathQuestionSetId', null, (int) $path_data['questionset_fi']);
+            $this->xml_writer->xmlElement('PathIndex', null, $path->getIndex());
+            
+            // Nodes
+            $this->exportNodeList($path->getNodes());
+            
+            $this->xml_writer->xmlEndTag('Path');
+        }
+        $this->xml_writer->xmlEndTag('Paths');
+    }
+    
+    /**
+     * @param ilQuestionSetPoolNodeList $nodelist
+     */
+    protected function exportNodeList(ilQuestionSetPoolNodeList $nodeList)
+    {
+        $nodes = array();
+        $nodes = $nodeList->loadData();
+        
+        $this->xml_writer->xmlStartTag('Nodes');
+        foreach ($nodes as $node_index => $node_data) {
+            $node = new ilQuestionSetPoolNode((int) $node_data['id']);
+            $node->read();
+            $this->xml_writer->xmlStartTag('Node');
+            
+            $this->xml_writer->xmlElement('NodeId', null, (int) $node->getId());
+            $this->xml_writer->xmlElement('NodeQuestionId', null, (int) $node_data['question_fi']);
+            $this->xml_writer->xmlElement('NodePathId', null, (int) $node_data['path_fi']);
+            $this->xml_writer->xmlElement('NodeIndex', null, (int) $node->getIndex());
+            
+            $this->xml_writer->xmlElement('NodeInitialCondition', null, $node->getInitialCondition());
+            $this->xml_writer->xmlElement('NodeDominantScoring', null, $node->getDominantScoring());
+            
+            $this->xml_writer->xmlElement('NodeTrueFeedback', null, $node->getTrueFeedback());
+            $this->xml_writer->xmlElement('NodeFalseFeedback', null, $node->getFalseFeedback());
+            
+            // Jump Conditions
+            $this->exportJumpConditions($node->getJumpConditionList());
+            
+            $this->xml_writer->xmlEndTag('Node');
+        }
+        $this->xml_writer->xmlEndTag('Nodes');
+    }
+    
+    /**
+     * @param ilQuestionSetPoolJumpConditionList $jumpConditionList
+     */
+    protected function exportJumpConditions(ilQuestionSetPoolJumpConditionList $jumpConditionList)
+    {
+        $jumpConditions = array();
+        $jumpConditions = $jumpConditionList->getData();
+        
+        $this->xml_writer->xmlStartTag('JumpConditions');
+        
+        foreach ($jumpConditions as $jmp_con_index => $jumpCondition_data) {
+            $jumpCondition = new ilQuestionSetPoolJumpCondition();
+            $jumpCondition->setId($jumpCondition_data['id']);
+            $jumpCondition->read();
+            
+            $this->xml_writer->xmlStartTag('JumpCondition');
+            $this->xml_writer->xmlElement('JumpConditionId', null, (int) $jumpCondition->getId());
+            $this->xml_writer->xmlElement('JumpConditionText', null, (string) $jumpCondition->getJumpCondition());
+            
+            $this->xml_writer->xmlElement('JumpConditionNodeId', null, (int) $jumpCondition_data['node_fi']);
+            $this->xml_writer->xmlElement('JumpConditionQuestionId', null, $jumpCondition_data['question_fi']);
+            
+            $this->xml_writer->xmlElement('JumpConditionRepetitions', null, $jumpCondition->getRepititions());
+            $this->xml_writer->xmlElement('JumpConditionSorting', null, $jumpCondition->getSorting());
+            $this->xml_writer->xmlElement('JumpConditionTrueFeedback', null, $jumpCondition->getTrueFeedback());
+            $this->xml_writer->xmlElement('JumpConditionTrueJumpFeedback', null, $jumpCondition->getTrueJumpFeedback());
+            $this->xml_writer->xmlElement('JumpConditionFalseFeedback', null, $jumpCondition->getFalseFeedback());
+            
+            $this->xml_writer->xmlEndTag('JumpCondition');
+        }
+        
+        $this->xml_writer->xmlEndTag('JumpConditions');
+    }
+    
+    /**
+     * Default ilias questionpool export
+     */
+    protected function exportQuestions()
+    {
+        // write qti file
+        ilUtil::makeDirParents($this->export_dir);
+        $qti_file = fopen($this->export_dir . "/" . $this->qti_filename, "w");
+        fwrite($qti_file, $this->qpl_obj->questionsToXML($this->questions));
+        fclose($qti_file);
+    }
+    
+    /**
+     * @param $a_export_dir
+     */
+    public function exportXHTMLMediaObjects($a_export_dir)
+    {
+        ilUtil::makeDirParents($a_export_dir . "/objects/");
+        
+        foreach ($this->questions as $question_id) {
+            $mobs = ilObjMediaObject::_getMobsOfObject("qpl:html", $question_id);
+            foreach ($mobs as $mob) {
+                if (ilObjMediaObject::_exists($mob)) {
+                    $mob_obj = new ilObjMediaObject($mob);
+                    $mob_obj->exportFiles($a_export_dir);
+                    unset($mob_obj);
+                }
+            }
+        }
+    }
+    
+    /**
+     * Main export method for single object export AND export within an container (crs, cat, ...)
+     * @param $a_entity
+     * @param $a_schema_version
+     * @param $a_id
+     * @return string
+     */
+    public function getXmlRepresentation($a_entity, $a_schema_version, $a_id)
+    {
+        $ref_id = current(ilObject::_getAllReferences($a_id));
+        
+        $date = time();
+        $this->export_dir = $this->getAbsoluteExportDirectory();
+        $this->subdir = $date . "__" . IL_INST_ID . "__" . "xqsp" . "_" . $a_id;
+        $this->filename = $this->subdir . ".xml";
+        $this->qti_filename = "xqsp_qti.xml";
+        
+        $this->plugin_object->includeClass('class.ilObjQuestionSetPool.php');
+        
+        $this->object = new ilObjQuestionSetPool($ref_id);
+        $this->xml_writer = new ilXmlWriter();
+        
+        $this->qpl_obj = new ilObjQuestionPool();
+        // get Log File
+        ilUtil::makeDirParents($this->getExportDirectory());
+        $this->initLogFile();
+        $this->exportPagesXML();
+        
+        return $this->xml_writer->xmlDumpMem();
+    }
+    
+    /**
+     * @param $a_entity
+     * @return array
+     */
+    public function getValidSchemaVersions($a_entity)
+    {
+        return array(
+            '5.1.0' => array(
+                'namespace' => 'http://www.ilias.de/',
+                'xsd_file' => 'xqsp_5_1.xsd',
+                'uses_dataset' => false,
+                'min' => '5.1.0',
+                'max' => '5.1.999'
+            )
+        );
+    }
+    
+    /**
+     * @param $a_entity
+     * @param $a_target_release
+     * @param array $a_ids
+     * @return array
+     */
+    public function getXmlExportHeadDependencies($a_entity, $a_target_release, $a_ids)
+    {
+        if ("xqsp" == $a_entity) {
+            // Array von QSP obj_ids
+            $qpl_obj_ids = array();
+            
+            global $ilDB, $ilObjDataCache;
+            //qs.id, qs.questionsetpool_fi, qst.question_fi, qpl_qst.obj_fi,
+            $res = $ilDB->query('
 			SELECT qpl_qst.question_id, qpl_qst.original_id  
 			FROM rep_robj_xqsp_qs qs
 			INNER JOIN rep_robj_xqsp_qs_qst qst ON qs.id = qst.questionset_fi
 			INNER JOIN qpl_questions qpl_qst ON qst.question_fi = qpl_qst.question_id
 			WHERE ' . $ilDB->in('qs.questionsetpool_fi', $a_ids, false, 'integer'));
-			
-			$org_qst_ids = array();
-			while($row = $ilDB->fetchAssoc($res))
-			{
-				$ids[] = $row;
-				if($row['original_id'] !== NULL)
-				{
-					$org_qst_ids[] = $row['original_id'];
-				}
-				else
-				{
-					$org_qst_ids[] = $row['question_id'];
-				}
-			}
-			
-			if(is_array($org_qst_ids) && count($org_qst_ids) > 0)
-			{
-				$res_2 = $ilDB->query('SELECT obj_fi FROM qpl_questions WHERE '. $ilDB->in('question_id',$org_qst_ids, false, 'integer'));
-				
-				while($row = $ilDB->fetchAssoc($res_2))
-				{
-					if($ilObjDataCache->lookupType($row['obj_fi']) == 'qpl')
-					{
-						$qpl_obj_ids[$row['obj_fi']] = $row['obj_fi'];
-					}
-				}
-			}
-			
-			return array (array(
-				"component" => "Modules/TestQuestionPool",
-				"entity" => "qpl",
-				"ids" => array_unique($qpl_obj_ids)));
-		}
-		
-		return parent::getXmlExportHeadDependencies();		
-	}
+            
+            $org_qst_ids = array();
+            while ($row = $ilDB->fetchAssoc($res)) {
+                $ids[] = $row;
+                if ($row['original_id'] !== null) {
+                    $org_qst_ids[] = $row['original_id'];
+                } else {
+                    $org_qst_ids[] = $row['question_id'];
+                }
+            }
+            
+            if (is_array($org_qst_ids) && count($org_qst_ids) > 0) {
+                $res_2 = $ilDB->query('SELECT obj_fi FROM qpl_questions WHERE ' . $ilDB->in('question_id', $org_qst_ids, false, 'integer'));
+                
+                while ($row = $ilDB->fetchAssoc($res_2)) {
+                    if ($ilObjDataCache->lookupType($row['obj_fi']) == 'qpl') {
+                        $qpl_obj_ids[$row['obj_fi']] = $row['obj_fi'];
+                    }
+                }
+            }
+            
+            return array(array(
+                "component" => "Modules/TestQuestionPool",
+                "entity" => "qpl",
+                "ids" => array_unique($qpl_obj_ids)));
+        }
+        
+        return parent::getXmlExportHeadDependencies();
+    }
 }

classes/class.ilQuestionSetPoolImporter.php

 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-include_once("./Services/Export/classes/class.ilXmlImporter.php");
-include_once("./Modules/TestQuestionPool/classes/class.ilObjQuestionPool.php");
-
 /**
  * Class ilQuestionSetPoolImporter
  * @author Nadia Matuschek <nmatuschek@databay.de>
  */
 class ilQuestionSetPoolImporter extends ilXmlImporter
 {
-	const SINGLE_IMPORT_NEW_POOL = -1;
-	const SINGLE_IMPORT_NO_POOL  = -2;
+    const SINGLE_IMPORT_NEW_POOL = -1;
+    const SINGLE_IMPORT_NO_POOL = -2;
 
-	/**
-	 * @var ilObjQuestionPool
-	 */
-	protected $qpl_obj = NULL;
-	
-	protected $is_single_import = true;
-	
-	/**
-	 * @var int[]
-	 */
-	protected static $pool_by_parent_id = array();
-	
-	protected $current_parent_ref_id = 0;
-	
-	/**
-	 * @var null
-	 */
-	protected $xml_file = NULL;
-	/**
-	 * @var null
-	 */
-	protected $qti_file = NULL;
-	
-	/**
-	 * @var array
-	 */
-	protected $qpl_qst_mapping = array();
-	
-	/**
-	 * @param $xml_file
-	 */
-	private function setXmlFile($xml_file)
-	{
-		$this->xml_file = $xml_file;
-	}
-	
-	public function getXmlFile()
-	{
-		return $this->xml_file;
-	}
-	
-	/**
-	 * @param $qti_file
-	 */
-	public function setQtiFile($qti_file)
-	{
-		$this->qti_file = $qti_file;
-	}
-	
-	public function getQtiFile()
-	{
-		return $this->qti_file;
-	}
-	
-	/**
-	 * ilQuestionSetPoolImporter constructor.
-	 */
-	public function __construct()
-	{
-		$this->plugin_object = ilQuestionSetPoolPlugin::getInstance();
-		$this->plugin_object->includeClass('models/class.ilQuestionSetPoolSet.php');
-		$this->plugin_object->includeClass('models/class.ilQuestionSetPoolPath.php');
-		$this->plugin_object->includeClass('models/class.ilQuestionSetPoolNode.php');
-		$this->plugin_object->includeClass('models/class.ilQuestionSetPoolJumpCondition.php');
-	}
-	
-	public function init()
-	{
-		$qti_path = $this->getImportDirectory().'/Plugins/xqsp/set_1/expDir_1';
-		$qti_file = $qti_path.'/xqsp_qti.xml';
-		$xml_file = $this->getImportDirectory().'/Plugins/xqsp/set_1/export.xml';
+    /**
+     * @var ilObjQuestionPool
+     */
+    protected $qpl_obj = null;
+    
+    protected $is_single_import = true;
+    
+    /**
+     * @var int[]
+     */
+    protected static $pool_by_parent_id = array();
+    
+    protected $current_parent_ref_id = 0;
+    
+    /**
+     * @var null
+     */
+    protected $xml_file = null;
+    /**
+     * @var null
+     */
+    protected $qti_file = null;
+    
+    /**
+     * @var array
+     */
+    protected $qpl_qst_mapping = array();
+    
+    /**
+     * @param $xml_file
+     */
+    private function setXmlFile($xml_file)
+    {
+        $this->xml_file = $xml_file;
+    }
+    
+    public function getXmlFile()
+    {
+        return $this->xml_file;
+    }
+    
+    /**
+     * @param $qti_file
+     */
+    public function setQtiFile($qti_file)
+    {
+        $this->qti_file = $qti_file;
+    }
+    
+    public function getQtiFile()
+    {
+        return $this->qti_file;
+    }
+    
+    /**
+     * ilQuestionSetPoolImporter constructor.
+     */
+    public function __construct()
+    {
+        $this->plugin_object = ilQuestionSetPoolPlugin::getInstance();
+        $this->plugin_object->includeClass('models/class.ilQuestionSetPoolSet.php');
+        $this->plugin_object->includeClass('models/class.ilQuestionSetPoolPath.php');
+        $this->plugin_object->includeClass('models/class.ilQuestionSetPoolNode.php');
+        $this->plugin_object->includeClass('models/class.ilQuestionSetPoolJumpCondition.php');
+    }
+    
+    public function init()
+    {
+        $qti_path = $this->getImportDirectory() . '/Plugins/xqsp/set_1/expDir_1';
+        $qti_file = $qti_path . '/xqsp_qti.xml';
+        $xml_file = $this->getImportDirectory() . '/Plugins/xqsp/set_1/export.xml';
 
-		$this->validateXmlFile($xml_file);
-		$this->setQtiFile($qti_file);
-	}
-	
-	
-	/**
-	 * @param $xml_file
-	 */
-	public function validateXmlFile($xml_file)
-	{
-		$this->plugin_object->includeClass('class.ilQuestionSetPoolXmlValidator.php');
-		$validator = new ilQuestionSetPoolXmlValidator();
-		$validator->setXsdFile('/xml/xqsp_5_1.xsd');
-		$validator->setXmlFile($xml_file);
-		$validator->validate();
-		$this->setXmlFile($xml_file);
-		return true;
-	}
-	
-	/**
-	 * 
-	 */
-	public function createImportDirectory()
-	{
-		global $ilErr;
-		
-		include_once "./Services/Utilities/classes/class.ilUtil.php";
-		$xqsp_data_dir = ilUtil::getDataDir()."/xqsp_data";
-		ilUtil::makeDir($xqsp_data_dir);
-		
-		if(!is_writable($xqsp_data_dir))
-		{
-			$ilErr->raiseError("QuestionSetPool Data Directory (".$xqsp_data_dir.") not writeable.", $ilErr->error_obj->FATAL);
-		}
-		
-		// create QuestionSetPool directory (data_dir/xqsp_data/xqsp_import)
-		$import_dir = $xqsp_data_dir."/xqsp_import";
-		ilUtil::makeDir($import_dir);
-		if(!@is_dir($import_dir))
-		{
-			$ilErr->raiseError("Creation of QuestionSetPool import directory failed.", $ilErr->error_obj->FATAL);
-		}
-		
-		$this->setImportDirectory($import_dir);
-	}
-	
-	public function initializeQplObject($id)
-	{
-		if($id <= 0)
-		{
-			$this->qpl_obj = $this->createQplObject();
-		}	
-		else
-		{
-			$this->qpl_obj = new ilObjQuestionPool($id, false);
-			$this->qpl_obj->read(true);
-		}
-	}	
-	
-	/**
-	 * Creates a new questionpool object
-	 * 
-	 * copied from ilObjQuestionPoolGUI->importVerifiedFileObject()
-	 */
-	public function createQplObject()
-	{
-		// create new questionpool object
-		$qpl_obj = new ilObjQuestionPool(0, true);
-		// set type of questionpool object
-		$qpl_obj->setType('qpl');
-		// set title of questionpool object to "dummy"
-		$qpl_obj->setTitle("dummy");
-		// set description of questionpool object
-		$qpl_obj->setDescription("questionpool creation");
-		// set online
-		$qpl_obj->setOnline(true);
-		// create the questionpool class in the ILIAS database (object_data table)
-		$qpl_obj->create(true);
-		// create a reference for the questionpool object in the ILIAS database (object_reference table)
-		$qpl_obj->createReference();
-		
-		$qpl_obj->update();
-		$qpl_obj->saveToDb();
-		return $qpl_obj;
-	}
-	
-	/**
-	 * Import questions to QPL questionpool
-	 */
-	protected function parseQtiFile()
-	{
-		//@important do not delete this $_SESSION handling!!
-		include_once "./Modules/TestQuestionPool/classes/class.ilObjQuestionPool.php";
-		$tmp_dir = ilObjQuestionPool::_getImportDirectory();
-		ilObjQuestionPool::_setImportDirectory($this->getImportDirectoryBase());
+        $this->validateXmlFile($xml_file);
+        $this->setQtiFile($qti_file);
+    }
+    
+    
+    /**
+     * @param $xml_file
+     */
+    public function validateXmlFile($xml_file)
+    {
+        $this->plugin_object->includeClass('class.ilQuestionSetPoolXmlValidator.php');
+        $validator = new ilQuestionSetPoolXmlValidator();
+        $validator->setXsdFile('/xml/xqsp_5_1.xsd');
+        $validator->setXmlFile($xml_file);
+        $validator->validate();
+        $this->setXmlFile($xml_file);
+        return true;
+    }
+    
+    /**
+     *
+     */
+    public function createImportDirectory()
+    {
+        global $ilErr;
+        
+        $xqsp_data_dir = ilUtil::getDataDir() . "/xqsp_data";
+        ilUtil::makeDir($xqsp_data_dir);
+        
+        if (!is_writable($xqsp_data_dir)) {
+            $ilErr->raiseError("QuestionSetPool Data Directory (" . $xqsp_data_dir . ") not writeable.", $ilErr->error_obj->FATAL);
+        }
+        
+        // create QuestionSetPool directory (data_dir/xqsp_data/xqsp_import)
+        $import_dir = $xqsp_data_dir . "/xqsp_import";
+        ilUtil::makeDir($import_dir);
+        if (!@is_dir($import_dir)) {
+            $ilErr->raiseError("Creation of QuestionSetPool import directory failed.", $ilErr->error_obj->FATAL);
+        }
+        
+        $this->setImportDirectory($import_dir);
+    }
+    
+    public function initializeQplObject($id)
+    {
+        if ($id <= 0) {
+            $this->qpl_obj = $this->createQplObject();
+        } else {
+            $this->qpl_obj = new ilObjQuestionPool($id, false);
+            $this->qpl_obj->read(true);
+        }
+    }
+    
+    /**
+     * Creates a new questionpool object
+     *
+     * copied from ilObjQuestionPoolGUI->importVerifiedFileObject()
+     */
+    public function createQplObject()
+    {
+        // create new questionpool object
+        $qpl_obj = new ilObjQuestionPool(0, true);
+        // set type of questionpool object
+        $qpl_obj->setType('qpl');
+        // set title of questionpool object to "dummy"
+        $qpl_obj->setTitle("dummy");
+        // set description of questionpool object
+        $qpl_obj->setDescription("questionpool creation");
+        // set online
+        $qpl_obj->setOnline(true);
+        // create the questionpool class in the ILIAS database (object_data table)
+        $qpl_obj->create(true);
+        // create a reference for the questionpool object in the ILIAS database (object_reference table)
+        $qpl_obj->createReference();
+        
+        $qpl_obj->update();
+        $qpl_obj->saveToDb();
+        return $qpl_obj;
+    }
+    
+    /**
+     * Import questions to QPL questionpool
+     */
+    protected function parseQtiFile()
+    {
+        //@important do not delete this $_SESSION handling!!
+        $tmp_dir = ilObjQuestionPool::_getImportDirectory();
+        ilObjQuestionPool::_setImportDirectory($this->getImportDirectoryBase());
 
-		$tmp_subdir = $_SESSION["qpl_import_subdir"];
-		$_SESSION["qpl_import_subdir"] = basename($this->getImportDirectory());
+        $tmp_subdir = $_SESSION["qpl_import_subdir"];
+        $_SESSION["qpl_import_subdir"] = basename($this->getImportDirectory());
 
-		// start parsing of QTI files
-		include_once "./Services/QTI/classes/class.ilQTIParser.php";
-		$qtiParser = new ilQTIParser($this->getQtiFile(), IL_MO_PARSE_QTI, $this->xqsp_obj->getId());
-		$result = $qtiParser->startParsing();
-		$this->addQuestionMapping($qtiParser->getImportMapping());
+        // start parsing of QTI files
+        $qtiParser = new ilQTIParser($this->getQtiFile(), IL_MO_PARSE_QTI, $this->xqsp_obj->getId());
+        $result = $qtiParser->startParsing();
+        $this->addQuestionMapping($qtiParser->getImportMapping());
 
-		ilObjQuestionPool::_setImportDirectory($tmp_dir);
-		$_SESSION["qpl_import_subdir"] = $tmp_subdir;
-	}
-	
-	protected function addQuestionMapping($qtiParser_import_mapping)
-	{
-		foreach($qtiParser_import_mapping as $question_ident => $pool_qst_ident)
-		{
-			$exp_ident = explode('_qst_', $question_ident);
-			$old_qst_id = end($exp_ident);
-			$new_qst_id = $pool_qst_ident['pool'];
-			$this->qpl_qst_mapping[$old_qst_id] = $new_qst_id; 
-		}
-	}
+        ilObjQuestionPool::_setImportDirectory($tmp_dir);
+        $_SESSION["qpl_import_subdir"] = $tmp_subdir;
+    }
+    
+    protected function addQuestionMapping($qtiParser_import_mapping)
+    {
+        foreach ($qtiParser_import_mapping as $question_ident => $pool_qst_ident) {
+            $exp_ident = explode('_qst_', $question_ident);
+            $old_qst_id = end($exp_ident);
+            $new_qst_id = $pool_qst_ident['pool'];
+            $this->qpl_qst_mapping[$old_qst_id] = $new_qst_id;
+        }
+    }
 
-	/**
-	 * @param array $set_data
-	 * @param array $set_questions
-	 * @param array $set_paths
-	 */
-	public function importQuestionSet($set_data, $set_questions, $set_paths, $a_mapping)
-	{
-		$set = new ilQuestionSetPoolSet();
-		$set->setContainerObjId($this->xqsp_obj->getId());
-		$set->setTitle($set_data['SetTitle']);
-		$set->setDescription($set_data['SetDescription']);
-		$set->setOriginalId($set_data['OriginialId']);
+    /**
+     * @param array $set_data
+     * @param array $set_questions
+     * @param array $set_paths
+     */
+    public function importQuestionSet($set_data, $set_questions, $set_paths, $a_mapping)
+    {
+        $set = new ilQuestionSetPoolSet();
+        $set->setContainerObjId($this->xqsp_obj->getId());
+        $set->setTitle($set_data['SetTitle']);
+        $set->setDescription($set_data['SetDescription']);
+        $set->setOriginalId($set_data['OriginialId']);
 
-		$set->update();
+        $set->update();
 
-		$this->addSetMapping($set_data['SetId'], $set->getId());
+        $this->addSetMapping($set_data['SetId'], $set->getId());
 
-		foreach($set_questions as $set_question)
-		{
-			$original_question_id = $a_mapping->getMapping('Modules/TestQuestionPool', 'quest', $set_question['QuestionOriginalId']);
-			if($original_question_id)
-			{
-				if(!assQuestion::_questionExistsInPool($original_question_id))
-				{
-					$original_question_id = NULL;
-				}
-			}
+        foreach ($set_questions as $set_question) {
+            $original_question_id = $a_mapping->getMapping('Modules/TestQuestionPool', 'quest', $set_question['QuestionOriginalId']);
+            if ($original_question_id) {
+                if (!assQuestion::_questionExistsInPool($original_question_id)) {
+                    $original_question_id = null;
+                }
+            }
 
-			$copy_id = $set->getQuestionList()->import($this->qpl_qst_mapping[$set_question['QuestionId']], $original_question_id);
-			$this->qpl_qst_mapping[$set_question['QuestionId']] = $copy_id;
+            $copy_id = $set->getQuestionList()->import($this->qpl_qst_mapping[$set_question['QuestionId']], $original_question_id);
+            $this->qpl_qst_mapping[$set_question['QuestionId']] = $copy_id;
 
-			if($original_question_id == 0 || $this->is_single_import)
-			{
-				$this->qpl_qst_mapping['new_qpl'][$set_question['QuestionId']] = $copy_id;
-				if($set_question['QuestionOriginalId'])
-				{
-					$a_mapping->addMapping('Plugins/xqsp', 'org_qst_id', $set_question['QuestionOriginalId'], $copy_id);
-				}
-			}
-			else
-			{
-				$this->qpl_qst_mapping['new_qpl'][$set_question['QuestionId']] = $original_question_id;
-			}
-		}
+            if ($original_question_id == 0 || $this->is_single_import) {
+                $this->qpl_qst_mapping['new_qpl'][$set_question['QuestionId']] = $copy_id;
+                if ($set_question['QuestionOriginalId']) {
+                    $a_mapping->addMapping('Plugins/xqsp', 'org_qst_id', $set_question['QuestionOriginalId'], $copy_id);
+                }
+            } else {
+                $this->qpl_qst_mapping['new_qpl'][$set_question['QuestionId']] = $original_question_id;
+            }
+        }
 
-		foreach($set_paths as $set_path)
-		{
-			$path = new ilQuestionSetPoolPath();
-			$path->setSet($set);
-			$path->setTitle($set_path[0]['PathTitle']);
-			$path->import();
+        foreach ($set_paths as $set_path) {
+            $path = new ilQuestionSetPoolPath();
+            $path->setSet($set);
+            $path->setTitle($set_path[0]['PathTitle']);
+            $path->import();
 
-			$this->addPathMapping($set_data[0]['PathId'], $path->getId());
+            $this->addPathMapping($set_data[0]['PathId'], $path->getId());
 
-			$nodes = $set_path['nodes'];
-			$this->importNodes($nodes, $path);
-		}
-	}
-	
-	/**
-	 * @param array                 $nodes
-	 * @param ilQuestionSetPoolPath $path
-	 */
-	protected function importNodes($nodes, ilQuestionSetPoolPath $path)
-	{
-		foreach($nodes as $node_data)
-		{
-			$node = new ilQuestionSetPoolNode();
-			$node->setQuestion(assQuestion::_instantiateQuestion($this->qpl_qst_mapping[$node_data[0]['NodeQuestionId']]));
-			$node->setPath($path);
-			$node->setInitialCondition($node_data[0]['NodeInitialCondition']);
-			if(strlen($node_data[0]['NodeDominantScoring']))
-			{
-				$node->setDominantScoring($node_data[0]['NodeDominantScoring']);
-			}
-			$node->setTrueFeedback($node_data[0]['NodeTrueFeedback']);
-			$node->setFalseFeedback($node_data[0]['NodeFalseFeedback']);
-			
-			$node->import();
-			
-			$this->addNodeMapping($node_data[0]['NodeId'], $node->getId());
-			
-			$jump_conditions = $node_data['jump_conditions'];
-			if(is_array($jump_conditions) && count($jump_conditions) == 0)
-			{
-				continue 1;
-			}
-			$this->importJumpConditions($jump_conditions, $node);
-		}
-	}
-	
-	/**
-	 * @param array                 $jump_conditions
-	 * @param ilQuestionSetPoolNode $node
-	 */
-	protected function importJumpConditions($jump_conditions, ilQuestionSetPoolNode $node)
-	{
-		foreach($jump_conditions as $jump_condition_data)
-		{
-			$jump_con = new ilQuestionSetPoolJumpCondition();
-			$jump_con->setNode($node);
-			$jump_con->setQuestion(
-				$this->qpl_qst_mapping[$jump_condition_data['JumpConditionQuestionId']] ?
-				assQuestion::_instantiateQuestion($this->qpl_qst_mapping[$jump_condition_data['JumpConditionQuestionId']]):
-				NULL
-			);
-			$jump_con->setJumpCondition($jump_condition_data['JumpConditionText']);
-			if(strlen($jump_condition_data['JumpConditionRepetitions']))
-			{
-				$jump_con->setRepititions($jump_condition_data['JumpConditionRepetitions']);
-			}
+            $nodes = $set_path['nodes'];
+            $this->importNodes($nodes, $path);
+        }
+    }
+    
+    /**
+     * @param array                 $nodes
+     * @param ilQuestionSetPoolPath $path
+     */
+    protected function importNodes($nodes, ilQuestionSetPoolPath $path)
+    {
+        foreach ($nodes as $node_data) {
+            $node = new ilQuestionSetPoolNode();
+            $node->setQuestion(assQuestion::_instantiateQuestion($this->qpl_qst_mapping[$node_data[0]['NodeQuestionId']]));
+            $node->setPath($path);
+            $node->setInitialCondition($node_data[0]['NodeInitialCondition']);
+            if (strlen($node_data[0]['NodeDominantScoring'])) {
+                $node->setDominantScoring($node_data[0]['NodeDominantScoring']);
+            }
+            $node->setTrueFeedback($node_data[0]['NodeTrueFeedback']);
+            $node->setFalseFeedback($node_data[0]['NodeFalseFeedback']);
+            
+            $node->import();
+            
+            $this->addNodeMapping($node_data[0]['NodeId'], $node->getId());
+            
+            $jump_conditions = $node_data['jump_conditions'];
+            if (is_array($jump_conditions) && count($jump_conditions) == 0) {
+                continue 1;
+            }
+            $this->importJumpConditions($jump_conditions, $node);
+        }
+    }
+    
+    /**
+     * @param array                 $jump_conditions
+     * @param ilQuestionSetPoolNode $node
+     */
+    protected function importJumpConditions($jump_conditions, ilQuestionSetPoolNode $node)
+    {
+        foreach ($jump_conditions as $jump_condition_data) {
+            $jump_con = new ilQuestionSetPoolJumpCondition();
+            $jump_con->setNode($node);
+            $jump_con->setQuestion(
+                $this->qpl_qst_mapping[$jump_condition_data['JumpConditionQuestionId']] ?
+                assQuestion::_instantiateQuestion($this->qpl_qst_mapping[$jump_condition_data['JumpConditionQuestionId']]):
+                null
+            );
+            $jump_con->setJumpCondition($jump_condition_data['JumpConditionText']);
+            if (strlen($jump_condition_data['JumpConditionRepetitions'])) {
+                $jump_con->setRepititions($jump_condition_data['JumpConditionRepetitions']);
+            }
 
-			$jump_con->setTrueFeedback($jump_condition_data['JumpConditionTrueFeedback']);
-			$jump_con->setTrueJumpFeedback($jump_condition_data['JumpConditionTrueJumpFeedback']);
-			$jump_con->setFalseFeedback($jump_condition_data['JumpConditionFalseFeedback']);
-			
-			$jump_con->import();
-		}
-	}
-	
-	/**
-	 * @param $old_set_id
-	 * @param $new_set_id
-	 */
-	protected function addSetMapping($old_set_id, $new_set_id)
-	{
-		$this->set_mapping[$old_set_id] = $new_set_id;
-	}
-	
-	/**
-	 * @param $old_path_id
-	 * @param $new_path_id
-	 */
-	protected function addPathMapping($old_path_id, $new_path_id)
-	{
-		$this->path_mapping[$old_path_id] = $new_path_id;
-	}
-	
-	/**
-	 * @param $old_node_id
-	 * @param $new_node_id
-	 */
-	protected function addNodeMapping($old_node_id, $new_node_id)
-	{
-		$this->node_mapping[$old_node_id] = $new_node_id;
-	}
-	
-	/**
-	 * Import XML
-	 * @param $a_entity
-	 * @param $a_id
-	 * @param $a_xml
-	 * @param $a_mapping
-	 * @return bool
-	 */
-	function importXmlRepresentation($a_entity, $a_id, $a_xml, $a_mapping)
-	{
-		/**
-		 * @var $tree ilTree
-		 */
-		global $tree;
+            $jump_con->setTrueFeedback($jump_condition_data['JumpConditionTrueFeedback']);
+            $jump_con->setTrueJumpFeedback($jump_condition_data['JumpConditionTrueJumpFeedback']);
+            $jump_con->setFalseFeedback($jump_condition_data['JumpConditionFalseFeedback']);
+            
+            $jump_con->import();
+        }
+    }
+    
+    /**
+     * @param $old_set_id
+     * @param $new_set_id
+     */
+    protected function addSetMapping($old_set_id, $new_set_id)
+    {
+        $this->set_mapping[$old_set_id] = $new_set_id;
+    }
+    
+    /**
+     * @param $old_path_id
+     * @param $new_path_id
+     */
+    protected function addPathMapping($old_path_id, $new_path_id)
+    {
+        $this->path_mapping[$old_path_id] = $new_path_id;
+    }
+    
+    /**
+     * @param $old_node_id
+     * @param $new_node_id
+     */
+    protected function addNodeMapping($old_node_id, $new_node_id)
+    {
+        $this->node_mapping[$old_node_id] = $new_node_id;
+    }
+    
+    /**
+     * Import XML
+     * @param $a_entity
+     * @param $a_id
+     * @param $a_xml
+     * @param $a_mapping
+     * @return bool
+     */
+    public function importXmlRepresentation($a_entity, $a_id, $a_xml, $a_mapping)
+    {
+        /**
+         * @var $tree ilTree
+         */
+        global $tree;
 
-		$this->plugin_object->includeClass('class.ilObjQuestionSetPool.php');
-		$this->plugin_object->includeClass('class.ilObjQuestionSetPoolXMLParser.php');
-		
-		$parent_ref_id = 0;
-		
-		if($new_id = $a_mapping->getMapping('Services/Container', 'objs', $a_id))
-		{
-			$ref_ids = ilObject::_getAllReferences($new_id);
-			$ref_id  = current($ref_ids);
-			
-			$parent_ref_id = $tree->getParentId($ref_id);
-			
-			$this->xqsp_obj = ilObjectFactory::getInstanceByObjId($new_id, false);
-			$this->xqsp_obj->setRefId($ref_id);
-			$this->is_single_import = false;
-		}
-		else
-		{
-			$this->xqsp_obj = new ilObjQuestionSetPool();
-			$this->xqsp_obj->create(true);
-			$this->is_single_import = true;
-		}
-		
-		$this->current_parent_ref_id = $parent_ref_id;
-		
-		// import questions to QPL questionpool		
-		$this->parseQtiFile();
+        $this->plugin_object->includeClass('class.ilObjQuestionSetPool.php');
+        $this->plugin_object->includeClass('class.ilObjQuestionSetPoolXMLParser.php');
+        
+        $parent_ref_id = 0;
+        
+        if ($new_id = $a_mapping->getMapping('Services/Container', 'objs', $a_id)) {
+            $ref_ids = ilObject::_getAllReferences($new_id);
+            $ref_id = current($ref_ids);
+            
+            $parent_ref_id = $tree->getParentId($ref_id);
+            
+            $this->xqsp_obj = ilObjectFactory::getInstanceByObjId($new_id, false);
+            $this->xqsp_obj->setRefId($ref_id);
+            $this->is_single_import = false;
+        } else {
+            $this->xqsp_obj = new ilObjQuestionSetPool();
+            $this->xqsp_obj->create(true);
+            $this->is_single_import = true;
+        }
+        
+        $this->current_parent_ref_id = $parent_ref_id;
+        
+        // import questions to QPL questionpool
+        $this->parseQtiFile();
 
-		$parser = new ilObjQuestionSetPoolXMLParser($this->xqsp_obj, $this->getXmlFile());
-		$parser->setImportDirectory($this->getImportDirectory());
-		$parser->startParsing();
-		$this->xqsp_obj = $parser->getQuestionSetPoolObject();
-		$this->xqsp_obj->update();
-		
-		// create sets
-		$sets = $parser->getSetsArray();
-		
-		foreach($sets as $set_data)
-		{
-			$this->importQuestionSet($set_data[0], $set_data['questions'],  $set_data['paths'], $a_mapping);
-		}
-		
-		$a_mapping->addMapping('Plugins/xqsp', 'xqsp', $a_id, $this->xqsp_obj->getId());
-	}
-	
-	function finalProcessing($a_mapping)
-	{
-		
-			// Container import
-			// Prüfen, ob in einer statischen Variable (z.B. self::$pool_by_parent[$this->current_parent_ref_id] schon eine Pool ID existiert
-			// Wenn ja, diesen Pool nehmen (sofern Bedarf für neue Originale)
-			// Wenn nein, neuen Pool auf dieser Ebene -> mit putInTree($this->current_parent_ref_id) einhängen,
-			// und dann dessen  ID hier merken: self::$pool_by_parent[$this->current_parent_ref_id]
-		
-		// Einzel-Import mit (ggf. erfolgter Wahl eines bestehenden Fragenpools als Ziel für Originale unserer Fragen)
-		$new_qpl_id = (int)$_POST['qpl'];
-		if($_POST['qpl'] == self::SINGLE_IMPORT_NO_POOL)
-		{
-			//Die neuen Fragen 'ohne pool' liegen schon im XQSP.
-		}
-		else
-		{
-			if ($new_qpl_id > 0)
-			{
-				$this->initializeQplObject($new_qpl_id);
-			}
-			// Containter-Import (Plugin liegt im Kurs, die Originale unserer Fragen liegen ggf.(!!) in ebenfalls importierten Fragenpools)
-			else if ($this->is_single_import || (is_array($this->qpl_qst_mapping['new_qpl']) && count($this->qpl_qst_mapping['new_qpl']) > 0))
-			{
-				$parent_ref_id = $a_mapping->getTargetId();
-				if (!$this->is_single_import && $this->current_parent_ref_id > 0)
-				{
-					$parent_ref_id = $this->current_parent_ref_id;
-				}
+        $parser = new ilObjQuestionSetPoolXMLParser($this->xqsp_obj, $this->getXmlFile());
+        $parser->setImportDirectory($this->getImportDirectory());
+        $parser->startParsing();
+        $this->xqsp_obj = $parser->getQuestionSetPoolObject();
+        $this->xqsp_obj->update();
+        
+        // create sets
+        $sets = $parser->getSetsArray();
+        
+        foreach ($sets as $set_data) {
+            $this->importQuestionSet($set_data[0], $set_data['questions'], $set_data['paths'], $a_mapping);
+        }
+        
+        $a_mapping->addMapping('Plugins/xqsp', 'xqsp', $a_id, $this->xqsp_obj->getId());
+    }
+    
+    public function finalProcessing($a_mapping)
+    {
+        
+            // Container import
+        // Prüfen, ob in einer statischen Variable (z.B. self::$pool_by_parent[$this->current_parent_ref_id] schon eine Pool ID existiert
+        // Wenn ja, diesen Pool nehmen (sofern Bedarf für neue Originale)
+        // Wenn nein, neuen Pool auf dieser Ebene -> mit putInTree($this->current_parent_ref_id) einhängen,
+        // und dann dessen  ID hier merken: self::$pool_by_parent[$this->current_parent_ref_id]
+        
+        // Einzel-Import mit (ggf. erfolgter Wahl eines bestehenden Fragenpools als Ziel für Originale unserer Fragen)
+        $new_qpl_id = (int) $_POST['qpl'];
+        if ($_POST['qpl'] == self::SINGLE_IMPORT_NO_POOL) {
+            //Die neuen Fragen 'ohne pool' liegen schon im XQSP.
+        } else {
+            if ($new_qpl_id > 0) {
+                $this->initializeQplObject($new_qpl_id);
+            }
+            // Containter-Import (Plugin liegt im Kurs, die Originale unserer Fragen liegen ggf.(!!) in ebenfalls importierten Fragenpools)
+            elseif ($this->is_single_import || (is_array($this->qpl_qst_mapping['new_qpl']) && count($this->qpl_qst_mapping['new_qpl']) > 0)) {
+                $parent_ref_id = $a_mapping->getTargetId();
+                if (!$this->is_single_import && $this->current_parent_ref_id > 0) {
+                    $parent_ref_id = $this->current_parent_ref_id;
+                }
 
-				if (isset(self::$pool_by_parent_id[$parent_ref_id]))
-				{
-					$pool_obj_id = self::$pool_by_parent_id[$parent_ref_id];
-					$this->initializeQplObject($pool_obj_id);
-				}
-				else
-				{
-					// es handelt sich um einen dummy pool
-					$this->initializeQplObject(0);
-					// put the questionpool object in the administration tree
-					$this->qpl_obj->putInTree($parent_ref_id);
-					// get default permissions and set the permissions for the questionpool object
-					$this->qpl_obj->setPermissions($parent_ref_id);
+                if (isset(self::$pool_by_parent_id[$parent_ref_id])) {
+                    $pool_obj_id = self::$pool_by_parent_id[$parent_ref_id];
+                    $this->initializeQplObject($pool_obj_id);
+                } else {
+                    // es handelt sich um einen dummy pool
+                    $this->initializeQplObject(0);
+                    // put the questionpool object in the administration tree
+                    $this->qpl_obj->putInTree($parent_ref_id);
+                    // get default permissions and set the permissions for the questionpool object
+                    $this->qpl_obj->setPermissions($parent_ref_id);
 
-					self::$pool_by_parent_id[$parent_ref_id] = $this->qpl_obj->getId();
-				}
-			}
+                    self::$pool_by_parent_id[$parent_ref_id] = $this->qpl_obj->getId();
+                }
+            }
 
-			foreach ($this->qpl_qst_mapping['new_qpl'] as $new_id)
-			{
-				//Die neuen Fragen 'ohne pool' liegen schon im XQSP.
-				// jetzt müssen sie in den neu angelegten dummy pool (QPL) kopiert werden und die org_id im xqsp-pool angepasst werden.
-				$source_qst   = assQuestion::_instantiateQuestion($new_id);
-				$is_xqsp_pool = (ilObject::_lookupType($source_qst->getObjId()) == 'xqsp' ? true : false);
-				// This is the intended behaviour, see http://www.ilias.de/mantis/view.php?id=18325
-				if(($source_qst->getOriginalId() == NULL || $this->is_single_import) && $is_xqsp_pool)
-				{
-					// Dies ist nur für Fragen "ohne pool" relevant!!!!
-					$clone_id   = $source_qst->copyObject($this->qpl_obj->getId());
-					$source_qst = assQuestion::_instantiateQuestion($new_id);
-					$source_qst->setNewOriginalId($clone_id);
-					$source_qst->saveToDb();
-				}
-			}
-		}
-		return parent::finalProcessing($a_mapping);
-	}
-	
-	/**
-	 * Create qti and xml file name
-	 * @return array 
-	 */
-	protected function parseXmlFileNames()
-	{
-		$GLOBALS['ilLog']->write(__METHOD__.': '.$this->getImportDirectory());
-		
-		$basename = basename($this->getImportDirectory());
+            foreach ($this->qpl_qst_mapping['new_qpl'] as $new_id) {
+                //Die neuen Fragen 'ohne pool' liegen schon im XQSP.
+                // jetzt müssen sie in den neu angelegten dummy pool (QPL) kopiert werden und die org_id im xqsp-pool angepasst werden.
+                $source_qst = assQuestion::_instantiateQuestion($new_id);
+                $is_xqsp_pool = (ilObject::_lookupType($source_qst->getObjId()) == 'xqsp' ? true : false);
+                // This is the intended behaviour, see http://www.ilias.de/mantis/view.php?id=18325
+                if (($source_qst->getOriginalId() == null || $this->is_single_import) && $is_xqsp_pool) {
+                    // Dies ist nur für Fragen "ohne pool" relevant!!!!
+                    $clone_id = $source_qst->copyObject($this->qpl_obj->getId());
+                    $source_qst = assQuestion::_instantiateQuestion($new_id);
+                    $source_qst->setNewOriginalId($clone_id);
+                    $source_qst->saveToDb();
+                }
+            }
+        }
+        return parent::finalProcessing($a_mapping);
+    }
+    
+    /**
+     * Create qti and xml file name
+     * @return array
+     */
+    protected function parseXmlFileNames()
+    {
+        $GLOBALS['ilLog']->write(__METHOD__ . ': ' . $this->getImportDirectory());
+        
+        $basename = basename($this->getImportDirectory());
 
-		$xml = $this->getImportDirectory().'/'.$basename.'.xml';
-		$qti = $this->getImportDirectory().'/'.preg_replace('/xqsp/', 'qti', $basename).'.xml';
-		
-		return array($xml,$qti);
-	}
+        $xml = $this->getImportDirectory() . '/' . $basename . '.xml';
+        $qti = $this->getImportDirectory() . '/' . preg_replace('/xqsp/', 'qti', $basename) . '.xml';
+        
+        return array($xml,$qti);
+    }
 
-	private function getImportDirectoryBase()
-	{
-		$dir = $this->getImportDirectory();
-		$dir = dirname($dir);
-		return $dir;
-	}
-	
-	/**
-	 * @param array $mapping
-	 */
-	public function setExternalQplQuestionMapping(array $mapping)
-	{
-		$this->qpl_qst_mapping = $mapping;
-	}
-	
-	public function getExternalQplQuestionMapping()
-	{
-		return $this->qpl_qst_mapping;
-	}
+    private function getImportDirectoryBase()
+    {
+        $dir = $this->getImportDirectory();
+        $dir = dirname($dir);
+        return $dir;
+    }
+    
+    /**
+     * @param array $mapping
+     */
+    public function setExternalQplQuestionMapping(array $mapping)
+    {
+        $this->qpl_qst_mapping = $mapping;
+    }
+    
+    public function getExternalQplQuestionMapping()
+    {
+        return $this->qpl_qst_mapping;
+    }
 }