diff --git a/application/core/CLI_Controller.php b/application/core/CLI_Controller.php
index 79e2a1283..7e1e2a1ab 100644
--- a/application/core/CLI_Controller.php
+++ b/application/core/CLI_Controller.php
@@ -3,7 +3,8 @@
 if (!defined('BASEPATH')) exit('No direct script access allowed');
 
 /**
- *
+ * This is the super class for all those controllers that can only be called from command line
+ * It provides also an helper to display the possible calls
  */
 abstract class CLI_Controller extends FHC_Controller
 {
@@ -15,9 +16,9 @@ abstract class CLI_Controller extends FHC_Controller
 	/**
 	 * Constructor
 	 */
-    public function __construct()
+	public function __construct()
 	{
-        parent::__construct();
+		parent::__construct();
 
 		// Checks if the controller is called from command line
 		$this->_isAllowed();
@@ -103,3 +104,4 @@ abstract class CLI_Controller extends FHC_Controller
 		}
 	}
 }
+
diff --git a/application/core/JOB_Controller.php b/application/core/JOB_Controller.php
index ea779b169..2d3d3873e 100644
--- a/application/core/JOB_Controller.php
+++ b/application/core/JOB_Controller.php
@@ -3,26 +3,34 @@
 if (!defined('BASEPATH')) exit('No direct script access allowed');
 
 /**
- *
+ * This is the super class for a job.
+ * All the controllers that extends this class can only be called from command line.
+ * Provides utility methods to log into database
  */
 abstract class JOB_Controller extends CLI_Controller
 {
 	/**
 	 * Constructor
 	 */
-    public function __construct()
+	public function __construct()
 	{
-        parent::__construct();
+		parent::__construct();
 
 		// Loads LogLib with different debug trace levels to get data of the job that extends this class
 		// It also specify parameters to set database fields
-		$this->load->library('LogLib', array(
-			'classIndex' => 5,
-			'functionIndex' => 5,
-			'lineIndex' => 4,
-			'dbLogType' => 'job', // required
-			'dbExecuteUser' => 'Cronjob system'
-		));
+		$this->load->library('LogLib',
+			array(
+				'classIndex' => 5,
+				'functionIndex' => 5,
+				'lineIndex' => 4,
+				'dbLogType' => 'job', // required
+				'dbExecuteUser' => 'Cronjob system',
+				'requestId' => 'JOB',
+				'requestDataFormatter' => function($data) {
+					return json_encode($data);
+				}
+			)
+		);
 	}
 
 	//------------------------------------------------------------------------------------------------------------------
@@ -33,7 +41,7 @@ abstract class JOB_Controller extends CLI_Controller
 	 */
 	protected function logInfo($response, $parameters = null)
 	{
-		$this->_log(LogLib::INFO, 'Cronjob info', $response, $parameters);
+		$this->_log(LogLib::INFO, $response, $parameters);
 	}
 
 	/**
@@ -41,7 +49,7 @@ abstract class JOB_Controller extends CLI_Controller
 	 */
 	protected function logDebug($response, $parameters = null)
 	{
-		$this->_log(LogLib::DEBUG, 'Cronjob debug', $response, $parameters);
+		$this->_log(LogLib::DEBUG, $response, $parameters);
 	}
 
 	/**
@@ -49,7 +57,7 @@ abstract class JOB_Controller extends CLI_Controller
 	 */
 	protected function logWarning($response, $parameters = null)
 	{
-		$this->_log(LogLib::WARNING, 'Cronjob warning', $response, $parameters);
+		$this->_log(LogLib::WARNING, $response, $parameters);
 	}
 
 	/**
@@ -57,7 +65,7 @@ abstract class JOB_Controller extends CLI_Controller
 	 */
 	protected function logError($response, $parameters = null)
 	{
-		$this->_log(LogLib::ERROR, 'Cronjob error', $response, $parameters);
+		$this->_log(LogLib::ERROR, $response, $parameters);
 	}
 
 	//------------------------------------------------------------------------------------------------------------------
@@ -66,7 +74,7 @@ abstract class JOB_Controller extends CLI_Controller
 	/**
 	 * Writes a log to database
 	 */
-	private function _log($level, $requestId, $response, $parameters)
+	private function _log($level, $response, $parameters)
 	{
 		$data = new stdClass();
 
@@ -76,17 +84,18 @@ abstract class JOB_Controller extends CLI_Controller
 		switch($level)
 		{
 			case LogLib::INFO:
-				$this->loglib->logInfoDB($requestId, json_encode(success($data, LogLib::INFO)));
+				$this->loglib->logInfoDB($data);
 				break;
 			case LogLib::DEBUG:
-				$this->loglib->logDebugDB($requestId, json_encode(success($data, LogLib::DEBUG)));
+				$this->loglib->logDebugDB($data);
 				break;
 			case LogLib::WARNING:
-				$this->loglib->logWarningDB($requestId, json_encode(error($data, LogLib::WARNING)));
+				$this->loglib->logWarningDB($data);
 				break;
 			case LogLib::ERROR:
-				$this->loglib->logErrorDB($requestId, json_encode(error($data, LogLib::ERROR)));
+				$this->loglib->logErrorDB($data);
 				break;
 		}
 	}
 }
+
diff --git a/application/core/JQW_Controller.php b/application/core/JQW_Controller.php
index ab63e7ffd..cec2f7943 100644
--- a/application/core/JQW_Controller.php
+++ b/application/core/JQW_Controller.php
@@ -5,9 +5,10 @@ if (!defined("BASEPATH")) exit("No direct script access allowed");
 /**
  * Job Queue Worker
  *
- * This controller acts as interface of the JobsQueueLib that contains all the needed functionalities to operate with
- * the Jobs Queue System
- * This is an abstract class that provide basic functionalities, it has to be extended to broaden its logic
+ * This controller acts as interface of the JobsQueueLib that contains
+ * all the needed functionalities to operate with the Jobs Queue System
+ * This is an abstract class that provide basic functionalities,
+ * it has to be extended to broaden its logic
  */
 abstract class JQW_Controller extends JOB_Controller
 {
@@ -18,14 +19,13 @@ abstract class JQW_Controller extends JOB_Controller
 	{
 		parent::__construct();
 
-		// Loads LogLib with different parameters
-		$this->load->library('LogLib', array(
-			'classIndex' => 5,
-			'functionIndex' => 5,
-			'lineIndex' => 4,
-			'dbLogType' => 'job', // required
-			'dbExecuteUser' => 'Jobs queue system'
-		));
+		// Changes the needed configs for LogLib
+		$this->loglib->setConfigs(
+			array(
+				'dbExecuteUser' => 'Jobs queue system',
+				'requestId' => 'JQW'
+			)
+		);
 
 		// Loads JobsQueueLib library
 		$this->load->library('JobsQueueLib');
diff --git a/application/libraries/LogLib.php b/application/libraries/LogLib.php
index b98575150..ffdec5f03 100644
--- a/application/libraries/LogLib.php
+++ b/application/libraries/LogLib.php
@@ -42,6 +42,8 @@ class LogLib
 	const P_NAME_LINE_INDEX = 'lineIndex';
 	const P_NAME_DB_LOG_TYPE = 'dbLogType';
 	const P_NAME_DB_EXECUTE_USER = 'dbExecuteUser';
+	const P_NAME_REQUEST_ID = 'requestId';
+	const P_NAME_REQUEST_DATA_FORMATTER = 'requestDataFormatter';
 
 	// Properties used to retrieve caller data
 	private $_classIndex;
@@ -52,6 +54,9 @@ class LogLib
 	private $_dbLogType;
 	private $_dbExecuteUser;
 
+	private $_requestId; // is it possible to specify a request id when loading this library
+	private $_requestDataFormatter; // is possible to provide a function to format request data
+
 	/**
 	 * Set properties to a default value or overwrites them with the given parameters
 	 */
@@ -63,7 +68,18 @@ class LogLib
 		$this->_lineIndex = self::LINE_INDEX;
 		$this->_dbLogType = null;
 		$this->_dbExecuteUser = self::DB_EXECUTE_USER;
+		$this->_requestId = null;
+		$this->_requestDataFormatter = null;
 
+		// If parameters are given then overwrite the default values
+		if (!isEmptyArray($params)) $this->setConfigs($params);
+	}
+
+	/**
+	 * Store configuration parameters for this lib
+	 */
+	public function setConfigs($params)
+	{
 		// If parameters are given then overwrite the default values
 		if (!isEmptyArray($params))
 		{
@@ -72,6 +88,8 @@ class LogLib
 			if (isset($params[self::P_NAME_LINE_INDEX])) $this->_lineIndex = $params[self::P_NAME_LINE_INDEX];
 			if (isset($params[self::P_NAME_DB_LOG_TYPE])) $this->_dbLogType = $params[self::P_NAME_DB_LOG_TYPE];
 			if (isset($params[self::P_NAME_DB_EXECUTE_USER])) $this->_dbExecuteUser = $params[self::P_NAME_DB_EXECUTE_USER];
+			if (isset($params[self::P_NAME_REQUEST_ID])) $this->_requestId = $params[self::P_NAME_REQUEST_ID];
+			if (isset($params[self::P_NAME_REQUEST_DATA_FORMATTER])) $this->_requestDataFormatter = $params[self::P_NAME_REQUEST_DATA_FORMATTER];
 		}
 	}
 
@@ -108,33 +126,33 @@ class LogLib
 	/**
 	 * Writes an info log to database
 	 */
-	public function logInfoDB($requestId, $data)
+	public function logInfoDB($data, $requestId = null)
 	{
-		$this->_logDB(self::INFO, $requestId, $data);
+		$this->_logDB(self::INFO, $data, $requestId);
 	}
 
 	/**
 	 * Writes a debug log to database
 	 */
-	public function logDebugDB($requestId, $data)
+	public function logDebugDB($data, $requestId = null)
 	{
-		$this->_logDB(self::DEBUG, $requestId, $data);
+		$this->_logDB(self::DEBUG, $data, $requestId);
 	}
 
 	/**
 	 * Writes an warning log to database
 	 */
-	public function logWarningDB($requestId, $data)
+	public function logWarningDB($data, $requestId = null)
 	{
-		$this->_logDB(self::WARNING, $requestId, $data);
+		$this->_logDB(self::WARNING, $data, $requestId);
 	}
 
 	/**
 	 * Writes an error log to database
 	 */
-	public function logErrorDB($requestId, $data)
+	public function logErrorDB($data, $requestId = null)
 	{
-		$this->_logDB(self::ERROR, $requestId, $data);
+		$this->_logDB(self::ERROR, $data, $requestId);
 	}
 
 	// --------------------------------------------------------------------------------------------------------------
@@ -151,8 +169,15 @@ class LogLib
 	/**
 	 * Writes logs to database
 	 */
-	private function _logDB($level, $requestId, $data)
+	private function _logDB($level, $data, $requestId, $executionTime = null)
 	{
+		// If there isn't a valid request id provided during the loading of this library or when any log to db method is called
+		// NOTE: this message will be displayed only to the developer AND stops the execution
+		if (isEmptyString($this->_requestId) && isEmptyString($requestId))
+		{
+			show_error('To log to database you need to specify or give the "'.self::P_NAME_REQUEST_ID.'" parameter when the LogLib is loaded or when log'.ucfirst($level).'DB is called');
+		}
+
 		// If the _dbLogType parameter was not given when this library was loaded
 		// NOTE: this message will be displayed only to the developer AND stops the execution
 		if ($this->_dbLogType == null)
@@ -175,14 +200,21 @@ class LogLib
 			// Get caller data
 			$callerData = $this->_getCaller();
 
+			// If a request data formatter was defined then use it
+			$request_data = $data;
+			if ($this->_requestDataFormatter != null && is_callable($this->_requestDataFormatter))
+			{
+				$request_data = call_user_func_array($this->_requestDataFormatter, array($data));
+			}
+
 			// Writes a log to database
 			$ci->WebservicelogModel->insert(array(
 				'webservicetyp_kurzbz' => $this->_dbLogType,
-				'request_id' => $requestId,
+				'request_id' => (!isEmptyString($requestId) ? $requestId : $this->_requestId).' - '.$level,
 				'beschreibung' => $this->_getDatabaseDescription($callerData),
-				'request_data' => $data,
+				'request_data' => $request_data,
 				'execute_user' => $this->_dbExecuteUser,
-				'execute_time' => 'NOW()' // current time
+				'execute_time' => $executionTime == null ? 'NOW()' : $executionTime // default current time, if not otherwise specified
 			));
 		}
 	}
@@ -251,3 +283,4 @@ class LogLib
 		return $formatted;
 	}
 }
+