- Added new protected method getOldestJob to JQW_Controller

- Added new public method getOldestJob to JobsQueueLib

application/core/JQW_Controller.php

@@ -47,6 +47,19 @@ abstract class JQW_Controller extends JOB_Controller
 		return $jobs;
 	}
 
+	/**
+	 * To get the oldest added job using the given job type
+	 */
+	protected function getOldestJob($type)
+	{
+		$jobs = $this->jobsqueuelib->getOldestJob($type);
+
+		// If an error occurred then log it in database
+		if (isError($jobs)) $this->logError(getError($jobs), $type);
+
+		return $jobs;
+	}
+
 	/**
 	 * To get all the jobs specified by the given parameters
 	 */

application/libraries/JobsQueueLib.php

@@ -56,6 +56,19 @@ class JobsQueueLib
 		return $this->_ci->JobsQueueModel->loadWhere(array('status' => self::STATUS_NEW, 'type' => $type));
 	}
 
+	/**
+	 * To get the oldest added jobs using the given job type
+	 */
+	public function getOldestJob($type)
+	{
+		$this->_ci->JobsQueueModel->resetQuery();
+
+		$this->_ci->JobsQueueModel->addOrder('creationtime', 'ASC');
+		$this->_ci->JobsQueueModel->addLimit('1');
+
+		return $this->_ci->JobsQueueModel->loadWhere(array('status' => self::STATUS_NEW, 'type' => $type));
+	}
+
 	/**
 	 * To get all the jobs specified by the given parameters
 	 */