- added issue resolution job and libraries for defining how to resolve issues

- added issue inserts (fehlerupdate.php), included them in checksystem
- added getAufenthaltsdauer method to Bisio_model.php
- Add column parameterFuerBehebung to system.tbl_issue

application/libraries/issues/CORE_INOUT_0001.php

@@ -0,0 +1,31 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Bisio Zweck does not exist
+ */
+class CORE_INOUT_0001 implements IIssueResolvedChecker
+{
+	public function checkIfIssueIsResolved($params)
+	{
+		if (!isset($params['bisio_id']) || !is_numeric($params['bisio_id']))
+			return error('Bisio Id missing');
+
+		$this->_ci =& get_instance(); // get code igniter instance
+
+		$this->_ci->load->model('codex/Bisiozweck_model', 'BisiozweckModel');
+
+		// get all bisio Zwecke
+		$this->_ci->BisiozweckModel->addSelect('1');
+		$bisiozweckRes = $this->_ci->BisiozweckModel->loadWhere(array('bisio_id' => $params['bisio_id']));
+
+		if (isError($bisiozweckRes))
+			return $bisiozweckRes;
+
+		if (hasData($bisiozweckRes))
+			return success(true); // resolved if bisio Zweck exists
+		else
+			return success(false); // not resolved if no bisio zweck
+	}
+}