From 3c98988c1c6c87d738d01310429d61aef3647109 Mon Sep 17 00:00:00 2001
From: hainberg <hainberg@technikum-wien.at>
Date: Thu, 12 Sep 2019 13:51:54 +0200
Subject: [PATCH] Added new method hasVertrag()

This method checks if a Projektbetreuer has a corresponding contract.
If vertrag_id is null => is still a new Projektauftrag
If vertrag_id is present => Projektauftrag has been ordered and a
contract has been created.
---
 .../education/Projektbetreuer_model.php       | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/application/models/education/Projektbetreuer_model.php b/application/models/education/Projektbetreuer_model.php
index 32743be82..746e4c052 100644
--- a/application/models/education/Projektbetreuer_model.php
+++ b/application/models/education/Projektbetreuer_model.php
@@ -11,4 +11,34 @@ class Projektbetreuer_model extends DB_Model
 		$this->dbTable = 'lehre.tbl_projektbetreuer';
 		$this->pk = array('betreuerart_kurzbz', 'projektarbeit_id', 'person_id');
 	}
+
+    /**
+     * Checks if Projektauftrag has a contract.
+     * @param $person_id
+     * @param $projektarbeit_id
+     * @return array|bool|int       Returns vertrag_id if contract exists. False if doesnt exist. On error array.
+     */
+    public function hasVertrag($person_id, $projektarbeit_id)
+    {
+        if (is_numeric($person_id) && is_numeric($projektarbeit_id))
+        {
+            $result = $this->load(array(
+                'person_id' => $person_id,
+                'projektarbeit_id' => $projektarbeit_id
+            ));
+
+            if (hasData($result))
+            {
+                return (is_null($result->retval[0]->vertrag_id)) ? false : intval($result->retval[0]->vertrag_id);
+            }
+            else
+            {
+                return error($result->msg, EXIT_ERROR);
+            }
+        }
+        else
+        {
+            return error ('Incorrect parameter type');
+        }
+    }
 }