Bismeldestichtag Model: added getByStudiensemester method

application/models/codex/Bismeldestichtag_model.php

@@ -11,4 +11,25 @@ class Bismeldestichtag_model extends DB_Model
 		$this->dbTable = 'bis.tbl_bismeldestichtag';
 		$this->pk = 'meldestichtag_id';
 	}
+
+	/**
+	 * Gets last Bismeldestichtag for a Studiensemester.
+	 * @param $studiensemester_kurzbz
+	 * @return object success or error
+	 */
+	public function getByStudiensemester($studiensemester_kurzbz)
+	{
+		$query = '
+				SELECT
+					meldestichtag
+				FROM
+					bis.tbl_bismeldestichtag
+					JOIN public.tbl_studiensemester USING (studiensemester_kurzbz)
+				WHERE
+					studiensemester_kurzbz = ?
+				ORDER BY meldestichtag DESC
+				LIMIT 1';
+
+		return $this->execQuery($query, array($studiensemester_kurzbz));
+	}
 }