From 367c266e2e74baa3d37515139081f01a518e88a5 Mon Sep 17 00:00:00 2001
From: KarpAlex <karpen_ko@hotmail.com>
Date: Thu, 29 Jul 2021 13:02:24 +0200
Subject: [PATCH] Zeugnisnote_model.php: added method getEctsSumsByPerson

---
 .../models/education/Zeugnisnote_model.php    | 67 ++++++++++++++++++-
 1 file changed, 66 insertions(+), 1 deletion(-)

diff --git a/application/models/education/Zeugnisnote_model.php b/application/models/education/Zeugnisnote_model.php
index 306f56e8c..2ccea3e53 100644
--- a/application/models/education/Zeugnisnote_model.php
+++ b/application/models/education/Zeugnisnote_model.php
@@ -14,7 +14,72 @@ class Zeugnisnote_model extends DB_Model
 	}
 
 	/**
-	 * Gets Pruefungen of a person for a Studiensemester.
+	 * Gets ECTS sums of completed courses (Zeugnisnoten) of a person for a Studiensemester.
+	 * If no valid Noten for the course were entered, 0 ects is returned.
+	 * @param int $person_id
+	 * @param string $studiensemester_kurzbz
+	 * @param bool $aktiv
+	 * @param bool $lehre
+	 * @param bool $offiziell
+	 * @param bool $positiv
+	 * @return object
+	 */
+	public function getEctsSumsByPerson($person_id, $studiensemester_kurzbz, $aktiv = true, $lehre = null, $offiziell = null, $positiv = null)
+	{
+		$params = array();
+
+		$qry = "SELECT DISTINCT ON (prst.prestudent_id) pers.matr_nr, stg.studiengang_kz, prst.prestudent_id, stg.erhalter_kz,
+       			UPPER(stg.typ||stg.kurzbz) AS studiengang, stg.bezeichnung AS studiengang_bezeichnung, COALESCE(summen.summe_ects, 0) AS summe_ects
+				FROM public.tbl_person pers
+				JOIN public.tbl_prestudent prst USING (person_id)
+				JOIN public.tbl_prestudentstatus prstst USING (prestudent_id)
+				JOIN public.tbl_studiengang stg ON prst.studiengang_kz = stg.studiengang_kz
+				LEFT JOIN (
+					SELECT zgnisnote.student_uid, prestudent_id, zgnisnote.studiensemester_kurzbz, sum(ects) AS summe_ects
+				    FROM public.tbl_student
+					LEFT JOIN lehre.tbl_zeugnisnote zgnisnote USING(student_uid)
+					LEFT JOIN lehre.tbl_note note ON zgnisnote.note = note.note
+					LEFT JOIN lehre.tbl_lehrveranstaltung lv USING (lehrveranstaltung_id)
+					WHERE TRUE";
+
+		if (isset($aktiv))
+		{
+			$qry .= ' AND (note.aktiv = ?)';
+			$params[] = $aktiv;
+		}
+
+		if (isset($lehre))
+		{
+			$qry .= ' AND (note.lehre = ?)';
+			$params[] = $lehre;
+		}
+
+		if (isset($offiziell))
+		{
+			$qry .= ' AND (note.offiziell = ?)';
+			$params[] = $offiziell;
+		}
+
+		if (isset($positiv))
+		{
+			$qry .= ' AND (note.positiv = ?)';
+			$params[] = $positiv;
+		}
+
+		$qry .= " GROUP BY zgnisnote.studiensemester_kurzbz, zgnisnote.student_uid, prestudent_id
+				) summen ON prst.prestudent_id = summen.prestudent_id AND prstst.studiensemester_kurzbz = summen.studiensemester_kurzbz
+				WHERE pers.person_id = ?
+				AND prstst.studiensemester_kurzbz = ?
+				ORDER BY prst.prestudent_id";
+
+		$params[] = $person_id;
+		$params[] = $studiensemester_kurzbz;
+
+		return $this->execQuery($qry, $params);
+	}
+
+	/**
+	 * Gets courses (Zeugnisnoten) of a person for a Studiensemester.
 	 * @param int $person_id
 	 * @param string $studiensemester_kurzbz
 	 * @param bool $aktiv