Upload app.py

app.py

@@ -12,8 +12,8 @@ from fastapi.responses import JSONResponse
 import os
 
 # Connect to the database
-connection = pymysql.connect(host='134.0.14.99',
-                            user='marcadm',
+connection = pymysql.connect(host=os.environ['MURMEL_DB_HOST'],
+                            user=os.environ['MURMEL_DB_USER'],
                             password=os.environ['MURMEL_DB_PASSWORD'],
                             database='murmel',
                             cursorclass=pymysql.cursors.DictCursor)
@@ -23,6 +23,7 @@ app = FastAPI()
 
 @app.get("/groups")
 def get_groups():
+    connection.ping(reconnect=True)      
     with connection.cursor() as cursor:
         # Read a single record
         sql = "SELECT Gruppe, idGruppe FROM `gruppe` WHERE aktuell is True ORDER BY idGruppe ASC;"
@@ -33,6 +34,7 @@ def get_groups():
 
 @app.get("/students/{idGruppe}")
 def get_students(idGruppe):
+    connection.ping(reconnect=True)      
     with connection.cursor() as cursor:
         #sql = "SELECT Gruppe, idGruppe FROM `gruppe` WHERE idGruppe=%s ORDER BY name ASC;"
         sql = "select concat(`ki`.`Vorname`,' ',`ki`.`Nachnamen`) AS `Kind`, `ki`.`idKind` AS `idKind` from (((`kind` `ki` join `gruppe` `gr`) join `kind_x_gruppe_x_schuljahr` `kgs`) join `schuljahr` `sch`) where `ki`.`idKind` = `kgs`.`x_kind` and `sch`.`idschuljahr` = `kgs`.`x_schuljahr` and `gr`.`idGruppe` =  `kgs`.`x_gruppe` and `sch`.`aktuell` = 1 and (`gr`.`Gruppe` = %s or `gr`.`idGruppe` =  %s) order by 1"
@@ -54,6 +56,7 @@ def rueckgabe(idBuch, grund='rueckgabe'):
     - int: 0 if the book was not found or already returned.
 
     """
+    connection.ping(reconnect=True)
     with connection.cursor() as cursor:
         # check if the book is already returned
         sql = "SELECT `idBuch`, `idKind`, `ausleihe`, `rueckgabe`, `rueckGrund` FROM `ausleihe` WHERE `idBuch` = %s AND `rueckgabe` is NULL;"
@@ -83,6 +86,7 @@ def ausleihe(idBuch, idKind):
     """
     rueckgabe_result = rueckgabe(idBuch, grund="neu-ausleihe") # Buch kann nicht durch andere ausgeliehen sein        
     sql = "INSERT INTO `ausleihe` (`idBuch`, `idKind`, `ausleihe`) VALUES (%s, %s, NOW());"
+    connection.ping(reconnect=True)
     with connection.cursor() as cursor:
         cursor.execute(sql, (idBuch, idKind))
         connection.commit()
@@ -101,6 +105,7 @@ def ausgeliehen(idKind):
     Returns:
         list: A list of tuples containing the book ID and the borrowing date for each book that is currently borrowed by the child.
     """
+    connection.ping(reconnect=True)
     with connection.cursor() as cursor:
         sql = "SELECT `idBuch`, `ausleihe` FROM `ausleihe` WHERE `idKind` = %s AND `rueckgabe` IS NULL;"
         cursor.execute(sql, (idKind,))