Datenmodell neu, Verbindungsdaten Flask aus einer Datei laden

README.md

@@ -19,7 +19,5 @@ Ein erster Gedanke des Datenbank-Layouts sieht folgendermaßen aus:
 
 ### Postman
 
-
 Zum Debuggen der Flask App verwende ich dieses Tutorial:
 https://code.visualstudio.com/docs/python/tutorial-flask#_create-a-project-environment-for-the-flask-tutorial
-

src/server/BreCal/connection_data.json

@@ -0,0 +1,9 @@
+{
+"host" : "lager",
+"port" : 3306,
+"user" : "ds",
+"password" : "HalloWach23",
+"pool_name" : "brecal_pool",
+"pool_size" : 20,
+"database" : "bremen_calling"
+}

src/server/BreCal/local_db.py

@@ -1,21 +1,25 @@
 import mysql.connector
 import pydapper
 import logging
+import json
+import os
 
 connection_pool = None
 
 def initPool():
     try:
         global connection_pool
-        connection_pool = mysql.connector.connect(
-            host="lager", # TODO: move these settings outside the code!
-            port=3306,
-            user="ds",
-            password="HalloWach23",
-            pool_name="brecal_pool",
-            pool_size=20,
-            database="bremen_calling"
-        )
+
+        config_path = './src/server/BreCal/connection_data.json'
+        print (os.getcwd())
+        if not os.path.exists(config_path):
+            print ('cannot find ' + config_path)
+            exit(1)
+
+        f = open(config_path);
+        connection_data = json.load(f)
+
+        connection_pool = mysql.connector.connect(**connection_data)
 
         commands = pydapper.using(connection_pool)
         data = commands.query_single("SELECT id from `user`")
@@ -24,3 +28,5 @@ def initPool():
     except mysql.connector.PoolError as e:
         logging.error(f"Failed to create connection pool: {e}")
         print(e)
+    except e:
+        print(e)