db request at script beginning

Signed-off-by: Ebbe Baß <ebbe.bass>

server/app.py

@@ -43,6 +43,11 @@ db.autocommit(True)
 
 mqtt_client_id = "PiXelTubeMaster-"+wlan_mac_address
 
+cur = db.cursor()
+cur.execute("SELECT mac_address, universe, dmx_address FROM tubes")
+TUBE_INDEX = cur.fetchall()
+cur.close()
+
 # Function to register a tube in the database
 def register_tube(mac_address):
     cur = db.cursor()
@@ -141,10 +146,10 @@ def mqtt_publisher():
             sys.exit()
 
 def update_tube_index():
+    global TUBE_INDEX
     while True:
         cur = db.cursor()
         cur.execute("SELECT mac_address, universe, dmx_address FROM tubes")
-        global TUBE_INDEX
         TUBE_INDEX = cur.fetchall()
         cur.close()
         print("Updated index: "+str(TUBE_INDEX))
@@ -155,6 +160,5 @@ if __name__ == "__main__":
     tube_index_updater_thread.start()
     flask_thread = Process(target=flask_api)
     flask_thread.start()
-    print(globals())
     publisher_thread = Process(target=mqtt_publisher)
     publisher_thread.start()