Added start blocke on no database connection available

main.py

@@ -28,6 +28,7 @@ from lib.DB.ContactModel import ContactModel
 # type=""
 
 bad_config = False
+db_con = False
 address_model = None
 business_model = None
 business_type = None
@@ -35,14 +36,14 @@ contact_model = None
 user = None
 
 def initializeProgram():
-    # print(f"In {__file__} file, initializeProgram()")
+    #print(f"In {__file__} file, initializeProgram()")
     global address_model, bad_config, business_model, user, business_type, contact_model
     if not bad_config:
         dbconf = config.getConfig()['database']
         DbManager(dbconf)
     bad_config = False
-    business_model = BusinessModel()
     user = UserManager()
+    business_model = BusinessModel()
     address_model = AddressModel()
     business_type = BTypeModel()
     contact_model = ContactModel()
@@ -78,9 +79,12 @@ if __name__ == "__main__":
         config.configurationReady.connect(initializeProgram)
     else:
         initializeProgram()
+        if DbManager().getConnection():
+            db_con = True
 
 
     engine.rootContext().setContextProperty("bad_config", bad_config) #     print(f"Fehler: {i}")
+    engine.rootContext().setContextProperty("db_con", db_con)
     engine.rootContext().setContextProperty("config", config)
 
     engine.load(qml_file)