remove register creation bug and enforce foreign key constraint on te…

…sting sqlite database

domain/base.py

@@ -14,6 +14,14 @@
 Session = sessionmaker()
 if os.environ.get("SQLALCHEMY_DATABASE_URI"):
     Engine = create_engine(os.environ.get("SQLALCHEMY_DATABASE_URI"))
+
+
+    def enable_fk_listener(dbapi_connection, connection_record):  # enabling foreign key constraint in the test database
+        dbapi_connection.execute('pragma foreign_keys=ON')
+
+
+    event.listen(Engine, 'connect', enable_fk_listener)
+
 else:
     Engine = create_engine('mysql+mysqldb://{0}:{1}@{2}:{3}/{4}'.format(os.environ.get('username'),
                                                                         os.environ.get('password'),

services/authentication.py

@@ -59,7 +59,7 @@ def register(session: Session, email: str, password: str, given_name: str, last_
         # Everything seems fine, so we go ahead and create the user & the linked account.
         password_hash = passwordService.hash(password)
         new_user = User(role=UserType.VOLUNTEER, password=password_hash, first_name=given_name, last_name=last_name,
-                        mobile_number=phone, email=email, preferred_hours={}, experience_years=0, possibleRoles=["Basic"],
+                        mobile_number=phone, email=email, preferred_hours=None, experience_years=0, possibleRoles=["Basic"],
                         qualifications=[],
                         availabilities={"Friday": [], "Monday": [], "Sunday": [], "Tuesday": [], "Saturday": [],
                                         "Thursday": [], "Wednesday": []},