def decorated_function(course_id, *args, **kwargs):
assignment_id = request.values.get('assignment_id', None)
# there is an assignment_id
if assignment_id is None:
return jsonify(success=False, message="No assignment id")
# It's an integer value
try:
assignment_id = int(assignment_id)
except ValueError:
return jsonify(success=False,
message="Assignment ID wasn't an integer")
if not Assignment.is_in_course(assignment_id, course_id):
return jsonify(
success=False,
message="That assignment id does not belong to that course.")
return f(*args, course_id=course_id, **kwargs)
