def cancel_active_requests(self, requester_id):
for request in self.list_active_per_user(requester_id):
request.status = "canceled"
if hasattr(request, "driver_id") and request.driver_id:
Helpers.dispatch(
"notify_driver_request_canceled",
"Request canceled: %s" % request.serialize()
)
self.save(request)
def create_request(self, to_obj, **args):
if isinstance(to_obj, dict):
to_obj = self.to_class(**to_obj)
# check if user already has an active request
active_requests = list(self.list_active_per_user(to_obj.requester_id))
if len(active_requests) > 0:
raise UserHasActiveRequest()
result = self.create(to_obj, **args)
try:
# send message to external service to find and notify drivers
# to meet the request
Helpers.dispatch(
"find_and_notify_drivers",
"New driver request: %s" % result.serialize()
)
return result
except Exception as e:
self.cancel_active_requests(to_obj.requester_id)
raise e
