def find_by_key_and_version(self, entity_name: str, key: str, version: str) -> Optional[AbstractBusinessEntity]:
business_entity_class = BusinessEntityUtils.get_entity_class(entity_name)
try:
business_entity = business_entity_class.objects.get(key=key, version=version)
except business_entity_class.DoesNotExist:
business_entity = None
return business_entity
def send_entity_create_message(self, entity: AbstractBusinessEntity, tags=None):
if tags is None:
tags = []
self._send_message(
EntityCreateMessage(
BusinessEntityUtils.get_entity_type_name(entity),
entity.key,
entity.version,
entity.data,
entity.created,
tags,
)
)
def update_or_create(
self, entity_name: str, key: str, version: str, user: User, data: str
) -> (AbstractBusinessEntity, bool):
business_entity_class = BusinessEntityUtils.get_entity_class(entity_name)
business_entity, created = business_entity_class.objects.update_or_create(
key=key, version=version, defaults={"key": key, "version": version, "publisher": user, "data": data}
)
if created:
self._message_publisher.send_entity_create_message(business_entity)
else:
self._message_publisher.send_entity_update_message(business_entity)
return created
def send_entity_delete_message(self, entity: AbstractBusinessEntity):
delete_message = EntityDeleteMessage(
BusinessEntityUtils.get_entity_type_name(entity), entity.key, entity.version
)
self._send_message(delete_message)
def delete_by_key(self, entity_name: str, key: str) -> int:
business_entity_class = BusinessEntityUtils.get_entity_class(entity_name)
return self.delete_by_queryset(business_entity_class.objects.filter(key=key))
def find_all(self, entity_name: str) -> QuerySet:
business_entity_class = BusinessEntityUtils.get_entity_class(entity_name)
return business_entity_class.objects.all()