async def set_schema(self, schema):
try:
get_schema(schema['type']).validate_schema(schema['schema'])
except KeyError:
pass # TODO Exception
blob = await Blob.create(schema)
return await Journal.create(
blob=blob._id,
collection=self._id,
namespace=self.namespace,
action=Action.UPDATE_SCHEMA,
record_id=self.SCHEMA_RESERVED,
)
async def set_schema(self, schema):
try:
get_schema(schema["type"]).validate_schema(schema["schema"])
except KeyError:
pass # TODO Exception
blob = await Blob.create(schema)
return await Journal.create(
blob=blob._id,
collection=self._id,
namespace=self.namespace,
action=Action.UPDATE_SCHEMA,
record_id=self.SCHEMA_RESERVED,
)
async def get_schema(self):
try:
entry = next(await Journal.find(
(Journal.collection == self._id) &
(Journal.namespace == self.namespace) &
(Journal.record_id == self.SCHEMA_RESERVED) &
((Journal.action == Action.UPDATE_SCHEMA.value) |
(Journal.action == Action.DELETE_SCHEMA.value)),
limit=1,
sort=sort.Descending(Journal.modified_by)))
except StopIteration:
return None
if entry.action == Action.DELETE_SCHEMA:
return None
blob = await entry.blob
return get_schema(blob['type'])(blob['schema'])
async def get_schema(self):
try:
entry = next(
await Journal.find(
(Journal.collection == self._id)
& (Journal.namespace == self.namespace)
& (Journal.record_id == self.SCHEMA_RESERVED)
& ((Journal.action == Action.UPDATE_SCHEMA.value) | (Journal.action == Action.DELETE_SCHEMA.value)),
limit=1,
sort=sort.Descending(Journal.modified_by),
)
)
except StopIteration:
return None
if entry.action == Action.DELETE_SCHEMA:
return None
blob = await entry.blob
return get_schema(blob["type"])(blob["schema"])
