def to_internal(cls, key, pointer, *args, **kwargs):
"""
:param key: document key,
:param pointer: coltrane.appstorage.datatypes.Pointer
:return: internal view of Pointer
:rtype: :class:`DbRef`
"""
bucket = pointer.bucket
document_key = pointer.key
id = _internal_id(*args, bucket=bucket, deleted=0, document_key=document_key)
return key, DBRef(bucket, id)
def get(self, app_id, user_id, bucket, key):
""" Read operation for CRUD service.
Parameters:
app_id: String, application id
user_id: String, user id
document_key: String, document key
bucket: String, type of document
Returns founded document or None if object not found """
# validations
if key is None:
raise InvalidDocumentKeyError('Document key must be not null')
# logic
document_id = _internal_id(app_id, user_id, bucket, 0, key)
res = self.entities.find_one({intf.ID: document_id, intf.DELETED: False})
if res is None:
return None
return _to_external(res)
def _from_dict(doc):
"""
Gets document as a parameter of dict type.
Runs through top level keys. If object by key is dict
type then invokes _from_doc recursively. If object by
key is list then invokes _from_list.
"""
internal = {}
for key in doc:
val = doc[key]
if key == extf.KEY:
document_key = val
document_id = _internal_id(app_id, user_id, bucket, 0, document_key)
internal[intf.ID] = document_id
else:
if type(val) == dict:
val = _from_dict(val)
elif type(val) == list:
val = _from_list(val)
elif isinstance(val, BaseType):
key, val = _convert_custom_type(key, val)
internal[key] = val
return internal