def filter(self, cls_or_collection, query, raw=False, only=None):
"""
Filter objects from the database that correspond to a given set of properties.
See :py:meth:`blitzdb.backends.base.Backend.filter` for documentation of individual parameters
.. note::
This function supports all query operators that are available in MongoDB and returns
a query set that is based on a MongoDB cursor.
"""
if not isinstance(cls_or_collection, six.string_types):
collection = self.get_collection_for_cls(cls_or_collection)
cls = cls_or_collection
else:
collection = cls_or_collection
cls = self.get_cls_for_collection(collection)
compiled_query = self.compile_query(query)
args = {}
if only != None:
args['fields'] = only
return QuerySet(self,
cls,
self.db[collection].find(compiled_query, **args),
raw=raw,
only=only)
def filter(self,
cls_or_collection,
query,
sort_by=None,
limit=None,
offset=None):
if not isinstance(cls_or_collection, str) and not isinstance(
cls_or_collection, unicode):
collection = self.get_collection_for_cls(cls_or_collection)
cls = cls_or_collection
else:
collection = cls_or_collection
cls = self.get_cls_for_collection(collection)
compiled_query = self.serialize(query, convert_keys_to_str=True)
return QuerySet(self, cls, self.db[collection].find(compiled_query))
def filter(self, cls_or_collection, query, sort_by=None, limit=None, offset=None):
"""
Filter objects from the database that correspond to a given set of properties.
See :py:meth:`blitzdb.backends.base.Backend.filter` for documentation of individual parameters
.. note::
This function supports all query operators that are available in SQLAlchemy and returns a query set
that is based on a SQLAlchemy cursor.
"""
if not isinstance(cls_or_collection, six.string_types):
collection = self.get_collection_for_cls(cls_or_collection)
cls = cls_or_collection
else:
collection = cls_or_collection
cls = self.get_cls_for_collection(collection)
compiled_query = self.compile_query(query)
return QuerySet(self, cls, self.db[collection].find(compiled_query))