def get_by_key_name(cls, key_names, parent=None, **kwargs):
try:
if not parent:
parent = cls.db_parent
parent = db._coerce_to_key(parent)
except db.BadKeyError, e:
raise db.BadArgumentError(str(e))
def get_by_key_name(cls, key_names, parent=None, **kwargs):
"""Get instance of Model class by its key's name.
Keeps the same comportement of db.Model.get_by_key_name()
TODO(sahid): Needs doc.
"""
try:
parent = db._coerce_to_key(parent)
except db.BadKeyError, e:
raise db.BadArgumentError(str(e))
def get_by_id(cls, ids, parent=None, **kwds):
"""Get instance of Model class by id from the given storage layers.
Args:
See pdb.get
Inherited:
ids: A single id or a list of ids.
parent: Parent of instances to get. Can be a model or key.
"""
try:
parent = db._coerce_to_key(parent)
except db.BadKeyError, e:
raise db.BadArgumentError(str(e))
def _to_mutexes(mutexes_or_keys):
"""Normalizes and type checks the given sequence.
Args:
mutexes_or_keys: sequence of Mutex objects or keys
Returns:
list of Mutexes
"""
mutexes = []
for arg in mutexes_or_keys:
if isinstance(arg, Mutex):
mutexes.append(arg)
elif isinstance(arg, db.Key):
mutexes.append(Mutex.get(arg))
else:
raise db.BadArgumentError(
'Expected a Mutex instance or key; received %s (a %s).' %
(arg, datastore.typename(arg)))
return mutexes