def delete_roleoperations(role_id=None, operation_key=None, modifier_id=None):
query = RoleOperation.all()
if role_id is not None:
query.filter("role_id =", role_id)
if operation_key is not None:
query.filter("operation_key =", operation_key)
query.delete(modifier_id)
def copy_roleoperations(role_id_from, role_id_to, modifier_id):
query = RoleOperation.all()
query.filter("role_id =", int(role_id_from))
roleoperations = query.fetch()
for ro in roleoperations:
create_roleoperation(ro.role_id, ro.operation_key, modifier_id)
