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Remove Elixir library

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Update SQLAlchemy
This commit is contained in:
Ruud
2014-01-26 16:29:16 +01:00
parent f91081e39c
commit 1120b4ab51
178 changed files with 43610 additions and 35304 deletions
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libs/sqlalchemy/ext/horizontal_shard.py
+21 -21
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@@ -1,5 +1,5 @@
# ext/horizontal_shard.py
# Copyright (C) 2005-2013 the SQLAlchemy authors and contributors <see AUTHORS file>
# Copyright (C) 2005-2014 the SQLAlchemy authors and contributors <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php
@@ -14,13 +14,13 @@ the source distribution.
"""
from sqlalchemy import exc as sa_exc
from sqlalchemy import util
from sqlalchemy.orm.session import Session
from sqlalchemy.orm.query import Query
from .. import util
from ..orm.session import Session
from ..orm.query import Query
__all__ = ['ShardedSession', 'ShardedQuery']
class ShardedQuery(Query):
def __init__(self, *args, **kwargs):
super(ShardedQuery, self).__init__(*args, **kwargs)
@@ -72,28 +72,29 @@ class ShardedQuery(Query):
else:
return None
class ShardedSession(Session):
def __init__(self, shard_chooser, id_chooser, query_chooser, shards=None,
query_cls=ShardedQuery, **kwargs):
"""Construct a ShardedSession.
:param shard_chooser: A callable which, passed a Mapper, a mapped instance, and possibly a
SQL clause, returns a shard ID. This id may be based off of the
attributes present within the object, or on some round-robin
scheme. If the scheme is based on a selection, it should set
whatever state on the instance to mark it in the future as
:param shard_chooser: A callable which, passed a Mapper, a mapped
instance, and possibly a SQL clause, returns a shard ID. This id
may be based off of the attributes present within the object, or on
some round-robin scheme. If the scheme is based on a selection, it
should set whatever state on the instance to mark it in the future as
participating in that shard.
:param id_chooser: A callable, passed a query and a tuple of identity values, which
should return a list of shard ids where the ID might reside. The
databases will be queried in the order of this listing.
:param id_chooser: A callable, passed a query and a tuple of identity
values, which should return a list of shard ids where the ID might
reside. The databases will be queried in the order of this listing.
:param query_chooser: For a given Query, returns the list of shard_ids where the query
should be issued. Results from all shards returned will be combined
together into a single listing.
:param query_chooser: For a given Query, returns the list of shard_ids
where the query should be issued. Results from all shards returned
will be combined together into a single listing.
:param shards: A dictionary of string shard names to :class:`~sqlalchemy.engine.base.Engine`
objects.
:param shards: A dictionary of string shard names
to :class:`~sqlalchemy.engine.Engine` objects.
"""
super(ShardedSession, self).__init__(query_cls=query_cls, **kwargs)
@@ -117,12 +118,11 @@ class ShardedSession(Session):
shard_id=shard_id,
instance=instance).contextual_connect(**kwargs)
def get_bind(self, mapper, shard_id=None, instance=None, clause=None, **kw):
def get_bind(self, mapper, shard_id=None,
instance=None, clause=None, **kw):
if shard_id is None:
shard_id = self.shard_chooser(mapper, instance, clause=clause)
return self.__binds[shard_id]
def bind_shard(self, shard_id, bind):
self.__binds[shard_id] = bind