mirror of
https://github.com/JonathanHerrewijnen/calibre-web.git
synced 2024-11-14 07:03:50 +00:00
46 lines
1.0 KiB
Python
46 lines
1.0 KiB
Python
# dialects/__init__.py
|
|
# Copyright (C) 2005-2013 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
|
|
|
|
__all__ = (
|
|
'drizzle',
|
|
'firebird',
|
|
# 'informix',
|
|
'mssql',
|
|
'mysql',
|
|
'oracle',
|
|
'postgresql',
|
|
'sqlite',
|
|
'sybase',
|
|
)
|
|
|
|
from .. import util
|
|
|
|
def _auto_fn(name):
|
|
"""default dialect importer.
|
|
|
|
plugs into the :class:`.PluginLoader`
|
|
as a first-hit system.
|
|
|
|
"""
|
|
if "." in name:
|
|
dialect, driver = name.split(".")
|
|
else:
|
|
dialect = name
|
|
driver = "base"
|
|
try:
|
|
module = __import__('sqlalchemy.dialects.%s' % (dialect, )).dialects
|
|
except ImportError:
|
|
return None
|
|
|
|
module = getattr(module, dialect)
|
|
if hasattr(module, driver):
|
|
module = getattr(module, driver)
|
|
return lambda: module.dialect
|
|
else:
|
|
return None
|
|
|
|
registry = util.PluginLoader("sqlalchemy.dialects", auto_fn=_auto_fn)
|