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annotate roundup/backends/__init__.py @ 1873:f63aa57386b0

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Backend improvements. - using Zope3's test runner now, allowing GC checks, nicer controls and coverage analysis - all RDMBS backends now have indexes on several columns - added testing of schema mutation, fixed rdbms backends handling of a couple of cases - !BETA! added postgresql backend, needs work !BETA!
author Richard Jones <richard@users.sourceforge.net>
date Sat, 25 Oct 2003 22:53:26 +0000
parents bd127cafe3a8
children fc52d57c6c3e
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1 #
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2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
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3 # This module is free software, and you may redistribute it and/or modify
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4 # under the same terms as Python, so long as this copyright message and
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5 # disclaimer are retained in their original form.
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6 #
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7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
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8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
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9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
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10 # POSSIBILITY OF SUCH DAMAGE.
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11 #
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12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
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15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
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16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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17 #
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18 # $Id: __init__.py,v 1.25 2003-10-25 22:53:26 richard Exp $
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20 ''' Container for the hyperdb storage backend implementations.
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22 The __all__ variable is constructed containing only the backends which are
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23 available.
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24 '''
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26 __all__ = []
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27
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28 for backend in ['anydbm', ('mysql', 'MySQLdb'), 'bsddb', 'bsddb3', 'sqlite',
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29 'metakit', ('postgresql', 'psycopg')]:
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30 if len(backend) == 2:
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31 backend, backend_module = backend
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32 else:
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33 backend_module = backend
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34 try:
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35 globals()[backend] = __import__('back_%s'%backend, globals())
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36 __all__.append(backend)
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37 except ImportError, e:
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38 if not str(e).startswith('No module named %s'%backend_module):
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39 raise
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41 # vim: set filetype=python ts=4 sw=4 et si
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