0c789f3966
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@1658 fd906abe-77d9-0310-91a1-e0d9ade77398
71 lines
2.5 KiB
Python
71 lines
2.5 KiB
Python
#
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# Copyright (c) 2006 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Versioning interfaces.
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$Id$
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"""
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from zope.interface import Interface, Attribute
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from zope import interface, component, schema
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class IVersionable(Interface):
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""" An object that may exist in different versions.
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"""
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versionNumbers = Attribute(u'A tuple of version numbers for the context '
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'object, with a number for each level')
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variantIds = Attribute(u'A tuple of variant IDs (e.g. for language '
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'varuants) for the context object')
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versionId = Attribute(u'A string identifying this version, e.g. 1.1_de, '
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'derived from versionNumbers and variantIds')
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master = Attribute(u'The object (master version) that should be used for access to '
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'version-independent attributes and central '
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'versioning metadata')
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parent = Attribute(u'The version this one was created from')
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comment = Attribute(u'Somme informative text provided when creating '
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'this version')
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# attributes taken from the master version:
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versions = Attribute(u'A dictionary of all versions of this object')
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currentVersion = Attribute(u'The default version to be used for editing')
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releasedVersion = Attribute(u'The default version to be used for viewing')
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def createVersion(level=1):
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""" Create a copy of the context object as a new version and return it.
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The level of the version says if it is a minor (1) or major (0)
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version. (It would even be possible to have more than two levels.
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"""
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def createVariant(id, level=0):
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""" Create a copy of the context object as a new variant and return it.
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The level provides the position in the variantIds tuple.
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"""
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