schemas/__init__.py
author Nicolas Chauvat <nicolas.chauvat@logilab.fr>
Wed, 16 Oct 2013 11:38:06 +0200
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# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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#
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# This file is part of CubicWeb.
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#
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation, either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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"""some constants and classes to define schema permissions"""
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__docformat__ = "restructuredtext en"
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from cubicweb.schema import RO_REL_PERMS, RO_ATTR_PERMS, \
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     PUB_SYSTEM_ENTITY_PERMS, PUB_SYSTEM_REL_PERMS, \
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     ERQLExpression, RRQLExpression
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# permissions for "meta" entity type (readable by anyone, can only be
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# added/deleted by managers)
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META_ETYPE_PERMS = PUB_SYSTEM_ENTITY_PERMS # XXX deprecates
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# permissions for "meta" relation type (readable by anyone, can only be
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# added/deleted by managers)
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META_RTYPE_PERMS = PUB_SYSTEM_REL_PERMS # XXX deprecates
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# permissions for relation type that should only set by hooks using unsafe
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# execute, readable by anyone
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HOOKS_RTYPE_PERMS = RO_REL_PERMS # XXX deprecates
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from logilab.common.modutils import LazyObject
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from logilab.common.deprecation import deprecated
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class MyLazyObject(LazyObject):
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    def _getobj(self):
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        try:
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            return super(MyLazyObject, self)._getobj()
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        except ImportError:
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            raise ImportError('In cubicweb 3.14, function %s has been moved to '
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                              'cube localperms. Install it first.' % self.obj)
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for name in ('xperm', 'xexpr', 'xrexpr', 'xorexpr', 'sexpr', 'restricted_sexpr',
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             'restricted_oexpr', 'oexpr', 'relxperm', 'relxexpr', '_perm'):
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    msg = '[3.14] import %s from cubes.localperms' % name
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    globals()[name] = deprecated(msg, name=name, doc='deprecated')(MyLazyObject('cubes.localperms', name))