hooks/bookmark.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Fri, 14 Aug 2009 14:31:25 +0200
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child 3376 f5c69485381f
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use ._cw instead of .cw_req
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"""bookmark related hooks
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:organization: Logilab
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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__docformat__ = "restructuredtext en"
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from cubicweb.selectors import entity_implements
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from cubicweb.server import hook
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class AutoDeleteBookmarkOp(hook.Operation):
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    bookmark = None # make pylint happy
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    def precommit_event(self):
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        if not self.session.deleted_in_transaction(self.bookmark.eid):
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            if not self.bookmark.bookmarked_by:
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                self.bookmark.delete()
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class DelBookmarkedByHook(hook.Hook):
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    """ensure user logins are stripped"""
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    __id__ = 'autodelbookmark'
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    __select__ = hook.Hook.__select__ & entity_implements('bookmarked_by',)
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    category = 'bookmark'
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    events = ('after_delete_relation',)
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    def __call__(self):
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        AutoDeleteBookmarkOp(self._cw,
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                             bookmark=self._cw.entity_from_eid(self.eidfrom))