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69 lines
2.5 KiB
Python
69 lines
2.5 KiB
Python
# This file is part of Indico.
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# Copyright (C) 2002 - 2015 European Organization for Nuclear Research (CERN).
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#
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# Indico is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 3 of the
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# License, or (at your option) any later version.
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#
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# Indico is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# 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 Indico; if not, see <http://www.gnu.org/licenses/>.
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from __future__ import unicode_literals
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from collections import defaultdict
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from indico.util.struct.enum import IndicoEnum
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from indico_livesync.models.queue import ChangeType
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class SimpleChange(int, IndicoEnum):
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deleted = 1
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created = 2
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updated = 4
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def process_records(records):
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"""Converts queue entries into object changes.
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:param records: an iterable containing `LiveSyncQueueEntry` objects
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:return: a dict mapping object references to `SimpleChange` bitsets
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"""
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changes = defaultdict(int)
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for record in records:
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if record.change != ChangeType.deleted and record.object is None:
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# Skip entries which are not deletions but have no corresponding objects.
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# Probably they are updates for objects that got deleted afterwards.
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continue
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if record.change == ChangeType.created:
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if record.type != 'category':
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changes[record.object_ref] |= SimpleChange.created
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elif record.change == ChangeType.deleted:
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if record.type != 'category':
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changes[record.object_ref] |= SimpleChange.deleted
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elif record.change in {ChangeType.moved, ChangeType.protection_changed}:
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for ref in _cascade(record):
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changes[ref] |= SimpleChange.updated
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elif record.change == ChangeType.title_changed:
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pass # XXX: included in data_changed
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elif record.change == ChangeType.data_changed:
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if record.type != 'category':
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changes[record.object_ref] |= SimpleChange.updated
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return changes
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def _cascade(record):
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yield record.object_ref
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for subrecord in record.iter_subentries():
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if subrecord.object:
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for item in _cascade(subrecord):
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yield item
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