[FIX] orm._check_concurrency: pop values from context after check to avoid false positives (e.g. nested writes) - one check per transaction is enough
bzr revid: odo@openerp.com-20101025100540-oy374900sveb2o5f
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@ -3191,15 +3191,17 @@ class orm(orm_template):
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return
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if not (context.get(self.CONCURRENCY_CHECK_FIELD) and self._log_access):
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return
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def key(oid):
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return "%s,%s" % (self._name, oid)
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santa = "(id = %s AND %s < COALESCE(write_date, create_date, now())::timestamp)"
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for i in range(0, len(ids), cr.IN_MAX):
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sub_ids = tools.flatten(((oid, context[self.CONCURRENCY_CHECK_FIELD][key(oid)])
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for oid in ids[i:i+cr.IN_MAX]
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if key(oid) in context[self.CONCURRENCY_CHECK_FIELD]))
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if not sub_ids: continue
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cr.execute("SELECT 1 FROM %s WHERE %s" % (self._table, " OR ".join([santa]*(len(sub_ids)/2))), sub_ids)
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check_clause = "(id = %s AND %s < COALESCE(write_date, create_date, now())::timestamp)"
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for sub_ids in cr.split_for_in_conditions(ids):
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ids_to_check = []
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for id in sub_ids:
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id_ref = "%s,%s" % (self._name, id)
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update_date = context[self.CONCURRENCY_CHECK_FIELD].pop(id_ref, None)
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if update_date:
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ids_to_check.extend([id, update_date])
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if not ids_to_check:
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continue
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cr.execute("SELECT 1 FROM %s WHERE %s" % (self._table, " OR ".join([check_clause]*(len(ids_to_check)/2))), tuple(ids_to_check))
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if cr.fetchone():
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raise except_orm('ConcurrencyException', _('Records were modified in the meanwhile'))
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