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elliotchance/7.py

Created December 4, 2019 22:56
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7.py
class SerializableTransaction(RepeatableReadTransaction):
def __init__(self, table, xid):
Transaction.__init__(self, table, xid)
self.existing_xids = self.table.active_xids.copy()
def record_is_visible(self, record):
is_visible = ReadCommittedTransaction.record_is_visible(self, record) \
and record['created_xid'] <= self.xid \
and record['created_xid'] in self.existing_xids
if is_visible:
self.table.locks.add(self, record['id'])
return is_visible
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