def savepoint(self):
"""Savepoint context. On return, commit; on exception, roll back.
The effects of a savepoint happen durably all at once if
committed, or not at all if rolled back.
Savepoints may be nested. Parsed metadata and models are
cached in Python during a savepoint.
Example::
with bdb.savepoint():
bdb.execute('DROP GENERATOR foo')
try:
with bdb.savepoint():
bdb.execute('ALTER TABLE foo RENAME TO bar')
raise NeverMind
except NeverMind:
# No changes will be recorded.
pass
bdb.execute('CREATE GENERATOR foo ...')
# foo will have been dropped and re-created.
"""
with txn.bayesdb_savepoint(self):
yield
def savepoint(self):
"""Savepoint context. On return, commit; on exception, roll back.
Savepoints may be nested. Parsed metadata and models are
cached in Python during a savepoint.
"""
with txn.bayesdb_savepoint(self):
yield
def savepoint(self):
"""Savepoint context. On return, commit; on exception, roll back.
Savepoints may be nested. Parsed metadata and models are
cached in Python during a savepoint.
"""
with txn.bayesdb_savepoint(self):
yield