On 8 June 2010 09:45, Chris Withers <[email protected]> wrote:
> Hi All,
>
> What is this attribute actually used for?
>
> I see it present on IDataManager but I notice that zope.sqlalchemy's
> SessionDataManager doesn't have this attribute, with no apparent ill effect.
transaction_manager = zope.interface.Attribute(
"""The transaction manager (TM) used by this data manager.
This is a public attribute, intended for read-only use. The value
is an instance of ITransactionManager, typically set by the data
manager's constructor.
""")
This seems to be used only in the tests, I guess it would be useful if
you were using multiple transaction managers in a single thread. I've
now added it to zope.sqlalchemy's data manager.
Laurence
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