[ZODB-Dev] Re: Why does this useage of __setstate__ fail?

[Tres Seaver]

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Mika, David P (GE, Research) wrote:

>> Can someone explain why the test below  (test_persistence) is failing?
>> I am adding an attribute after object creation with __setstate__, but
>> I can't get the new attribute to persist.

You are mutating the object *inside* your __setstate__:  the ZODB
persistence machinery clears the '_p_changed' flag after you *exit* from
'__setstate__':  the protocol is not intended to support a persistent
"write-on-read".


Tres.
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Tres Seaver          +1 540-429-0999          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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