Hi Michael Bayer,
1)
I tried your suggestion, but it not updating the value of "type" column in
the database.
instance_of_B.__class__ = C_Class
instance_of_B.type = "type_c"
2)
* So, i tried like this, and it updating he value of "type" column in the
database.
* What you think?, is it a good way to solve this issue ?
zope transaction begin
Some DBSession query and add statements
DBSession.execute("update my_table set type='%s' where id='%s';"
%(new_type, id))
DBSession.execute("commit;")
Some DBSession query and add statements
zope transaction commit
Thanks,
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