Hi!
My question is about automatic updating (__in memory__, not db) one_to_many
relationships before flushing the session. Is that possible?
Trivial example:
master_table = Table('master', metadata,
Column('master_id', Integer, primary_key = True),
┘.
)
detail_table = Table('detail', metadata,
Column('detail_id', Integer, primary_key = True),
┘
Column('master_id', Integer, ForeignKey("master.master_id"))
Objects and mappers are:
class Master(object):
pass
Class Detail(object):
pass
detail_mapper=mapper(Detail,detail_table)
detail_mapper.add_property('master_ref', relation(Master))
I get detail object and set detail.master_id to another value.
After change of detail.master_id we have:
detail.master_id<>detail.master_ref.master_id.
Can SA automatically switch detail.master_ref to the
correct Master object?
Thanks in advance, alex.
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