On Jan 2, 2008, at 7:56 PM, andresj wrote:
>
> Any ideas? And by the way, what does map_column do?
>
map_column is shorthand for this:
table = Table('sometable', metadata,
...
Column('somecolumn', ...)
)
mapper(Class, table, properties= {
'_somecolumn':table.c.somecolumn,
'somecolumn':synonym('_somecolumn')
})
so the argument does not apply to your "parent" relation since its not
a column-based attribute, its a relation(). Also the small snip you
sent didn't seem to have any need for a synonym on parent, unless
there are other properties in your code that weren't part of what you
sent.
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