>
> db.define_table (person, Field('name'),format='%(name)s')
> db.define_table (dog, Field('name'),Field('owner_id',db.person)
>
> Using this is okay :
> db.dog.owner_id.represent=lambda id,row:db.person(id).name
>
> But using this fails :
> db.dog.owner_id.represent=lambda id,row:db.person(id)._format
>

_format is an attribute of the db.person table object. However, 
db.person(id) is a Row object (representing a single record from the 
db.person table) -- it does not have a _format attribute. Perhaps you are 
looking for something like this:

db.dog.owner_id.represent = lambda id, row: db.person._format % db.person(id
)

Anthony

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