El lunes, 23 de abril de 2012 22:43:39 UTC-3, Anthony escribió: > > tb_categorias.format = '%(nombre)s' #This does not work >> >> tb_obras.categoria.requires = IS_IN_DB(db, tb_categorias.id, >> '%(nombre)s') >> > > Both the "format" argument to define_table() and the "label" argument to > IS_IN_DB() can be a function that takes a row, so you can just define a > function that takes a record from categorias and returns the label. If > that's all you need nombre() for, then you don't even have to bother making > it a virtual field. If you need a virtual field for other purposes and > don't want to have to write the function twice, I'm not sure if it would > work, but you might even be able to do lambda r: r.nombre. Note, you > might consider using a new style virtual > field<http://web2py.com/books/default/chapter/29/6#New-style-virtual-fields-%28experimental%29> > . > > Anthony >
Thanks Anthony. I was trying to do something not very orthodox and I thought it would work. I'll try another way. Jose > >
