[web2py] edit a record does not show uploaded files

[António Ramos]

hello this is my controller

def edittrab():
    record = db.trabalhador(request.args(0)) or redirect(URL('index'))
    form = SQLFORM(db.trabalhador, record)
    if form.accepts(request.vars, session):
        response.flash = 'registo actualizado com sucesso'
        redirect(URL())
    elif form.errors:
        response.flash = 'erros detectados'
    return dict(form=form)


my view

{{extend 'layout.html'}}

{{=form}}

my upload fields do no show the link to the file.

Why?

thank you

António

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