I use in a method this
form=crud.read(db.evento,evento)
and the html vies is very simple
{{extend 'layout.html'}}
<h1>Evento</h1>
{{=form}}
how to add a simple button to go back in the previous page? I tried
form.add_button('Back', URL('index'))
but I have this error
<type 'exceptions.AttributeError'> 'NoneType' object has no attribute
'parent'
Thanks
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