This is a mistake in the book. Thanks for reporting it. On Friday, 24 August 2012 08:00:21 UTC-5, Cliff Kachinske wrote: > > The book says use code like this: > > if request.vars.image!=None: > form.vars.image_filename = request.vars.image.filename > > The code uses SQLFORM without defining download. When editing the record, > if the upload field has nothing in it, it is empty, not None. So this > exception gets raised: > > request.vars.specification.filename > AttributeError: 'str' object has no attribute 'filename' > > This code works. > > If request.vars.image: > form.vars.specification_filename = request.vars.specification.filename > > > I can post model and controller if necessary. > >
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