I've had the most awful time trying to get the actual filename of an
uploaded file to appear in my database. I've gone over and over the
advice, but it has never worked for me. I was beginning to suspect evil
spirits in my code when I ran across the problem...
cgi.FieldStorage does NOT behave like other Python variables in that it
doesn't resolve to True if the object contains data. It resolves to False
ALL THE TIME, whether it has data or not.
I was dutifully following advice and had code that looked like:
if request.vars.upload:
form.vars.filename = request.vars.upload.filename
But guess what? The code inside "if" NEVER RUNS.
For now I've worked around it by using the method "has_key()" on the
cgi.FieldStorage object:
if request.vars.has_key('upload'):
form.vars.filename = request.vars.upload.filename
And this works.
The "proper" fix is probably to modify cgi.FieldStorage so that is resolves
to True if it has data and False if empty, like all other Python objects.
But I thought I'd pass along my epiphany in case others are wondering if
their code is inhabited by evil spirits.
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