Does anyone know of a clean way to pass file upload field data
to a rails controller and back to an edit form?
The problem is this: user fills out a (possibly lengthy) form,
then submits. If the form does not validate, we give them
back the form with most values filled in. But I don't know
how to re-seed the file upload fields. Among the problems
are that they seem to treated/interpreted differently on the
client side, depending on browser and OS. Rails never (reliably
anyway) gets to see the actual file path that is the usual
content of a file upload field. I think the problem is that
it's not really well defined what the "content" of a file upload
field is. Is it the data stream? Is it the file path?
How is this situation usually (simply) dealt with?
Thanks!
-glenn
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