Re: Overriding user input on errors

Mike Orr wrote:
> I have a composite control for attachment management.  It has radio
> buttons for keep/replace/delete, and a file upload for "replace".  The
> upload must be filled for "replace", and empty for the other two.  The
> default is "keep".
> 
> So the user chooses "delete" and uploads a file.  The chained
> validator rejects it but the "delete" button remains selected.  I want
> to override the user input and reselect "keep".  I'm using Pylons
> @validate so I have to do it in the validator.  I tried updating the
> 'field_dict' arg in .validate_python() but it ignored it.  Is there
> another way to do this?

I think this will be hard, because in the case of an error the form is 
filled based on the request values, not anything from a validator.  That 
is, we try to offer up the form in the same state it was submitted. 
File controls are an exception, as you can't fill those in.

I think this would have to happen in @validate somehow.

Luke and Anil (copied) had a patch to disable the filling-in of certain 
fields in the validate decorator.  Maybe that patch would be useful (if 
one of you could send it on to Mike).

-- 
Ian Bicking : [email protected] : http://blog.ianbicking.org

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