[ic] mv_data_function and blank fields not working

[interchange-users@interchange.redhat.com]

On Wed, Jun 05, 2002 at 05:12:56AM -0700, Tim Nelson wrote:
> I have a form that is using mv_data_function to update
> fields in the userdb.  The field allow_cat has a list
> of categories the user can buy from.  I want to
> be able to have a blank field mean "allow all
> categories".  Problem is I am using a <select> list
> and collecting the data using mv_form_profile, but
> when I set the CGI variable to "" IC won't
> overwrite the existing value.  Any I missing
> something obvious here? Thanks.
> 
> For example ... I have 
> <INPUT TYPE=HIDDEN NAME="mv_form_profile" VALUE="Check
> It">
> 
> [set Check It]
> [perl]
> $CGI->{allow_cat} = "Tools";  # this line works fine.
> $CGI->{allow_cat} = ""; # doing this won't update the
> field.

The empty string is going to cause you more pain in IC and
HTML than it's worth.  Better to create a dummy category
'ALL'.


> ....
> ....
> 
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