Done; thanks :)
Yeah, 1124 would be a suspicious magic number ;)
There are probably other cases where this (or a similar) patch can be
applied; I've been spotting several little holes in some of the tag libs but
am pretty swamped at the moment. It'll all get done.
d.
--- Dale Newfield <[EMAIL PROTECTED]> wrote:
> Dale Newfield wrote:
> > Martin Gainty wrote:
> >> this is the applicable code in my copy of optiontransferselect.ftl
>
> Thanks for making me look at this--it led me straight to my problem!
>
> > So we know there is a problem with the freemarker libraries, and that
> > it's either in ?exists, or stack.findString(), or in the assumption that
> > the first being true implies the second will always produce a valid
> > result. Is it true that if it has a value that value must be
> > extractable as a string? The freemarker docs suggest that maybe
> > ?has_content would be better than ?exists ...
>
> This rational is almost right, but has a big hole. We're asking whether
> the tag has a parameter set, and then assuming the data has not null for
> that attribute. I indeed had a piece of data with null for that value,
> which caused my problem. Since that attribute was derived, I was able
> to modify my model object to return "" in that case instead of null, and
> I'm golden. I might suggest this alteration to the .ftl file, though:
>
> <#if parameters.doubleListValue?exists><#t/>
> + <#if
> stack.findString(parameters.doubleListValue)?has_content><#t/>
> <#assign doubleItemValue =
> stack.findString(parameters.doubleListValue) /><#t/>
> + </#if><#t/>
> <#else><#t/>
> <#assign doubleItemValue = stack.findString('top') /><#t/>
> </#if><#t/>
>
> Now I don't have to change interfaces for large groups! Yay! Thanks!
>
> -Dale
>
> P.S.: I shoulda known that 1124 was not a magic enough number to be a
> systemic problem--that number should have led me to look at my data
> sooner :-/.
>
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