Posted by Alessandro Vernet on Dec 28, 2009; 10:13pm
URL: https://discuss.orbeon.com/Read-Write-to-calculated-bind-tp955564p990007.html

Andy,

On Mon, Dec 28, 2009 at 12:12 PM, Andrew Bailey <[hidden email]> wrote:
> If I were to set readonly="false()" I think I would need to have, two
> functions: the exslt function str:tokenize to split the string "1 2 3" (is
> this supported in orbeon?) and the inverse concat to join them back again.

You can use tokenize(), which is an XPath 2.0 function:
http://www.w3.org/TR/xpath-functions/#func-tokenize
And the opposite would be string-join(), also standard in XPath 2.0:
http://www.w3.org/TR/xpath-functions/#func-string-join

> Is there any way to specify the calculate function and the inverse of the
> calculate in a bind, or using events?
> Ill also look into writing a custom xbl component.

You'll have to use events for that, and you can find some inspiration
in the fr:dropdown-dates which does something very similar as it
creates 3 drop-downs to edit a date stored as xs:date:

http://github.com/orbeon/orbeon-forms/blob/master/src/resources-packaged/xbl/orbeon/dropdown-date/dropdown-date.xbl

Alex
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Orbeon Forms - Web forms, open-source, for the Enterprise
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