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Lisa HarrisSubject: XSL Test for lack of XML element
Author: Lisa Harris
Date: 10 Dec 2012 08:34 AM
I've got an xsl file that runs business rules against xml data. One of them doesn't work, and I found from deconstructing it and checking the xml that the one field, when blank, does not appear in the xml (this being the one below where I'm testing for a blank value).

xsl:when test="($ScoreDecision = 1 or $ScoreDecision = 2) and //res:NewFields/res:UD_SCORECARD = 7 and //CO/SCX_DB_CURRMONTHPAYDEX = '' and ($CreditAmount > 9999.99 or //CO/UD_MONTHS_IN_BUSINESS < 60)"

How can I rewrite this when test to check for the lack of element SCX_DB_CURRMONTHPAYDEX -- so if it doesn't appear at all in the xml that this when test will return a positive result?

Thanks for any help -- kinda new at this and I'm stumped.

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Ivan PedruzziSubject: XSL Test for lack of XML element
Author: Ivan Pedruzzi
Date: 10 Dec 2012 11:12 AM

Hi Lisa,

Which Stylus Studio version and edition are you running?

Thanks!
Ivan Pedruzzi
Stylus Studio Team

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Lisa HarrisSubject: XSL Test for lack of XML element
Author: Lisa Harris
Date: 10 Dec 2012 11:14 AM
X14 Release 2 build 1893g

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Ivan PedruzziSubject: XSL Test for lack of XML element
Author: Ivan Pedruzzi
Date: 10 Dec 2012 11:52 AM

The following expression returns true if the element does not exist
not(//CO/SCX_DB_CURRMONTHPAYDEX )

The expressions you have posted look suspicious. A path starting with // means to look in the entire document for CO/SCX_DB_CURRMONTHPAYDEX which could be very expensive to evaluate.

A more selective path like CO/SCX_DB_CURRMONTHPAYDEX would held a better performance, assuming that the context node is the direct ancestor of the node you are looking for.

Hope this helps
Ivan Pedruzzi
Stylus Studio Team

   
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