CODEWITHSUNDEEP
xmlxsltxpath
Adriano Santros
Adriano Santros

Reputation: 138

XSLT-Check if child node has value

I have input xml roughly in below format.

<Root>
       <PAF>
         <Child1 xsi:nil="true" />
         <Child2 xsi:nil="true" />
         <Child3>BlahBlah</Child3>
       </PAF>
   </Root>

While transforming it into XML, I wanted to check if <PAF> has any child having value (in my case it is <Child3>) then do something. If all child have nil="true" then do something

I am bit new for XSLT scripting, So far I could get only count of child node of <PAF>. Can some one please suggest me the if-else syntax in my context? Do I need any XPATH expression here?

Thanks for your time.

Upvotes: 0

Views: 2660

Answers (2)

Amrendra Kumar
Amrendra Kumar

Reputation: 1816

You need to do below code:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"  xmlns:xsi="www.nill.com"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    exclude-result-prefixes="xs"
    version="1.0">

    <xsl:output method="xml" indent="yes"/>

    <xsl:template match="@* | node()">
        <xsl:copy>
            <xsl:apply-templates select="@* | node()"/>
        </xsl:copy>
    </xsl:template>

    <xsl:template match="PAF">
        <xsl:choose>
            <!--Checked no data inside PAF and its descendants and not other attributes other than xsi:nill then Drop.--> 
            <xsl:when test="(count(descendant-or-self::*/@*[not(name() = 'xsi:nil')]) = 0) and (not(normalize-space()))"/>
            <xsl:otherwise>
                <xsl:copy>
                    <xsl:apply-templates select="@* | node()"/>
                </xsl:copy>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:template>

</xsl:stylesheet>

Upvotes: 1

michael.hor257k
michael.hor257k

Reputation: 117165

Assuming you are in the context of PAX, you could so something like:

<xsl:choose>
    <xsl:when test="*[not(@xsi:nil='true')]">
        <!-- not all chiLd nodes are empty -->
        <!-- DO SOMETHING HERE -->
    </xsl:when>
    <xsl:otherwise>
        <!-- all child nodes are empty -->
        <!-- DO SOMETHING ELSE -->
    </xsl:otherwise>
</xsl:choose>

If there is no DO SOMETHING ELSE, then use xsl:if instead of xsl:choose.

Note that the xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" declaration must be present in both your XML and XSLT documents.

Upvotes: 0

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