Inline XSLT Call Template within Scripting Functoid logic needed

Question

In my Scripting Functoid, Config Functoid Script, Script type is Inline XSLT Call Template code is as follows.
<xsl:template name="CanadaInformation">
<xsl:param name="CanadaClientCd" />
<xsl:param name="CanadaStatCd" />
<xsl:element name="CanadaStatus">
   <xsl:choose>
      <xsl:when test="string-length($CanadaStatCd) > 0">
           <xsl:value-of select="$CanadaStatCd"/>
       </xsl:when>
       <xsl:otherwise>
           <xsl:value-of select="$CanadaClientCd"/>
       </xsl:otherwise>
    </xsl:choose>
   </xsl:element>
</xsl:template>
In this test case I think the Scripting Functoid is expecting 2 Parameters as input and in most cases the 2 input parameters will have data coming in, but in negative testing I have a case where the 2nd parameter is not passing any data (Value Mapping is
coming from a Table lookup and the the input is blank, so the table lookup is not executed).
Instead of trying to test for the length of the string of Parm 2 (which in the negative case there is no value for Parm2), I was wondering if there was a way to count the actual number of Parms being read into the XSLT. In the cases with my positive test,
the number will be 2 and in the negative case, the number will be one.
Or is there a way to confirm that there is something in the 2nd Parm.
Thank you!

Answer 1

I don't think there is a way count the number of parameter in XSLT (or even in any programing language's procedural calls). Where would execute the code/XSLT to check the count-With in your above "CanadaInformation" template?. What your looking for
is something at engine level, i.e. is count the number of parameters being read and pass the control based on the number of parameters being read/passed.
Or close option for this if you have something like overloaded functions/template. In XSLT we don't have anything like overloaded functions/templates.
If you don't pass/link two parameter, you would error as "The number of inputs to the scripting functoid does not match with the number of inputs expected by the xsl:call-template"
Your above code shall do the check for value of the parameter. Your code shall handle if "CanadaStatCd" is passed in or not. If you're considering other ways, you have some as follows:
You can have "<xsl:when test="not($CanadaStatCd)">"- Which is same as parameter not being passed. So your code can be something like:
<xsl:template name="CanadaInformation">
<xsl:param name="CanadaClientCd" />
<xsl:param name="CanadaStatCd" />
<xsl:element name="CanadaStatus">
<xsl:choose>
<xsl:when test="not($CanadaStatCd)"> <!-- parameter has not been supplied -->
<xsl:value-of select="$CanadaClientCd"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$CanadaStatCd"/>
</xsl:otherwise>
</xsl:choose>
</xsl:element>
</xsl:template>
Have a default values to your parameter and check whether the values are differernt from default values if values are passed in otherwise if the value are still default value, then no value are passed in. Something like:
<xsl:template name="CanadaInformation">
<xsl:param name="CanadaClientCd" />
<xsl:param name="CanadaStatCd" select="'SomeDefaultValue'" /> <!-- SET default -->
<xsl:element name="CanadaStatus">
<xsl:choose>
<xsl:when test="$prefix != 'default-value'">
<xsl:value-of select="$CanadaStatCd"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$CanadaClientCd"/>
</xsl:otherwise>
</xsl:choose>
</xsl:element>
</xsl:template>
Have another scripting fuctiod before you call the above XSLT-template. Do the check at this scripting function and call the template based on the validation you do at this scripting functiod.
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