xslt : xml transformation, need soql query as output - xslt-1.0

Question

Thanks for the solution.
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns="urn:partner.soap.sforce.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Header>
<LimitInfoHeader>
<limitInfo>
<current>18029</current>
<limit>5000000</limit>
<type>API REQUESTS</type>
</limitInfo>
</LimitInfoHeader>
</soapenv:Header>
<soapenv:Body>
<upsertResponse>
<result>
<created>false</created>
<id xsi:nil="true"/>
<success>false</success>
</result>
<result>
<created>false</created>
<id xsi:nil="true"/>
<success>false</success>
</result>
<result>
<created>false</created>
<id xsi:nil="true"/>
<success>false</success>
</result>
</upsertResponse>
</soapenv:Body>
</soapenv:Envelope>
for the above xml as input to xslt, the output is below one
<?xml version="1.0" encoding="utf-8"?><soql>select (select Id from contacts where AccountId in (SELECT AccountId from Opportunity where id in ())), (select Id from opportunities where id in()) from account where id in (SELECT AccountId from Opportunity where id in())</soql>
if all the success tag values are false in the given input xml, the <soql> tag should not be generated. i mean output should be empty
eventually what i need is valid SOQL, so that i can query sales force, for the above given xml input the output generated is not a valid SOQL. henceforth i cannot query sales force.
so where the changes in xslt needs to be done, need your help
Thanks

Answer 1

Why can't you do simply:
XSLT 1.0
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ns="urn:partner.soap.sforce.com"
exclude-result-prefixes="ns">
<xsl:variable name="ids">
<xsl:for-each select="//ns:result[ns:success='true']">
<xsl:text>'</xsl:text>
<xsl:value-of select="ns:id" />
<xsl:text>'</xsl:text>
<xsl:if test="position()!=last()">
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:for-each>
</xsl:variable>
<xsl:template match="/">
<soql>
<xsl:text>select (select Id from contacts where AccountId in (SELECT AccountId from Opportunity where id in (</xsl:text>
<xsl:value-of select="$ids"/>
<xsl:text>))), (select Id from opportunities where id in(</xsl:text>
<xsl:value-of select="$ids"/>
<xsl:text>)) from account where id in (SELECT AccountId from Opportunity where id in(</xsl:text>
<xsl:value-of select="$ids"/>
<xsl:text>))</xsl:text>
</soql>
</xsl:template>
</xsl:stylesheet>