XSLT Help - Compare preceding node and counter increment if the date is different - xslt

Question

I have xml where each worker can have multiple events. The events need not be grouped but if there are two events with same Effective_Date, I'd like to increment the sequence. Below is sample xml:
XML:
<?xml version="1.0" encoding="UTF-8"?>
<wd:Report_Data xmlns:wd="urn:com.workday.report/ERP-HCM-CR_ASSIGNMENTS_REPORT_V4">
<wd:Report_Entry>
<wd:Worker_group>
<wd:UNIQUE_IDENTIFIER>2168636</wd:UNIQUE_IDENTIFIER>
</wd:Worker_group>
<wd:Caregiver_Events_group>
<wd:ASSIGNMENT_NUMBER>2168636-03012008E01</wd:ASSIGNMENT_NUMBER>
<wd:EFFECTIVE_DATE>2008-03-01-08:00</wd:EFFECTIVE_DATE>
<wd:EFFECTIVE_SEQUENCE>1</wd:EFFECTIVE_SEQUENCE>
</wd:Caregiver_Events_group>
<wd:Caregiver_Events_group>
<wd:ASSIGNMENT_NUMBER>2168636-03012008E01</wd:ASSIGNMENT_NUMBER>
<wd:EFFECTIVE_DATE>2019-12-01-08:00</wd:EFFECTIVE_DATE>
<wd:EFFECTIVE_SEQUENCE>1</wd:EFFECTIVE_SEQUENCE>
</wd:Caregiver_Events_group>
<wd:Caregiver_Events_group>
<wd:ASSIGNMENT_NUMBER>2168636-03012008E01</wd:ASSIGNMENT_NUMBER>
<wd:EFFECTIVE_DATE>2019-12-01-08:00</wd:EFFECTIVE_DATE>
<wd:EFFECTIVE_SEQUENCE>1</wd:EFFECTIVE_SEQUENCE>
</wd:Caregiver_Events_group>
</wd:Report_Entry>
<wd:Report_Entry>
<wd:Worker_group>
<wd:UNIQUE_IDENTIFIER>2188946</wd:UNIQUE_IDENTIFIER>
</wd:Worker_group>
<wd:Caregiver_Events_group>
<wd:ASSIGNMENT_NUMBER>2188946-04272015E01</wd:ASSIGNMENT_NUMBER>
<wd:EFFECTIVE_DATE>2015-04-27-07:00</wd:EFFECTIVE_DATE>
<wd:EFFECTIVE_SEQUENCE>1</wd:EFFECTIVE_SEQUENCE>
</wd:Caregiver_Events_group>
<wd:Caregiver_Events_group>
<wd:COUNTRY_CODE>US</wd:COUNTRY_CODE>
<wd:ASSIGNMENT_NUMBER>2188946-04272015E01</wd:ASSIGNMENT_NUMBER>
<wd:EFFECTIVE_DATE>2019-12-01-08:00</wd:EFFECTIVE_DATE>
<wd:EFFECTIVE_SEQUENCE>1</wd:EFFECTIVE_SEQUENCE>
</wd:Caregiver_Events_group>
<wd:Caregiver_Events_group>
<wd:ASSIGNMENT_NUMBER>2188946-04272015E01</wd:ASSIGNMENT_NUMBER>
<wd:EFFECTIVE_DATE>2019-12-01-08:00</wd:EFFECTIVE_DATE>
<wd:EFFECTIVE_SEQUENCE>1</wd:EFFECTIVE_SEQUENCE>
</wd:Caregiver_Events_group>
</wd:Report_Entry>
</wd:Report_Data>
Portion of xslt:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema" exclude-result-prefixes="xs"
xmlns:wd="urn:com.workday.report/ERP-HCM-CR_ASSIGNMENTS_REPORT_V4" version="2.0">
<xsl:output method="text"/>
<xsl:variable name="linefeed" select="'
'"/>
<xsl:variable name="pipe" select="'|'"/>
<xsl:variable name="EffectiveStartDate" select="'01-01-1951'"/>
<xsl:variable name="EffectiveEndDate" select="'4712-12-31'"/>
<xsl:variable name="i" select="position()"/>
<xsl:param name="quote">"</xsl:param>
<xsl:template match="/">
<!-- File Header Record -->
<xsl:call-template name="Write-Header-Record0"/>
<!-- File Detail Layout -->
<xsl:for-each select="wd:Report_Data/wd:Report_Entry">
<xsl:for-each select="wd:Caregiver_Events_group">
<xsl:call-template name="Write-Detail-Record"/>
</xsl:for-each>
</xsl:for-each>
</xsl:template>
<xsl:template name="Write-Header-Record0">
<xsl:text>Unique ID|Assignment Number|Effective Date|Sequence</xsl:text>
<xsl:value-of select="$linefeed"/>
</xsl:template>
<xsl:template name="Write-Detail-Record">
<xsl:value-of select="../wd:Worker_group/wd:UNIQUE_IDENTIFIER"/>
<xsl:value-of select="$pipe"/>
<xsl:value-of select="wd:ASSIGNMENT_NUMBER"/>
<xsl:value-of select="$pipe"/>
<xsl:value-of select="format-date(wd:EFFECTIVE_DATE, '[Y0001]-[M01]-[D01]')"/>
<xsl:value-of select="$pipe"/>
<xsl:choose>
<xsl:when
test="(preceding-sibling::node()[wd:EFFECTIVE_DATE = current()/wd:EFFECTIVE_DATE])">
<xsl:value-of
select="preceding-sibling::node()/wd:EFFECTIVE_SEQUENCE + current()/wd:EFFECTIVE_SEQUENCE"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="wd:EFFECTIVE_SEQUENCE"/>
</xsl:otherwise>
</xsl:choose>
<xsl:value-of select="$linefeed"/>
</xsl:template>
</xsl:stylesheet>
Can someone please assist. I know the value-of select cannot add two elements. If a worker (report_entry) has three events (caregiver_events_group) with same effective date, I would expect to see sequence of 1, 2, 3 on three rows.
Expecting output:
2168636|2168636-03012008E01|2008-03-01-08:00|1
2168636|2168636-03012008E01|2019-12-01-08:00|1
2168636|2168636-03012008E01|2019-12-01-08:00|2
2188946|2188946-04272015E01|2015-04-27-07:00|1
2188946|2188946-04272015E01|2019-12-01-08:00|1
2188946|2188946-04272015E01|2019-12-01-08:00|2

Answer 1

Would something like this work for you:
XSLT 2.0
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xpath-default-namespace="urn:com.workday.report/ERP-HCM-CR_ASSIGNMENTS_REPORT_V4">
<xsl:output method="text" encoding="UTF-8"/>
<xsl:template match="/Report_Data">
<!-- header -->
<xsl:text>Unique ID|Assignment Number|Effective Date|Sequence
</xsl:text>
<!-- data -->
<xsl:for-each select="Report_Entry">
<xsl:variable name="id" select="Worker_group/UNIQUE_IDENTIFIER" />
<xsl:for-each-group select="Caregiver_Events_group" group-by="EFFECTIVE_DATE">
<xsl:variable name="date" select="format-date(EFFECTIVE_DATE, '[Y0001]-[M01]-[D01]')"/>
<xsl:for-each select="current-group()">
<xsl:value-of select="$id"/>
<xsl:text>|</xsl:text>
<xsl:value-of select="ASSIGNMENT_NUMBER"/>
<xsl:text>|</xsl:text>
<xsl:value-of select="$date"/>
<xsl:text>|</xsl:text>
<xsl:value-of select="position()"/>
<xsl:text>
</xsl:text>
</xsl:for-each>
</xsl:for-each-group>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>