I have a requirement to insert a child node in xslt when a condition is satisfied i,e when a offered course is present in Source course . Kndly refer the Source xml and My xslt in below link
https://stackoverflow.com/questions/74339222/xslt-3-0-mapping-and-validation
Added a child node which is a copy of Learning course. This child node must be present for each offerring with corresponding course data i.e when the offered Course-Number is present in Source xml
<!-- Matching course-->
<xsl:if test="exists($LearningCoursesMap(current()/Lesson[1]/Course-Number))">
<CourseDetails>
<xsl:copy-of select="$LearningCoursesMap(current()/Lesson[1]/Course-Number)"/>
</CourseDetails>
</xsl:if>
Expected output
<?xml version="1.0" encoding="UTF-8"?>
<OfferingsWithCourse xmlns:map="http://www.w3.org/2005/xpath-functions/map"
xmlns:wd="urn:com.workday/bsvc" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
<Offering>
<Lesson>
<Offering-ID>C2212001 DL 3Wks Mon 4pm-7pm EASTERN</Offering-ID>
<Course-Number>00151744</Course-Number>
<Webinar>Y</Webinar>
<Title>Launch Class Link - HDU_VILT01 - 1</Title>
<Facilitator-LDAP>AXH4006</Facilitator-LDAP>
<Webinar-URL>https://hdu.adobeconnect.com</Webinar-URL>
<Location/>
<Room>Ottawa District Training Center</Room>
<InstructorID>119417764</InstructorID>
<MappedLocation/>
<MappedRoom>LOCATION-6-3881</MappedRoom>
</Lesson>
<Lesson>
<Offering-ID>C2212001 DL 3Wks Mon 4pm-7pm EASTERN</Offering-ID>
<Course-Number>00151744</Course-Number>
<Webinar>Y</Webinar>
<Title>Launch Class Link - HDU_VILT01 - 3</Title>
<Facilitator-LDAP/>
<Webinar-URL>https://hdu.adobeconnect.com</Webinar-URL>
<Location>7070</Location>
<Room>Ottawa District Training </Room>
<InstructorID/>
<MappedLocation/>
<MappedRoom/>
<Error>Missing required field Facilitator LDAP for at least one of the lessons in the
offering. </Error>
<Error>Mapped location not found for 7070. </Error>
<Error>Mapped room not found for Ottawa District Training . </Error>
</Lesson>
<CourseDetails>
<wd:Learning_Course xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<wd:Learning_Blended_Course_Reference>
<wd:ID wd:type="WID">88388986cbbf10128d2b24f4f5c40000</wd:ID>
<wd:ID wd:type="Learning_Course_ID">00151744</wd:ID>
<wd:ID wd:type="Learning_Course">Designing Kitchens Part II</wd:ID>
</wd:Learning_Blended_Course_Reference>
<wd:Learning_Course_Data>
<wd:ID>00151744</wd:ID>
<wd:Effective_Date>2014-10-04</wd:Effective_Date>
<wd:Inactive>0</wd:Inactive>
<wd:Course_Title>Designing Kitchens Part II</wd:Course_Title>
<wd:Description>Designing Kitchens Part II</wd:Description>
<wd:Course_Number>00151744</wd:Course_Number>
<wd:Topic_Reference>
<wd:ID wd:type="WID">9d1f49654c8310154e239c7090fc0000</wd:ID>
<wd:ID wd:type="Learning_Topic">Product Knowledge - US</wd:ID>
</wd:Topic_Reference>
<wd:Language_Reference>
<wd:ID wd:type="WID">da594226446c11de98360015c5e6daf6</wd:ID>
<wd:ID wd:type="User_Language_ID">en_US</wd:ID>
</wd:Language_Reference>
<wd:Minimum_Enrollment_Capacity>0</wd:Minimum_Enrollment_Capacity>
<wd:Maximum_Enrollment_Capacity>0</wd:Maximum_Enrollment_Capacity>
<wd:Waitlist_Capacity>0</wd:Waitlist_Capacity>
<wd:Unlimited_Capacity>1</wd:Unlimited_Capacity>
<wd:Learning_Pricing_Data>
<wd:Pricing_Enabled>0</wd:Pricing_Enabled>
<wd:Price_in_Training_Credits>0</wd:Price_in_Training_Credits>
</wd:Learning_Pricing_Data>
<wd:Time_Value_Reference>
<wd:ID wd:type="WID">f31be4fd5caa10001d7c625e27014929</wd:ID>
<wd:ID wd:type="Learning_Time_Unit_ID">HOURS</wd:ID>
</wd:Time_Value_Reference>
<wd:Total_Course_Duration>18</wd:Total_Course_Duration>
<wd:Enable_Auto_Enrollment_from_Waitlist>0</wd:Enable_Auto_Enrollment_from_Waitlist>
<wd:Legacy_Course>1</wd:Legacy_Course>
<wd:Allowed_Instructor_Reference>
<wd:ID wd:type="WID">88388986cbbf10124df56ab318140000</wd:ID>
<wd:ID wd:type="Learning_Instructor_ID">100735117</wd:ID>
</wd:Allowed_Instructor_Reference>
<wd:Allowed_Instructor_Reference>
<wd:ID wd:type="WID">b7f5fd27bc071018bbed7a460ce30000</wd:ID>
<wd:ID wd:type="Learning_Instructor_ID">119417764</wd:ID>
</wd:Allowed_Instructor_Reference>
<wd:Allowed_Instructor_Reference>
<wd:ID wd:type="WID">88388986cbbf10124df57b8e81f30002</wd:ID>
<wd:ID wd:type="Learning_Instructor_ID">104034590</wd:ID>
</wd:Allowed_Instructor_Reference>
<wd:All_Locations>0</wd:All_Locations>
<wd:Exclude_from_Recommendations>1</wd:Exclude_from_Recommendations>
<wd:Exclude_from_Search_and_Browse>0</wd:Exclude_from_Search_and_Browse>
<wd:Disable_Express_Interest>1</wd:Disable_Express_Interest>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>1</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Launch Class Link - HDU_VILT01 - 1</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>2</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Launch Class Link - HDU_VILT01 - 2</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>3</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Launch Class Link - HDU_VILT01 - 3</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>4</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Launch Class Link - HDU_VILT01 - 4</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>5</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Launch Class Link - HDU_VILT01 - 5</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>6</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Launch Class Link - HDU_VILT01 - 6</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>7</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Media_Lesson_Data>
<wd:Media_Reference>
<wd:ID wd:type="WID">88388986cbbf10128d2b23247d3f0004</wd:ID>
<wd:ID wd:type="Media_ID">MEDIA-6-4195</wd:ID>
<wd:ID wd:type="Workdrive_Item_ID">MEDIA-6-4195</wd:ID>
</wd:Media_Reference>
<wd:Learning_Course_Lesson_Title>Welcome to HDU Distance
Learning</wd:Learning_Course_Lesson_Title>
<wd:Provide_Course_Grade>0</wd:Provide_Course_Grade>
</wd:Media_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>8</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>0</wd:Make_Lesson_Mandatory>
<wd:Media_Lesson_Data>
<wd:Media_Reference>
<wd:ID wd:type="WID">358e28e73d5d10109aef5b042fc20000</wd:ID>
<wd:ID wd:type="Media_ID">cninv000000000020562.zip</wd:ID>
<wd:ID wd:type="Workdrive_Item_ID">cninv000000000020562.zip</wd:ID>
</wd:Media_Reference>
<wd:Learning_Course_Lesson_Title>Course Feedback
HDUv3</wd:Learning_Course_Lesson_Title>
<wd:Provide_Course_Grade>0</wd:Provide_Course_Grade>
</wd:Media_Lesson_Data>
</wd:Course_Lesson_Data>
</wd:Learning_Course_Data>
</wd:Learning_Course>
</CourseDetails>
</Offering>
<Offering>
<Lesson>
<Offering-ID>00170024CA - 2022 Group 12 - Thurs 10AM-1PM EST</Offering-ID>
<Course-Number>00170024CA</Course-Number>
<Webinar>Y</Webinar>
<Title>Session 4</Title>
<Facilitator-LDAP>TXB786</Facilitator-LDAP>
<Webinar-URL>https://hdu-canada.adobeconnect.com/design_basics_2/</Webinar-URL>
<Location>Laval</Location>
<Room/>
<InstructorID>713400041</InstructorID>
<MappedLocation>7070</MappedLocation>
<MappedRoom/>
</Lesson>
<Lesson>
<Offering-ID>00170024CA - 2022 Group 12 - Thurs 10AM-1PM EST</Offering-ID>
<Course-Number>00170024CA</Course-Number>
<Webinar>Y</Webinar>
<Title>Session 5</Title>
<Facilitator-LDAP>ZXF99S</Facilitator-LDAP>
<Webinar-URL>https://hdu-canada.adobeconnect.com/design_basics_2/</Webinar-URL>
<Location>Laval</Location>
<Room/>
<InstructorID/>
<MappedLocation>7070</MappedLocation>
<MappedRoom/>
<Error>Instructor ID not found for Workday account ZXF99S. </Error>
</Lesson>
<CourseDetails>
<wd:Learning_Course xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<wd:Learning_Blended_Course_Reference>
<wd:ID wd:type="WID">88388986cbbf10128d2c78dc802e0001</wd:ID>
<wd:ID wd:type="Learning_Course_ID">00170024CA</wd:ID>
<wd:ID wd:type="Learning_Course">Design Basics (Designer Training 4) - Virtual
ILT</wd:ID>
</wd:Learning_Blended_Course_Reference>
<wd:Learning_Course_Data>
<wd:ID>00170024CA</wd:ID>
<wd:Effective_Date>2019-02-26</wd:Effective_Date>
<wd:Inactive>0</wd:Inactive>
<wd:Course_Title>Design Basics (Designer Training 4) - Virtual
ILT</wd:Course_Title>
<wd:Description><p>In this 5 module virtual course the designer will learn
the basics of drafting and laying out basic designs for Contractors and DIY
customers.</p></wd:Description>
<wd:Course_Number>00170024CA</wd:Course_Number>
<wd:Topic_Reference>
<wd:ID wd:type="WID">9d1f49654c8310154e4430e071ef0000</wd:ID>
<wd:ID wd:type="Learning_Topic">Customer Service and Selling Skills -
CAN</wd:ID>
</wd:Topic_Reference>
<wd:Language_Reference>
<wd:ID wd:type="WID">da5948c0446c11de98360015c5e6daf6</wd:ID>
<wd:ID wd:type="User_Language_ID">en_CA</wd:ID>
</wd:Language_Reference>
<wd:Minimum_Enrollment_Capacity>4</wd:Minimum_Enrollment_Capacity>
<wd:Maximum_Enrollment_Capacity>10</wd:Maximum_Enrollment_Capacity>
<wd:Waitlist_Capacity>0</wd:Waitlist_Capacity>
<wd:Unlimited_Capacity>0</wd:Unlimited_Capacity>
<wd:Learning_Pricing_Data>
<wd:Pricing_Enabled>0</wd:Pricing_Enabled>
<wd:Price_in_Training_Credits>0</wd:Price_in_Training_Credits>
</wd:Learning_Pricing_Data>
<wd:Time_Value_Reference>
<wd:ID wd:type="WID">f31be4fd5caa10001d7c6231be3b4927</wd:ID>
<wd:ID wd:type="Learning_Time_Unit_ID">MINUTES</wd:ID>
</wd:Time_Value_Reference>
<wd:Total_Course_Duration>900</wd:Total_Course_Duration>
<wd:Enable_Auto_Enrollment_from_Waitlist>0</wd:Enable_Auto_Enrollment_from_Waitlist>
<wd:Legacy_Course>1</wd:Legacy_Course>
<wd:Allowed_Instructor_Reference>
<wd:ID wd:type="WID">88388986cbbf10124df5cfa198ca0000</wd:ID>
<wd:ID wd:type="Learning_Instructor_ID">718700459</wd:ID>
</wd:Allowed_Instructor_Reference>
<wd:Allowed_Instructor_Reference>
<wd:ID wd:type="WID">88388986cbbf10124df5c99611170000</wd:ID>
<wd:ID wd:type="Learning_Instructor_ID">713400041</wd:ID>
</wd:Allowed_Instructor_Reference>
<wd:Allowed_Instructor_Reference>
<wd:ID wd:type="WID">88388986cbbf10124df5c72adbc60000</wd:ID>
<wd:ID wd:type="Learning_Instructor_ID">702300581</wd:ID>
</wd:Allowed_Instructor_Reference>
<wd:All_Locations>0</wd:All_Locations>
<wd:Exclude_from_Recommendations>1</wd:Exclude_from_Recommendations>
<wd:Exclude_from_Search_and_Browse>0</wd:Exclude_from_Search_and_Browse>
<wd:Disable_Express_Interest>1</wd:Disable_Express_Interest>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>1</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Session 1</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>2</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Session 2</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>3</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Session 3</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>4</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Session 4</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>5</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Instructor_Led_Webinar_Lesson_Data>
<wd:Title>Session 5</wd:Title>
<wd:Webinar_Lesson_Unit_Track_Attendance>1</wd:Webinar_Lesson_Unit_Track_Attendance>
<wd:Webinar_Lesson_Unit_Track_Grades>0</wd:Webinar_Lesson_Unit_Track_Grades>
</wd:Instructor_Led_Webinar_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>6</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>1</wd:Make_Lesson_Mandatory>
<wd:Media_Lesson_Data>
<wd:Media_Reference>
<wd:ID wd:type="WID">88388986cbbf10128d2c770c4c2b0003</wd:ID>
<wd:ID wd:type="Media_ID">MEDIA-6-4222</wd:ID>
<wd:ID wd:type="Workdrive_Item_ID">MEDIA-6-4222</wd:ID>
</wd:Media_Reference>
<wd:Learning_Course_Lesson_Title>Log in Instructions (Adobe Connect -
Designer 4_DesignBasics) (updated May
2022)</wd:Learning_Course_Lesson_Title>
<wd:Provide_Course_Grade>0</wd:Provide_Course_Grade>
</wd:Media_Lesson_Data>
</wd:Course_Lesson_Data>
<wd:Course_Lesson_Data>
<wd:Lesson_Order>7</wd:Lesson_Order>
<wd:Make_Lesson_Mandatory>0</wd:Make_Lesson_Mandatory>
<wd:Media_Lesson_Data>
<wd:Media_Reference>
<wd:ID wd:type="WID">358e28e73d5d1010910342e9c79a0000</wd:ID>
<wd:ID wd:type="Media_ID">cninv000000000019226.zip</wd:ID>
<wd:ID wd:type="Workdrive_Item_ID">cninv000000000019226.zip</wd:ID>
</wd:Media_Reference>
<wd:Learning_Course_Lesson_Title>Course Evaluation - vILT
(L1)</wd:Learning_Course_Lesson_Title>
<wd:Provide_Course_Grade>0</wd:Provide_Course_Grade>
</wd:Media_Lesson_Data>
</wd:Course_Lesson_Data>
</wd:Learning_Course_Data>
</wd:Learning_Course>
</CourseDetails>
</Offering>
</OfferingsWithCourse>
CodePudding user response：
<?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"
xmlns:map="http://www.w3.org/2005/xpath-functions/map"
xmlns:wd="urn:com.workday/bsvc"
exclude-result-prefixes="#all"
expand-text="yes"
version="3.0">
<xsl:output method="xml" indent="yes"/>
<xsl:accumulator name="location-internal-value" as="xs:string?" initial-value="()" streamable="yes">
<xsl:accumulator-rule match="Maps/Locations/Location" select="()"/>
<xsl:accumulator-rule match="Maps/Locations/Location/InternalValue/text()" select="."/>
</xsl:accumulator>
<xsl:accumulator name="location-map" as="map(xs:string, xs:string)" initial-value="map{}" streamable="yes">
<xsl:accumulator-rule match="Maps/Locations" select="map{}"/>
<xsl:accumulator-rule match="Maps/Locations/Location/ExternalValue/text()"
select="map:put($value, string(), accumulator-before('location-internal-value'))"/>
</xsl:accumulator>
<xsl:accumulator name="Room-internal-value" as="xs:string?" initial-value="()" streamable="yes">
<xsl:accumulator-rule match="Maps/Rooms/Room" select="()"/>
<xsl:accumulator-rule match="Maps/Rooms/Room/InternalValue/text()" select="."/>
</xsl:accumulator>
<xsl:accumulator name="Room-map" as="map(xs:string, xs:string)" initial-value="map{}" streamable="yes">
<xsl:accumulator-rule match="Maps/Rooms" select="map{}"/>
<xsl:accumulator-rule match="Maps/Rooms/Room/ExternalValue/text()"
select="map:put($value, string(), accumulator-before('Room-internal-value'))"/>
</xsl:accumulator>
<xsl:accumulator name="Instructor-internal-value" as="xs:string?" initial-value="()" streamable="yes">
<xsl:accumulator-rule match="Instructors/Instructor" select="()"/>
<xsl:accumulator-rule match="Instructors/Instructor/InstructorID/text()" select="."/>
</xsl:accumulator>
<xsl:accumulator name="Instructor-map" as="map(xs:string, xs:string)" initial-value="map{}" streamable="yes">
<xsl:accumulator-rule match="Instructors" select="map{}"/>
<xsl:accumulator-rule match="Instructors/Instructor/WorkdayUserName/text()"
select="map:put($value, string(), accumulator-before('Instructor-internal-value'))"/>
</xsl:accumulator>
<xsl:accumulator name="learning-course-id" as="xs:string?" initial-value="()" streamable="yes">
<xsl:accumulator-rule match="AllCourses/wd:Learning_Course/wd:Learning_Course_Data/wd:ID/text()" select="string()"/>
</xsl:accumulator>
<xsl:accumulator name="lesson-mandatory" as="xs:boolean?" initial-value="()" streamable="yes">
<xsl:accumulator-rule match="AllCourses/wd:Learning_Course/wd:Learning_Course_Data/wd:Course_Lesson_Data" select="false()"/>
<xsl:accumulator-rule match="AllCourses/wd:Learning_Course/wd:Learning_Course_Data/wd:Course_Lesson_Data/wd:Make_Lesson_Mandatory/text()" select=". = 1"/>
</xsl:accumulator>
<xsl:accumulator name="webinars" as="map(xs:string, xs:string*)" initial-value="map{}" streamable="yes">
<xsl:accumulator-rule match="AllCourses/wd:Learning_Course/wd:Learning_Course_Data/wd:Course_Lesson_Data/wd:Instructor_Led_Webinar_Lesson_Data[accumulator-before('lesson-mandatory')]/wd:Title/text()"
select="let $id := accumulator-before('learning-course-id')
return
if (map:contains($value, $id))
then map:put($value, $id, ($value($id), string()))
else map:put($value, $id, string())"/>
</xsl:accumulator>
<xsl:accumulator name="classroom-lessons" as="map(xs:string, xs:string*)" initial-value="map{}" streamable="yes">
<xsl:accumulator-rule match="AllCourses/wd:Learning_Course/wd:Learning_Course_Data/wd:Course_Lesson_Data/wd:Instructor_Led_Lesson_Data[accumulator-before('lesson-mandatory')]/wd:Title/text()"
select="let $id := accumulator-before('learning-course-id')
return
if (map:contains($value, $id))
then map:put($value, $id, ($value($id), string()))
else map:put($value, $id, string())"/>
</xsl:accumulator>
<xsl:accumulator name="offered-lesson-id" as="xs:string?" initial-value="()" streamable="yes">
<xsl:accumulator-rule match="Offerings/Offering/Lesson/Course-Number/text()" select="string()"/>
</xsl:accumulator>
<xsl:accumulator name="offered-lessons" as="map(xs:string, xs:string*)" initial-value="map{}" streamable="yes">
<xsl:accumulator-rule match="Offerings/Offering" select="map{}"/>
<xsl:accumulator-rule match="Offerings/Offering/Lesson/Title/text()"
select="let $id := accumulator-before('offered-lesson-id')
return
if (map:contains($value, $id))
then map:put($value, $id, ($value($id), string()))
else map:put($value, $id, string())"/>
</xsl:accumulator>
<xsl:accumulator name="match-courses" as="map(xs:string, xs:string*)" initial-value="map{}" streamable="yes">
<xsl:accumulator-rule match="AllCourses/wd:Learning_Course/wd:Learning_Course_Data/wd:ID/text()"
select="let $id := accumulator-before('offered-lesson-id')
return
if (map:contains($value, $id))
then map:put($value, $id, ($value($id), string()))
else map:put($value, $id, string())"/>
</xsl:accumulator>
<xsl:mode on-no-match="shallow-copy" use-accumulators="#all" streamable="yes"/>
<xsl:output method="xml" indent="yes"/>
<xsl:template match="/FileAndCourses" expand-text="yes">
<OfferingsWithCourse>
<xsl:apply-templates select="Offerings/Offering"/>
</OfferingsWithCourse>
</xsl:template>
<xsl:template match="Offering">
<xsl:copy>
<xsl:apply-templates/>
<xsl:variable name="webinars" select="accumulator-after('webinars')"/>
<xsl:variable name="offered-lessons" select="accumulator-after('offered-lessons')"/>
<xsl:for-each select="map:keys(accumulator-after('webinars'))[. = map:keys($offered-lessons)]">
<xsl:variable name="webinar-id" select="."/>
<xsl:for-each select="$webinars(.)[not(. = $offered-lessons($webinar-id))]">
<Error>No matching required lesson found for title {.} in Course num {$webinar-id}</Error>
</xsl:for-each>
</xsl:for-each>
<!-- Trying to insert Child node in Offering-->
<xsl:variable name="match-courses" select="accumulator-after('match-courses')"/>
<xsl:for-each select="map:keys(accumulator-after('match-courses'))">
<CourseDetails>
<xsl:copy-of select="Lesson[1]/Course-Number"/>
</CourseDetails>
</xsl:for-each>
</xsl:copy>
</xsl:template>
<xsl:template match="Lesson">
<xsl:apply-templates select="copy-of()" mode="grounded"/>
</xsl:template>
<xsl:template match="Offering/Lesson">
<xsl:apply-templates select="copy-of()" mode="grounded"/>
</xsl:template>
<xsl:mode name="grounded" on-no-match="shallow-copy"/>
<!-- Validation Errors for Lessons -->
<xsl:template mode="grounded" match="Lesson">
<xsl:copy>
<xsl:apply-templates mode="#current"/>
<xsl:if test="Course-Number = ''">
<Error>
<xsl:text>Missing required field Course Number. </xsl:text>
</Error>
</xsl:if>
<xsl:if test="Facilitator-LDAP = ''">
<Error>
<xsl:text>Missing required field Facilitator LDAP for at least one of the lessons in the offering. </xsl:text>
</Error>
</xsl:if>
<xsl:if test="Offering-ID = ''">
<Error>
<xsl:text>Missing required field Offering ID. </xsl:text>
</Error>
</xsl:if>
<xsl:if test="Start-Date = ''">
<Error>
<xsl:text>Missing required field Start Date for at least one of the lessons in the offering. </xsl:text>
</Error>
</xsl:if>
<xsl:if test="Start-Time = ''">
<Error>
<xsl:text>Missing required field Start Time for at least one of the lessons in the offering. </xsl:text>
</Error>
</xsl:if>
<xsl:if test="End-Time = ''">
<Error>
<xsl:text>Missing required field End Time for at least one of the lessons in the offering. </xsl:text>
</Error>
</xsl:if>
<xsl:if test="Title = ''">
<Error>
<xsl:text>Missing required field Title for at least one of the lessons in the offering. </xsl:text>
</Error>
</xsl:if>
<xsl:if test="Webinar = 'Y' and Webinar-URL = ''">
<Error>
<xsl:text>Missing required field Webinar URL for webinar type lesson. </xsl:text>
</Error>
</xsl:if>
<xsl:if test="Webinar != 'Y' and Location = ''">
<Error>
<xsl:text>Missing required field location for classroom type lesson. </xsl:text>
</Error>
</xsl:if>
<!-- Validation errors for Offering: validating same value for min seat, max seat, and language -->
<xsl:if test="Lesson/Min-Seats != Lesson/Min-Seats">
<Error>
<xsl:text>Different values found for field Min Seats among the lessons. Min Seat should be the same for all the lessons within the same offering.</xsl:text>
</Error>
</xsl:if>
<xsl:if test="Lesson/Max-seats != Lesson/Max-seats">
<Error>
<xsl:text>Different values found for field Max Seats among the lessons. Max Seat should be the same for all the lessons within the same offering.</xsl:text>
</Error>
</xsl:if>
<xsl:if test="Lesson/Language != Lesson/Language">
<Error>
<xsl:text>Different values found for field Language among the lessons. Language should be the same for all the lessons within the same offering.</xsl:text>
</Error>
</xsl:if>
</xsl:copy>
</xsl:template>
<!-- Mapped location-->
<xsl:template mode="grounded" match="Lesson/Location[normalize-space() and not(map:contains(accumulator-before('location-map'), string()))]">
<xsl:next-match/>
<Error>Mapped location not found for {.}</Error>
</xsl:template>
<xsl:template mode="grounded" match="Lesson/Location[normalize-space() and map:contains(accumulator-before('location-map'), string())]">
<xsl:next-match/>
<MappedLocation>{accumulator-before('location-map')(.)}</MappedLocation>
</xsl:template>
<!-- Mapped Room-->
<xsl:template mode="grounded" match="Lesson/Room[normalize-space() and not(map:contains(accumulator-before('Room-map'), string()))]">
<xsl:next-match/>
<Error>Mapped Room not found for {.}</Error>
</xsl:template>
<xsl:template mode="grounded" match="Lesson/Room[normalize-space() and map:contains(accumulator-before('Room-map'), string())]">
<xsl:next-match/>
<MappedRoom>{accumulator-before('Room-map')(.)}</MappedRoom>
</xsl:template>
<!-- Mapped Instructor -->
<xsl:template mode="grounded" match="Lesson/Facilitator-LDAP[normalize-space() and not(map:contains(accumulator-before('Instructor-map'), string()))]">
<xsl:next-match/>
<Error>Mapped Instructor not found for {.}</Error>
</xsl:template>
<xsl:template mode="grounded" match="Lesson/Facilitator-LDAP[normalize-space() and map:contains(accumulator-before('Instructor-map'), string())]">
<xsl:next-match/>
<MappedInstructor>{accumulator-before('Instructor-map')(.)}</MappedInstructor>
</xsl:template>
<!-- No intructor-led webinar lesson found in course with title:-->
<xsl:template mode="grounded" match="Lesson[Webinar = 'Y'][let $webinars := accumulator-before('webinars') return if (map:contains($webinars, Course-Number)) then not(Title = $webinars(Course-Number)) else false()]">
<xsl:copy>
<xsl:copy-of select="*"/>
<Error>
<xsl:text>No intructor-led webinar lesson found in course with title: </xsl:text>
<xsl:value-of select="Title"/>
<xsl:text>. </xsl:text>
</Error>
</xsl:copy>
</xsl:template>
<!-- No intructor-led classrom lesson found in course with title:-->
<xsl:template mode="grounded" match="Lesson[Webinar = 'N'][let $lessons := accumulator-before('classroom-lessons') return if (map:contains($lessons, Course-Number)) then not(Title = $lessons(Course-Number)) else false()]">
<xsl:copy>
<xsl:copy-of select="*"/>
<Error>
<xsl:text>No intructor-led classrom lesson found in course with title: </xsl:text>
<xsl:value-of select="Title"/>
<xsl:text>. </xsl:text>
</Error>
</xsl:copy>
</xsl:template>
<!-- Unable to find active course-->
<xsl:template mode="grounded" match="Lesson[Webinar = 'Y'][not(map:contains(accumulator-before('webinars'), Course-Number))] | Lesson[Webinar = 'N'][not(map:contains(accumulator-before('classroom-lessons'), Course-Number))]">
<xsl:copy>
<xsl:copy-of select="*"/>
<Error>
<xsl:text>Unable to find active course </xsl:text>
<xsl:value-of select="Course-Number"/>
<xsl:text> in Workday. </xsl:text>
</Error>
</xsl:copy>
</xsl:template>
<xsl:template mode="grounded" match="Lesson[Webinar = 'Y'][not(map:contains(accumulator-before('webinars'), Course-Number))] | Lesson[Webinar = 'N'][not(map:contains(accumulator-before('classroom-lessons'), Course-Number))]">
<xsl:copy>
<xsl:copy-of select="*"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
CodePudding user response：
A capturing accumulator for your data would be (with xmlns:saxon="http://saxon.sf.net/" declared on the stylesheet)
<xsl:accumulator name="learning-courses" as="element(wd:Learning_Course)*" initial-value="()" streamable="yes">
<xsl:accumulator-rule saxon:capture="yes" match="AllCourses/wd:Learning_Course" phase="end" select="$value, ."/>
</xsl:accumulator>
then you could change the template matching Offering to
<xsl:template match="Offering">
<xsl:copy>
<xsl:apply-templates/>
<xsl:variable name="webinars" select="accumulator-after('webinars')"/>
<xsl:variable name="offered-lessons" select="accumulator-after('offered-lessons')"/>
<xsl:for-each select="map:keys(accumulator-after('webinars'))[. = map:keys($offered-lessons)]">
<xsl:variable name="webinar-id" select="."/>
<xsl:for-each select="$webinars(.)[not(. = $offered-lessons($webinar-id))]">
<Error>No matching required lesson found for title {.} in Course num {$webinar-id}</Error>
</xsl:for-each>
</xsl:for-each>
<xsl:where-populated>
<CourseDetails>
<xsl:copy-of select="accumulator-after('learning-courses')[wd:Learning_Course_Data/wd:ID = map:keys($offered-lessons)]"/>
</CourseDetails>
</xsl:where-populated>
</xsl:copy>
</xsl:template>