'Group by key in xslt 3.0
I am trying to group by an attribute . Example input:
<?xml version='1.0' encoding='UTF-8'?>
<ns1:map xmlns:ns1="http://www.w3.org/2005/xpath-functions">
<ns1:string key="omschrijving">Inschrijfstaat Raamovereenkomst</ns1:string>
<ns1:map key="concepten">
<ns1:map key="http://url/def/Document">
<ns1:string key="iri">http://url/def/Document</ns1:string>
<ns1:string key="naam">Create Document</ns1:string>
</ns1:map>
</ns1:map>
<ns1:map key="collecties">
<ns1:map key="4a9ff131-a507-4979-817a-09ae4365386a">
<ns1:string key="uuid">4a9ff131-a507-4979-817a-09ae4365386a</ns1:string>
<ns1:string key="naam">meeden</ns1:string>
</ns1:map>
</ns1:map>
<ns1:map key="eigenschapConcepten">
<ns1:map key="http://url/def/4c20ec8e-8e86-30ca-89a0-96e8ecad447d">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">tekst</ns1:string>
<ns1:string key="waarde">112</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="http://url/def/7d94197f-78b5-3f8f-9068-a99235fda655">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">tekst</ns1:string>
<ns1:string key="waarde">nld</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="http://url/def/2c0bea42-27b1-35aa-aa93-c91d22a2a78e">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">tekst</ns1:string>
<ns1:string key="waarde">Inschrijfstaat Raamovereenkomst</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="https://url/43514c35-3699-4cf2-abaa-ac2906c41e7f">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">tekst</ns1:string>
<ns1:string key="waarde">G014485-BEG-2139</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="http://url/def/hasVersion">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">entiteit</ns1:string>
<ns1:string key="entiteitUuid">cb020428-ec25-44f7-8add-7e334eb2a3c0</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="https://w3id.org/def/basicsemantics-owl#describes">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">entiteit</ns1:string>
<ns1:string key="entiteitUuid">004ed20d-1292-4210-a541-755754497fbe</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="https://w3id.org/def/basicsemantics-owl#describes">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">entiteit</ns1:string>
<ns1:string key="entiteitUuid">004ed20d-1292-4210-a541-755754497fba</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
</ns1:map>
</ns1:map>
Expected output:
<?xml version='1.0' encoding='UTF-8'?>
<ns1:map xmlns:ns1="http://www.w3.org/2005/xpath-functions">
<ns1:string key="omschrijving">Inschrijfstaat Raamovereenkomst</ns1:string>
<ns1:map key="concepten">
<ns1:map key="http://url/def/Document">
<ns1:string key="iri">http://data.tennet.eu/def/Document</ns1:string>
<ns1:string key="naam">Create Document</ns1:string>
</ns1:map>
</ns1:map>
<ns1:map key="collecties">
<ns1:map key="4a9ff131-a507-4979-817a-09ae4365386a">
<ns1:string key="uuid">4a9ff131-a507-4979-817a-09ae4365386a</ns1:string>
<ns1:string key="naam">meeden</ns1:string>
</ns1:map>
</ns1:map>
<ns1:map key="eigenschapConcepten">
<ns1:map key="http://url/def/4c20ec8e-8e86-30ca-89a0-96e8ecad447d">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">tekst</ns1:string>
<ns1:string key="waarde">112</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="http://url/def/7d94197f-78b5-3f8f-9068-a99235fda655">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">tekst</ns1:string>
<ns1:string key="waarde">nld</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="http://url/def/2c0bea42-27b1-35aa-aa93-c91d22a2a78e">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">tekst</ns1:string>
<ns1:string key="waarde">Inschrijfstaat Raamovereenkomst</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="https://url/43514c35-3699-4cf2-abaa-ac2906c41e7f">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">tekst</ns1:string>
<ns1:string key="waarde">G014485-BEG-2139</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="http://url/def/hasVersion">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">entiteit</ns1:string>
<ns1:string key="entiteitUuid">cb020428-ec25-44f7-8add-7e334eb2a3c0</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
<ns1:map key="https://w3id.org/def/basicsemantics-owl#describes">
<ns1:array key="eigenschappen">
<ns1:map>
<ns1:string key="vullingType">entiteit</ns1:string>
<ns1:string key="entiteitUuid">004ed20d-1292-4210-a541-755754497fbe</ns1:string>
</ns1:map>
<ns1:map>
<ns1:string key="vullingType">entiteit</ns1:string>
<ns1:string key="entiteitUuid">004ed20d-1292-4210-a541-755754497fba</ns1:string>
</ns1:map>
</ns1:array>
</ns1:map>
</ns1:map>
</ns1:map>
See the key "https://w3id.org/def/basicsemantics-owl#describes" is the one i am trying to group, but it can also be another duplicate key. So i can not pinpoint on a hardcoded value for the key.
I have tried a lot off which i found here and other websites but can't seem to make it work dynamically.
Thx for any help in advance.
Solution 1:[1]
If the structure is known to contain only those ns1:array children as part of an ns1:map then perhaps
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="3.0"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:fn="http://www.w3.org/2005/xpath-functions"
exclude-result-prefixes="#all">
<xsl:output method="xml" indent="yes"/>
<xsl:template match="fn:map[fn:map/fn:array[@key = 'eigenschappen']]">
<xsl:copy>
<xsl:apply-templates select="@*"/>
<xsl:for-each-group select="fn:map" group-by="@key">
<xsl:copy>
<xsl:apply-templates select="@*"/>
<xsl:copy select="fn:array[@key = 'eigenschappen']">
<xsl:apply-templates select="@*, current-group()/fn:array/*"/>
</xsl:copy>
</xsl:copy>
</xsl:for-each-group>
</xsl:copy>
</xsl:template>
<xsl:mode on-no-match="shallow-copy"/>
</xsl:stylesheet>
suffices.
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Martin Honnen |