Transforming XML to XSL with values on another location - html

Question

I'm trying to convert my XML into an XSL.
I succeeded in making the first part, but now I'm stuck on the second part. I'm trying to obtain a value from a key where it is defined somewhere else.
Maybe its easier to just show u :
Incoming XML file:
<?xml version="1.0" encoding="utf-16"?>
<AXFRoot>
<MAObject type="default" mdclass="PROGRAM">
<GUID dmname="">201406121715517010024191178005056B93D790000004460B00000D0F000989</GUID>
<Meta name="VRT_ESSENCE_DURATION" format="string" frate="">355280</Meta>
<Meta name="VRT_ESSENCE_AUDIO_CHANNELS" format="string" frate="">4</Meta>
<Meta name="VRT_CLIP_ID" format="string" frate="" />
<StratumEx name="VRT_CONTENT">
<Group orderidx="0" id="0" lastchanged="00010101000000">
<Segment id="0" contentid="999e584a-7192-45ff-8570-af6587e2938f" begin="0" end="8600" />
<Segment id="1" contentid="23502d29-a0b4-48c5-a8b2-596a195e2768" begin="8640" end="19760" />
<Segment id="2" contentid="b246ffb6-a56f-4e4e-8bd9-5da3b9cd7351" begin="19800" end="34840" />
<Segment id="3" contentid="1643dde7-3c5d-4675-a52e-77d00b70309b" begin="49000" end="49000" />
<Segment id="4" contentid="5ce3968f-5324-4172-90f3-bd6d22f696a7" begin="54800" end="58480" />
</Group>
</StratumEx>
<StratumEx name="VRT_ITEMS">
<Group orderidx="0" id="0" lastchanged="00010101000000">
<Segment id="0" contentid="328626e6-c794-494d-939a-39f7aa2e5a85" begin="11120" end="49200" />
<Segment id="1" contentid="1effe83f-7076-418f-b86f-cbd6ac6ba7ba" begin="81200" end="86600" />
</Group>
</StratumEx>
<StratumEx name="VRT_RESTRICTION" />
</MAObject>
<MAObject type="default" mdclass="S_VRT_CONTENT">
<GUID dmname="">999e584a-7192-45ff-8570-af6587e2938f</GUID>
<Meta name="VRT_CONTENT_TXT" format="string" frate="">Frag1</Meta>
</MAObject>
<MAObject type="default" mdclass="S_VRT_CONTENT">
<GUID dmname="">23502d29-a0b4-48c5-a8b2-596a195e2768</GUID>
<Meta name="VRT_CONTENT_TXT" format="string" frate="">Frag2</Meta>
</MAObject>
<MAObject type="default" mdclass="S_VRT_CONTENT">
<GUID dmname="">b246ffb6-a56f-4e4e-8bd9-5da3b9cd7351</GUID>
<Meta name="VRT_CONTENT_TXT" format="string" frate="">Frag3</Meta>
</MAObject>
<MAObject type="default" mdclass="S_VRT_CONTENT">
<GUID dmname="">1643dde7-3c5d-4675-a52e-77d00b70309b</GUID>
<Meta name="VRT_CONTENT_TXT" format="string" frate="">Frag4</Meta>
</MAObject>
<MAObject type="default" mdclass="S_VRT_CONTENT">
<GUID dmname="">5ce3968f-5324-4172-90f3-bd6d22f696a7</GUID>
<Meta name="VRT_CONTENT_TXT" format="string" frate="">Frag5</Meta>
</MAObject>
<MAObject type="default" mdclass="S_VRT_ITEMS">
<GUID dmname="">328626e6-c794-494d-939a-39f7aa2e5a85</GUID>
<Meta name="VRT_ITEMS_TXT" format="string" frate="">Frag6</Meta>
</MAObject>
<MAObject type="default" mdclass="S_VRT_ITEMS">
<GUID dmname="">1effe83f-7076-418f-b86f-cbd6ac6ba7ba</GUID>
<Meta name="VRT_ITEMS_TXT" format="string" frate="">Frag7</Meta>
</MAObject>
</AXFRoot>
Wanted result:
<MediaHAVEN_external_metadata version="1.0" name="VIAA">
<MDProperties>
<MEDIA_ID>201406121715517010024191178005056B93D790000004460B00000D0F000989</MEDIA_ID>
<VRT_ESSENCE_DURATION>355280</VRT_ESSENCE_DURATION>
<VRT_ESSENCE_AUDIO_CHANNELS>4</VRT_ESSENCE_AUDIO_CHANNELS>
<VRT_CLIP_ID></VRT_CLIP_ID>
</MDProperties>
<fragments>
<fragment>
<title>Frag1</title>
<original_start_z>0</original_start_z>
<original_end_z>8600</original_end_z>
</fragment>
<fragment>
<title>Frag2</title>
<original_start_z>8640</original_start_z>
<original_end_z>19760</original_end_z>
</fragment>
<fragment>
<title>Frag3</title>
<original_start_z>19800</original_start_z>
<original_end_z>34840</original_end_z>
</fragment>
<fragment>
<title>Frag4</title>
<original_start_z>49000</original_start_z>
<original_end_z>49000</original_end_z>
</fragment>
<fragment>
<title>Frag5</title>
<original_start_z>54800</original_start_z>
<original_end_z>58480</original_end_z>
</fragment>
<fragment>
<title>Frag6</title>
<original_start_z>11120</original_start_z>
<original_end_z>49200</original_end_z>
</fragment>
<fragment>
<title>Frag7</title>
<original_start_z>81200</original_start_z>
<original_end_z>86600</original_end_z>
</fragment>
</fragments>
</MediaHAVEN_external_metadata>
As you can see, those contentid's will do a lookup for the 'Frag' data. In my example: http://xsltransform.net/94hvTzt The 'Frag' data that you see right now, shouldn't belong there..
Could anyone point me in the correct direction?
Thanks!

Answer 1

Firstly, don't do this to create elements in XSLT...
<xsl:text disable-output-escaping="yes"><</xsl:text><xsl:value-of select="#name" /><xsl:text disable-output-escaping="yes">></xsl:text>
That way lies madness. If you want to create dynamically named elements, use the xsl:element command. You just need to do this....
<xsl:element name="{#name}">
<xsl:value-of select="."/>
</xsl:element>
But in answer to your question, to look up date from another location in your XML document, use an xsl:key
<xsl:key name="fragment" match="MAObject" use="GUID" />
To use this key, to look up the data, you would just do something like this (assuming you were positioned on a segment element)
<xsl:value-of select="key('fragment', #contentid)/Meta" />
Try this XSLT:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:key name="fragment" match="MAObject" use="GUID" />
<xsl:template match="/">
<MediaHAVEN_external_metadata version="1.0" name="VIAA">
<MDProperties>
<MEDIA_ID><xsl:value-of select="AXFRoot/MAObject[StratumEx]/GUID" /></MEDIA_ID>
<xsl:for-each select="AXFRoot/MAObject[StratumEx]/Meta">
<xsl:element name="{#name}">
<xsl:value-of select="."/>
</xsl:element>
</xsl:for-each>
</MDProperties>
<fragments>
<xsl:for-each select="AXFRoot/MAObject/StratumEx/Group/Segment">
<fragment>
<title><xsl:value-of select="key('fragment', #contentid)/Meta" /></title>
<original_start_z><xsl:value-of select="#begin" /></original_start_z>
<original_end_z><xsl:value-of select="#end" /></original_end_z>
</fragment>
</xsl:for-each>
</fragments>
</MediaHAVEN_external_metadata>
</xsl:template>
</xsl:stylesheet>
Or maybe this, to take a more template-based approach
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:key name="fragment" match="MAObject" use="GUID" />
<xsl:template match="/">
<MediaHAVEN_external_metadata version="1.0" name="VIAA">
<xsl:apply-templates select="AXFRoot/MAObject[StratumEx]" />
</MediaHAVEN_external_metadata>
</xsl:template>
<xsl:template match="MAObject">
<MDProperties>
<MEDIA_ID><xsl:value-of select="GUID" /></MEDIA_ID>
<xsl:apply-templates select="Meta" />
</MDProperties>
<fragments>
<xsl:apply-templates select="StratumEx/Group/Segment" />
</fragments>
</xsl:template>
<xsl:template match="Meta">
<xsl:element name="{#name}">
<xsl:value-of select="."/>
</xsl:element>
</xsl:template>
<xsl:template match="Segment">
<fragment>
<title><xsl:value-of select="key('fragment', #contentid)/Meta" /></title>
<original_start_z><xsl:value-of select="#begin" /></original_start_z>
<original_end_z><xsl:value-of select="#end" /></original_end_z>
</fragment>
</xsl:template>
</xsl:stylesheet>