xsl key match to return specific value - xslt-1.0

input:
<DS>
<TL>
<msg>
<output_getquerydata>
<queries>
<query name="q1">
<parameters>
<parameter name="id">906OREA</parameter>
</parameters>
<results>
<record>
<column name="actionState">sdss</column>
</record>
</results>
</query>
<query name="q2">
<parameters>
<parameter name="resCode">CTL</parameter>
<parameter name="prodCode">89CMID</parameter>
<parameter name="pos">1,2,4,3</parameter>
</parameters>
<results>
<record id="1">
<column name="position">1</column>
<column name="ExternalProductId"/>
</record>
<record id="9">
<column name="position"/>
<column name="ExternalProductId">316442</column>
</record>
</results>
</query>
<query name="q2">
<parameters>
<parameter name="resCode">CTL</parameter>
<parameter name="prodCode">91VPRM</parameter>
<parameter name="pos">1,2,4,3</parameter>
</parameters>
<results>
<record id="1">
<column name="position"/>
<column name="ExternalProductId">316495</column>
</record>
</results>
</query>
</queries>
</output_getquerydata>
</msg>
<TL>
<ArticleNr>89CMID</ArticleNr>
</TL>
<TL>
<ArticleNr>89CMID</ArticleNr>
</TL>
<TL>
<ArticleNr>89CMID</ArticleNr>
</TL>
<TL>
<ArticleNr>91VPRM</ArticleNr>
</TL>
</TL>
</DS>
XSL:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:key name="Article" match="tLoading" use="./ArticleNr"/>
<xsl:key name="prod" match="query[#name='q2']/results/record" use="./column[#name='ExternalProductId'][node()]"/>
<xsl:template match="DS">
<msglist>
<xsl:for-each select="./TL[./msg/output_getquerydata/queries/query/results/record/column[#name='actionState'] !='finished'] ">
<xsl:variable name="distinctArticle" select="//TL[string(ArticleNr)][count(. | key('Article',ArticleNr)[1]) = 1]"/>
<msg>
<xsl:for-each select="$distinctArticle">
<load-part>
<!--I need here the value from column[#name='ExtPR'], that has parameter[#name='prodCode']=the current TL articleNr node.
-->
<productId>
<xsl:value-of select="key('prod',column[#name='ExternalProductId'])"/>
</productId>
<!--something-->
</load-part>
</xsl:for-each>
</msg>
</xsl:for-each>
</msglist>
</xsl:template>
</xsl:stylesheet>
Desired OUTPUT:
<msglist>
<msg>
<load-part>
<productId>316442</productId>
</load-part>
<load-part>
<productId>316442</productId>
</load-part>
<load-part>
<productId>316442</productId>
</load-part>
<load-part>
<productId>316495</productId>
</load-part>
</msg>
</msglist>
I need in the productID node, the value from column[#name='ExternalProductId'], that has parameter[#name='prodCode']=the current <TL><ArticleNr> node.
I know that this 'for each' code that I've put, returns only two values, because i'm searching for the distinct values, so I was thinking that I will try with a key, but i'm not sure what I am missing.
Thank you
edited for the correct output values


Firstly, your Article key looks wrong (in the context of your question) as there are no tLoading elements in your XML. So it should be this...
<xsl:key name="Article" match="TL" use="ArticleNr"/>
But to answer your direct question, you need to define your prod key like so
<xsl:key name="prod"
match="query[#name='q2']/results/record"
use="../../parameters/parameter[#name='prodCode']"/>
Then, to look it up, do this...
<xsl:value-of select="key('prod', ArticleNr)/column[#name='ExternalProductId']"/>
Or maybe this, as they "q2" query has two ExternalProductIds...
<xsl:value-of select="key('prod', ArticleNr)/column[#name='ExternalProductId'][. != '']"/>
Try this XSLT (which retains your distinct check, and so only outputs two rows)
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes" />
<xsl:key name="Article" match="TL" use="ArticleNr"/>
<xsl:key name="prod" match="query[#name='q2']/results/record" use="../../parameters/parameter[#name='prodCode']"/>
<xsl:template match="DS">
<msglist>
<xsl:for-each select="./TL[./msg/output_getquerydata/queries/query/results/record/column[#name='actionState'] !='finished'] ">
<xsl:variable name="distinctArticle" select="//TL[string(ArticleNr)][count(. | key('Article',ArticleNr)[1]) = 1]"/>
<msg>
<xsl:for-each select="$distinctArticle">
<load-part>
<productId>
<xsl:value-of select="ArticleNr" />
<xsl:text> - </xsl:text>
<xsl:value-of select="key('prod', ArticleNr)/column[#name='ExternalProductId'][. != '']"/>
</productId>
</load-part>
</xsl:for-each>
</msg>
</xsl:for-each>
</msglist>
</xsl:template>
</xsl:stylesheet>

Related

Advanced muenchian grouping: group by items in child collection

I'm familiar with simple muenchian grouping in XSL, but I've encountered a problem, which I honestly don't even know, how to approach it.
So I've got an XML:
<whiskies>
<whisky name="ABC" percent="" region="" type="">
<tastingNotesCollection/>
<bottles>
<bottle price="" size="" level="0" date=""/>
<bottle price="" size="" level="70" date=""/>
<bottle price="" size="" level="100" date=""/>
</bottles>
<comments/>
</whisky>
<whisky name="DEF" percent="" region="" type="">
<tastingNotesCollection/>
<bottles>
<bottle price="" size="" level="0" date=""/>
<bottle price="" size="" level="100" date=""/>
</bottles>
<comments/>
</whisky>
<whisky name="GHI" percent="" region="" type="">
<tastingNotesCollection/>
<bottles>
<bottle price="" size="" level="30" date=""/>
</bottles>
<comments/>
</whisky>
<whiskies>
And the goal is to group the whiskies by levels of a bottle:
So level="0" is considered empty.
Anything from level="1" to level="99" is considered open.
And level="100" is considered unopened.
So the transformed result (will be done in HTML) should look like this:
<h1>Empty</h1>
<ul>
<li>ABC</li>
<li>DEF</li>
</ul>
<h1>Open</h1>
<ul>
<li>ABC</li>
<li>GHI</li>
</ul>
<h1>Unopened</h1>
<ul>
<li>ABC</li>
<li>DEF</li>
</ul>
As you can see, the same whisky can show up in multiple groups, depending on how much bottles there are and how full those bottles are.
The second problem is, that the "Open" group doesn't have an exact value and can be aynthing from 1 to 99.
So yeah, don't really know if this can be solved at all or how to even start on this. Any tips appreciated.

I don't think you want to use Muenchian grouping for this. You would need to define a key that enumerates all values in the range from 1 to 99 - and I believe that would take away any advantage that using a key would otherwise bring.
Since your result has either exactly or at most 3 groups (your question is ambiguous in this respect), you could do simply:
XSLT 1.0
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes"/>
<xsl:template match="/whiskies">
<output>
<group status="empty">
<xsl:for-each select="whisky[bottles/bottle/#level=0]">
<name>
<xsl:value-of select="#name"/>
</name>
</xsl:for-each>
</group>
<group status="open">
<xsl:for-each select="whisky[bottles/bottle[#level>0 and #level < 100]]">
<name>
<xsl:value-of select="#name"/>
</name>
</xsl:for-each>
</group>
<group status="unopened">
<xsl:for-each select="whisky[bottles/bottle/#level=100]">
<name>
<xsl:value-of select="#name"/>
</name>
</xsl:for-each>
</group>
</output>
</xsl:template>
</xsl:stylesheet>
to get (after fixing the input to be a well-formed XML!):
Result
<?xml version="1.0" encoding="utf-8"?>
<output>
<group status="empty">
<name>ABC</name>
<name>DEF</name>
</group>
<group status="open">
<name>ABC</name>
<name>GHI</name>
</group>
<group status="unopened">
<name>ABC</name>
<name>DEF</name>
</group>
</output>
Make your own adjustment for HTML output.
Added:
Here is an alternative approach using keys (though still not Muenchian grouping) which might be more performant:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes"/>
<xsl:key name="w" match="whisky" use="bottles/bottle/#level" />
<xsl:key name="w1" match="whisky" use="boolean(bottles/bottle[#level!=0 and #level!=100])" />
<xsl:template match="/whiskies">
<output>
<group status="empty">
<xsl:for-each select="key('w', 0)">
<name>
<xsl:value-of select="#name"/>
</name>
</xsl:for-each>
</group>
<group status="open">
<xsl:for-each select="key('w1', true())">
<name>
<xsl:value-of select="#name"/>
</name>
</xsl:for-each>
</group>
<group status="unopened">
<xsl:for-each select="key('w', 100)">
<name>
<xsl:value-of select="#name"/>
</name>
</xsl:for-each>
</group>
</output>
</xsl:template>
</xsl:stylesheet>
Or even:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes"/>
<xsl:key name="bottle" match="bottle" use="ceiling(#level div 99)" />
<xsl:template match="/whiskies">
<output>
<group status="empty">
<xsl:for-each select="key('bottle', 0)/../..">
<name>
<xsl:value-of select="#name"/>
</name>
</xsl:for-each>
</group>
<group status="open">
<xsl:for-each select="key('bottle', 1)/../..">
<name>
<xsl:value-of select="#name"/>
</name>
</xsl:for-each>
</group>
<group status="unopened">
<xsl:for-each select="key('bottle', 2)/../..">
<name>
<xsl:value-of select="#name"/>
</name>
</xsl:for-each>
</group>
</output>
</xsl:template>
</xsl:stylesheet>

If you did want to use xsl:key, you could create 3 of them with the filter criteria:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output indent="yes" />
<xsl:key name="Empty" match="whisky[bottles/bottle/#level=0]" use="#name"/>
<xsl:key name="Open" match="whisky[bottles/bottle/#level[. > 1 and . < 99]]" use="#name"/>
<xsl:key name="Unopened" match="whisky[bottles/bottle/#level=100]" use="#name"/>
<xsl:template match="/">
<xsl:variable name="whiskies" select="/whiskies/whisky/#name"/>
<xsl:for-each select="document('')/xsl:stylesheet/xsl:key/#name">
<xsl:variable name="status" select="."/>
<h1><xsl:value-of select="$status"/></h1>
<ul>
<xsl:for-each select="$whiskies[key($status, .)]">
<li><xsl:value-of select="."/></li>
</xsl:for-each>
</ul>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

XSLT 1.0 grouping on one or multiple levels

Today's challenge was grouping in XSLT 1.0. Found out there are something called keys and the Muenchian grouping.
Input XML:
<Items>
<Item>
<ID>1</ID>
<Name>A</Name>
<Country>Sweden</Country>
<Region>Småland</Region>
</Item>
<Item>
<ID>2</ID>
<Name>B</Name>
<Country>Sweden</Country>
<Region>Norrland</Region>
</Item>
<Item>
<ID>3</ID>
<Name>C</Name>
<Country>USA</Country>
<Region>Alaska</Region>
</Item>
<Item>
<ID>4</ID>
<Name>D</Name>
<Country>USA</Country>
<Region>Texas</Region>
</Item>
<Item>
<ID>5</ID>
<Name>E</Name>
<Country>Sweden</Country>
<Region>Norrland</Region>
</Item>
</Items>
I need to make thins XML into a better structure, and from this sample XML I't like to get items structured by country and region. Below is wanted result where country and region gets sorted as well:
<Items>
<Country Name="Sweden">
<Region Name="Norrland">
<Item>
<ID>2</ID>
<Name>B</Name>
</Item>
<Item>
<ID>5</ID>
<Name>E</Name>
</Item>
</Region>
<Region Name="Småland">
<Item>
<ID>1</ID>
<Name>A</Name>
</Item>
</Region>
</Country>
<Country Name="USA">
<Region Name="Alaska">
<Item>
<ID>3</ID>
<Name>C</Name>
</Item>
</Region>
<Region Name="Texas">
<Item>
<ID>4</ID>
<Name>D</Name>
</Item>
</Region>
</Country>
</Items>
EDIT:
I also want to make sure regions end up in their own country, even if there are duplicates. I edited the answer accordingly.
Also, I'd like to hint about xsltfiddle.liberty-development.net as an easy way of doing trial-and-error XSLT development...

Inspired by this article, I found a neat solution to this problem:
I have included comments for using it for single or double grouping, see comments in the code. Notice how I use first key (index) as input to the secon for-each loop:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:key name="country" match="Item" use="Country" />
<xsl:key name="region" match="Item" use="concat(Region, '|', Country)" />
<xsl:template match="/Items">
<Items>
<xsl:for-each select="Item[generate-id(.) = generate-id(key('country', Country))]">
<xsl:sort select="Country" />
<xsl:variable name="_country" select="Country" />
<xsl:element name="Country">
<xsl:attribute name="Name"><xsl:value-of select="$_country" /></xsl:attribute>
<!-- single level grouping -->
<!--<xsl:apply-templates select="key('country', Country)" />-->
<!-- double grouping -->
<!-- START -->
<xsl:for-each select="key('country', Country)[generate-id(.) = generate-id(key('region', concat(Region, '|', Country)))]">
<xsl:sort select="Region" />
<xsl:variable name="_region" select="Region" />
<xsl:element name="Region">
<xsl:attribute name="Name"><xsl:value-of select="$_region" /></xsl:attribute>
<xsl:apply-templates select="key('region', concat(Region, '|', Country))" />
</xsl:element>
</xsl:for-each>
<!-- END -->
</xsl:element>
</xsl:for-each>
</Items>
</xsl:template>
<xsl:template match="Item">
<xsl:element name="Item">
<xsl:element name="ID"><xsl:value-of select="ID" /></xsl:element>
<xsl:element name="Name"><xsl:value-of select="Name" /></xsl:element>
</xsl:element>
</xsl:template>
</xsl:stylesheet>

XSLT: Convert Name/Value pair and transform an XML

I need to convert a name value pair into XML. I'm able to generate an XML, but the element name should be grouped and it should not be duplicated. Please see below. The FieldValue element contains 2 OrderItem values in the Detail node. If the FieldValue with OrderItem repeats, then the result should be grouped into one OrderItem node. Please help.
Source XML:
<SC>
<Header>
<Record>
<FieldName>Schema</FieldName>
<FieldValue>OrderHeader</FieldValue>
</Record>
<Record>
<FieldName>Order</FieldName>
<FieldValue>1234</FieldValue>
</Record>
</Header>
<Detail>
<Record>
<FieldName>Schema</FieldName>
<FieldValue>OrderItem</FieldValue>
</Record>
<Record>
<FieldName>Item</FieldName>
<FieldValue>1</FieldValue>
</Record>
<Record>
<FieldName>Qty</FieldName>
<FieldValue>10</FieldValue>
</Record>
</Detail>
<Detail>
<Record>
<FieldName>Schema</FieldName>
<FieldValue>OrderItem</FieldValue>
</Record>
<Record>
<FieldName>Item</FieldName>
<FieldValue>2</FieldValue>
</Record>
<Record>
<FieldName>Qty</FieldName>
<FieldValue>20</FieldValue>
</Record>
</Detail>
</SC>
Target XML:
<Order>
<OrderItem>
<Item>
<Item>1</Item>
<Qty>10</Qty>
</Item>
<Item>
<Item>2</Item>
<Qty>20</Qty>
</Item>
</OrderItem>
</Order>
XSLT:
<xsl:template match="#*|node()">
<Order>
<xsl:for-each select="Detail">
<Item>
<xsl:apply-templates select="Record[position()>1]"/>
</Item>
</xsl:for-each>
</Order>
</xsl:template>
<xsl:template match="Record">
<xsl:element name="{FieldName}">
<xsl:value-of select="FieldValue"/>
</xsl:element>
</xsl:template>

The grouping can be done as follows:
<?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"
version="2.0">
<xsl:output indent="yes"/>
<xsl:template match="SC">
<Order>
<xsl:for-each-group select="Detail" group-by="Record[1]/FieldValue">
<xsl:element name="{current-grouping-key()}">
<xsl:apply-templates select="current-group()"/>
</xsl:element>
</xsl:for-each-group>
</Order>
</xsl:template>
<xsl:template match="Detail">
<Item>
<xsl:apply-templates select="Record[position() gt 1]"/>
</Item>
</xsl:template>
<xsl:template match="Record">
<xsl:element name="{FieldName}">
<xsl:value-of select="FieldValue"/>
</xsl:element>
</xsl:template>
</xsl:stylesheet>

It appears that you are trying to define two XSLT templates, when one should be sufficient. You want to match on the root and then that you want to iterate over each SC/Detail.
Then, you want to take the FieldValue of the sibling of the FieldName node that is 'Item' (for item value) and 'Qty' (for quantity value), but only those listed under 'Record'.
Note: You have specified a doubly-nested <Item> in your transformed output and this solution reflects that requirement.
This XSLT should do what you are requesting:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:template match="/">
<xsl:for-each select="SC/Detail">
<Order>
<OrderItem>
<Item>
<Item>
<xsl:value-of select="Record[FieldName[text()='Item']]/FieldValue" />
</Item>
<Qty>
<xsl:value-of select="Record[FieldName[text()='Qty']]/FieldValue" />
</Qty>
</Item>
</OrderItem>
</Order>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

Based on the object corresponding values should be taken using xslt

INPUT XML
<root>
<file1>
<commodity>
<units>1</units>
<obj>mango</obj>
</commodity>
<commodity>
<units>5</units>
<obj>guava</obj>
</commodity>
</file1>
<file2>
<category>
<object>guava</object>
<type>CAT1</type>
<colour>green</colour>
</category>
<category>
<object>mango</object>
<type>CAT2</type>
<colour>yellow</colour>
</category>
</file2>
</root>
I need to compare the values of obj in file1 and object in file2 under root, if same I need to take their corresponding units, type and colour and produce the following output using xslt.
OUTPUT XML
<output>
<com>
<name>guava</name>
<num>5</num>
<category>CAT1</category>
<col>green</col>
</com>
<com>
<name>mango</name>
<num>1</num>
<category>CAT2</category>
<col>yellow</col>
</com>
</output>
I tried the below XSLT but the response is not as expected. Its not looping properly. Could you please tell me where I am going wrong.
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:output method="xml" version="1.0" encoding="UTF-8"
indent="yes" />
<xsl:key name="object-search" match="root/file1/commodity" use="obj" />
<xsl:template match="/">
<output>
<xsl:for-each select="key('object-search', //category/object)">
<com>
<name>
<xsl:value-of select="obj" />
</name>
<num>
<xsl:value-of select="units" />
</num>
<category>
<xsl:value-of
select="//root/file2/category/type" />
</category>
<col>
<xsl:value-of
select="//root/file2/category/colour" />
</col>
</com>
</xsl:for-each>
</output>
</xsl:template>
</xsl:stylesheet>

Try it this way:
XSLT 1.0
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:key name="cat" match="category" use="object" />
<xsl:template match="/root">
<output>
<xsl:for-each select="file1/commodity">
<com>
<name>
<xsl:value-of select="obj" />
</name>
<num>
<xsl:value-of select="units" />
</num>
<xsl:variable name="cat" select="key('cat', obj)" />
<category>
<xsl:value-of select="$cat/type" />
</category>
<col>
<xsl:value-of select="$cat/colour" />
</col>
</com>
</xsl:for-each>
</output>
</xsl:template>
</xsl:stylesheet>
Note that the result is slightly different from what you posted:
<?xml version="1.0" encoding="UTF-8"?>
<output>
<com>
<name>mango</name>
<num>1</num>
<category>CAT2</category>
<col>yellow</col>
</com>
<com>
<name>guava</name>
<num>5</num>
<category>CAT1</category>
<col>green</col>
</com>
</output>
Alternatively, you could do:
XSLT 1.0
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:key name="com" match="commodity" use="obj" />
<xsl:template match="/root">
<output>
<xsl:for-each select="file2/category">
<xsl:variable name="com" select="key('com', object)" />
<com>
<name>
<xsl:value-of select="$com/obj" />
</name>
<num>
<xsl:value-of select="$com/units" />
</num>
<category>
<xsl:value-of select="type" />
</category>
<col>
<xsl:value-of select="colour" />
</col>
</com>
</xsl:for-each>
</output>
</xsl:template>
</xsl:stylesheet>
and get:
<?xml version="1.0" encoding="UTF-8"?>
<output>
<com>
<name>guava</name>
<num>5</num>
<category>CAT1</category>
<col>green</col>
</com>
<com>
<name>mango</name>
<num>1</num>
<category>CAT2</category>
<col>yellow</col>
</com>
</output>

Filter keys out of response

I have an xslt sheet in which I have 2 response objects. $response1 contains a list of ids something like:
<response>
<idlist>
<id>1</id>
<id>2</id>
</idlist>
</response>
And $response2 contains a number of objects:
<response2>
<obj id="1" name="obj1"/>
<obj id="2" name="obj2"/>
<obj id="3" name="obj3"/>
<obj id="4" name="obj4"/>
</response2>
I want to make a copy of response2 but filtering out any objects where the id matches thos contained in response 1
<xsl:variable name="copy">
<xsl:copy-of select="$response2/*[not contains($response1, id)]"/>
</xsl:variable>
any ideas greatly appreciated
C

Given a well-formed input such as:
<root>
<response>
<idlist>
<id>1</id>
<id>2</id>
</idlist>
</response>
<response2>
<obj id="1" name="obj1"/>
<obj id="2" name="obj2"/>
<obj id="3" name="obj3"/>
<obj id="4" name="obj4"/>
</response2>
</root>
the following stylesheet:
XSLT 1.0
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:template match="/root">
<xsl:variable name="ids" select="response/idlist/id" />
<output>
<xsl:copy-of select="response2/obj[not(#id=$ids)]"/>
</output>
</xsl:template>
</xsl:stylesheet>
will return:
<?xml version="1.0" encoding="UTF-8"?>
<output>
<obj id="3" name="obj3"/>
<obj id="4" name="obj4"/>
</output>
A better solution is to use a key to link the nodes by matching id:
XSLT 1.0
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:key name="id" match="id" use="." />
<xsl:template match="/root">
<output>
<xsl:copy-of select="response2/obj[not(key('id', #id))]"/>
</output>
</xsl:template>
</xsl:stylesheet>