CODEWITHSUNDEEP
xmlxslt
Klaptrap
Klaptrap

Reputation: 311

Merging of XML Nodes

Can anyone give me an example of merging the following XML nodes with XSLT?

<pre>
    <Table1>
        <VendorID>123456</VendorID>
        <VendorName>StackOverflow Inc</VendorName>
        <Type>ADDRESS</Type>
        <TypeName>Mailing</TypeName>
        <DescriptionType>Main Mailing</DescriptionType>
        <Description>P O Box 01 Manama Bahrain</Description>
        <Online>0</Online>
        <CommodityTypeDesc/>
    </Table1>
</pre>

<pre>
    <Table1>
        <VendorID>123456</VendorID>
        <VendorName>StackOverflow Inc</VendorName>
        <Type>ADDRESS</Type>
        <TypeName>Remittance</TypeName>
        <DescriptionType>Main Remittance</DescriptionType>
        <Description>P O Box 02 Manama Bahrain</Description>
        <Online>0</Online>
        <CommodityTypeDesc/>
    </Table1>
</pre>

The resulting XML would need to group the differing address nodes into one parent node for the vendor.

Can you also tell me which XSLT/XML tool you use for this work.

Upvotes: 2

Views: 258

Answers (2)

Wayne
Wayne

Reputation: 60424

The following stylesheet groups by VendorID. Note that you don't say which elements are part of the address and which aren't. This stylesheet assumes that only VendorID and VendorName are not part of the address. Edit accordingly.

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:key name="byVendor" match="root/pre" use="Table1/VendorID" />
    <xsl:template match="@*|node()" name="identity">
        <xsl:copy>
            <xsl:apply-templates select="@*|node()" />
        </xsl:copy>
    </xsl:template>
    <xsl:template match="root/pre" />
    <xsl:template
        match="root/pre[generate-id() =
                        generate-id(key('byVendor', Table1/VendorID))]">
        <xsl:call-template name="identity"/>
    </xsl:template>
    <xsl:template match="Table1">
        <xsl:copy>
            <xsl:apply-templates select="@*|VendorID|VendorName" />
            <Addresses>
                <xsl:apply-templates select="key('byVendor', VendorID)/Table1"
                                       mode="address" />
            </Addresses>
        </xsl:copy>
    </xsl:template>
    <xsl:template match="Table1" mode="address">
        <Address>
            <xsl:apply-templates 
                 select="*[not(self::VendorID or self::VendorName)]" />
        </Address>
    </xsl:template>
</xsl:stylesheet>

When applied to this input:

<root>
    <pre>
        <Table1>
            <VendorID>123456</VendorID>
            <VendorName>StackOverflow Inc</VendorName>
            <Type>ADDRESS</Type>
            <TypeName>Mailing</TypeName>
            <DescriptionType>Main Mailing</DescriptionType>
            <Description>P O Box 01 Manama Bahrain</Description>
            <Online>0</Online>
            <CommodityTypeDesc />
        </Table1>
    </pre>
    <pre>
        <Table1>
            <VendorID>123456</VendorID>
            <VendorName>StackOverflow Inc</VendorName>
            <Type>ADDRESS</Type>
            <TypeName>Remittance</TypeName>
            <DescriptionType>Main Remittance</DescriptionType>
            <Description>P O Box 02 Manama Bahrain</Description>
            <Online>0</Online>
            <CommodityTypeDesc />
        </Table1>
    </pre>
</root>

Produces:

<root>
    <pre>
        <Table1>
            <VendorID>123456</VendorID>
            <VendorName>StackOverflow Inc</VendorName>
            <Addresses>
                <Address>
                    <Type>ADDRESS</Type>
                    <TypeName>Mailing</TypeName>
                    <DescriptionType>Main Mailing</DescriptionType>
                    <Description>P O Box 01 Manama Bahrain</Description>
                    <Online>0</Online>
                    <CommodityTypeDesc />
                </Address>
                <Address>
                    <Type>ADDRESS</Type>
                    <TypeName>Remittance</TypeName>
                    <DescriptionType>Main Remittance</DescriptionType>
                    <Description>P O Box 02 Manama Bahrain</Description>
                    <Online>0</Online>
                    <CommodityTypeDesc />
                </Address>
            </Addresses>
        </Table1>
    </pre>
</root>

Upvotes: 4

Klaptrap
Klaptrap

Reputation: 311

XML is actually, as follows, hence why I am getting duplicates:

<Vendors>
    <Table1>
        <VendorID>123456</VendorID>
        <VendorName>StackOverflow Inc</VendorName>
        <Type>ADDRESS</Type>
        <TypeName>Mailing</TypeName>
        <DescriptionType>Main Mailing</DescriptionType>
        <Description>P O Box 01 Manama Bahrain</Description>
        <Online>0</Online>
        <CommodityTypeDesc />
    </Table1>
    <Table1>
        <VendorID>123456</VendorID>
        <VendorName>StackOverflow Inc</VendorName>
        <Type>ADDRESS</Type>
        <TypeName>Remittance</TypeName>
        <DescriptionType>Main Remittance</DescriptionType>
        <Description>P O Box 02 Manama Bahrain</Description>
        <Online>0</Online>
        <CommodityTypeDesc />
    </Table1>
</Vendors>

Upvotes: 0

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