In XSLT, I have a requirement like adding all MSPFEE amount under invoice element

问题

I have a requirement like below:

In XSLT, I have a requirement like adding all MSPFEE amount under Invoice element based on FieldglassInvoiceId element, means if FieldglassInvoiceId is same then i need to consider only one the first MSP .

Input:

<Invoices xmlns="http://TargetNamespace.com/Invoices_FTP">
         <Invoice>
            <ConsolidatedInvoiceID>ONE</ConsolidatedInvoiceID>
            <FieldglassInvoiceID>123</FieldglassInvoiceID>
            <GrossInvoiceAmount>1600.00</GrossInvoiceAmount>
            <NetInvoiceAmount>1600.00</NetInvoiceAmount>
            <InvoiceAdjustmentAmount>0.00</InvoiceAdjustmentAmount>
            <MSPFee>40.00</MSPFee>
            <MSPFeeAdjustmentAmount>0.00</MSPFeeAdjustmentAmount>
         </Invoice>
         <Invoice>
            <ConsolidatedInvoiceID>ONE</ConsolidatedInvoiceID>
            <FieldglassInvoiceID>123</FieldglassInvoiceID>
            <GrossInvoiceAmount>1600.00</GrossInvoiceAmount>
            <NetInvoiceAmount>1600.00</NetInvoiceAmount>
            <InvoiceAdjustmentAmount>0.00</InvoiceAdjustmentAmount>
            <MSPFee>40.00</MSPFee>
            <MSPFeeAdjustmentAmount>0.00</MSPFeeAdjustmentAmount>
         </Invoice>
         <Invoice>
            <ConsolidatedInvoiceID>ONE</ConsolidatedInvoiceID>
            <FieldglassInvoiceID>456</FieldglassInvoiceID>
            <GrossInvoiceAmount>1600.00</GrossInvoiceAmount>
            <NetInvoiceAmount>1600.00</NetInvoiceAmount>
            <InvoiceAdjustmentAmount>0.00</InvoiceAdjustmentAmount>
            <MSPFee>40.00</MSPFee>
            <MSPFeeAdjustmentAmount>0.00</MSPFeeAdjustmentAmount>
         </Invoice>
        <Invoice>
            <ConsolidatedInvoiceID>ONE</ConsolidatedInvoiceID>
            <FieldglassInvoiceID>789</FieldglassInvoiceID>
            <GrossInvoiceAmount>1600.00</GrossInvoiceAmount>
            <NetInvoiceAmount>1600.00</NetInvoiceAmount>
            <InvoiceAdjustmentAmount>0.00</InvoiceAdjustmentAmount>
            <MSPFee>40.00</MSPFee>
            <MSPFeeAdjustmentAmount>0.00</MSPFeeAdjustmentAmount>
         </Invoice>
</Invoices>

Required Output:

<Invoices xmlns="http://TargetNamespace.com/Invoices_FTP">
         <Invoice>
                <Amount>180</Amount> -- Addition of all first MSPFEE element from all FieldGlassInvoiceId under one ConsolidatedInvoiceID
         </Invoice>
</Invoices>

回答1:

First, please make sure I understand your question. You're looking for the sum of each <Invoice>'s <MSPFee> value, but only for those <Invoice>'s that have the first instance of a unique <FieldglassInvoiceID> value.

This should work:

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns="http://TargetNamespace.com/Invoices_FTP"
    xpath-default-namespace="http://TargetNamespace.com/Invoices_FTP"
    exclude-result-prefixes="xs"
    version="2.0">

    <xsl:template match="/">
        <Invoices>
            <Amount>
                <xsl:variable name="amounts" as="xs:double *">
                    <xsl:for-each-group select="Invoices/Invoice" group-by="xs:double(FieldglassInvoiceID)">
                        <xsl:sequence select="xs:double(MSPFee)"/>
                    </xsl:for-each-group>
                </xsl:variable>
                <xsl:value-of select="sum($amounts)"/>
            </Amount>
        </Invoices>
    </xsl:template>

</xsl:stylesheet>

来源：https://stackoverflow.com/questions/43138468/in-xslt-i-have-a-requirement-like-adding-all-mspfee-amount-under-invoice-elemen

标签

xslt-2.0