[我正在尝试帮助有问题的朋友,我已经动脑了几个小时,无法弄清楚,我们正在尝试从下面删除重复的数据值(transaction_date不是giftShop)
XML输入
<?xml version="1.0"?>
<transactions>
<transaction>
<transaction_date>01/11/2019</transaction_date>
<giftShop>1</giftShop>
</transaction>
<transaction>
<transaction_date>01/11/2019</transaction_date>
<giftShop>2</giftShop>
</transaction>
<transaction>
<transaction_date>01/11/2019</transaction_date>
<giftShop>3</giftShop>
</transaction>
<transaction>
<transaction_date>01/11/2019</transaction_date>
<giftShop>2</giftShop>
</transaction>
<transaction>
<transaction_date>01/11/2019</transaction_date>
<giftShop>3</giftShop>
</transaction>
<transaction>
<transaction_date>02/11/2019</transaction_date>
<giftShop>2</giftShop>
</transaction>
<transaction>
<transaction_date>03/11/2019</transaction_date>
<giftShop>3</giftShop>
</transaction>
<transaction>
<transaction_date>01/11/2019</transaction_date>
<giftShop>1</giftShop>
</transaction>
<transaction>
<transaction_date>02/11/2019</transaction_date>
<giftShop>3</giftShop>
</transaction>
</transactions>
Xslt输入
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="transactions">
<h2>Transactions</h2>
<xsl:for-each select="//transaction/giftShop[not(.=preceding::*)]">
<tr>
<xsl:element name="shop">
<xsl:attribute name="ID">
<xsl:value-of select="."/>
</xsl:attribute>
<xsl:variable name="currentShop">
<xsl:value-of select="."/>
</xsl:variable>
<xsl:for-each select="//transaction[giftShop=$currentShop]/transaction_date[not(..=preceding::transaction_date)]">
<xsl:element name="Day">
<xsl:attribute name="Date">
<xsl:value-of select="."/>
</xsl:attribute>
</xsl:element>
</xsl:for-each>
</xsl:element>
</tr>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
期望的输出
<h2>Transactions</h2>
<tr>
<shop ID="1">
<Day Date="01/11/2019"/>
</shop>
</tr>
<tr>
<shop ID="2">
<Day Date="01/11/2019"/>
<Day Date="02/11/2019"/>
</shop>
</tr>
<tr>
<shop ID="3">
<Day Date="01/11/2019"/>
<Day Date="03/11/2019"/>
<Day Date="02/11/2019"/>
</shop>
</tr>
自动输出
<h2>Transactions</h2>
<tr>
<shop ID="1">
<Day Date="01/11/2019"/>
<Day Date="01/11/2019"/>
</shop>
</tr>
<tr>
<shop ID="2">
<Day Date="01/11/2019"/>
<Day Date="01/11/2019"/>
<Day Date="02/11/2019"/>
<Day Date="02/11/2019"/>
</shop>
</tr>
<tr>
<shop ID="3">
<Day Date="01/11/2019"/>
<Day Date="01/11/2019"/>
<Day Date="03/11/2019"/>
<Day Date="02/11/2019"/>
</shop>
</tr>
任何帮助都会令我感激,因为它使我发疯。
我建议您按照以下方法尝试:
XSLT 2.0
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:template match="/transactions">
<root>
<xsl:for-each-group select="transaction" group-by="giftShop">
<shop ID="{current-grouping-key()}">
<xsl:for-each select="distinct-values(current-group()/transaction_date)">
<Day Date="{.}"/>
</xsl:for-each>
</shop>
</xsl:for-each-group>
</root>
</xsl:template>
</xsl:stylesheet>