我有一个转换,我试图记录一组扁平的交易细节,并在文件的末尾提供按招标类型和登记号分组的总数的总和。
记录一组单独的交易细节是很容易的部分,我有这个工作正常,但我正在努力与摘要部分。
麻烦的是,我不知道有多少不同的寄存器号,或者有多少招标类型(因此明确列出xslt中的静态过滤字符串的摘要是不行的) ,所以某种分组似乎是有序的。
还有一个扳手 - 我使用XSLT 1.0 ...
我尝试搞乱muenchian分组,但是在复合键要求之间(寄存器生活在与支付方式不同的级别)和我对muenchian方法和键如何工作的有限理解我不能似乎让它工作,但我认为它仍然可能是需要的技巧......
关于我如何使用muenchia的任何建议 - 神奇地让它发挥作用?
这是一个示例源文档:
<s0:SalesCollection xmlns:s0="http://mySourceSchema">
<s0:Sale transactionnumber="1" register="1">
<s0:Tender amount="1.11" paymentmethod="visa" />
<s0:Tender amount="2.22" paymentmethod="mastercard" />
</s0:Sale>
<s0:Sale transactionnumber="2" register="1">
<s0:Tender amount="5.55" paymentmethod="discover" />
<s0:Tender amount="4.44" paymentmethod="visa" />
</s0:Sale>
<s0:Sale transactionnumber="1" register="2">
<s0:Tender amount="9.99" paymentmethod="amex" />
<s0:Tender amount="8.88" paymentmethod="visa" />
</s0:Sale>
</s0:SalesCollection>
这就是我想要的(再次,我已经记录了[@ type ='detail']记录):
<ns0:root xmlns:ns0="http://myDestinationSchema">
<ns0:record type="detail" transactionnumber="1" register="1" amount="1.11" paymentmethod="visa" />
<ns0:record type="detail" transactionnumber="1" register="1" amount="2.22" paymentmethod="mastercard" />
<ns0:record type="detail" transactionnumber="2" register="1" amount="5.55" paymentmethod="discover" />
<ns0:record type="detail" transactionnumber="2" register="1" amount="4.44" paymentmethod="visa" />
<ns0:record type="detail" transactionnumber="1" register="2" amount="9.99" paymentmethod="amex" />
<ns0:record type="detail" transactionnumber="1" register="2" amount="8.88" paymentmethod="visa" />
<ns0:record type="summary" register="1" amount="5.55" paymentmethod="visa" />
<ns0:record type="summary" register="1" amount="2.22" paymentmethod="mastercard" />
<ns0:record type="summary" register="1" amount="5.55" paymentmethod="discover" />
<ns0:record type="summary" register="2" amount="9.99" paymentmethod="amex" />
<ns0:record type="summary" register="2" amount="8.88" paymentmethod="visa" />
</ns0:root>
那么如何使用xslt 1.0创建按寄存器和paymentmethod分组的摘要记录?
答案 0 :(得分:3)
此转化:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:s0="http://mySourceSchema"
xmlns:ns0="http://myDestinationSchema" exclude-result-prefixes="s0">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:key name="kTendByTypeAndReg" match="s0:Tender"
use="concat(../@register, '#', @paymentmethod)"/>
<xsl:template match="/*">
<ns0:root xmlns:ns0="http://myDestinationSchema">
<xsl:apply-templates select="*/*"/>
<xsl:apply-templates mode="group" select=
"*/*[generate-id()
=generate-id(key('kTendByTypeAndReg',
concat(../@register, '#', @paymentmethod))[1]
)
]"/>
</ns0:root>
</xsl:template>
<xsl:template match="s0:Tender">
<ns0:record type="detail" transactionnumber="{../@transactionnumber}"
register="{../@register}" amount="{@amount}" paymentmethod="{@paymentmethod}" />
</xsl:template>
<xsl:template match="*" mode="group">
<ns0:record type="summary" register="{../@register}" paymentmethod="{@paymentmethod}"
amount="{sum(key('kTendByTypeAndReg',concat(../@register,'#',@paymentmethod))
/@amount)}"/>
</xsl:template>
</xsl:stylesheet>
应用于提供的XML文档时:
<s0:SalesCollection xmlns:s0="http://mySourceSchema">
<s0:Sale transactionnumber="1" register="1">
<s0:Tender amount="1.11" paymentmethod="visa" />
<s0:Tender amount="2.22" paymentmethod="mastercard" />
</s0:Sale>
<s0:Sale transactionnumber="2" register="1">
<s0:Tender amount="5.55" paymentmethod="discover" />
<s0:Tender amount="4.44" paymentmethod="visa" />
</s0:Sale>
<s0:Sale transactionnumber="1" register="2">
<s0:Tender amount="9.99" paymentmethod="amex" />
<s0:Tender amount="8.88" paymentmethod="visa" />
</s0:Sale>
</s0:SalesCollection>
产生想要的结果:
<ns0:root xmlns:ns0="http://myDestinationSchema">
<ns0:record type="detail" transactionnumber="1" register="1" amount="1.11" paymentmethod="visa"/>
<ns0:record type="detail" transactionnumber="1" register="1" amount="2.22" paymentmethod="mastercard"/>
<ns0:record type="detail" transactionnumber="2" register="1" amount="5.55" paymentmethod="discover"/>
<ns0:record type="detail" transactionnumber="2" register="1" amount="4.44" paymentmethod="visa"/>
<ns0:record type="detail" transactionnumber="1" register="2" amount="9.99" paymentmethod="amex"/>
<ns0:record type="detail" transactionnumber="1" register="2" amount="8.88" paymentmethod="visa"/>
<ns0:record type="summary" register="1" paymentmethod="visa" amount="5.55"/>
<ns0:record type="summary" register="1" paymentmethod="mastercard" amount="2.22"/>
<ns0:record type="summary" register="1" paymentmethod="discover" amount="5.55"/>
<ns0:record type="summary" register="2" paymentmethod="amex" amount="9.99"/>
<ns0:record type="summary" register="2" paymentmethod="visa" amount="8.88"/>
</ns0:root>
<强>解释强>:
正确使用:
<强> Muenchian Grouping method 强>
AVT s(属性值模板)。
答案 1 :(得分:1)
当这个XSLT:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ns0="http://myDestinationSchema"
xmlns:s0="http://mySourceSchema"
exclude-result-prefixes="s0"
version="1.0">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:key
name="kTenderByRegisterAndMethod"
match="s0:Tender"
use="concat(parent::*/@register, '+', @paymentmethod)"/>
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="/*">
<ns0:root>
<xsl:apply-templates select="*/s0:Tender"/>
<xsl:apply-templates
select="*/s0:Tender[generate-id() =
generate-id(key(
'kTenderByRegisterAndMethod',
concat(parent::*/@register,
'+',
@paymentmethod))[1])]"
mode="summary"/>
</ns0:root>
</xsl:template>
<xsl:template match="s0:Tender">
<ns0:record type="detail">
<xsl:apply-templates select="parent::*/@*|@*"/>
</ns0:record>
</xsl:template>
<xsl:template match="s0:Tender" mode="summary">
<ns0:record type="summary" register="{parent::*/@register}">
<xsl:attribute name="amount">
<xsl:value-of
select="sum(
key('kTenderByRegisterAndMethod',
concat(parent::*/@register,
'+', @paymentmethod))/@amount)"/>
</xsl:attribute>
<xsl:apply-templates select="@*[not(name() = 'amount')]"/>
</ns0:record>
</xsl:template>
</xsl:stylesheet>
...适用于原始XML:
<s0:SalesCollection xmlns:s0="http://mySourceSchema">
<s0:Sale transactionnumber="1" register="1">
<s0:Tender amount="1.11" paymentmethod="visa"/>
<s0:Tender amount="2.22" paymentmethod="mastercard"/>
</s0:Sale>
<s0:Sale transactionnumber="2" register="1">
<s0:Tender amount="5.55" paymentmethod="discover"/>
<s0:Tender amount="4.44" paymentmethod="visa"/>
</s0:Sale>
<s0:Sale transactionnumber="1" register="2">
<s0:Tender amount="9.99" paymentmethod="amex"/>
<s0:Tender amount="8.88" paymentmethod="visa"/>
</s0:Sale>
</s0:SalesCollection>
...生成了想要的结果:
<ns0:root xmlns:ns0="http://myDestinationSchema">
<ns0:record type="detail" transactionnumber="1" register="1" amount="1.11" paymentmethod="visa"/>
<ns0:record type="detail" transactionnumber="1" register="1" amount="2.22" paymentmethod="mastercard"/>
<ns0:record type="detail" transactionnumber="2" register="1" amount="5.55" paymentmethod="discover"/>
<ns0:record type="detail" transactionnumber="2" register="1" amount="4.44" paymentmethod="visa"/>
<ns0:record type="detail" transactionnumber="1" register="2" amount="9.99" paymentmethod="amex"/>
<ns0:record type="detail" transactionnumber="1" register="2" amount="8.88" paymentmethod="visa"/>
<ns0:record type="summary" register="1" amount="5.55" paymentmethod="visa"/>
<ns0:record type="summary" register="1" amount="2.22" paymentmethod="mastercard"/>
<ns0:record type="summary" register="1" amount="5.55" paymentmethod="discover"/>
<ns0:record type="summary" register="2" amount="9.99" paymentmethod="amex"/>
<ns0:record type="summary" register="2" amount="8.88" paymentmethod="visa"/>
</ns0:root>
<强>解释强>
你是在正确的轨道上检查Muenchian Grouping。注意我使用的复合键匹配s0:Tender
元素,方法是连接父级的@register
值,“+”符号(为方便起见,确保连接不会被破坏),以及它们的{{1价值。
坚持使用Muenchian Grouping,即使这不是最容易理解的概念。我,我自己,通过查看Muenchian Grouping-related questions on SO并试图回答它们来学习;随着时间的推移,它开始为我清理。