我有下面的 xml,我需要首先对请求者进行分组,然后对于每个组,我需要根据项目是否存在进行另一个分组。
<root>
<row>
<Requester>Tim</Requester>
<Item>A</Item>
</row>
<row>
<Requester>Tim</Requester>
<Item>B</Item>
</row>
<row>
<Requester>Tim</Requester>
<Item/>
</row>
<row>
<Requester>Ken</Requester>
<Item>A</Item>
</row>
如您所见,前 3 行有匹配的请求者,但 Tim 的第 3 行没有项目。所以蒂姆应该有 2 组。
我需要的输出如下所示:
<root>
<row>
<Requester>Tim</Requester>
<Line>
<Item>A</Item> ---> Grouped together because Item exists. Item name may not match
<item>B</item>
</Line>
</row>
<row>
<Requester>Tim</Requester>
<Line>
<Item/> --> Separate group because there is no Item
</Line>
</row>
<row>
<Requester>Ken</Requester>
<Line>
<Item>A</Item>
</Line>
</row>
到目前为止我能够构建的xslt:
<xsl:template match="/">
<root>
<xsl:for-each-group select="root/row" group-by="Requester">
<row>
<Requester>
<xsl:value-of select="Requester[position()=1]"/>
</Requester>
<xsl:for-each select="current-group()">
<Line>
<Item>
<xsl:value-of select="Item"/>
</Item>
</Line>
</xsl:for-each>
</row>
</xsl:for-each-group>
</root>
</xsl:template>
尝试:
XSLT 3.0
<xsl:stylesheet version="3.0"
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">
<root>
<xsl:for-each-group select="row" group-by="Requester, exists(Item/text())" composite="yes">
<row>
<xsl:copy-of select="Requester"/>
<Line>
<xsl:copy-of select="current-group()/Item"/>
</Line>
</row>
</xsl:for-each-group>
</root>
</xsl:template>
</xsl:stylesheet>
我想你想要
<xsl:template match="root">
<xsl:copy>
<xsl:for-each-group select="row" group-by="Requester, exists(Item/node())" composite="yes">
<xsl:copy>
<xsl:copy-of select="Requester"/>
<Line>
<xsl:copy-of select="current-group()/Item"/>
</Line>
</xsl:copy>
</xsl:for-each-group>
</xsl:copy>
</xsl:template>