在 XSLT 中，多对多属性在 for-each 条件下进行比较 [英] In XSLT, many to many attributes comparing in for-each condition

问题描述

使用 XSLT 1.0

Using XSLT 1.0

是否可以过滤多对多属性，我的意思是如下示例:../../../../fieldmap/field[@name"即超过1个元素作为包含field/@name"属性的fieldmap存在并且它与定义/@title进行比较，还有更多那么存在一个包含@title 的定义元素.

Is it possible to filter many to many attributes, i mean as below example: "../../../../fieldmap/field[@name" i.e. more then 1 elements as fieldmap containing "field/@name" attribute are exists and it is comparing with definition/@title and there too more then one definition element exists containing @title.

示例:

<xsl:for-each select="../../../../fieldmaps/field[@name=../destination/@title]">

您能否建议我如何实现——如果包含@name 的字段存在于任何定义/@title 中，那么只有那些记录应该在 for-each 循环中处理?(现在看起来，它只会与第一个@title 属性进行比较并考虑所有 fieldmaps/field/@name 属性)

Can you please suggest me how it could possible to achieve -- if field containing @name existed in any of defination/@title then only those records should be process within for-each loop? (as now, it looks, it will just compare with first @title attribute and consider all fieldmaps/field/@name attributes)

谢谢

推荐答案

您可以使用变量来实现:

You can achieve that using a variable:

<xsl:variable name="titles" select="../destination/@title"/>
<!--now "titles" contains a nodeset with all the titles -->
<xsl:for-each select="../../../../fieldmaps/field[@name=$titles]">
<!-- you process each field with a name contained inside the titles nodeset -->
</xsl:for-each>

这里有一个简化的例子:

Here you have a simplified example:

输入:

<parent>
    <fieldmaps>
        <field name="One"/>
        <field name="Two"/>
        <field name="Three"/>
    </fieldmaps>
    <destinations>
        <destination title="One"/>
        <destination title="Two"/>
    </destinations>
</parent>

模板:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <!-- ++++++++++++++++++++++++++++++++ -->
    <xsl:template match="parent">
        <Results>
            <xsl:variable name="titles" select="destinations/destination/@title"/>
            <xsl:for-each select="fieldmaps/field[@name=$titles]">
                <Result title="{@name}"/>
            </xsl:for-each>
        </Results>
    </xsl:template>
    <!-- ++++++++++++++++++++++++++++++++ -->
</xsl:stylesheet>

输出:

<Results>
    <Result title="One"/>
    <Result title="Two"/>
</Results>

我希望这会有所帮助！

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