XSLT样式表删除子级而不是重命名子级

Question

我有一些从Filemaker导出的粗糙的XML。 有一篇很棒的文章几乎可以回答我的问题（ XSLT问题。当原始XML位于单独的部分中时，如何将字段标记与数据配对？ ）。 该文章中的xslt样式表使用在<meta>字段中键入的名称优雅地重命名了丑陋的原始xml。

很好，除非您在下面看，否则您会看到每行都有多个元素，应将其命名为batchID ， batchPartnerID和batchPartnerName 。 但是，只有这三个元素的第一个子元素被重命名-其余的元素被简单地删除。

我认为样式表不会遍历所有元素（最初用于xml的每个<COL>仅有一个子代。不幸的是，我对XSLT不够熟悉，无法解决此问题……无济于事吗？

原始XML ：

<?xml version="1.0" encoding="UTF-8"?>
<FMPXMLRESULT xmlns="http://www.filemaker.com/fmpxmlresult">
  <ERRORCODE>0</ERRORCODE>
  <PRODUCT BUILD="11-13-2014" NAME="FileMaker" VERSION="Pro 13.0v4"/>
  <DATABASE DATEFORMAT="M/d/yyyy" LAYOUT="" NAME="ArticleIndex.fmp12" RECORDS="3678" TIMEFORMAT="h:mm:ss a"/>
  <METADATA>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="id" TYPE="NUMBER"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="author" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="url" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="brand" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="publishDate" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="categoryAll" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="originalTitle" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="originalBody" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="standardTitle" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="standardSubtitle" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="standardPublishDate" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="standardBody" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="standardNotes" TYPE="TEXT"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="standardLastUpdated" TYPE="DATE"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="standardLastReviewed" TYPE="DATE"/>
    <FIELD EMPTYOK="NO" MAXREPEAT="1" NAME="batchID" TYPE="NUMBER"/>
    <FIELD EMPTYOK="NO" MAXREPEAT="1" NAME="batchPartnerID" TYPE="NUMBER"/>
    <FIELD EMPTYOK="YES" MAXREPEAT="1" NAME="batchPartnerName" TYPE="TEXT"/>
  </METADATA>
  <RESULTSET FOUND="12">
    <ROW MODID="24" RECORDID="2028">
      <COL>
        <DATA>11023</DATA>
      </COL>
      <COL>
        <DATA>Tom Myer</DATA>
      </COL>
      <COL>
        <DATA>http://www.sitepoint.com/really-good-introduction-xml/</DATA>
      </COL>
      <COL>
        <DATA>SitePoint</DATA>
      </COL>
      <COL>
        <DATA>August 2005</DATA>
      </COL>
      <COL>
        <DATA/>
      </COL>
      <COL>
        <DATA>A Really Good Introduction to XML</DATA>
      </COL>
      <COL>
        <DATA>A Really Good Introduction to XML —E. Berliet, Lyon, France

In this chapter, we’ll cover the basics of XML – essentially, most of the information you’ll need to know to get a handle on this exciting technology. After we’re done exploring some terminology and examples, we’ll jump right in and start working with XML documents. Then, we’ll spend some time starting the project we’ll develop through the course of this book: building an XML-powered content management system.

This excerpt is taken from No Nonsense XML Web Development with PHP, SitePoint’s new release, by Thomas Myer, which was designed to help you start using XML to build intelligent ‘Future-Proof’ PHP applications today.</DATA>
      </COL>
      <COL>
        <DATA>A Really, Really, Really Good Introduction to XML</DATA>
      </COL>
      <COL>
        <DATA>Starting out right</DATA>
      </COL>
      <COL>
        <DATA>8/24/2005</DATA>
      </COL>
      <COL>
        <DATA>A Really, Really, Really Good Introduction to XML —E. Berliet, Lyon, France

In this chapter, we’ll cover the basics of XML – essentially, most of the information you’ll need to know to get a handle on this exciting technology. After we’re done exploring some terminology and examples, we’ll jump right in and start working with XML documents. Then, we’ll spend some time starting the project we’ll develop through the course of this book: building an XML-powered content management system.

This excerpt is taken from No Nonsense XML Web Development with PHP, SitePoint’s new release, by Thomas Myer, which was designed to help you start using XML to build intelligent ‘Future-Proof’ PHP applications today.

The title contains over 350 pages of XML and PHP goodies. It walks you through the process of building a fully-functional XML-based content management system with PHP. And all the code used in the book is available to customers in a downloadalbe archive.

To find out more about “No Nonsense XML Web Development with PHP”, visit the book’s information page, or review the contents of the entire publication. As always, you can download this excerpt as a PDF if you prefer.
     </COL>
      <COL>
        <DATA/>
      </COL>
      <COL>
        <DATA/>
      </COL>
      <COL>
        <DATA/>
      </COL>
      <COL>
        <DATA>4127</DATA>
        <DATA>4130</DATA>
        <DATA>4136</DATA>
      </COL>
      <COL>
        <DATA>1101</DATA>
        <DATA>1107</DATA>
        <DATA>1140</DATA>
      </COL>
      <COL>
        <DATA>First Client Name</DATA>
        <DATA>Second Client Name</DATA>
        <DATA>Third Client Name</DATA>
      </COL>
    </ROW>
  </RESULTSET>
</FMPXMLRESULT>

XSLT样式表 ：

<xsl:stylesheet 
  version="1.0" 
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:fmp="http://www.filemaker.com/fmpxmlresult"
  exclude-result-prefixes="fmp"
>
<xsl:output method="xml" encoding="UTF-8" indent="yes"/>

  <!-- the key indexes the METADATA fields by their position -->
  <xsl:key 
    name="kMetaData" 
    match="fmp:METADATA/fmp:FIELD" 
    use="count(preceding-sibling::fmp:FIELD) + 1" 
  />

  <!-- separate templates increase readability -->
  <xsl:template match="/fmp:FMPXMLRESULT">
    <content>
      <xsl:apply-templates select="fmp:RESULTSET/fmp:ROW" />
    </content>
  </xsl:template>

  <xsl:template match="fmp:ROW">
    <contentitem>
      <xsl:apply-templates select="fmp:COL" />
    </contentitem>
  </xsl:template>

  <xsl:template match="fmp:COL">
    <!-- column name lookup is high-speed because of the key -->
    <xsl:element name="{string(key('kMetaData', position())/@NAME)}">
      <xsl:value-of select="fmp:DATA" />
    </xsl:element>
  </xsl:template>

</xsl:stylesheet>

翻译的XML ：

<?xml version="1.0" encoding="UTF-8"?>
<content>
  <contentitem>
    <id>11023</id>
    <author>Tom Myer</author>
    <url>http://www.sitepoint.com/really-good-introduction-xml/</url>
    <brand>SitePoint</brand>
    <publishDate>August 2005</publishDate>
    <categoryAll/>
    <originalTitle>A Really Good Introduction to XML</originalTitle>
    <originalBody>A Really Good Introduction to XML —E. Berliet, Lyon, France

In this chapter, we’ll cover the basics of XML – essentially, most of the information you’ll need to know to get a handle on this exciting technology. After we’re done exploring some terminology and examples, we’ll jump right in and start working with XML documents. Then, we’ll spend some time starting the project we’ll develop through the course of this book: building an XML-powered content management system.

This excerpt is taken from No Nonsense XML Web Development with PHP, SitePoint’s new release, by Thomas Myer, which was designed to help you start using XML to build intelligent ‘Future-Proof’ PHP applications today.</originalBody>
    <standardTitle>A Really, Really, Really Good Introduction to XML</standardTitle>
    <standardSubtitle>Starting out right</standardSubtitle>
    <standardPublishDate>8/24/2005</standardPublishDate>
    <standardBody>A Really, Really, Really Good Introduction to XML —E. Berliet, Lyon, France

In this chapter, we’ll cover the basics of XML – essentially, most of the information you’ll need to know to get a handle on this exciting technology. After we’re done exploring some terminology and examples, we’ll jump right in and start working with XML documents. Then, we’ll spend some time starting the project we’ll develop through the course of this book: building an XML-powered content management system.

This excerpt is taken from No Nonsense XML Web Development with PHP, SitePoint’s new release, by Thomas Myer, which was designed to help you start using XML to build intelligent ‘Future-Proof’ PHP applications today.

The title contains over 350 pages of XML and PHP goodies. It walks you through the process of building a fully-functional XML-based content management system with PHP. And all the code used in the book is available to customers in a downloadalbe archive.

To find out more about “No Nonsense XML Web Development with PHP”, visit the book’s information page, or review the contents of the entire publication. As always, you can download this excerpt as a PDF if you prefer.</standardBody>
    <standardNotes/>
    <standardLastUpdated/>
    <standardLastReviewed/>
    <batchID>4127</batchID>
    <batchPartnerID>1101</batchPartnerID>
    <batchPartnerName>First Client Name</batchPartnerName>
  </contentitem>
</content>

Answer 1

或者简单地：

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fmp="http://www.filemaker.com/fmpxmlresult"
exclude-result-prefixes="fmp">
<xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes"/>

<xsl:key name="kMetaData" match="fmp:METADATA/fmp:FIELD" use="count(preceding-sibling::fmp:FIELD) + 1" />

<!-- separate templates are not required for something as simple as this -->
<xsl:template match="/">
    <content>
        <xsl:for-each select="fmp:FMPXMLRESULT/fmp:RESULTSET/fmp:ROW">
            <contentitem>
                <xsl:for-each select="fmp:COL">
                    <xsl:variable name="field-name" select="key('kMetaData', position())/@NAME" />
                    <xsl:for-each select="fmp:DATA">
                        <xsl:element name="{$field-name}">
                            <xsl:value-of select="." />
                        </xsl:element>
                    </xsl:for-each>
                </xsl:for-each>
            </contentitem>
        </xsl:for-each>
    </content>
</xsl:template>

</xsl:stylesheet>

请注意，这是假设您的字段名称也是（并将始终是）有效的XML元素名称。 如果不确定，请在导出时切换到FMPDSORESULT语法。 这会将您的字段名称转换为有效的XML名称（例如，用下划线替换空格）-但您还需要其他XSLT样式表。

---

编辑：

例如，给定以下FMPDSORESULT导出作为输入：

XML

<FMPDSORESULT xmlns="http://www.filemaker.com/fmpdsoresult">
<ERRORCODE>0</ERRORCODE>
<DATABASE>example.fmp12</DATABASE>
<LAYOUT/>
<ROW MODID="1" RECORDID="1">
<some_field>Alpha</some_field>
<another_field>
<DATA>101</DATA>
<DATA>102</DATA>
<DATA>103</DATA>
</another_field>
</ROW>
<ROW MODID="2" RECORDID="2">
<some_field>Bravo</some_field>
<another_field>
<DATA>21</DATA>
<DATA>22</DATA>
</another_field>
</ROW>
</FMPDSORESULT>

以下样式表：

XSLT 1.0

<xsl:stylesheet version='1.0'       
xmlns:xsl='http://www.w3.org/1999/XSL/Transform'
xmlns:fmp="http://www.filemaker.com/fmpdsoresult"
exclude-result-prefixes="fmp">
<xsl:output version="1.0" encoding="UTF-8" method="xml" indent="yes"/>
<xsl:strip-space elements="*"/>

<xsl:template match="/">
    <root>
        <xsl:for-each select="fmp:FMPDSORESULT/fmp:ROW">
            <row> 
                <xsl:apply-templates/>
            </row>
        </xsl:for-each>
    </root>
</xsl:template>

<xsl:template match="fmp:ROW/*[not(fmp:DATA)]">
    <xsl:element name="{name(.)}">
        <xsl:value-of select="."/>
    </xsl:element>
</xsl:template>

<xsl:template match="fmp:DATA">
    <xsl:element name="{name(..)}">
        <xsl:value-of select="."/>
    </xsl:element>
</xsl:template>

</xsl:stylesheet>

将返回：

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <row>
    <some_field>Alpha</some_field>
    <another_field>101</another_field>
    <another_field>102</another_field>
    <another_field>103</another_field>
  </row>
  <row>
    <some_field>Bravo</some_field>
    <another_field>21</another_field>
    <another_field>22</another_field>
  </row>
</root>

Answer 2

因此， 听起来您想要具有三个<DATA>值的三个batchID ，并且batchPartnerID和batchPartnerName相同。 那正确吗？

如果是这样，可以使用for-each遍历<DATA> ：

<xsl:template match="fmp:COL">
  <xsl:variable name="elName"
                select="key('kMetaData', position())/@NAME" />
  <xsl:for-each select="fmp:DATA">
    <xsl:element name="{$elName}">
      <xsl:value-of select="." />
    </xsl:element>
  </xsl:for-each>
</xsl:template>

或者您可以使用参数化的模板：

<xsl:template match="fmp:COL">
  <xsl:apply-templates select="fmp:DATA">
    <xsl:with-param name="elName" select="key('kMetaData', position())/@NAME" />
  </xsl:apply-templates>
</xsl:template>

<xsl:template match="fmp:DATA">
  <xsl:param name="elName" select="name()" />

  <xsl:element name="{$elName}">
    <xsl:value-of select="." />
  </xsl:element>
</xsl:template>