将组标题添加到三级 XSLT 分组

Question

下面的 XSLT 完成了我需要的所有事情，我可以按学位然后按选修课和要求对我的 XML 数据进行分组。但是我不能让<ACPGAREAOFSTUDY1> 标题在每个部分中只出现一次。我需要一个在学位之外的父分组，只有一个 <ACPGAREAOFSTUDY1> 数据元素来介绍它。

这是 XSLT：

 <?xml version="1.0"?><!-- DWXMLSource="STX049 Catalog parsed.xml" -->
 <!DOCTYPE xsl:stylesheet>
 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output method="xml" indent="no"/>
 <xsl:key name="degrees-by-title" match="Section" use="ICCB1" />

 <xsl:template match="/*">
 <CrystalReport>
  <xsl:apply-templates select="Group/Group/Group"/>
 </CrystalReport>
 </xsl:template>

 <xsl:template match="Group">
 <xsl:text>
 </xsl:text><Degree><areaofstudy><xsl:value-of select="ACPGAREAOFSTUDY1" /></areaofstudy>
 <xsl:apply-templates select="Details/Section[generate-id() = generate-id(key('degrees-by-title', ICCB1)[1])]" mode="group">
 <xsl:sort select="ACADPROGRAMSID1" />
 </xsl:apply-templates>
 </Degree>
 </xsl:template>

 <xsl:template match="Section" mode="group">
 <department><Degreetitle><xsl:apply-templates select="ACPGDEGREE1" /></Degreetitle>
 <Certtitle><xsl:apply-templates select="CCD11" /></Certtitle><xsl:text>
 </xsl:text><DegreeDesc><xsl:apply-templates select="ACPGCOMMENTS1" /></DegreeDesc><xsl:text>
 ICCB Code </xsl:text><ICCBcode><xsl:apply-templates select="ICCB1" /></ICCBcode><xsl:text> | Field of Study Code: </xsl:text><ProgramID><xsl:apply-templates select="ACADPROGRAMSID1" /></ProgramID>
 <xsl:variable name="courses" select="key('degrees-by-title', ICCB1)" />

 <xsl:call-template name="CourseGroup">
 <xsl:with-param name="courses" select="$courses[FlagElectives1 = 'N']" />
 <xsl:with-param name="title" select="'Program Requirements'" />
 </xsl:call-template>

 <xsl:call-template name="CourseGroup">
 <xsl:with-param name="courses" select="$courses[FlagElectives1 = 'Y']" />
 <xsl:with-param name="title" select="'Program Electives'" />
 </xsl:call-template>
 </department>
 </xsl:template>

 <xsl:template name="CourseGroup">
 <xsl:param name="courses" />
 <xsl:param name="title" />

 <xsl:if test="$courses"><xsl:text>
 </xsl:text><xsl:value-of select="$title" />
 <xsl:apply-templates select="$courses">
 <xsl:sort select="FlagElectives1" order="ascending" />
 <xsl:sort select="DEPARTMENT11" />
 <xsl:sort select="CRSNO1" />
 </xsl:apply-templates>
 </xsl:if>
 </xsl:template>

 <xsl:template match="Section"><xsl:text>
 </xsl:text><Details><class><deptname><xsl:apply-templates select="DEPARTMENT11" /></deptname><xsl:text>    </xsl:text><courseno><xsl:apply-templates select="CRSNO1" /></courseno><xsl:text>   </xsl:text>
 <classname><xsl:apply-templates select="CRSTITLE1" /></classname><xsl:text>    </xsl:text>
 <classcredit><xsl:apply-templates select="CRSMINCRED1" /></classcredit></class></Details>
 </xsl:template>

 <xsl:template match="ACPGDEGREE1/text()">
 <xsl:value-of select="concat(., ' DEGREE')"/>
 </xsl:template>

 <xsl:template match="CCD11/text()">
 <xsl:value-of select="concat(., ' CERTIFICATE')" />
 </xsl:template>
 </xsl:stylesheet>

这是基本的 XML 结构：

<?xml version="1.0" encoding="UTF-8"?>
 <CrystalReport>
 <Group Level="1">
  <Group Level="2">
  <Group Level="3">
    <Details>
      <Section>
        <ACPGDEGREE1>AAS</ACPGDEGREE1>
        <CCD11/>
        <ACPGCOMMENTS1>The Accounting program</ACPGCOMMENTS1>
        <ICCB1>3203</ICCB1>
        <ACADPROGRAMSID1>ACCOU.AAS</ACADPROGRAMSID1>
        <CRSNO1>1110</CRSNO1>
        <ACRBPRINTEDSPEC1/>
        <ACPGHOMELANGNOTREQDRSN1>General Education</ACPGHOMELANGNOTREQDRSN1>
        <CRSMINCRED1>2</CRSMINCRED1>
        <ACPGAREAOFSTUDY1>Accounting</ACPGAREAOFSTUDY1>
        <CRSTITLE1>Using Computers: An Introduction</CRSTITLE1>
        <DEPARTMENT11>ACCOU</DEPARTMENT11>
        <CRSSUBJECT1>CIS</CRSSUBJECT1>
        <ACRBLABEL1>CIS REQUIREMENT</ACRBLABEL1>
        <CRSMAXCRED1/>
        <FlagElectives1>N</FlagElectives1>
      </Section>
    </Details>
    <Details>
      <Section>
        <ACPGDEGREE1>AAS</ACPGDEGREE1>
        <CCD11/>
        <ACPGCOMMENTS1>The Accounting program</ACPGCOMMENTS1>
        <ICCB1>3203</ICCB1>
        <ACADPROGRAMSID1>ACCOU.AAS</ACADPROGRAMSID1>
        <CRSNO1>1150</CRSNO1>
        <ACRBPRINTEDSPEC1/>
        <ACPGHOMELANGNOTREQDRSN1>General Education</ACPGHOMELANGNOTREQDRSN1>
        <CRSMINCRED1>3</CRSMINCRED1>
        <ACPGAREAOFSTUDY1>Accounting</ACPGAREAOFSTUDY1>
        <CRSTITLE1>Intro to Computer</CRSTITLE1>
        <DEPARTMENT11>ACCOU</DEPARTMENT11>
        <CRSSUBJECT1>CIS</CRSSUBJECT1>
        <ACRBLABEL1>CIS</ACRBLABEL1>
        <CRSMAXCRED1/>
        <FlagElectives1>Y</FlagElectives1>
      </Section>
    </Details>
  </Group>
  </Group>
 </Group>
</CrystalReport>

生成以下 XML：

<CrystalReport>
 <Degrees><areaofstudy>Accounting</areaofstudy)
 <Degree>
<department>
  <Degreetitle>AAS DEGREE</Degreetitle>
  <Certtitle />
  <DegreeDesc>The Accounting program</DegreeDesc>
  <ICCBcode>3203</ICCBcode>
  <ProgramID>ACCOU.AAS</ProgramID>
  <h1>Program Requirements</h1>
  <Details>
    <class>
      <deptname>ACCOU</deptname>
      <courseno>1150</courseno>
      <classname>Intro to Computer</classname>
      <classcredit>3</classcredit>
      <Elective>Y</Elective>
    </class>
  </Details>
  <h1>Program Electives</h1>
  <Details>
    <class>
      <deptname>ACCOU</deptname>
      <courseno>1110</courseno>
      <classname>Using Computers: An Introduction</classname>
      <classcredit>2</classcredit>
      <Elective>N</Elective>
    </class>
  </Details>
 </department>
</Degree>
</Degrees>
</CrystalReport>

Answer 1

怎么样：

<?xml version="1.0"?>
<!-- DWXMLSource="STX049 Catalog parsed.xml" -->
<!DOCTYPE xsl:stylesheet>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="xml" indent="no"/>
  <xsl:variable name="allSections"
                select="/CrystalReport/Group/Group/Group/Details/Section" />

  <xsl:key name="kArea" match="Section" use="ACPGAREAOFSTUDY1"/>
  <xsl:key name="kDepartment" match="Section"
           use="concat(ACPGAREAOFSTUDY1, '+', ICCB1)" />

  <xsl:variable name="deptFirsts"
             select="$allSections[generate-id() = 
               generate-id(key('kDepartment',
                concat(ACPGAREAOFSTUDY1, '+', ICCB1))[1])]" />


  <xsl:template match="/">
    <CrystalReport>
      <Degrees>
        <xsl:apply-templates
          select="$allSections[generate-id() = 
                 generate-id(key('kArea', ACPGAREAOFSTUDY1)[1])]"
          mode="group"/>
      </Degrees>
    </CrystalReport>
  </xsl:template>

  <xsl:template match="Section" mode="group">
    <xsl:variable name="area" select="ACPGAREAOFSTUDY1" />
    <areaofstudy>
      <xsl:value-of select="$area"/>
    </areaofstudy>
    <xsl:text>&#xA;</xsl:text>
    <Degree>
      <xsl:apply-templates select="$deptFirsts[ACPGAREAOFSTUDY1 = $area]"
                           mode="department">
        <xsl:sort select="ACADPROGRAMSID1" />
      </xsl:apply-templates>
    </Degree>
  </xsl:template>

  <xsl:template match="Section" mode="department">
    <department>
      <xsl:apply-templates select="." mode="departmentValues" />

      <xsl:variable name="courses"
              select="key('kDepartment', 
                   concat(ACPGAREAOFSTUDY1, '+', ICCB1))" />

      <xsl:call-template name="CourseGroup">
        <xsl:with-param name="courses" select="$courses[FlagElectives1 = 'N']" />
        <xsl:with-param name="title" select="'Program Requirements'" />
      </xsl:call-template>

      <xsl:call-template name="CourseGroup">
        <xsl:with-param name="courses" select="$courses[FlagElectives1 = 'Y']" />
        <xsl:with-param name="title" select="'Program Electives'" />
      </xsl:call-template>
    </department>
  </xsl:template>

  <xsl:template match="Section" mode="departmentValues">
    <Degreetitle>
      <xsl:apply-templates select="ACPGDEGREE1" />
    </Degreetitle>
    <Certtitle>
      <xsl:apply-templates select="CCD11" />
    </Certtitle>
    <xsl:text>&#xA;</xsl:text>
    <DegreeDesc>
      <xsl:apply-templates select="ACPGCOMMENTS1" />
    </DegreeDesc>
    <xsl:text>&#xA;ICCB Code</xsl:text>
    <ICCBcode>
      <xsl:apply-templates select="ICCB1" />
    </ICCBcode>
    <xsl:text> | Field of Study Code: </xsl:text>
    <ProgramID>
      <xsl:apply-templates select="ACADPROGRAMSID1" />
    </ProgramID>
  </xsl:template>

  <xsl:template name="CourseGroup">
    <xsl:param name="courses" />
    <xsl:param name="title" />

    <xsl:if test="$courses">
      <xsl:text>&#xA;</xsl:text>
      <xsl:value-of select="$title" />
      <xsl:apply-templates select="$courses">
        <xsl:sort select="FlagElectives1" order="ascending" />
        <xsl:sort select="DEPARTMENT11" />
        <xsl:sort select="CRSNO1" />
      </xsl:apply-templates>
    </xsl:if>
  </xsl:template>

  <xsl:template match="Section">
    <xsl:text>&#xA;</xsl:text>
    <Details>
      <class>
        <deptname>
          <xsl:apply-templates select="DEPARTMENT11" />
        </deptname>
        <xsl:text>    </xsl:text>
        <courseno>
          <xsl:apply-templates select="CRSNO1" />
        </courseno>
        <xsl:text>   </xsl:text>
        <classname>
          <xsl:apply-templates select="CRSTITLE1" />
        </classname>
        <xsl:text>    </xsl:text>
        <classcredit>
          <xsl:apply-templates select="CRSMINCRED1" />
        </classcredit>
      </class>
    </Details>
  </xsl:template>

  <xsl:template match="ACPGDEGREE1/text()">
    <xsl:value-of select="concat(., ' DEGREE')"/>
  </xsl:template>

  <xsl:template match="CCD11/text()">
    <xsl:value-of select="concat(., ' CERTIFICATE')" />
  </xsl:template>
</xsl:stylesheet>

在您的示例 XML 上运行时，会产生：

<CrystalReport>
  <Degrees>
    <areaofstudy>Accounting</areaofstudy>
    <Degree>
      <department>
        <Degreetitle>AAS DEGREE</Degreetitle><Certtitle />
        <DegreeDesc>The Accounting program</DegreeDesc>
        ICCB Code<ICCBcode>3203</ICCBcode> | Field of Study Code: <ProgramID>ACCOU.AAS</ProgramID>
        Program Requirements
        <Details>
          <class>
            <deptname>ACCOU</deptname>
            <courseno>1110</courseno>
            <classname>Using Computers: An Introduction</classname>
            <classcredit>2</classcredit>
          </class>
        </Details>
        Program Electives
        <Details>
          <class>
            <deptname>ACCOU</deptname>
            <courseno>1150</courseno>
            <classname>Intro to Computer</classname>
            <classcredit>3</classcredit>
          </class>
        </Details>
      </department>
    </Degree>
  </Degrees>
</CrystalReport>