刪除父元素如果子元素不存在元素

Question

在下面的文件中，如果屬性UMProductId的值爲「放射療法」，我想刪除/刪除CPT元素。

  <?xml version="1.0" encoding="us-ascii"?> 
      <AuthBatch SchemaVersion="1.0" InsurerId="123" Sequence="110" CreateDate="2014-07-10T02:45:02.317" AuthorizationCount="3"> 
       <Authorizations> 
        <Authorization EffectiveDate="2014-07-09" Id="12345"> 
         <CPTs> 
          <CPT Sequence="1" UMProductId="Radiation Therapy" ChangeStatus="ADD" ResendIndicator="INITIAL" /> 
          <CPT Sequence="2" UMProductId="Radiation Therapy" ChangeStatus="ADD" ResendIndicator="INITIAL" /> 
          <CPT Sequence="3" UMProductId="Radiation Therapy" ChangeStatus="ADD" ResendIndicator="INITIAL" /> 
         </CPTs> 
         <Program Id="46756" Name="test" ChangeStatus="ADD" /> 
        </Authorization> 
        <Authorization EffectiveDate="2014-07-09" Id="12345"> 
         <CPTs> 
          <CPT Sequence="1" UMProductId="test" ChangeStatus="ADD" ResendIndicator="INITIAL" /> 
          <CPT Sequence="2" UMProductId="Radiation Therapy" ChangeStatus="ADD" ResendIndicator="INITIAL" /> 
          <CPT Sequence="3" UMProductId="Radiation Therapy" ChangeStatus="ADD" ResendIndicator="INITIAL" /> 
         </CPTs> 
         <Program Id="46756" Name="test" ChangeStatus="ADD" /> 
        </Authorization> 
        </Authorizations> 
      </AuthBatch> 

但是，在一個授權，如果所有的CPT/UMProductId值是「放射治療」的話，我想刪除整個授權本身。

下面是我的XSLT，這是消除CPT元素，但不是授權：

  <xsl:stylesheet 
       xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0" > 

       <xsl:template match="@* | node()"> 

        <xsl:copy> 
         <xsl:apply-templates select="@* | node()"/> 
        </xsl:copy> 

       </xsl:template> 

       <xsl:template match="AuthBatch/Authorizations/Authorization/CPTs/CPT[@UMProductId='RADIATION THERAPY' or 
        @UMProductId='Radiation Therapy']"/> 

       <xsl:template match="AuthBatch/Authorizations/Authorization[not(CPTs/CPT)]"/> 

      </xsl:stylesheet> 

MyOutput中：

  <?xml version="1.0" encoding="UTF-8"?> 
      <?xml version="1.0" encoding="us-ascii"?> 
      <AuthBatch SchemaVersion="1.0" InsurerId="123" Sequence="110" CreateDate="2014-07-10T02:45:02.317" AuthorizationCount="3"> 
       <Authorizations> 
        <Authorization EffectiveDate="2014-07-09" Id="12345"> 
         <CPTs/> 
         <Program Id="46756" Name="test" ChangeStatus="ADD" /> 
        </Authorization> 
        <Authorization EffectiveDate="2014-07-09" Id="4567"> 
         <CPTs> 
          <CPT Sequence="1" UMProductId="test" ChangeStatus="ADD" ResendIndicator="INITIAL" /> 
         </CPTs> 
         <Program Id="46756" Name="test" ChangeStatus="ADD" /> 
        </Authorization> 
       </Authorizations> 
      </AuthBatch> 

預期輸出：

 <?xml version="1.0" encoding="UTF-8"?> 
     <?xml version="1.0" encoding="us-ascii"?> 
     <AuthBatch SchemaVersion="1.0" InsurerId="123" Sequence="110" CreateDate="2014-07-10T02:45:02.317" AuthorizationCount="3"> 
      <Authorizations> 

       <Authorization EffectiveDate="2014-07-09" Id="4567"> 
        <CPTs> 
         <CPT Sequence="1" UMProductId="test" ChangeStatus="ADD" ResendIndicator="INITIAL" /> 
        </CPTs> 
        <Program Id="46756" Name="test" ChangeStatus="ADD" /> 
       </Authorization> 
      </Authorizations> 
     </AuthBatch> 

請幫助我。提前致謝！！。

感謝， 阿賈伊

Answer 1

嘗試：

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

<!-- identity transform --> 
<xsl:template match="@*|node()"> 
    <xsl:copy> 
     <xsl:apply-templates select="@*|node()"/> 
    </xsl:copy> 
</xsl:template> 

<!-- suppress Authorizations where all CPT nodes are "Radiation Therapy" -->  
<xsl:template match="Authorization[not(CPTs/CPT/@UMProductId!='Radiation Therapy')]"/> 
<!-- suppress CPTs whose value is "Radiation Therapy" -->  
<xsl:template match="CPT[@UMProductId='Radiation Therapy']"/> 

</xsl:stylesheet>