试图创建一个动态级联列表

Question

所以我有一个客户端的数据（见下文），我想创建一个项目列表，可以有任意数量的层次。我也希望它能够在不止一次列出项目的方面具有活力。 CMS成立后，TAG将向其父母索要。无论TAG声称它的父母，它的孩子都应该在下面复制。不知道如何使用XSLT解决这个问题，但一个简单的例子应该结束了看起来像这样..

<ul> 
    <li>Missions</li> 
    <li> 
     <ul> 
      <li>Kampala, Uganda</li> 
      <li>Lima, Peru</li> 
     </ul> 
    </li> 
</ul> 

如果Kampala, Uganda还声称别的东西作为家长，它会出现多次。如果Kampala, Uganda有其他标签声称它是父母，这些孩子将在每种情况下级联在Kampala, Uganda之下。

<data> 
<tags> 
    <section id="3" handle="tags">Tags</section> 
    <entry id="72"> 
     <parents> 
      <item handle="meetings">Meetings</item> 
     </parents> 
     <tag handle="bible-studies">Bible studies</tag> 
    </entry> 
    <entry id="51"> 
     <parents> 
      <item handle="missions">Missions</item> 
     </parents> 
     <tag handle="brazil">Brazil</tag> 
    </entry> 
    <entry id="31"> 
     <parents> 
      <item handle="ministry">Ministry</item> 
     </parents> 
     <tag handle="childrens-ministry">Children's ministry</tag> 
    </entry> 
    <entry id="28"> 
     <parents> 
      <item handle="ministry">Ministry</item> 
     </parents> 
     <tag handle="college-and-career-ministry">College and Career ministry</tag> 
    </entry> 
    <entry id="56"> 
     <parents> 
      <item handle="the-islands-of-vanuatu">The Islands of Vanuatu</item> 
     </parents> 
     <tag handle="fanafo-christian-fellowship">Fanafo Christian Fellowship</tag> 
    </entry> 
    <entry id="29"> 
     <parents> 
      <item handle="ministry">Ministry</item> 
     </parents> 
     <tag handle="high-school-ministry">High School ministry</tag> 
    </entry> 
    <entry id="48"> 
     <parents> 
      <item handle="missions">Missions</item> 
     </parents> 
     <tag handle="holsbybrunn-sweden">Holsbybrunn, Sweden</tag> 
    </entry> 
    <entry id="22"> 
     <tag handle="home">Home</tag> 
    </entry> 
    <entry id="19"> 
     <tag handle="israel">Israel</tag> 
    </entry> 
    <entry id="30"> 
     <parents> 
      <item handle="ministry">Ministry</item> 
     </parents> 
     <tag handle="junior-high-ministry">Junior High ministry</tag> 
    </entry> 
    <entry id="47"> 
     <parents> 
      <item handle="missions">Missions</item> 
     </parents> 
     <tag handle="kampala-uganda">Kampala, Uganda</tag> 
    </entry> 
    <entry id="49"> 
     <parents> 
      <item handle="missions">Missions</item> 
     </parents> 
     <tag handle="lima-peru">Lima, Peru</tag> 
    </entry> 
    <entry id="64"> 
     <parents> 
      <item handle="" /> 
     </parents> 
     <tag handle="meetings">Meetings</tag> 
    </entry> 
    <entry id="32"> 
     <parents> 
      <item handle="ministry">Ministry</item> 
     </parents> 
     <tag handle="men-s-ministry">Men’s ministry</tag> 
    </entry> 
    <entry id="44"> 
     <parents> 
      <item handle="" /> 
     </parents> 
     <tag handle="ministry">Ministry</tag> 
    </entry> 
    <entry id="33"> 
     <tag handle="missions">Missions</tag> 
    </entry> 
    <entry id="54"> 
     <parents> 
      <item handle="the-islands-of-vanuatu">The Islands of Vanuatu</item> 
     </parents> 
     <tag handle="natanara-christian-fellowship">Natanara Christian Fellowship</tag> 
    </entry> 
    <entry id="50"> 
     <parents> 
      <item handle="missions">Missions</item> 
     </parents> 
     <tag handle="ouagadougou-burkina-faso">Ouagadougou, Burkina Faso</tag> 
    </entry> 
    <entry id="46"> 
     <parents> 
      <item handle="missions">Missions</item> 
     </parents> 
     <tag handle="the-islands-of-vanuatu">The Islands of Vanuatu</tag> 
    </entry> 
    <entry id="77"> 
     <parents> 
      <item handle="missions">Missions</item> 
     </parents> 
     <tag handle="villahermosa-mexico">Villahermosa, Mexico</tag> 
    </entry> 
    <entry id="27"> 
     <parents> 
      <item handle="ministry">Ministry</item> 
     </parents> 
     <tag handle="womens-ministry">Women's ministry</tag> 
    </entry> 
    <entry id="73"> 
     <parents> 
      <item handle="meetings">Meetings</item> 
     </parents> 
     <tag handle="worship">Worship</tag> 
    </entry> 
</tags> 

Answer 1

我不认为你需要一个项目的孩子被包裹在另一个<li>。

该转化（相当类似于@Alejandro的，但更简单，更短并且不需要任何参数在所有）：

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 
    <xsl:output omit-xml-declaration="yes" indent="yes"/> 

    <xsl:key name="kChildren" match="tag" 
       use="string(../parents/item/@handle)"/> 

    <xsl:key name="kChildren" match="tag" 
       use="../parents/item/@handle"/> 

    <xsl:template match="/" name="buildChildrenList"> 
     <xsl:variable name="vChildren" select= 
     "key('kChildren', string(@handle))"/> 

     <xsl:if test="$vChildren"> 
      <ul> 
       <xsl:apply-templates select="$vChildren"/> 
      </ul> 
     </xsl:if> 
    </xsl:template> 

    <xsl:template match="tag"> 
     <li> 
      <xsl:value-of select="."/> 
      <xsl:call-template name="buildChildrenList"/> 
     </li> 
    </xsl:template> 
</xsl:stylesheet> 

当在称为源XML文档应用：

<data> 
    <tags> 
     <section id="3" handle="tags">Tags</section> 
     <entry id="72"> 
      <parents> 
       <item handle="meetings">Meetings</item> 
      </parents> 
      <tag handle="bible-studies">Bible studies</tag> 
     </entry> 
     <entry id="51"> 
      <parents> 
       <item handle="missions">Missions</item> 
      </parents> 
      <tag handle="brazil">Brazil</tag> 
     </entry> 
     <entry id="31"> 
      <parents> 
       <item handle="ministry">Ministry</item> 
      </parents> 
      <tag handle="childrens-ministry">Children's ministry</tag> 
     </entry> 
     <entry id="28"> 
      <parents> 
       <item handle="ministry">Ministry</item> 
      </parents> 
      <tag handle="college-and-career-ministry">College and Career ministry</tag> 
     </entry> 
     <entry id="56"> 
      <parents> 
       <item handle="the-islands-of-vanuatu">The Islands of Vanuatu</item> 
      </parents> 
      <tag handle="fanafo-christian-fellowship">Fanafo Christian Fellowship</tag> 
     </entry> 
     <entry id="29"> 
      <parents> 
       <item handle="ministry">Ministry</item> 
      </parents> 
      <tag handle="high-school-ministry">High School ministry</tag> 
     </entry> 
     <entry id="48"> 
      <parents> 
       <item handle="missions">Missions</item> 
      </parents> 
      <tag handle="holsbybrunn-sweden">Holsbybrunn, Sweden</tag> 
     </entry> 
     <entry id="22"> 
      <tag handle="home">Home</tag> 
     </entry> 
     <entry id="19"> 
      <tag handle="israel">Israel</tag> 
     </entry> 
     <entry id="30"> 
      <parents> 
       <item handle="ministry">Ministry</item> 
      </parents> 
      <tag handle="junior-high-ministry">Junior High ministry</tag> 
     </entry> 
     <entry id="47"> 
      <parents> 
       <item handle="missions">Missions</item> 
      </parents> 
      <tag handle="kampala-uganda">Kampala, Uganda</tag> 
     </entry> 
     <entry id="49"> 
      <parents> 
       <item handle="missions">Missions</item> 
      </parents> 
      <tag handle="lima-peru">Lima, Peru</tag> 
     </entry> 
     <entry id="64"> 
      <parents> 
       <item handle="" /> 
      </parents> 
      <tag handle="meetings">Meetings</tag> 
     </entry> 
     <entry id="32"> 
      <parents> 
       <item handle="ministry">Ministry</item> 
      </parents> 
      <tag handle="men-s-ministry">Men’s ministry</tag> 
     </entry> 
     <entry id="44"> 
      <parents> 
       <item handle="" /> 
      </parents> 
      <tag handle="ministry">Ministry</tag> 
     </entry> 
     <entry id="33"> 
      <parents> 
       <item handle="" /> 
      </parents> 
      <tag handle="missions">Missions</tag> 
     </entry> 
     <entry id="54"> 
      <parents> 
       <item handle="the-islands-of-vanuatu">The Islands of Vanuatu</item> 
      </parents> 
      <tag handle="natanara-christian-fellowship">Natanara Christian Fellowship</tag> 
     </entry> 
     <entry id="50"> 
      <parents> 
       <item handle="missions">Missions</item> 
      </parents> 
      <tag handle="ouagadougou-burkina-faso">Ouagadougou, Burkina Faso</tag> 
     </entry> 
     <entry id="46"> 
      <parents> 
       <item handle="junior-high-ministry">Junior High ministry</item> 
       <item handle="missions">Missions</item> 
      </parents> 
      <tag handle="the-islands-of-vanuatu">The Islands of Vanuatu</tag> 
     </entry> 
     <entry id="77"> 
      <parents> 
       <item handle="missions">Missions</item> 
      </parents> 
      <tag handle="villahermosa-mexico">Villahermosa, Mexico</tag> 
     </entry> 
     <entry id="27"> 
      <parents> 
       <item handle="ministry">Ministry</item> 
      </parents> 
      <tag handle="womens-ministry">Women's ministry</tag> 
     </entry> 
     <entry id="73"> 
      <parents> 
       <item handle="meetings">Meetings</item> 
      </parents> 
      <tag handle="worship">Worship</tag> 
     </entry> 
    </tags> 
</data> 

产生想要的，正确的结果：

<ul> 
    <li>Home</li> 
    <li>Israel</li> 
    <li>Meetings 
     <ul> 
      <li>Bible studies</li> 
      <li>Worship</li> 
     </ul></li> 
    <li>Ministry 
     <ul> 
      <li>Children's ministry</li> 
      <li>College and Career ministry</li> 
      <li>High School ministry</li> 
      <li>Junior High ministry 
       <ul> 
        <li>The Islands of Vanuatu 
         <ul> 
          <li>Fanafo Christian Fellowship</li> 
          <li>Natanara Christian Fellowship</li> 
         </ul></li> 
       </ul></li> 
      <li>Men’s ministry</li> 
      <li>Women's ministry</li> 
     </ul></li> 
    <li>Missions 
     <ul> 
      <li>Brazil</li> 
      <li>Holsbybrunn, Sweden</li> 
      <li>Kampala, Uganda</li> 
      <li>Lima, Peru</li> 
      <li>Ouagadougou, Burkina Faso</li> 
      <li>The Islands of Vanuatu 
       <ul> 
        <li>Fanafo Christian Fellowship</li> 
        <li>Natanara Christian Fellowship</li> 
       </ul></li> 
      <li>Villahermosa, Mexico</li> 
     </ul></li> 
</ul> 

注意事项：此解决方案在tag有多个父项时正常工作。

说明：

1. 关键：

<xsl:key name="kChildren" match="tag" use="string(../parents/item/@handle)"/>

产生所有的 “孩子” 从第一的handle属性的字符串值（只）item孩子的他们的parents兄弟姐妹。这也涵盖了没有任何parents同胞（在这种情况下，键值是空字符串）的这样的tag元素。

.2。具有相同名称的第二个关键：

<xsl:key name="kChildren" match="tag" 
      use="../parents/item/@handle"/> 

由的item孩子自己parents兄弟中的任何handle属性值相匹配的tag。这使得有可能为所有“父母”列出tag，而不仅仅是第一个。

正如我们在这里看到的，具有多个具有相同名称的键的能力是一个非常强大和有用的功能。

Answer 2

编辑：多父母的关系增加。

该样式表：

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 
    <xsl:key name="kTagByParent" 
      match="tag" 
      use="../parents/item/@handle"/> 
    <xsl:template match="/" name="makeUL"> 
     <xsl:param name="pChilds" 
        select="*/*/entry[not(parents/item/@handle!='')]/tag"/> 
     <ul> 
      <xsl:apply-templates select="$pChilds"/> 
     </ul> 
    </xsl:template> 
    <xsl:template match="tag"> 
     <xsl:variable name="vChilds" select="key('kTagByParent',@handle)"/> 
     <li> 
      <xsl:value-of select="@handle"/> 
     </li> 
     <xsl:if test="$vChilds"> 
      <li> 
       <xsl:call-template name="makeUL"> 
        <xsl:with-param name="pChilds" select="$vChilds"/> 
       </xsl:call-template> 
      </li> 
     </xsl:if> 
    </xsl:template> 
</xsl:stylesheet> 

输出：

<ul> 
    <li>home</li> 
    <li>israel</li> 
    <li>meetings</li> 
    <li> 
     <ul> 
      <li>bible-studies</li> 
      <li>worship</li> 
     </ul> 
    </li> 
    <li>ministry</li> 
    <li> 
     <ul> 
      <li>childrens-ministry</li> 
      <li>college-and-career-ministry</li> 
      <li>high-school-ministry</li> 
      <li>junior-high-ministry</li> 
      <li>men-s-ministry</li> 
      <li>womens-ministry</li> 
     </ul> 
    </li> 
    <li>missions</li> 
    <li> 
     <ul> 
      <li>brazil</li> 
      <li>holsbybrunn-sweden</li> 
      <li>kampala-uganda</li> 
      <li>lima-peru</li> 
      <li>ouagadougou-burkina-faso</li> 
      <li>the-islands-of-vanuatu</li> 
      <li> 
       <ul> 
        <li>fanafo-christian-fellowship</li> 
        <li>natanara-christian-fellowship</li> 
       </ul> 
      </li> 
      <li>villahermosa-mexico</li> 
     </ul> 
    </li> 
</ul> 

随着新提供的输入在http://see.weareinto.com/525q，输出：

<ul> 
    <li>home</li> 
    <li>israel</li> 
    <li>meetings</li> 
    <li> 
     <ul> 
      <li>bible-studies</li> 
      <li>worship</li> 
     </ul></li> 
    <li>ministry</li> 
    <li> 
     <ul> 
      <li>childrens-ministry</li> 
      <li>college-and-career-ministry</li> 
      <li>high-school-ministry</li> 
      <li>junior-high-ministry</li> 
      <li> 
       <ul> 
        <li>the-islands-of-vanuatu</li> 
        <li> 
         <ul> 
          <li>fanafo-christian-fellowship</li> 
          <li>natanara-christian-fellowship</li> 
         </ul> 
        </li> 
       </ul> 
      </li> 
      <li>men-s-ministry</li> 
      <li>womens-ministry</li> 
     </ul></li> 
    <li>missions</li> 
    <li> 
     <ul> 
      <li>brazil</li> 
      <li>holsbybrunn-sweden</li> 
      <li>kampala-uganda</li> 
      <li>lima-peru</li> 
      <li>ouagadougou-burkina-faso</li> 
      <li>the-islands-of-vanuatu</li> 
      <li> 
       <ul> 
        <li>fanafo-christian-fellowship</li> 
        <li>natanara-christian-fellowship</li> 
       </ul> 
      </li> 
      <li>villahermosa-mexico</li> 
     </ul> 
    </li> 
</ul> 

注：节点设置密钥值，新表达来获得根。