xml - 在 XSLT 中按月份和年份对 XML 节点进行分组

coder 2024-06-27 原文

更新

I'd like to appologize to the people who provided answers, I seem to have caused all sorts of confusion. To avoid complicating things even further, I've removed the previous code and have added new information. Read on...

我正在使用 Umbraco 开发自定义博客。 Umbraco 吐出 XML 作为输出，然后使用 XSLT 读取它。

XML的结构如下

博客
- 博客中心
  - 房间
    - 博客文章
    - 博客文章
    - 博客文章
  - 房间
    - 博客文章
- 博客中心
  - 房间
    - 博客文章

这是 XML 代码，我已经清理了很多代码以使其至少具有一定的可读性。

<Blog id="1078" parentID="1049" level="2" writerID="0" creatorID="0" nodeType="1073" template="1089" sortOrder="7" createDate="2010-09-27T14:11:04" updateDate="2010-10-12T16:59:12" nodeName="Blog" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078" isDoc="">
    <newPageTitle>The Lorem Ipsum Blog</newPageTitle>
    <BlogCentre id="1079" parentID="1078" level="3" writerID="0" creatorID="0" nodeType="1075" template="1076" sortOrder="1" createDate="2010-09-27T14:11:49" updateDate="2010-10-07T14:43:13" nodeName="Blog Centre 1" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079" isDoc="">
        <Room id="1081" parentID="1079" level="4" writerID="0" creatorID="0" nodeType="1077" template="0" sortOrder="1" createDate="2010-09-27T14:12:26" updateDate="2010-10-07T14:43:06" nodeName="Room 10" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081" isDoc="">
            <BlogPost id="1175" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1192" sortOrder="1" createDate="2010-10-07T14:51:48" updateDate="2010-10-12T21:30:53" nodeName="The first ever Blog post" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1175" isDoc="">
                <topicTitle>The first ever blog</topicTitle>
            </BlogPost>
            <BlogPost id="1180" parentID="1081" level="5" writerID="0" creatorID="3" nodeType="1087" template="1089" sortOrder="2" createDate="2010-10-08T15:52:20" updateDate="2010-10-12T16:57:00" nodeName="asdasd" writerName="Administrator" creatorName="ZX" path="-1,1049,1078,1079,1081,1180" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
            </BlogPost>
            <BlogPost id="1181" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="3" createDate="2010-10-08T17:50:19" updateDate="2010-10-12T11:40:37" nodeName="condimentum" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1181" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-09-01T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1194" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="4" createDate="2010-10-12T11:41:50" updateDate="2010-10-12T11:42:37" nodeName="Nam augue" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1194" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-08-05T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1195" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="5" createDate="2010-10-12T11:42:15" updateDate="2010-10-12T11:42:25" nodeName="consequat nunc" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1195" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-08-12T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1196" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="6" createDate="2010-10-12T12:05:57" updateDate="2010-10-12T12:08:40" nodeName="cursus congue" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1196" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2009-10-22T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1197" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="7" createDate="2010-10-12T12:08:54" updateDate="2010-10-12T12:09:24" nodeName="inceptos" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1197" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2009-11-19T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1198" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="8" createDate="2010-10-12T12:09:45" updateDate="2010-10-12T12:10:13" nodeName="inceptos himenaeos" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1198" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2009-12-16T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1199" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="9" createDate="2010-10-12T12:10:29" updateDate="2010-10-12T12:10:56" nodeName="consequat" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1199" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-01-13T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1200" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="10" createDate="2010-10-12T12:11:08" updateDate="2010-10-12T12:11:35" nodeName="himenaeos" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1200" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-02-09T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1201" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="11" createDate="2010-10-12T12:11:45" updateDate="2010-10-12T12:12:35" nodeName="cursus congue" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1201" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-04-22T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1202" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="12" createDate="2010-10-12T12:12:18" updateDate="2010-10-12T12:12:45" nodeName="pharetra" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1202" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-03-09T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1203" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="13" createDate="2010-10-12T12:13:05" updateDate="2010-10-12T12:13:27" nodeName="inceptos himenaeos" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1203" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-05-26T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1204" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="14" createDate="2010-10-12T12:13:36" updateDate="2010-10-12T12:13:56" nodeName="pharetra" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1204" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-06-11T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1205" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="15" createDate="2010-10-12T12:14:06" updateDate="2010-10-12T12:14:41" nodeName="Fusce augue" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1205" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-07-08T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1206" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="16" createDate="2010-10-12T12:14:52" updateDate="2010-10-12T12:15:19" nodeName="pharetra et fermentum" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1206" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-08-09T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1207" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="17" createDate="2010-10-12T12:15:31" updateDate="2010-10-12T12:15:51" nodeName="Fusce augue purus" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1207" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-09-14T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1208" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="18" createDate="2010-10-12T12:16:25" updateDate="2010-10-12T12:16:45" nodeName="Class aptent taciti" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1208" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-06-04T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1209" parentID="1081" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="19" createDate="2010-10-12T12:17:01" updateDate="2010-10-12T12:17:29" nodeName="Class aptent" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081,1209" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-06-21T00:00:00</archiveUnder>
            </BlogPost>
        </Room>
        <Room id="1082" parentID="1079" level="4" writerID="0" creatorID="0" nodeType="1077" template="0" sortOrder="2" createDate="2010-09-27T14:12:33" updateDate="2010-10-07T14:43:09" nodeName="Test Blog" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1082" isDoc="">
            <BlogPost id="1182" parentID="1082" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="1" createDate="2010-10-08T17:51:19" updateDate="2010-10-08T17:51:58" nodeName="Test Blog" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1082,1182" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
            </BlogPost>
        </Room>
        <Room id="1083" parentID="1079" level="4" writerID="0" creatorID="0" nodeType="1077" template="1089" sortOrder="3" createDate="2010-09-27T14:12:40" updateDate="2010-10-07T14:49:48" nodeName="Test Blog" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1083" isDoc="">
            <BlogPost id="1183" parentID="1083" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="1" createDate="2010-10-08T17:52:22" updateDate="2010-10-08T17:52:39" nodeName="Test Blog" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1083,1183" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
            </BlogPost>
        </Room>
    </BlogCentre>
    <BlogCentre id="1080" parentID="1078" level="3" writerID="0" creatorID="0" nodeType="1075" template="1076" sortOrder="2" createDate="2010-09-27T14:11:55" updateDate="2010-10-07T14:43:23" nodeName="Blog Centre 2" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1080" isDoc="">
        <Room id="1084" parentID="1080" level="4" writerID="0" creatorID="0" nodeType="1077" template="0" sortOrder="1" createDate="2010-09-27T14:12:45" updateDate="2010-10-07T14:43:17" nodeName="Room 1" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1080,1084" isDoc="">
            <BlogPost id="1184" parentID="1084" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="1" createDate="2010-10-08T17:53:05" updateDate="2010-10-08T17:53:29" nodeName="Blog Post 3" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1080,1084,1184" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
            </BlogPost>
        </Room>
        <Room id="1085" parentID="1080" level="4" writerID="0" creatorID="0" nodeType="1077" template="0" sortOrder="2" createDate="2010-09-27T14:12:50" updateDate="2010-10-07T14:43:19" nodeName="Room 2" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1080,1085" isDoc="">
            <BlogPost id="1185" parentID="1085" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="1" createDate="2010-10-08T17:53:51" updateDate="2010-10-08T17:54:15" nodeName="Blog Post 109" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1080,1085,1185" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
            </BlogPost>
        </Room>
        <Room id="1086" parentID="1080" level="4" writerID="0" creatorID="0" nodeType="1077" template="1089" sortOrder="3" createDate="2010-09-27T14:12:55" updateDate="2010-10-07T14:50:39" nodeName="Room 3" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1080,1086" isDoc="">
            <BlogPost id="1186" parentID="1086" level="5" writerID="0" creatorID="0" nodeType="1087" template="1089" sortOrder="1" createDate="2010-10-08T17:54:28" updateDate="2010-10-08T17:54:51" nodeName="Blog Post 123" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1080,1086,1186" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
            </BlogPost>
        </Room>
    </BlogCentre>
</Blog>

在 Umbraco XSLT 样式表中，有一个为当前页面传递的参数。

<xsl:param name="currentPage" />

这将始终是父节点 <Blog /> ，所以我们必须从这里开始。

您会注意到 <Blog /> 之间有中间节点和 <BlogPost />但我们想计算每个 <BlogCentre /> 中的博文总数和 <Room /> .

为此，我一直在使用

<xsl:for-each select="$currentPage/descendant::BlogPost" />

这会选择所有博客文章，而不考虑中心/房间。

现在我的要求是，按月份和年份(包括每个月的帖子计数)对这些博客帖子中的每一个进行分组。我想将它们分组的日期是属性 createDate UNLESS 有一个名为 <archiveUnder>some-date-here</archiveUnder> 的子节点.进一步解释

更新
我可以通过检查属性是否为空来轻松完成此部分，因此如果需要，解决方案可以省略此部分。

<BlogPost createDate="2010-10-08T17:52:22">
    <!-- no archiveUnder -->
</BlogPost>

^ 使用创建日期

<BlogPost createDate="2010-10-08T17:52:22">
    <archiveUnder>2010-10-08T17:51:19</archiveUnder>
</BlogPost>

^ 使用 archiveUnder

Finally, here's an example of the expected output.

<ul>
    <li>
        <h3>2010</h3>
        <ul>
            <li>September (4)</li>
            <li>August (2)</li>
            <li>June (5)</li> <!-- No July because there are no posts -->
        </ul>
    </li>
    <li>
        <h3>2009</h3>
        <ul>
            <li>April (4)</li>
            <li>March (2)</li>
            <li>January (5)</li> <!-- No February because there are no posts -->
        </ul>
    </li>
</ul>

最佳答案

此转换(141 行，但为了便于阅读而格式化):

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

 <xsl:param name="currentPage" select="/*"/>

 <m:months>
   <m>January</m>
   <m>February</m>
   <m>March</m>
   <m>April</m>
   <m>May</m>
   <m>June</m>
   <m>July</m>
   <m>August</m>
   <m>September</m>
   <m>October</m>
   <m>November</m>
   <m>December</m>
 </m:months>

 <xsl:variable name="vMonthNames" select=
  "document('')/*/m:months/*"/>

 <xsl:key name="kPostsByYear" match="BlogPost"
  use="substring-before(
                    concat(archiveUnder,
                           @createDate[not(archiveUnder)]
                           ),
                    '-'
                        )"/>

 <xsl:key name="kPostsByYearMonth" match="BlogPost"
  use="substring(
                 concat(archiveUnder,
                        @createDate[not(archiveUnder)]
                        ),
                 1,7
                 )"/>

 <xsl:template match="/">
   <ul>
    <xsl:apply-templates mode="year" select=
     "$currentPage/*/*/BlogPost
          [generate-id()
          =
           generate-id(key('kPostsByYear',
                       substring-before(
                       concat(archiveUnder,
                              @createDate[not(archiveUnder)]
                              ),
                              '-'
                                         )
                            )[1]
                       )
              ]
     ">
       <xsl:sort order="descending" select=
        "substring-before(
                    concat(archiveUnder,
                           @createDate[not(archiveUnder)]
                           ),

                           '-'
                          )
        "/>
   </xsl:apply-templates>
  </ul>
 </xsl:template>

 <xsl:template match="BlogPost" mode="year">
  <xsl:variable name="vYear" select=
    "substring-before(
                     concat(archiveUnder,
                            @createDate[not(archiveUnder)]
                            ),

                      '-')
    "/>
  <xsl:variable name="vyearBlogs"
                select="key('kPostsByYear',$vYear)"/>
  <li>
    <h3><xsl:value-of select="$vYear"/></h3>
    <ul>
      <xsl:apply-templates mode="month" select=
          "$vyearBlogs
             [generate-id()
             =
              generate-id(key('kPostsByYearMonth',
                          substring(
                        concat(archiveUnder,
                               @createDate[not(archiveUnder)]
                               ),

                        1,7
                                    )
                              )[1]
                          )
              ]
          ">
         <xsl:sort order="descending" select=
            "substring(
                 concat(archiveUnder,
                        @createDate[not(archiveUnder)]
                        ),

                 6,2)"
         />
      </xsl:apply-templates>
   </ul>
  </li>
 </xsl:template>

 <xsl:template match="BlogPost" mode="month">
  <xsl:variable name="vMonth" select=
   "substring(
        concat(archiveUnder,
               @createDate[not(archiveUnder)]
               ),

        6,2)"/>

  <xsl:variable name="vmonthsBlogs" select=
    "key('kPostsByYearMonth',
         substring(
              concat(archiveUnder,
                     @createDate[not(archiveUnder)]
                     ),

              1,7)
         )"/>
  <li><xsl:value-of select=
        "concat($vMonthNames[position()=$vMonth],
                ' (',
                count($vmonthsBlogs),
                ')'
                )"/>
  </li>
 </xsl:template>
</xsl:stylesheet>

应用于提供的示例 XML 文档时(我们正在访问 $currentPage <xsl:param> 之外的每个节点，因为这将在真正的 Umbraco 案例中)，格式化以提高可读性和每个 createDate 的 BlogPost 属性移动在元素名称后的第一行:

<Blog id="1078" parentID="1049" level="2" writerID="0" creatorID="0" nodeType="1073" template="1089" sortOrder="7" createDate="2010-09-27T14:11:04" updateDate="2010-10-12T16:59:12" nodeName="Blog" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078" isDoc="">
    <newPageTitle>The Lorem Ipsum Blog</newPageTitle>
    <BlogCentre id="1079" parentID="1078" level="3" writerID="0" creatorID="0" nodeType="1075" template="1076" sortOrder="1" createDate="2010-09-27T14:11:49" updateDate="2010-10-07T14:43:13" nodeName="Blog Centre 1" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079" isDoc="">
        <Room id="1081" parentID="1079" level="4" writerID="0" creatorID="0" nodeType="1077" template="0" sortOrder="1" createDate="2010-09-27T14:12:26" updateDate="2010-10-07T14:43:06" nodeName="Room 10" writerName="Administrator" creatorName="Administrator" path="-1,1049,1078,1079,1081" isDoc="">
            <BlogPost id="1175" parentID="1081" level="5"
            createDate="2010-10-07T14:51:48"
            writerID="0" creatorID="0" nodeType="1087"
            template="1192" sortOrder="1"
            updateDate="2010-10-12T21:30:53"
            nodeName="The first ever Blog post"
            writerName="Administrator"
            creatorName="Administrator"
            path="-1,1049,1078,1079,1081,1175" isDoc="">
                <topicTitle>The first ever blog</topicTitle>
                <archiveUnder/>
            </BlogPost>
            <BlogPost id="1180" parentID="1081"
             createDate="2010-10-08T15:52:20"
             level="5" writerID="0" creatorID="3"
             nodeType="1087" template="1089"
             sortOrder="2"
             updateDate="2010-10-12T16:57:00" nodeName="asdasd"
             writerName="Administrator" creatorName="ZX"
             path="-1,1049,1078,1079,1081,1180" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
            </BlogPost>
            <BlogPost id="1181" parentID="1081" level="5"
             createDate="2010-10-08T17:50:19"
             writerID="0" creatorID="0" nodeType="1087"
             template="1089" sortOrder="3"
             updateDate="2010-10-12T11:40:37"
             nodeName="condimentum"
             writerName="Administrator"
             creatorName="Administrator"
             path="-1,1049,1078,1079,1081,1181" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-09-01T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1194" parentID="1081" level="5"
            createDate="2010-10-12T11:41:50"
            writerID="0" creatorID="0" nodeType="1087"
            template="1089" sortOrder="4"
            updateDate="2010-10-12T11:42:37"
            nodeName="Nam augue" writerName="Administrator"
            creatorName="Administrator"
            path="-1,1049,1078,1079,1081,1194" isDoc="">
                <topicTitle>Lorem Ipsum</topicTitle>
                <archiveUnder>2010-08-05T00:00:00</archiveUnder>
            </BlogPost>
            <BlogPost id="1195" parentID="1081" level="5"
            createDate="2010-10-12T11:42:15"
            writerID="0" creatorID="0" nodeType="1087"
            template="1089" sortOrder="5"
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产生想要的、正确的结果:

<ul>
   <li>
      <h3>2010</h3>
      <ul>
         <li>October (7)</li>
         <li>September (2)</li>
         <li>August (3)</li>
         <li>July (1)</li>
         <li>June (3)</li>
         <li>May (1)</li>
         <li>April (1)</li>
         <li>March (1)</li>
         <li>February (1)</li>
         <li>January (1)</li>
      </ul>
   </li>
   <li>
      <h3>2009</h3>
      <ul>
         <li>December (1)</li>
         <li>November (1)</li>
         <li>October (1)</li>
      </ul>
   </li>
</ul>

请注意:

使用 Muenchian Grouping -- 既用于确定不同的年份，也用于确定每年的不同月份。
使用表达式在 createDate 属性和 archiveUnder 子属性之间选择日期:

concat(archiveUnder, @createDate[not(archiveUnder)])

如果 @createDate 缺失或为空，此串联仅选择 archiveUnder。

.3。 即使元素的日期未排序，转换也会产生正确的结果。

关于xml - 在 XSLT 中按月份和年份对 XML 节点进行分组，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/3910303/

XSLT xml 34 Administrator gt date group-by umbraco

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