Question

我是XSL的新手，并且使用一个非常大而复杂的数据库而且我对某些事情感到难过。

虽然我无法讨论所有细节或分享XML的细节，但我可以告诉您，它是由原材料组成的其他复杂系统组成的复杂系统的细分。有很多层信息。

在这种情况下，我需要提取系统中子组件的一种特定类型子组件的描述。在子组件中多次使用这些子组件是可能的，也是典型的，并且子组件也可以在系统中多次使用。

在这种情况下，如果发生重复，我需要忽略它。此外，如果存在唯一值，但发生在错误的位置，则还需要忽略它。

当找到这样的项目时，我正在提取其描述。（请注意，虽然我正在提取描述，但我并不关心描述是唯一的，只关注与之关联的项目。）

我正在使用以下代码（请参阅下面的XSL）深入查看一些最基本的子组件，忽略错误进程中出现的项目，除了在正确的进程中出现的重复项并且满足其他要求。

正如您将看到的，我将设置稍后调用的变量的值以显示在表格单元格中。这个过程也运作良好。

我只需要知道如何修改此代码以过滤重复项。

我尝试了多种<xsl:key>和preceding方法，包括 Meunchian Groupings 的几种变体，但到目前为止还没有任何方法。（公平地说，我并不是100％确定我已经正确输入了它们，虽然我觉得我做了。）在某些情况下，这样的公式没有返回任何结果（它们会导致表格中出现空白单元格。）而在其他情况下它们似乎会擦除他们下面的代码块。（或者，它们会创建一个无限大的空白单元格，填充页面的其余部分。）

我们将非常感谢任何建议！

XML

<design>
    <operation>
    <operation uom="" trantag="operation">10</operation>
        <layer>
            <layerno>10</layerno>
            <process trntag="NOT_SINGLES">NOT_SINGLES</process>
            <bom>
                <position>10</position>
                <bomitem uom="" trantag="item">ITEM1</bomitem>
                <description>DESCRIPTION_I1</description>
            </bom>
            <bom>
                <position>20</position>
                <bomitem uom="" trantag="item">X1</bomitem>
                <description>DESCRIPTION_X1</description>
            </bom>
        </layer>
    </operation>
    <subdesign>
        <design>
            <operation>
                <operation uom="" trantag="operation">10</operation>
                    <layer>
                        <layerno>10</layerno>
                        <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">X2</bomitem>
                            <description>DESCRIPTION_X2</description>
                        </bom>
                        <bom>
                            <position>20</position>
                            <bomitem uom="" trantag="item">X3</bomitem>
                            <description>DESCRIPTION_X3</description>
                        </bom>
                        <bom>
                            <position>30</position>
                            <bomitem uom="" trantag="item">ITEM1</bomitem>
                            <description>DESCRIPTION_I1</description>
                        </bom>
                    </layer>
                    <layer>
                        <layerno>20</layerno>
                        <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">X4</bomitem>
                            <description>DESCRIPTION_X4</description>
                        </bom>
                    </layer>
            </operation>
            <operation>
                <operation uom="" trantag="operation">20</operation>
                    <layer>
                        <layerno>10</layerno>
                        <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">X3</bomitem>
                            <description>DESCRIPTION_X3</description>
                        </bom>
                    </layer>
                    <layer>
                        <layerno>20</layerno>
                        <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">X5</bomitem>
                            <description>DESCRIPTION_X5</description>
                        </bom>
                    </layer>
            </operation>
        </design>
        <design>
            <operation>
                <operation uom="" trantag="operation">10</operation>
                    <layer>
                        <layerno>10</layerno>
                        <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">X2</bomitem>
                            <description>DESCRIPTION_X2</description>
                        </bom>
                        <bom>
                            <position>20</position>
                            <bomitem uom="" trantag="item">X6</bomitem>
                            <description>DESCRIPTION_X6</description>
                        </bom>
                        <bom>
                            <position>30</position>
                            <bomitem uom="" trantag="item">ITEM1</bomitem>
                            <description>DESCRIPTION_I1</description>
                        </bom>
                    </layer>
                    <layer>
                        <layerno>20</layerno>
                        <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">X7</bomitem>
                            <description>DESCRIPTION_X7</description>
                        </bom>
                    </layer>
            </operation>
            <operation>
                <operation uom="" trantag="operation">20</operation>
                    <layer>
                        <layerno>10</layerno>
                        <process trntag="SINGLES">SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">ITEM1</bomitem>
                            <description>DESCRIPTION_I1</description>
                        </bom>
                    </layer>
                    <layer>
                        <layerno>20</layerno>
                        <process trntag="SINGLES">SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">X5</bomitem>
                            <description>DESCRIPTION_X5</description>
                        </bom>
                    </layer>
            </operation>
            <operation>
                <operation uom="" trantag="operation">30</operation>
                    <layer>
                        <layerno>10</layerno>
                        <process trntag="SINGLES">SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">ITEM2</bomitem>
                            <description>DESCRIPTION_I2</description>
                        </bom>
                    </layer>
                    <layer>
                        <layerno>20</layerno>
                        <process trntag="SINGLES">SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">X8</bomitem>
                            <description>DESCRIPTION_X8</description>
                        </bom>
                    </layer>
            </operation>
            <operation>
                <operation uom="" trantag="operation">40</operation>
                    <layer>
                        <layerno>10</layerno>
                        <process trntag="SINGLES">SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">ITEM1</bomitem>
                            <description>DESCRIPTION_I1</description>
                        </bom>
                    </layer>
                    <layer>
                        <layerno>20</layerno>
                        <process trntag="SINGLES">SINGLES</process>
                        <bom>
                            <position>10</position>
                            <bomitem uom="" trantag="item">X1</bomitem>
                            <description>DESCRIPTION_X1</description>
                        </bom>
                    </layer>
            </operation>
        </design>
    </subdesign>
</design>

XSL

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
                xmlns:oldxsl="http://www.w3.org/TR/WD-xsl"
                xmlns:msxsl="urn:schemas-microsoft-com:xslt"
                xmlns:local="#local-functions">

<xsl:template match="/">

<html>

<xsl:variable name="result">

    <xsl:for-each select="/design/subdesign/design/operation/layer[process = 'SINGLES']">

        <xsl:variable name="test" select="bom/bomitem"/>
            <xsl:if test="starts-with($test,'ITEM')">
                <xsl:variable name="print" select="bom/description"/>
                    <xsl:value-of select="$print"/><xsl:text><![CDATA[<br />]]></xsl:text>
            </xsl:if>

    </xsl:for-each>

</xsl:variable>

<table style="width:4.0in; border:0; table-layout: fixed">

    <tr>
        <td colspan="3" style="vertical-align: top;">
            Result :
        </td>
        <td colspan="5">
            <xsl:value-of select="$result"/>
        </td>
    </tr>

</table>

</html>

</xsl:template>

</xsl:stylesheet>

这将错误地输出：

Result:        DESCRIPTION_I1
               DESCRIPTION_I2
               DESCRIPTION_I1

所需的结果是：

Result:        DESCRIPTION_I1
               DESCRIPTION_I2

感谢。

我正在使用XLST 1.0。

Answer 1

我调整了您的示例XSLT并且能够获得正确的结果。希望您能够根据实际代码进行调整。（我不太擅长Muenchian分组;我通常在2.0中使用xsl:for-each-group。）

XML输入

<design>
    <operation>
        <operation uom="" trantag="operation">10</operation>
        <layer>
            <layerno>10</layerno>
            <process trntag="NOT_SINGLES">NOT_SINGLES</process>
            <bom>
                <position>10</position>
                <bomitem uom="" trantag="item">ITEM1</bomitem>
                <description>DESCRIPTION_I1</description>
            </bom>
            <bom>
                <position>20</position>
                <bomitem uom="" trantag="item">X1</bomitem>
                <description>DESCRIPTION_X1</description>
            </bom>
        </layer>
    </operation>
    <subdesign>
        <design>
            <operation>
                <operation uom="" trantag="operation">10</operation>
                <layer>
                    <layerno>10</layerno>
                    <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">X2</bomitem>
                        <description>DESCRIPTION_X2</description>
                    </bom>
                    <bom>
                        <position>20</position>
                        <bomitem uom="" trantag="item">X3</bomitem>
                        <description>DESCRIPTION_X3</description>
                    </bom>
                    <bom>
                        <position>30</position>
                        <bomitem uom="" trantag="item">ITEM1</bomitem>
                        <description>DESCRIPTION_I1</description>
                    </bom>
                </layer>
                <layer>
                    <layerno>20</layerno>
                    <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">X4</bomitem>
                        <description>DESCRIPTION_X4</description>
                    </bom>
                </layer>
            </operation>
            <operation>
                <operation uom="" trantag="operation">20</operation>
                <layer>
                    <layerno>10</layerno>
                    <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">X3</bomitem>
                        <description>DESCRIPTION_X3</description>
                    </bom>
                </layer>
                <layer>
                    <layerno>20</layerno>
                    <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">X5</bomitem>
                        <description>DESCRIPTION_X5</description>
                    </bom>
                </layer>
            </operation>
        </design>
        <design>
            <operation>
                <operation uom="" trantag="operation">10</operation>
                <layer>
                    <layerno>10</layerno>
                    <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">X2</bomitem>
                        <description>DESCRIPTION_X2</description>
                    </bom>
                    <bom>
                        <position>20</position>
                        <bomitem uom="" trantag="item">X6</bomitem>
                        <description>DESCRIPTION_X6</description>
                    </bom>
                    <bom>
                        <position>30</position>
                        <bomitem uom="" trantag="item">ITEM1</bomitem>
                        <description>DESCRIPTION_I1</description>
                    </bom>
                </layer>
                <layer>
                    <layerno>20</layerno>
                    <process trntag="NOT_SINGLES">NOT_SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">X7</bomitem>
                        <description>DESCRIPTION_X7</description>
                    </bom>
                </layer>
            </operation>
            <operation>
                <operation uom="" trantag="operation">20</operation>
                <layer>
                    <layerno>10</layerno>
                    <process trntag="SINGLES">SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">ITEM1</bomitem>
                        <description>DESCRIPTION_I1</description>
                    </bom>
                </layer>
                <layer>
                    <layerno>20</layerno>
                    <process trntag="SINGLES">SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">X5</bomitem>
                        <description>DESCRIPTION_X5</description>
                    </bom>
                </layer>
            </operation>
            <operation>
                <operation uom="" trantag="operation">30</operation>
                <layer>
                    <layerno>10</layerno>
                    <process trntag="SINGLES">SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">ITEM2</bomitem>
                        <description>DESCRIPTION_I2</description>
                    </bom>
                </layer>
                <layer>
                    <layerno>20</layerno>
                    <process trntag="SINGLES">SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">X8</bomitem>
                        <description>DESCRIPTION_X8</description>
                    </bom>
                </layer>
            </operation>
            <operation>
                <operation uom="" trantag="operation">40</operation>
                <layer>
                    <layerno>10</layerno>
                    <process trntag="SINGLES">SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">ITEM1</bomitem>
                        <description>DESCRIPTION_I1</description>
                    </bom>
                </layer>
                <layer>
                    <layerno>20</layerno>
                    <process trntag="SINGLES">SINGLES</process>
                    <bom>
                        <position>10</position>
                        <bomitem uom="" trantag="item">X1</bomitem>
                        <description>DESCRIPTION_X1</description>
                    </bom>
                </layer>
            </operation>
        </design>
    </subdesign>
</design>

XSLT 1.0

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

  <xsl:key name="desc" match="/design/subdesign/design/operation/layer[process = 'SINGLES']/bom[starts-with(bomitem,'ITEM')]" use="description"/>

  <xsl:template match="/">
    <html>
      <table style="width:4.0in; border:0; table-layout: fixed">
        <tr>
          <td colspan="3" style="vertical-align: top;"> Result : </td>
          <td colspan="5">
            <xsl:for-each select="/design/subdesign/design/operation/layer[process = 'SINGLES']/bom[starts-with(bomitem,'ITEM')][count(. | key('desc', description)[1]) = 1]">
              <xsl:value-of select="description"/>
              <br/>
            </xsl:for-each>
          </td>
        </tr>
      </table>
    </html>
  </xsl:template>

</xsl:stylesheet>

HTML输出

＆＃13;

<html>
   <table style="width:4.0in; border:0; table-layout: fixed">
      <tr>
         <td colspan="3" style="vertical-align: top;"> Result : </td>
         <td colspan="5">DESCRIPTION_I1<br>DESCRIPTION_I2<br></td>
      </tr>
   </table>
</html

＆＃13;

修改

使用xsl:variable ...
的示例
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output indent="yes"/> <xsl:key name="desc" match="/design/subdesign/design/operation/layer[process = 'SINGLES']/bom[starts-with(bomitem,'ITEM')]" use="description"/> <xsl:template match="/"> <xsl:variable name="results"> <xsl:for-each select="/design/subdesign/design/operation/layer[process = 'SINGLES']/bom[starts-with(bomitem,'ITEM')][count(. | key('desc', description)[1]) = 1]"> <xsl:value-of select="description"/> <br/> </xsl:for-each> </xsl:variable> <html> <table style="width:4.0in; border:0; table-layout: fixed"> <tr> <td colspan="3" style="vertical-align: top;"> Result : </td> <td colspan="5"> <xsl:copy-of select="$results"/> </td> </tr> </table> </html> </xsl:template> </xsl:stylesheet>

Answer 2

我的意思是尽快在这里发布，但是被置之不理。这是对我有用的解决方案：

正如Daniel所建议的，并且通过跟踪和错误确定，score <Number> | miliseconds <Number> 100 | 10000 100 | 20000 100 | 99999 50 | 500 50 | 1000 50 | 2000不能包含在xsl:key标记内（正如我最初尝试的那样），也不能在{HTML内声明1}}标签。

将xsl:template移到样式表的最开头，使用它来帮助确定xsl:key的值，然后在xsl:variable部分中调用该值，能够达到预期的效果。

虽然这确实需要我重写几乎整个样式表，但它可以正常工作，最终结果更有条理，将来更容易扩展。

<强> XSL：

HTML

HTML输出：

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
    xmlns:oldxsl="http://www.w3.org/TR/WD-xsl"
    xmlns:msxsl="urn:schemas-microsoft-com:xslt"
    xmlns:local="#local-functions"
    xmlns:date="http://exslt.org/dates-and-times">

<!-- KEYS -->

    <xsl:key name="desc" match="/design/subdesign/design/operation/layer[process = 'SINGLES']/bom[starts-with(bomitem,'ITEM')]" use="description"/>

<!-- XSL & VARIABLES -->

<xsl:template match="/">

    <xsl:variable name="result">
        <xsl:for-each select="/design/subdesign/design/operation/layer[process = 'SINGLES']/bom[starts-with(bomitem,'ITEM')][count(. | key('desc', description)[1]) = 1]">
            <xsl:value-of select="description"/><br/>
        </xsl:for-each>
    </xsl:variable>

<!-- HTML -->

<html>

    <table style="width:4.0in; border:0; table-layout: fixed">

        <tr>
            <td colspan="3" style="vertical-align: top;">
                Result :
            </td>
            <td colspan="5">
                <xsl:value-of select="$result"/>
            </td>
        </tr>

    </table>

</html>
</xsl:template>
</xsl:stylesheet>

再次感谢，Daniel！

每个唯一值的XSL

2 个答案: