Grouping within a group in XSLT 1.0

Question

Hi,
I have the below XML, from which I need to generate multiple groups within groups.
My sample XML:
<XmlContent>
<SalesInvoices2>
<NewDataSet>
<Table>
  <F1>ID</F1>
  <F2>NumberOfEntries</F2>
  <F3>JournalID</F3>
  <F4>Description</F4>
  <F5>TransactionID</F5>
  <F6>SourceID</F6>
  <F7>RecordID</F7>
  <F8>AccountID</F8>
  <F9>CreditAmount</F9>
  </Table>
<Table>
  <F1>1</F1>
  <F2>4</F2>
  <F3>10</F3>
  <F4>53-IX-90 Volkwagen Golf 1</F4>
  <F5>1</F5>
  <F6>4</F6>
  <F7>1</F7>
  <F8>100</F8>
  <F9>1000.28</F9>
  </Table>
<Table>
  <F1>1</F1>
  <F2>4</F2>
  <F3>10</F3>
  <F4>53-IX-90 Volkwagen Golf 1</F4>
  <F5>1</F5>
  <F6>4</F6>
  <F7>2</F7>
  <F8>101</F8>
  <F9>1089.87</F9>
  </Table>
<Table>
  <F1>1</F1>
  <F2>4</F2>
  <F3>10</F3>
  <F4>53-IX-90 Volkwagen Golf 1</F4>
  <F5>1</F5>
  <F6>4</F6>
  <F7>3</F7>
  <F8>102</F8>
  <F9>1090.87</F9>
  </Table>
<Table>
  <F1>1</F1>
  <F2>4</F2>
  <F3>10</F3>
  <F4>53-IX-90 Volkwagen Golf 1</F4>
  <F5>2</F5>
  <F6>6</F6>
  <F7>4</F7>
  <F8>103</F8>
  <F9>1091.87</F9>
  </Table>
<Table>
  <F1>1</F1>
  <F2>4</F2>
  <F3>10</F3>
  <F4>53-IX-90 Volkwagen Golf 1</F4>
  <F5>2</F5>
  <F6>6</F6>
  <F7>5</F7>
  <F8>104</F8>
  <F9>1092.87</F9>
  </Table>
<Table>
  <F1>3</F1>
  <F2>4</F2>
  <F3>12</F3>
  <F4>53-IX-90 Volkwagen Golf 5</F4>
  <F5>3</F5>
  <F6>5</F6>
  <F7>6</F7>
  <F8>105</F8>
  <F9>1093.87</F9>
  </Table>
<Table>
  <F1>3</F1>
  <F2>4</F2>
  <F3>12</F3>
  <F4>53-IX-90 Volkwagen Golf 5</F4>
  <F5>3</F5>
  <F6>5</F6>
  <F7>7</F7>
  <F8>106</F8>
  <F9>1094.87</F9>
  </Table>
<Table>
  <F1>3</F1>
  <F2>4</F2>
  <F3>12</F3>
  <F4>53-IX-90 Volkwagen Golf 5</F4>
  <F5>3</F5>
  <F6>5</F6>
  <F7>8</F7>
  <F8>107</F8>
  <F9>1095.87</F9>
  </Table>
<Table>
  <F1>3</F1>
  <F2>4</F2>
  <F3>12</F3>
  <F4>53-IX-90 Volkwagen Golf 5</F4>
  <F5>3</F5>
  <F6>5</F6>
  <F7>9</F7>
  <F8>108</F8>
  <F9>1096.87</F9>
  </Table>
<Table>
  <F1>3</F1>
  <F2>4</F2>
  <F3>12</F3>
  <F4>53-IX-90 Volkwagen Golf 5</F4>
  <F5>4</F5>
  <F6>7</F6>
  <F7>10</F7>
  <F8>109</F8>
  <F9>1097.87</F9>
  </Table>
<Table>
  <F1>3</F1>
  <F2>4</F2>
  <F3>12</F3>
  <F4>53-IX-90 Volkwagen Golf 5</F4>
  <F5>4</F5>
  <F6>7</F6>
  <F7>11</F7>
  <F8>110</F8>
  <F9>1098.87</F9>
  </Table>
</NewDataSet>
  </SalesInvoices2>
  </XmlContent>
Expected Output:
<!-- Journal- Repeats for each unique set of journal ID (F3) -->
 <Journal>    
      <JournalId>
        <xsl:value-of select="F3"/>
      </JournalId>
      <Description>
        <xsl:value-of select="F4"/>
      </Description>
      <!-- Transaction - Repeats for each unique set of transaction ID (F5) within Journal-->
      <Transaction>
        <TransactionId>
          <xsl:value-of select="F5"/>
        </TransactionId>
        <SourceID>
          <xsl:value-of select="F6"/>
        </SourceID>
        <!-- Line - Repeats within each Transaction for each Record ID(F7)  -->
        <Line>
          <LineNumber>
            <xsl:value-of select="F6"/>
          </LineNumber>
          <OrderDate>
            <xsl:value-of select="F7"/>
          </OrderDate>
          <ProductCode>
            <xsl:value-of select="F8"/>
          </ProductCode>
          <ProductDescription>
            <xsl:value-of select="F9"/>
          </ProductDescription>
        </Line>
      </Transaction>
 </Journal>
I had tried the below XSLT - which is not working as expected, however with slight changes to the approach, I am able to get the one outer loop , i.e., Journal would get repeated twice, but not other elements within that.
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"
>
  <xsl:output method="xml" indent="yes"/>
  <xsl:template match="/">
    <xsl:apply-templates select="XmlContent/SalesInvoices2"/>
  </xsl:template>
  <xsl:key name="EntryId" match="Table" use="F3" />
  <xsl:template match="NewDataSet">
    <NewDataSet>
      <xsl:apply-templates select="//Table[position()>1 and generate-id(.) = generate-id(key('EntryId', F3)[1])]" />
    </NewDataSet>
  </xsl:template>
  <xsl:template name="Table" match="Table">
    <NumberOfEntries>
        <xsl:value-of select="F2"/>
      </NumberOfEntries>
    <!-- Repeats - Journal -->
    <Journal>
      <JournalId>
        <xsl:value-of select="F3"/>
      </JournalId>
      <Description>
        <xsl:value-of select="F4"/>
      </Description>
      <!-- Repeats - Transaction -->
      <xsl:for-each select="key('EntryId', concat(F3,'|',F5[1]))">
        <Transaction>
          <TransactionId>
            <xsl:value-of select="F5"/>
          </TransactionId>
          <SourceID>
            <xsl:value-of select="F6"/>
          </SourceID>
          <!-- Repeats - Line -->
          <xsl:for-each select="key('EntryId', F3)">
            <Line>
              <LineNumber>
                <xsl:value-of select="F6"/>
              </LineNumber>
              <OrderDate>
                <xsl:value-of select="F7"/>
              </OrderDate>
              <ProductCode>
                <xsl:value-of select="F8"/>
              </ProductCode>
              <ProductDescription>
                <xsl:value-of select="F9"/>
              </ProductDescription>
            </Line>
       </xsl:for-each>
        </Transaction>
        </xsl:for-each>      
    </Journal>
   </xsl:template>
</xsl:stylesheet>
In the given sample - Journal should get repeated twice and within first Journal set of elements - I should get two transaction set of elements within the first set of transaction there should be 3 Line set of elements and in the second transaction set there
should be 2 Line set of elements.
Could you please help me on the solution, how I can have multiple groups and loop though the group and create another group within already constructed groups.
Rpaul

Answer 1

Hi,
>>how I can have multiple groups and loop though the group and create another group within already constructed groups.
For this statement, it is not clear to know what it represts, maybe this link is helpful:
http://www.microhowto.info/howto/group_xml_elements_by_key_using_xslt1.html