XML/XSLT stylesheet/sum

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Версия от 11:26, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Create a table with calculation

File: Data.xml
<?xml version="1.0"?>
<Orders CustomerId="1">
  <Order OrderId="ord1" OrderDate="2008-09-01">
    <Items>
      <Item ItemId="a1" Quantity="1" ItemPrice="2.00"></Item>
      <Item ItemId="b2" Quantity="1" ItemPrice="3.00"></Item>
      <Item ItemId="c3" Quantity="2" ItemPrice="1.50"></Item>
    </Items>
  </Order>
  <Order OrderId="ord2" OrderDate="2006-10-30">
    <Items>
      <Item ItemId="a1" Quantity="2" ItemPrice="2.00"></Item>
      <Item ItemId="d4" Quantity="2" ItemPrice="1.00"></Item>
      <Item ItemId="e5" Quantity="1" ItemPrice="3.50"></Item>
      <Item ItemId="h8" Quantity="1" ItemPrice="5.00"></Item>
    </Items>
  </Order>
</Orders>
File: Transform.xslt
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="2.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:xs="http://www.w3.org/2001/XMLSchema"
  xmlns:udf="http://wbex.ru/XSLT/functions">
  <xsl:template match="/">
    <html>
      <body>
        <h3>
          Customer
          <xsl:value-of select="Orders/@CustomerId" />
        </h3>
        <table>
          <thead>
            <tr>
              <th>Order ID</th>
              <th>Order Date</th>
              <th>Order Total</th>
            </tr>
          </thead>
          <tbody>
            <xsl:apply-templates select="Orders/Order">
              <xsl:sort
                select="translate(@OrderDate, "-", "")" data-type="number" />
            </xsl:apply-templates>
          </tbody>
        </table>
      </body>
    </html>
  </xsl:template>
  <xsl:template match="Order">
    <tr>
      <td>
        <xsl:value-of select="@OrderId" />
      </td>
      <td>
        <xsl:value-of select="@OrderDate" />
      </td>
      <td>
        <xsl:value-of select="udf:get-order-total(Items)" />
      </td>
    </tr>
  </xsl:template>
  <xsl:function name="udf:get-order-total" as="xs:double">
    <xsl:param name="items" />
    <xsl:value-of
      select="sum(for $item in $items/Item return $item/@Quantity * $item/@ItemPrice)" />
  </xsl:function>
</xsl:stylesheet>
Output:
<html xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:udf="http://wbex.ru/XSLT/functions">
   <body>
      <h3>
                   Customer
                   1
      </h3>
      <table>
         <thead>
            <tr>
               <th>Order ID</th>
               <th>Order Date</th>
               <th>Order Total</th>
            </tr>
         </thead>
         <tbody>
            <tr>
               <td>ord2</td>
               <td>2006-10-30</td>
               <td>14.5</td>
            </tr>
            <tr>
               <td>ord1</td>
               <td>2008-09-01</td>
               <td>8</td>
            </tr>
         </tbody>
      </table>
   </body>
</html>