Question

        Source Xml : 
    <Lot>
            <LotDetails>
                <GCode>Ship</GCode>
                <ProductQuantity>2</ProductQuantity>
            </LotDetails
            <LotDetails>
                <GCode>Reject</GCode>
                <ProductQuantity>4</ProductQuantity>
            </LotDetails>
            <LotDetails>
                <GCode>Gross</GCode>
                <ProductQuantity>3</ProductQuantity>
            </LotDetails>
            <LotDetails>
                <GCode>Acceptable</GCode>
                <ProductQuantity>5</ProductQuantity>
            </LotDetails>
       </Lot> 
       <Lot>

         <LotDetails>
                <GCode>Ship</GCode>
                <ProductQuantity>2</ProductQuantity>
            </LotDetails
            <LotDetails>
                <GCode>Reject</GCode>
                <ProductQuantity>4</ProductQuantity>
            </LotDetails>
            <LotDetails>
                <GCode>Gross</GCode>
                <ProductQuantity>3</ProductQuantity>
            </LotDetails>
            <LotDetails>
                <GCode>Acceptable1</GCode>
                <ProductQuantity>5</ProductQuantity>
            </LotDetails>
       </Lot> 

      <LotDetails>
                <GCode>Ship1</GCode>
                <ProductQuantity>2</ProductQuantity>
            </LotDetails
            <LotDetails>
                <GCode>Reject</GCode>
                <ProductQuantity>4</ProductQuantity>
            </LotDetails>
            <LotDetails>
                <GCode>Gross</GCode>
                <ProductQuantity>3</ProductQuantity>
            </LotDetails>
            <LotDetails>
                <GCode>Acceptable1</GCode>
                <ProductQuantity>5</ProductQuantity>
            </LotDetails>
       </Lot> 
        TargetXml Field :

    <Lot><LotQty>5</LotQty></Lot>
   <Lot> <LotQty>2</LotQty></Lot>
    <Lot><LotQty>3</LotQty> </Lot> 

        Here the condition to check to map the target field is :

            If LotDetails/GCode = "Acceptable" and the corresponding ProductQuantity  not (null and zero)

            <LotQty> --> 5 [taken from the corresponding ProductQuantity ]

            else if LotDetails/GCode = "Ship" and the corresponding ProductQuantity not (null and zero)

            <LotQty> --> 2

            else if LotDetails/GCode = "Gross" and the corresponding ProductQuantity not (null and zero)

            <LotQty> --> 3

            else 

            <LotQty> --> 0

        Here the LotQty should happen only once for a particular iteration of <Lot> based on any of the conditions 
        if any first condition is satisfied then   the map  LotQTY from the corresponding ProductQuantity ?
When we use for each LotDetails- we get the qty correctly but it produces multiple results for LotQTY  inside each loop as below 
 <Lot>
        <LotQty>5</LotQty>
        <LotQty>2</LotQty>
        <LotQty>3</LotQty> 
 </Lot>

   <Lot>     
        <LotQty>2</LotQty>
        <LotQty>3</LotQty> 
 </Lot>
  <Lot>   
        <LotQty>3</LotQty> 
 </Lot> 

When i only use IF conditions with out for each  the qty is always selected from the first matched condition 
<Lot><LotQty>5</LotQty></Lot>
 <Lot> <LotQty>5</LotQty></Lot>
  <Lot><LotQty>5</LotQty> </Lot


What i need is as below  is only one lotQty for each lot based on first satisfied condition with the corresponding qty 


  <Lot><LotQty>5</LotQty></Lot>
   <Lot><LotQty>2</LotQty></Lot>
    <Lot><LotQty>3</LotQty></Lot>

Not sure on the template mach usage a being a beginner on xslt usage

如何根据相应的LotDetails / GCode获取正确的LotDetails / ProductQuantity而不使用a？从if中动态传递满意条件的任何方法，并使用该LotDetails选择正确的ProductQuantity或从当前节点中选择ProductQuantity？

  Please let know xslt experts on the best way to do this ?

Answer 1

考虑以下示例：

<强> XML

<Lots>
    <Lot>
        <LotDetails>
            <GCode>Ship</GCode>
            <ProductQuantity>2</ProductQuantity>
        </LotDetails>
        <LotDetails>
            <GCode>Reject</GCode>
            <ProductQuantity>4</ProductQuantity>
        </LotDetails>
        <LotDetails>
            <GCode>Gross</GCode>
            <ProductQuantity>3</ProductQuantity>
        </LotDetails>
        <LotDetails>
            <GCode>Acceptable</GCode>
            <ProductQuantity>5</ProductQuantity>
        </LotDetails>
    </Lot>
    <Lot>
        <LotDetails>
            <GCode>Ship</GCode>
            <ProductQuantity>2</ProductQuantity>
        </LotDetails>
        <LotDetails>
            <GCode>Reject</GCode>
            <ProductQuantity>4</ProductQuantity>
        </LotDetails>
        <LotDetails>
            <GCode>Gross</GCode>
            <ProductQuantity>3</ProductQuantity>
        </LotDetails>
        <LotDetails>
            <GCode>Acceptable</GCode>
        </LotDetails>
    </Lot>
    <Lot>
        <LotDetails>
            <GCode>Ship</GCode>
        </LotDetails>
        <LotDetails>
            <GCode>Reject</GCode>
            <ProductQuantity>4</ProductQuantity>
        </LotDetails>
        <LotDetails>
            <GCode>Gross</GCode>
            <ProductQuantity>3</ProductQuantity>
        </LotDetails>
        <LotDetails>
            <GCode>Acceptable</GCode>
            <ProductQuantity>0</ProductQuantity>
        </LotDetails>
    </Lot>
</Lots>

XSLT 1.0

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>

<xsl:template match="/Lots">
    <xsl:copy>
        <xsl:for-each select="Lot">
            <xsl:copy>
                <Quantity>
                    <xsl:choose>
                        <xsl:when test="LotDetails[GCode='Acceptable' and ProductQuantity > 0]">
                            <xsl:value-of select="LotDetails[GCode='Acceptable']/ProductQuantity"/>
                        </xsl:when>
                        <xsl:when test="LotDetails[GCode='Ship' and ProductQuantity > 0]">
                            <xsl:value-of select="LotDetails[GCode='Ship']/ProductQuantity"/>
                        </xsl:when>
                        <xsl:when test="LotDetails[GCode='Gross' and ProductQuantity  >0]">
                            <xsl:value-of select="LotDetails[GCode='Gross']/ProductQuantity"/>
                        </xsl:when>
                        <xsl:otherwise>0</xsl:otherwise>
                    </xsl:choose>
                </Quantity>
            </xsl:copy>
        </xsl:for-each>
    </xsl:copy>
</xsl:template>

</xsl:stylesheet>

<强>结果

<?xml version="1.0" encoding="UTF-8"?>
<Lots>
  <Lot>
    <Quantity>5</Quantity>
  </Lot>
  <Lot>
    <Quantity>2</Quantity>
  </Lot>
  <Lot>
    <Quantity>3</Quantity>
  </Lot>
</Lots>

XSLT条件在foreach中只发生一次

1 个答案: