XSLT 1.0 - 使用 Vanilla XSLT 1.0 或 PHP XSLT 的节点中值唯一性的输出计数

Question

我的 XML 数据中有一个名为此节点的节点包含一个唯一值，例如 45678。通过 XSLT，如果不止一次找到 45678，我只想包含此节点的数据（ 1）在完整的数据集中。最终结果可以修改现有节点，或创建一个名为 .该数据的最终结果创建了“亲子”产品。 productId 值将所有类似产品组合在一起，问题是有时只有 1 个产品具有该键，我不应该创建父产品。

重要说明：为什么我如此挣扎，第一，我对 XSL 还是全新的，第二，当前版本的引擎不允许我使用 EXSLT，但看起来我可以如有必要，请使用 PHP。

示例数据集

<productId>0243176820</productId>这个值你可以看到被多次使用，在这种情况下应该包含在结果数据中，<productId>1136194258</productId>但是这个只包含一次

下面的示例数据

<root>
  <part>
    <partNumber>06013464</partNumber>
    <punctuatedPartNumber>0601-3464</punctuatedPartNumber>
    <partStatusDescription>DISCONTINUED</partStatusDescription>
    <partDescription>Flat Black 18" Handlebar</partDescription>
    <unitOfMeasure>Each</unitOfMeasure>
    <brandName>LA CHOPPERS</brandName>
    <supplierNumber>LA-7321-18M</supplierNumber>
    <specialInstructions/>
    <baseDealerPrice>185.0000</baseDealerPrice>
    <yourDealerPrice>185.0000</yourDealerPrice>
    <baseRetailPrice>272.9500</baseRetailPrice>
    <originalRetailPrice>272.9500</originalRetailPrice>
    <partImage>http://asset.lemansnet.com/z/LzgvQS80LzhBNDg5QjE2LUNEQkMtNDAzMC04NkE0LTlEQjE1MDdGRDYzMQ==</partImage>
    <productId>1136194258</productId>
    <productName>1-1/4" Touring Ape Hanger Handlebar</productName>
  </part>
  <part>
    <partNumber>06012660</partNumber>
    <punctuatedPartNumber>0601-2660</punctuatedPartNumber>
    <partStatusDescription>STANDARD</partStatusDescription>
    <partDescription>Black 10" Handlebar</partDescription>
    <unitOfMeasure>Each</unitOfMeasure>
    <brandName>LA CHOPPERS</brandName>
    <supplierNumber>LA-7321-10B</supplierNumber>
    <specialInstructions/>
    <baseDealerPrice>185.0000</baseDealerPrice>
    <yourDealerPrice>185.0000</yourDealerPrice>
    <baseRetailPrice>272.9500</baseRetailPrice>
    <originalRetailPrice>272.9500</originalRetailPrice>
    <partImage>http://asset.lemansnet.com/z/LzkvMC9DLzkwQzQ2MjZGLTQyOEItNDNGRi1CQjYwLTNBREMyOUM1REU4MQ==</partImage>
    <productId>0243176820</productId>
    <productName>1-1/4" Touring Ape Hanger Handlebar</productName>
  </part>
  <part>
    <partNumber>06012663</partNumber>
    <punctuatedPartNumber>0601-2663</punctuatedPartNumber>
    <partStatusDescription>STANDARD</partStatusDescription>
    <partDescription>Chrome 14" Handlebar</partDescription>
    <unitOfMeasure>Each</unitOfMeasure>
    <brandName>LA CHOPPERS</brandName>
    <supplierNumber>LA-7321-14</supplierNumber>
    <specialInstructions/>
    <baseDealerPrice>185.0000</baseDealerPrice>
    <yourDealerPrice>185.0000</yourDealerPrice>
    <baseRetailPrice>272.9500</baseRetailPrice>
    <originalRetailPrice>272.9500</originalRetailPrice>
    <partImage>http://asset.lemansnet.com/z/LzcvNC81Lzc0NUE3OUM4LTBERDAtNDQ3NS1CMEFBLUVBMDUyRkUzN0Q5OA==</partImage>
    <productId>0243176820</productId>
    <productName>1-1/4" Touring Ape Hanger Handlebar</productName>
  </part>
  <part>
    <partNumber>06011482</partNumber>
    <punctuatedPartNumber>0601-1482</punctuatedPartNumber>
    <partStatusDescription>STANDARD</partStatusDescription>
    <partDescription>Black Beach Bar Handlebar</partDescription>
    <unitOfMeasure>Each</unitOfMeasure>
    <brandName>LA CHOPPERS</brandName>
    <supplierNumber>LA-7312-01B</supplierNumber>
    <specialInstructions/>
    <baseDealerPrice>106.5000</baseDealerPrice>
    <yourDealerPrice>106.5000</yourDealerPrice>
    <baseRetailPrice>157.9500</baseRetailPrice>
    <originalRetailPrice>157.9500</originalRetailPrice>
    <partImage>http://asset.lemansnet.com/z/LzMvRS82LzNFNjlFOTdDLTg5NjEtNDU1MC1BRkY3LUExNjU0MTdEQUQ5MQ==</partImage>
    <productId>0635669078</productId>
    <productName>Hefty 1-1/4" Handlebar — Beach Bar/Hefty</productName>
  </part>
</root>

当前处理数据的 XSLT，除注释掉的部分外，其他一切都正常。

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

    <xsl:template match="root">
        <xsl:element name="items">
            <xsl:for-each select="part">
                <xsl:if test="supplierNumber != '' and partStatusDescription != 'DISCONTINUED'     "> 
                    <xsl:element name="item">
                        <partNumber>
                            <xsl:value-of select="partNumber"/>
                        </partNumber>
                        <xsl:element name="name">
                             <xsl:value-of select="concat(brandName,' ',productName)"/>
                        </xsl:element>
                        <punctuatedPartNumber>
                            <xsl:value-of select="punctuatedPartNumber"/>
                        </punctuatedPartNumber>
                         <xsl:element name="is_in_stock">
                            <xsl:if test="partStatusDescription = 'STANDARD'">
                                    <xsl:value-of select="1"/>
                            </xsl:if>
                            <xsl:if test="partStatusDescription != 'STANDARD'">
                                <xsl:value-of select="0"/>
                            </xsl:if>    
                        </xsl:element>
                        <partDescription>
                            <xsl:value-of select="partDescription"/>
                        </partDescription>
                        <unitOfMeasure>
                            <xsl:value-of select="unitOfMeasure"/>
                        </unitOfMeasure>
                        <brandName>
                            <xsl:value-of select="brandName"/>
                        </brandName>
                        <supplierNumber>
                            <xsl:value-of select="supplierNumber"/>
                        </supplierNumber>
                        <specialInstructions>
                            <xsl:value-of select="specialInstructions"/>
                        </specialInstructions>
                        <xsl:element name="price">
                            <xsl:value-of select="(originalRetailPrice * 100) div 100"/>
                        </xsl:element>
                        <xsl:element name="special_price">
                            <xsl:if test="baseRetailPrice  &lt; originalRetailPrice">
                                <xsl:value-of select="baseRetailPrice"/>
                            </xsl:if>
                        </xsl:element>
                        <partImage>
                            <xsl:value-of select="partImage"/>
                        </partImage>
                        <productName>
                            <xsl:value-of select="productName"/>
                        </productName>
                        <productImage>
                            <xsl:value-of select="productImage"/>
                        </productImage>
                        <bullet1>
                            <xsl:value-of select="bullet1"/>
                        </bullet1>
                        <bullet2>
                            <xsl:value-of select="bullet2"/>
                        </bullet2>
                        <bullet3>
                            <xsl:value-of select="bullet3"/>
                        </bullet3>
                        <bullet4>
                            <xsl:value-of select="bullet4"/>
                        </bullet4>

                        <!-- finish -->
                        <xsl:choose>
                            <xsl:when test="contains(partDescription, 'Black')">
                                <finish>Black</finish>
                            </xsl:when>
                            <xsl:when test="contains(partDescription, 'Flat Back')">
                                <finish>Flat Back</finish>
                            </xsl:when>
                            <xsl:when test="contains(partDescription, 'Chrome')">
                                <finish>Chrome</finish>
                            </xsl:when>
                        </xsl:choose>
                        
                        <!-- size -->
                        <xsl:call-template name="find-size">
                            <xsl:with-param name="text" select="partDescription"/>
                        </xsl:call-template>
                       
                        <!-- I understand this wouldn't work as I'm just checking the total nodes, but I think someonehow I need to set the value of this node as a variable, and then check the count of this variable. This is easy in PHP, but I don't fully understand XSL  -->
                        <xsl:if test="count(/root/part/configurable_id) &gt; 1">
                            <xsl:element name="configurable_id">
                                <xsl:value-of select="productId"/>
                            </xsl:element>
                        </xsl:if>

                    </xsl:element>
                </xsl:if>
            </xsl:for-each>
        </xsl:element>
    </xsl:template>

    <xsl:template name="find-size">
        <xsl:param name="text"/>
        <xsl:param name="delimiter" select="' '"/>
        <xsl:variable name="token" select="substring-before(concat($text, $delimiter), $delimiter)" />
        <xsl:choose>
            <xsl:when test="starts-with(translate($token, '123456789', '000000000'), '0')">
                <size>
                    <xsl:value-of select="$token"/>
                </size>
            </xsl:when>
            <xsl:when test="contains($text, $delimiter)">
                <!-- recursive call -->
                <xsl:call-template name="find-size">
                    <xsl:with-param name="text" select="substring-after($text, $delimiter)"/>
                </xsl:call-template>
            </xsl:when>
        </xsl:choose>
    </xsl:template>

</xsl:stylesheet>

Answer 1

要检查 XSLT 1.0 中值的唯一性，您可以对 Muenchian grouping.

稍作修改

这是一个最小示例：

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:key name="part-by-product" match="part" use="productId" />

<xsl:template match="/root">
    <items>
        <xsl:for-each select="part[supplierNumber/text() and partStatusDescription != 'DISCONTINUED']">
            <item>
                <xsl:copy-of select="partNumber | productId"/>
                <!-- check productId uniqueness -->
                <xsl:if test="count(key('part-by-product', productId)) > 1">
                    <configurable_id>
                        <xsl:value-of select="productId"/>
                    </configurable_id>
                </xsl:if>
            </item>
        </xsl:for-each>
    </items>        
</xsl:template>

</xsl:stylesheet>

应用于您的输入示例，这将 return:

结果

<?xml version="1.0" encoding="UTF-8"?>
<items>
  <item>
    <partNumber>06012660</partNumber>
    <productId>0243176820</productId>
    <configurable_id>0243176820</configurable_id>
  </item>
  <item>
    <partNumber>06012663</partNumber>
    <productId>0243176820</productId>
    <configurable_id>0243176820</configurable_id>
  </item>
  <item>
    <partNumber>06011482</partNumber>
    <productId>0635669078</productId>
  </item>
</items>

与您的问题无关：

注意使用 predicate instead of xsl:if and literal result elements 而不是 xsl:element 来减少代码量。

XSLT 1.0 - 使用 Vanilla XSLT 1.0 或 PHP XSLT 的节点中值唯一性的输出计数

XSLT 1.0 - Output Count of Value Uniqueness in a Node with Vanilla XSLT 1.0 or PHP XSLT

xml

xslt

xslt-1.0