For-Each-Schleife ohne wiederholte Knoten in XSL-Datei

Question

Also, ich habe diese XML-Datei (unten) und ich versuche, eine Liste von Reservations pro Customer zu machen. Da Kunden "innerhalb" Reservations sind und nicht eindeutig sind (mehrere Kunden können unterschiedliche Reservierungen vornehmen), hatte ich ein Problem: Ich kann die richtige Menge von Reservations pro Customer abrufen, aber sie erscheinen die Anzahl der Male, die der Kunde in der existiert Datei, weil ich gehe alle Reservations jedes Mal werfen ...

Können Sie, bitte, mir dabei helfen? Ich muss nicht an die HTML-Datei Customers senden, die bereits verarbeitet wurde.

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Meine XML-Datei:

<?xml version="1.0" encoding="UTF-8" ?> 
<System xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="file:///C:/Users/ASUS/Documents/lprog-xml/Reservations.xsd"> 
    <Reservations> 
     <Reservation id="b1"> 
      <CourierToken>abb456fb</CourierToken> 
      <CustomerToken>fsdg432n</CustomerToken> 
      <BeginDate> 
       <Calendar type="Gregorian"> 
        <day>12</day> 
        <month>12</month> 
        <year>2016</year> 
       </Calendar> 
      </BeginDate> 
      <Term>20</Term> 
      <DropPoint id="f33"/> 
      <Customer> 
       <Username>pms</Username> 
       <Password>sdasda</Password> 
       <FirstName>Pedro</FirstName> 
       <LastName>Pinto</LastName> 
       <Email>xmllover4everAndEver64cm@email.com</Email> 
      </Customer> 
     </Reservation> 
     <Reservation id="a2"> 
      <CourierToken>dfsd43b2</CourierToken> 
      <CustomerToken>f3hu32mu</CustomerToken> 
      <BeginDate> 
       <Calendar type="Gregorian"> 
        <day>13</day> 
        <month>January</month> 
        <year>2017</year> 
       </Calendar> 
      </BeginDate> 
      <Term>5</Term> 
      <DropPoint id="f33"/> 
      <Customer> 
       <Username>xss</Username> 
       <Password>asdq</Password> 
       <FirstName>Xavier</FirstName> 
       <LastName>Silva</LastName> 
       <Email>theincredibleone@email.com</Email> 
      </Customer> 
     </Reservation> 
     <Reservation id="a342"> 
      <CourierToken>d4fd43b2</CourierToken> 
      <CustomerToken>f3htg2mu</CustomerToken> 
      <BeginDate> 
       <Calendar type="Gregorian"> 
        <day>10</day> 
        <month>March</month> 
        <year>2016</year> 
       </Calendar> 
      </BeginDate> 
      <Term>45</Term> 
      <DropPoint id="f33"/> 
      <Customer> 
       <Username>xss</Username> 
       <Password>asdq</Password> 
       <FirstName>Xavier</FirstName> 
       <LastName>Silva</LastName> 
       <Email>theincredibleone@email.com</Email> 
      </Customer> 
     </Reservation> 
     <Reservation id="b3"> 
      <CourierToken>desfg236</CourierToken> 
      <CustomerToken>43jmfh23</CustomerToken> 
      <BeginDate> 
       <Calendar type="Gregorian"> 
        <day>1</day> 
        <month>January</month> 
        <year>2017</year> 
       </Calendar> 
      </BeginDate> 
      <Term>8</Term> 
      <DropPoint id="g34"/> 
      <Customer> 
       <Username>dal</Username> 
       <Password>dasdg</Password> 
       <FirstName>Daniel</FirstName> 
       <LastName>Almeida</LastName> 
       <Email>dokkanBattleFTW@email.com</Email> 
      </Customer> 
     </Reservation> 
     <Reservation id="a56"> 
      <CourierToken>5bh4fdsf</CourierToken> 
      <CustomerToken>onfdsn43</CustomerToken> 
      <BeginDate> 
       <Calendar type="Gregorian"> 
        <day>23</day> 
        <month>9</month> 
        <year>2018</year> 
       </Calendar> 
      </BeginDate> 
      <Term>15</Term> 
      <DropPoint id="f33"/> 
      <Customer> 
       <Username>pops</Username> 
       <Password>iHack</Password> 
       <FirstName>Migas</FirstName> 
       <LastName>what</LastName> 
       <Email>getHackedM8@rekt.com</Email> 
      </Customer> 
     </Reservation> 
     <Reservation id="t345"> 
      <CourierToken>432njdas</CourierToken> 
      <CustomerToken>efg234jn</CustomerToken> 
      <BeginDate> 
       <Calendar type="Gregorian"> 
        <day>25</day> 
        <month>11</month> 
        <year>2567</year> 
       </Calendar> 
      </BeginDate> 
      <Term>56</Term> 
      <DropPoint id="f33"/> 
      <Customer> 
       <Username>SenorJobs</Username> 
       <Password>gr8b8m8ir88/8</Password> 
       <FirstName>Steve</FirstName> 
       <LastName>Jobs</LastName> 
       <Email>iOwnAppleBitches@email.com</Email> 
      </Customer> 
     </Reservation> 
     <Reservation id="p45"> 
      <CourierToken>acw4tsca</CourierToken> 
      <CustomerToken>ascfdv32</CustomerToken> 
      <BeginDate> 
       <Calendar type="Gregorian"> 
        <day>19</day> 
        <month>5</month> 
        <year>2020</year> 
       </Calendar> 
      </BeginDate> 
      <Term>7</Term> 
      <DropPoint id="f33"/> 
      <Customer> 
       <Username>SenorGates</Username> 
       <Password>VivaLaMicrosoft</Password> 
       <FirstName>Billy</FirstName> 
       <LastName>Gator</LastName> 
       <Email>cyaSteve@email.com.apple.pt</Email> 
      </Customer> 
     </Reservation> 
     <Reservation id="df45"> 
      <CourierToken>34rfdf3d</CourierToken> 
      <CustomerToken>554fgdvv</CustomerToken> 
      <BeginDate> 
       <Calendar type="Gregorian"> 
        <day>21</day> 
        <month>10</month> 
        <year>2020</year> 
       </Calendar> 
      </BeginDate> 
      <Term>20</Term> 
      <DropPoint id="f33"/> 
      <Customer> 
       <Username>CristianoPenaldo</Username> 
       <Password>saudadesIrina</Password> 
       <FirstName>Cristiano</FirstName> 
       <LastName>Ronaldo</LastName> 
       <Email>esteMessiJaMeteNojo@email.com</Email> 
      </Customer> 
     </Reservation> 
     <Reservation id="po454"> 
      <CourierToken>dfsg345d</CourierToken> 
      <CustomerToken>sadfg345</CustomerToken> 
      <BeginDate> 
       <Calendar type="Gregorian"> 
        <day>31</day> 
        <month>2</month> 
        <year>2345</year> 
       </Calendar> 
      </BeginDate> 
      <Term>23</Term> 
      <DropPoint id="f33"/> 
      <Customer> 
       <Username>ZLATAN</Username> 
       <Password>iAmZlatan</Password> 
       <FirstName>Zlatan</FirstName> 
       <LastName>Ibrahimovic</LastName> 
       <Email>rektByZlatan@email.com</Email> 
      </Customer> 
     </Reservation> 
     <Reservation id="sd34"> 
      <CourierToken>34567asd</CourierToken> 
      <CustomerToken>dssfdgh4</CustomerToken> 
      <BeginDate> 
       <Calendar type="Gregorian"> 
        <day>10</day> 
        <month>10</month> 
        <year>2030</year> 
       </Calendar> 
      </BeginDate> 
      <Term>4</Term> 
      <DropPoint id="f33"/> 
      <Customer> 
       <Username>PashaBiceps</Username> 
       <Password>maFriend</Password> 
       <FirstName>Pasha</FirstName> 
       <LastName>Biceps</LastName> 
       <Email>youAreMyBrotherMyFriend@email.com</Email> 
      </Customer> 
     </Reservation> 
    </Reservations> 
    <DropPoints> 
     <DropPoint id="f33"> 
      <Designation>Quinta das Freiras</Designation> 
      <State>Free</State> 
      <Location> 
       <Street>Rio Tinto</Street> 
       <ZipCode>4435-074</ZipCode> 
       <Country>Portugal</Country> 
       <Coordinates> 
        <Longitude>32</Longitude> 
        <Latitude>52</Latitude> 
       </Coordinates> 
      </Location> 
     </DropPoint> 
     <DropPoint id="g34"> 
      <Designation>Norte Shopping</Designation> 
      <State>Free</State> 
      <Location> 
       <Street>Porto</Street> 
       <ZipCode>4488</ZipCode> 
       <Country>Portugal</Country> 
       <Coordinates> 
        <Longitude>24</Longitude> 
        <Latitude>12</Latitude> 
       </Coordinates> 
      </Location> 
     </DropPoint> 
    </DropPoints> 
</System> 

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Meine XSL-Datei:

<?xml version="1.0"?> 

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

    <xsl:template match="/"> 
     <html> 
      <body> 
       <h2>Customers</h2> 
       <hr></hr><hr></hr> 
       <!-- select="System/Reservations/Reservation/Customer" --> 

       <xsl:for-each select="System/Reservations/Reservation/Customer"> 
        <xsl:variable name="customerEmail" select="Email"/> 

        <h4><b>Name: </b> <xsl:value-of select="FirstName"/> <xsl:value-of select="LastName"/> </h4> 
        <h4><b>E-mail: </b> <xsl:value-of select="Email"/> </h4> 

        <!-- Creates a table with information about reservations, for each client --> 
        <table border="1"> 
        <tr bgcolor="#9acd32"> 
         <th>Reservation ID</th> 
         <th>Date</th> 
         <th>Duration (days)</th> 
         <th>Customer Token</th> 
        </tr> 

        <xsl:for-each select="../../Reservation"> 
         <xsl:variable name="customerEmailCurrentReservation" select="Customer/Email"/> 

         <!-- processes reservations for that customer only --> 
         <xsl:if test="$customerEmail=$customerEmailCurrentReservation"> 

          <tr>          
           <td><xsl:value-of select="@id"/></td> 
           <td><xsl:value-of select="BeginDate/Calendar/day"/>-<xsl:value-of select="BeginDate/Calendar/month"/>-<xsl:value-of select="BeginDate/Calendar/year"/></td> 
           <td><xsl:value-of select="Term"/></td> 
           <td><xsl:value-of select="CustomerToken"/></td> 
          </tr> 

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

        </table> <!-- End of the table for that customer --> 
        <br></br><hr></hr><br></br> 
       </xsl:for-each> 
      </body> 
     </html> 
    </xsl:template> 

</xsl:stylesheet> 

---

Dies ist, was ich (in der HTML-transformierten Datei) erhalten:

---

Und das ist, was ich erhalten möchten:

Vielen Dank im Voraus!

Answer 1

Das letzte, was wir brauchen, ist noch ein weiteres Beispiel der Münchischen Gruppierung. Aber da kann man nicht auf eigene Faust zu verwalten scheinen, versuchen Sie es auf diese Weise:

XSLT 1,0

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

<xsl:key name="reservation-by-customer" match="Reservation" use="Customer/Email" /> 

<xsl:template match="/System"> 
    <html> 
     <body> 
      <h2>Customers</h2> 
      <!-- for each distinct customer --> 
      <xsl:for-each select="Reservations/Reservation[count(. | key('reservation-by-customer', Customer/Email)[1]) = 1]"> 
       <!-- customer's details --> 
       <h4> 
        <xsl:text>Name: </xsl:text> 
        <xsl:value-of select="Customer/FirstName"/> 
        <xsl:text> </xsl:text> 
        <xsl:value-of select="Customer/LastName"/> 
       </h4> 
       <!-- customer's reservations --> 
       <table border="1"> 
        <tr> 
         <th>Reservation ID</th> 
         <th>Date</th> 
         <th>Duration (days)</th> 
         <th>Customer Token</th> 
        </tr> 
        <xsl:for-each select="key('reservation-by-customer', Customer/Email)"> 
         <tr>          
          <td> 
           <xsl:value-of select="@id"/> 
          </td> 
          <td> 
           <xsl:value-of select="BeginDate/Calendar/day"/> 
           <xsl:text>-</xsl:text> 
           <xsl:value-of select="BeginDate/Calendar/month"/> 
           <xsl:text>-</xsl:text> 
           <xsl:value-of select="BeginDate/Calendar/year"/> 
          </td> 
          <td> 
           <xsl:value-of select="Term"/> 
          </td> 
          <td> 
           <xsl:value-of select="CustomerToken"/> 
          </td> 
         </tr> 
        </xsl:for-each> 
       </table> 
       <hr/> 
      </xsl:for-each> 
     </body> 
    </html> 
</xsl:template> 

</xsl:stylesheet>