Structuring the XML output.

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Note: This post will be used as reference for several posts on XSLT.

If you just want to do a simple transformation where you do the same thing over and over again when a template hits, you don't really need to call templates.

Say you have a long list of records (the music kind) and you want to extract the ones by Michael Jackson, you can simply perform an if-statement inside the template.

  1. <!-- Given a structure like this one... -->
  2. < recordCollection >
  3. <record>
  4. <artist>Madonna</artist>
  5. <title>Like a prair</title>
  6. </record>
  7. <record>
  8. <artist>Gorillaz</artist>
  9. <title>Gorillaz</title>
  10. </record>
  11. <record>
  12. <artist>Madcon</artist>
  13. <title>Beggin</title>
  14. </record>
  15. <record>
  16. <artist>Michael Jackson</artist>
  17. <title>Bad</title>
  18. </record>
  19. <record>
  20. <artist>Queen</artist>
  21. <title>Jazz</title>
  22. </record>
  23. <record>
  24. <artist>Muse</artist>
  25. <title>The Resistance</title>
  26. </record>
  27. <record>
  28. <artist>Duffy</artist>
  29. <title>Rockferry</title>
  30. </record>
  31. </ recordCollection >
  32.  
  33. <!-- Then you would want to have a simple template handling all records and filtering out the ones matching the artist you look for and list the artists name and album. -->
  34.  
  35. <xsl:template match="record">
  36. <xsl:if test="./artist='Michael Jackson'">
  37. Artist: <xsl:value-of select="./artist" />
  38. Album: <xsl:value-of select="./title" />
  39. </xsl:if>
  40. </ xsl:template >

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