[XSL-LIST Mailing List Archive Home]
[By Thread]
[By Date]
At 18:43 16/01/2003 +0100, you wrote:
You can copy your XML into a variable, but with a copy that will not be a true copy, because you will have to instanciate attribute "weight", defaulted to value 1 if absent.
Then you put the current node on the root of this variable (use Saxon with version="1.1", or use a function like node-set() to convert RTF to nodes-set ):
<xsl:for-each select="$myNewXMLtreeWithAttributeWeightAlwaysPresent">
<xsl:for-each select="what you want">
<xsl:sort what you want>
</xsl:for-each>
</xsl:for-each>
Regards -- Ph D
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
Re: [xsl] Complex sorting problem (looking for an XSLT outer join?)
Subject: Re: [xsl] Complex sorting problem (looking for an XSLT outer join?) From: Philippe Drix <pdrix@xxxxxxxxxxxx> Date: Thu, 16 Jan 2003 19:12:55 +0100 |
At 18:43 16/01/2003 +0100, you wrote:
Hi,
My source xml has the following format:
<root> <items> <item category="1" data="ggg"> <date year="1995" month="4" day="13"/> </item> <item category="2" data="hhh"> <date year="1984" month="7" day="22"/> </item> <item category="3" data="www"> <date year="1991" month="3" day="12"/> </item> <item category="3" data="rrr"> <date year="1999" month="6" day="19"/> </item> <item category="4" data="xxx"> <date year="1982" month="2" day="17"/> </item> <item category="5" data="kkk"> <date year="2000" month="12" day="11"/> </item> </items>
<categories> <category id="1" weight="0"> <category id="3" weight="2"> <category id="4" weight="1"> </categories> </root>
1) The source xml contains a list of items. Each item carries a 'data' attribute, which is the actual content of the item. Apart from that, each item contains: a) a 'catagory' attribute, identifying the catagory that the item belogs to. b) a 'date' child element, representing the date of the item Each item has an implied weight, implied by the category that it references. (but see [2] and [3])
2) The source xml also contains a list of categories. Each category contains a 'weight' attribute, which carries the 'importance' of the category. Weight is from 0 (least important) to 2 (most important), in other words [0,2].
3) Some of the categories referred to by the item elements are not present in the source xml. A default weight of 1 should be assumed in that case. In the example xml, the categories (2,5) are absent.
I would like to sort the item elements using the following criteria: 1) first, by (implied) weight 2) second, by date
It seems to me that the problem would be easy if all referenced categories were present in the source xml. In that case, I could use xsl:key to retreive the matching weight for each item.
However, that is not the case. It seems that what I want is to grab a default weight of 1 wherever the references category is not present in the source xml. Using SQL, for instance, I could use an outer join, specifying a default value.
Is there any solution for this problem in XSLT?
Thanks in advance for any feedback,
tt
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
You can copy your XML into a variable, but with a copy that will not be a true copy, because you will have to instanciate attribute "weight", defaulted to value 1 if absent.
Then you put the current node on the root of this variable (use Saxon with version="1.1", or use a function like node-set() to convert RTF to nodes-set ):
<xsl:for-each select="$myNewXMLtreeWithAttributeWeightAlwaysPresent">
<xsl:for-each select="what you want">
<xsl:sort what you want>
</xsl:for-each>
</xsl:for-each>
Regards -- Ph D
== Philippe Drix ___________ __| OBJECTIVA |___________________ http://www.objectiva.fr 21-23, rue Aristide Briand - 92170 Vanves tel : +33 1 47 36 60 30 fax : +33 1 47 36 61 93
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
[xsl] Complex sorting problem (look, Taras Tielkes | Thread | Re: [xsl] Complex sorting problem , Dimitre Novatchev |
RE: [xsl] self::node()[not(.=follow, Andy J. Cupp | Date | RE: [xsl] Article Paging With Condi, cknell |
Month |
Keywords