Mercurial > dive4elements > river
view etl/doc/pegelstationen.xml @ 6087:47775e3a8cf6
Datacage: Introduced <dc:virtual-column name="colname" type="type" expr="XPath">
dc:virtual-column can be used to virtual add or replace a column named 'colname' to
the current result set. The value is determined by evaluating "XPath", the type is
determined by "type" (possible values: number, bool, node, nodeset, string. defaults to string).
Usage:
<dc:virtual-column name="c" type="number" expr="$a+$b">
<dc:for-each>
<dc:message>{$a} + {$b} = {$c}</dc:message>
</dc:for-each>
</dc:virtual-column>
table
a | b
--+--
1 | 2
3 | 4
will result in:
1 + 2 = 3
3 + 4 = 7
| author | Sascha L. Teichmann <teichmann@intevation.de> |
|---|---|
| date | Fri, 24 May 2013 12:19:25 +0200 |
| parents | 5aa05a7a34b7 |
| children |
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<?xml version="1.0" encoding="utf-8"?> <STATIONEN> <STATION NAME="FREMERSDORF" NUMMER="0026400550" /> <STATION NAME="ST.ARNUAL" NUMMER="0026400220" /> <STATION NAME="COCHEM" NUMMER="0002690010" /> <STATION NAME="TRIER" NUMMER="0002650010" /> <STATION NAME="PERL" NUMMER="0002610010" /> <STATION NAME="SCHOENA" NUMMER="501010"/> <STATION NAME="DRESDEN" NUMMER="501060"/> <STATION NAME="TORGAU" NUMMER="501261"/> <STATION NAME="WITTENBERG" NUMMER="501420"/> <STATION NAME="AKEN" NUMMER="502010"/> <STATION NAME="BARBY" NUMMER="502070"/> <STATION NAME="MAGDEBURG-STR" NUMMER="502180"/> <STATION NAME="TANGERMUENDE" NUMMER="502350"/> <STATION NAME="WITTENBERGE" NUMMER="503050"/> <STATION NAME="NEU DARCHAU" NUMMER="5930010"/> </STATIONEN>