Different take on conditional formats - parameterizing the color?

Question

Hi - I'm trying to do conditional formatting, but all the examples & help I've found shows a sample that hardcodes the actual color used. I have a requirement where I need to pass in the color in as part of my XML input.
The logic used to determine what color to display a number is very complex, and has changed a couple of times already. As such, I'm trying to keep all that logic in a SQL view, rather than reproducing the logic a hundred times over in the XSLT of a handful of reports.
My datamodel is set up something like this:
<PROC>
   <APPN>APA</APPN>
   <REQUEST>10,000</REQUEST>
   <SAC>9,500</SAC>
   <SAC_COLOR>red</SAC>
   <HAC>10,000</HAC>
   <HAC_COLOR>black</HAC_COLOR>
</PROC>
<PROC>
   <APPN>MSLS</APPN>
   <REQUEST>12,000</REQUEST>
   <SAC>12,500</SAC>
   <SAC_COLOR>green</SAC>
   <HAC>10,000</HAC>
   <HAC_COLOR>black</HAC_COLOR>
</PROC>
. . . This bit of XML would generate two rows in a report, with the first row having the "SAC" value colored red, the second row having "SAC" as green.
So I've tried using something like:
   <?for-each:PROC?>
      <?APPN?>
      <?attribute@incontext:color;SAC_COLOR?><?SAC?>
      <?attribute@incontext:color;HAC_COLOR?><?HAC?>
   <?end for-each?>But that throws errors when it tries to parse it. I've tried a number of different formats of this, as well as the lower-level format:
   <?for-each:PROC?>
         <?APPN?>
         <xsl:attribute name="color"><?SAC_COLOR?></xsl:attribute><?SAC?>
         <xsl:attribute name="color"><?HAC_COLOR?></xsl:attribute><?HAC?>
   <?end for-each?>but haven't had any luck finding something that works.
I know I could put in a set of if statements or a choose block, but again, that'd mean reproducing the same logic many many times over.... maintenance nightmare.
Any ideas?
Thanks in advance,
-- Andy

Answer 1

Got closer to an answer, I think. Tried using an XSL variable, and rewrote the logic as below. I used the xsl:attribute because it allowed me to specify the color as the content of an XML tag, rather than an attribute..
<?for-each:PROC?>
   <?xdoxslt:set_variable($_XDOCTX, ‘colSac’, SAC_COLOR)?>
   <?APPN?>
   <xsl:attribute name=”color”><?xdoxslt:get_variable($_XDOCTX, ‘colSac’)?></xsl:attribute><?SAC?>
<?end for-each?>and this almost works - I get the correct value from my data substituted in for the get_variable, but the xsl:attribute open/close is rendered as text. So my output for the SAC field ends up reading:
<xsl:attribute name=”color”>red</xsl:attribute>9,500So I guess I'm using the xsl:attribute tag incorrectly? I've googled that, have found a few examples that show the same sort of notation... am I missing something obvious here?
Edited by: Tanjental on Jul 16, 2012 8:22 AM