xforms if/else equivalent

Unless there's more that you want to include in your switch, you could do something simpler along the lines of

<xforms:output value="if (instance('labels')/label[@labelID = ./name()]) then instance('labels')/label[@labelID = ./name()] else ./name()"/>

Having said that, I suspect that you will have problems with [hidden email] because, within the predicate, the expression "./name()" will be evaluated in the context of the label node rather than the "outer" node you are probably expecting.

To get round this, there's a trick (or language feature, if you prefer) which is useful to use, which is to use a for loop with only one step to create a local variable.  So you would use something more like

<xforms:output value="for $name in ./name() return if (instance('labels')/label[@labelID = $name]) then instance('labels')/label[@labelID = $name] else $name"/>

Hope this helps,

Dave Mc



Jeremiah Jahn wrote:

this seems to work, but seems like a hack.

<xforms:group ref=[hidden email]>
     <xforms:output  value=[hidden email]/>:
</xforms:group>
<xforms:group ref=[hidden email]>
     <xforms:output ref="." value="name()"/>:
</xforms:group>


On Tue, Sep 22, 2009 at 12:33 AM, Jeremiah Jahn [hidden email] wrote:
  

what is the right way to do this? you don't support avt on the
selected. I tried a group, but couldn't figure out how to do the
negative. There has to be a way to make a choice, based on the
non-existence of something. Is there a way to include xsl in the
.xhtml files. should I try and make a simple xbl else if tag?

                                  <xforms:switch>
                                       <xforms:case
selected=[hidden email]>
                                           <xforms:output
value=[hidden email]/>:
                                       </xforms:case>
                                       <xforms:case
selected=[hidden email]>
                                           <xforms:output ref="."
value="name()"/>:
                                       </xforms:case>
                                   </xforms:switch>

    

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Dave McIntyreSoftware Developer [hidden email] P: +64 9 638 0600 M: +64 21 212 8087 F: +64 9 638 0699 S: <a href="callto:dave.mcintyre">dave.mcintyre www.orionhealth.com

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