Jeroen Reijn napisał(a):
> Hi Olivier,
>
> you can use the SessionAttribute input module to select the attribute and use
> the parameter selector to see if the attribute has a value.
>
> http://cocoon.apache.org/2.1/userdocs/parameter-selector.html
>
> http://cocoon.apache.org/2.1/apidocs/org/apache/cocoon/components/modules/input/SessionAttributeModule.html
>
> Kind regards,
>
Isn't it that parameter-selector selects on _value_ of parameter but on
not existence? Non-existing session attr will have '' value AFAIR so it
could be used in "hacky" way:
<map:select type="parameter">
<map:parameter name="parameter-selector-test"
value="{session-attr:YOURATTR}"/>
<!--YOURATTR does not exist or has null value or is just empty string
-->
<map:when test="">
<!-- do something -->
</map:when>
<!-- YOURATTR exists -->
<map:otherwise>
<map:transform src="all_others.xsl"
</map:otherwise>
</map:select>
--
Best regards
Grzegorz Kossakowski
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