Difference: VarVAR (3 vs. 4)

Revision 42015-09-25 - TWikiContributor

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META TOPICPARENT name="TWikiVariables"

VAR{"NAME" ...} -- get a preference value from another web or topic and more

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ignorenull="on" If specified, a null string ("") value is regarded as undefined. This affects whether or not the value specified by the default parameter is returned. "off"
  • Example 1: To get the members of TWikiAdminGroup, %VAR{"GROUP" topic="%USERSWEB%.TWikiAdminGroup"}%, which expands to massimo.sponza, francesco.cepparo, riccardo.smareglia.
  • Example 2: To get %WEBBGCOLOR% of the Main web write %VAR{"WEBBGCOLOR" web="Main"}%, which expands to #FFEFA6
Changed:
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<
  • Example 3: Let's say you are writing the "foo" skin. And you want to have the users specify a string inserted in the head tag with FOOSKIN_HTML_HEAD_HOOK. That can be achived by the following:
    %VARVAL{"FOOSKIN_HTML_HEAD_HOOK" default="<nop>" ignorenull="on"}%
>
>
  • Example 3: Let's say you are writing the "foo" skin. And you want to have the users specify a string inserted in the head tag with FOOSKIN_HTML_HEAD_HOOK. That can be achived by the following:
    %VAR{"FOOSKIN_HTML_HEAD_HOOK" default="<nop>" ignorenull="on"}%
 
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