On Thursday, July 13, 2017 at 1:19:14 PM UTC-7, stevesuny wrote:
>
> I thought that, too.
>
> The problem: <$set name="this-value" value=<<currentTiddler>>> names to
> the current tiddler, not the value of the field that I am interested in.
>
> How do I set this-value to a field value, whose name is itself a variable?
>
This situation is referred to as "double indirection" (i.e. using one
variable to hold the name of another variable that contains the desired
value)
Try using a little "helper" function to construct the desired reference...
Something like this: (untested)
\define getFieldValue() {{!!$(this-field)$}}
<$list filter="[all[current]tag[element-field]]"
<$vars this-field=<<currentTiddler>>>
<$list filter="[tag[schedule-elements]each<this-field>sort<this-field>]">
<$vars this-value=<<getFieldValue>>>
<<this-field>>: <$link><<this-value>></$link><br>
</$vars>
</$list>
</$vars>
</$list>
<<getFieldValue>> uses the $(...)$ syntax to substitute the current field
name into the transclusion syntax. Thus, if this-field has a value of
"foobar", <<getFieldValue>> will return "{{!!foobar}}" which is then parsed
by the <$vars> widget to retrieve the field value and assign it to the
"this-value" variable
Note: instead of using the <$set name="foo" value="bar"> syntax, I prefer
to use the <$vars foo="bar"> syntax.... they both will have the same
result, but <$vars> seems easier to read.
enjoy,
-e
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