I'm a bit tired so this isn't as clear as I would like, but hopefully this
pseudocode will point you in the correct direction for the pattern for
getting this done with just wikitext:
\define processRow()
nestedRows = level2 +count[]
<$vars cnt={{{[<cnt>add<nestedRows>]}}}>
<$list filter="[[allrows] +[after<currentTiddler>]]" emptyMessage="<<cnt>>">
<<processRow>>
</$list>
</$vars>
\end
\define processAllRows()
<$vars currentTiddler={{{[allrows] + first[]}}} cnt="0">
<<processRow>>
</$vars>
\end
<td rowspan=<<processAllRows>> > or set it to a variable for re-use.
On Wednesday, August 26, 2020 at 9:16:30 PM UTC+2 Werner wrote:
> Good evening guys, me again.
>
> I understand that the scope of a variable is defined by the enclosing
> <$vars> <$set> or <$wikify> widgets. I also understand that any new <$set>
> widget opens up a new scope, where a variable <myVar> defined in an outer
> scope would be overridden. I am facing a problem where I would need to
> access out-of-scope variables (or come up with a completely different
> approach).
>
> I am still working on a set of double-nested JSON data (using Josh
> Fontany's JSONmangler plugin). I want to display the content of the data in
> a table using table cells spanning multiple rows like <td rowspan = "5">.
> The problem here is, the rowspan is defined by the number of elements in
> the lowest nested level and I would need it before rendering the table and
> looping through the array elements fetching the data. So typically, in a
> garden variety programming language, I would do something as follows:
>
> totalRows = 0
> Loop through Level1
> nestedRows= Level2.count()
> totalRows += nestedRows
> End Loop
>
> Could anybody enlighten me, if a construct like this is possible in TW and
> how I would achieve it?
>
> Two fallback options:
> - storing the number of elements in the JSON structure (yuck - feels like
> cheating).
> - throwing the whole JSON data structure at an JS macro. Positive side
> effect: I would have to dive into it and learn something new.
>
> Thanks for helping me out on this.
> Best, Werner
>
>
>
>
>
>
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