Bob,
Perhaps this helps, or not, I have not read this topic.
fieldname[value] works in any filter to return only tiddlers with a
fieldname with the ""value", it allows you to create things which look like
new filter operators;
eg
display-code[show]
However if you start using multiple titles/values within a field the list
operators, the enlist, listops and search become your friends.
Alternatively on the current tiddler use a list to extract each value from
a field and each independantly.
Regards
Tones
On Thursday, 17 September 2020 20:51:34 UTC+10, Dr. Bob Jansen wrote:
>
> Eric,
>
> that doesn't work, no results returned.
>
> Have also tried
>
> <$list
> filter="[tag[Names]!tag[Index]!match<currentTiddler>search:artwork_id[$artID$]]">
>
> which doesn't work either, no results returned.
>
> Interestingly, Saq's comment about replacing the call to the macro with
>
> <$macrocall $name="is_purchased_by" artWorkID={{!!artwork_id}} />
>
> also leads to no results returned.
>
> The only combination of macro calling and macro code that returns any
> result, albeit the wrong one, is what I have provided.
>
> Is there any other way to scan a field looking for a specific text string?
>
> bobj
>
> On 17/9/20 7:37 pm, Eric Shulman wrote:
>
> On Wednesday, September 16, 2020 at 11:37:09 PM UTC-7, Bob Jansen wrote:
>>
>> I have three tiddlers, tag=Names, TK5, TK6 and TK7. Each has a field,
>> artwork_id but only TK5 has artwork_id=TK1. the other two have an empty
>> field.
>> I have a tiddler, TK1 which has a field artwork_id with value TK1.
>> TK1 calls a macro <<is_purchased_by {{!!artwork_id}} >>
>>
>> The macro is:
>> \define is_purchased_by(artworkID)
>> <$wikify name="artID" text=[$artworkID$] >
>> <$log $message="hello world" myvalue=artID />
>> <$list filter="[[$artworkID$]!is[blank]]" variable="not_blank">
>> <$list filter=
>> "[tag[Names]!tag[Index]!match<currentTiddler>search:artwork_id[$(artID)$]]"
>> >
>> • <$link to={{!!name_id}}><$view field="title"/> <$view field=
>> "person_name"/></$link><br/>
>> </$list>
>> </$list>
>> </$wikify>
>> \end
>>
>
> 1) You shouldn't need to wikify the $artworkID$
> 2) In your second list filter, you reference $(artID)$ ... but that is
> incorrect, since the $(...)$ form of reference is only for variables that
> are defined *outside* of the current macro.
> 3) Try re-writing your filter like this:
>
>> <$list filter="[tag[Names]!tag[Index]!match<currentTiddler>
>> search:artwork_id[$artworkID$]]">
>>
> -e
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