Thanks a lot for this detailed answer which is going beyond my current
expertise and understanding of these languages suptilities
In fact my problem was linked to a button action and thanks to
https://tiddlytools.com/timer.html code sample I was able to find a work an
option
\define tasks_delete()
<$vars projectId={{{ [<currentTiddler>get[projectId]] }}}>
<$reveal default="show" type="match" text="show">
<$button class="tc-button tt-button" tooltip="delete this alarm">
{{$:/core/images/delete-button}}
<$action-listops $tiddler=<<projectId>> $field="tasks"
$subfilter="-[[$(this_alarm)$]]" />
</$button>
</$reveal>
\end
The $reveal seems to be mandatory to get access to my projectId variable
withing the button action-listops
Thanks a lot for your help
Regards
Vpl
Le mardi 17 août 2021 à 17:06:55 UTC+2, Soren Bjornstad a écrit :
> vpl,
>
> First of all, the syntax for incorporating a variable into a filter
> expression is not <<variable>> but <variable>:
>
> \define test_project() {{{ [<my_tiddler>get[projectId]] }}}
>
> However, this still may not work, depending on how you use the macro. It's
> tempting to think of macro transclusions as "function calls", where when
> you say <<test_project>> you get the result of evaluating their contents as
> wikitext. But this is not how macros work – instead, *the exact text of
> the macro* (with any $text substitutions$ the macro might include) is
> inserted wherever the <<macro transclusion>> is used, which in this case is
> a filter expression in triple curly braces.
>
> Now, this will still work fine if you just say, for instance:
>
> <<test_project>>
>
> In this case, TW replaces <<test_project>> with {{{
> [<my_tiddler>get[projectId]] }}}, then sees that wikitext in the body of a
> tiddler, evaluates it, and gets the project ID. But it won't work if you
> try to use it within another filter expression, or as the value of an HTML
> or widget attribute, e.g., suppose you had a tiddler whose title was this
> project ID and wanted to transclude it:
>
> <$transclude tiddler=<<test_project>>/>
>
> In this case, TW will be looking for a tiddler called "{{{
> [<my_tiddler>get[projectId]] }}}", and it presumably won't find it.
>
> If you need to, you can get around this with the $wikify widget:
>
> <$wikify name="myProjectId" text=<<test_project>>>
> <$transclude tiddler="myProjectId"/>
> </$wikify>
>
> In this case, you explicitly tell TW to evaluate the wikitext "{{{
> [<my_tiddler>get[projectId]] }}}", then use the result to transclude the
> appropriate tiddler.
>
> You can read more on this in the Wikification section
> <https://groktiddlywiki.com/read/#Wikification> of *Grok TiddlyWiki*.
> On Tuesday, August 17, 2021 at 9:56:51 AM UTC-5 vpl wrote:
>
>> Hi,
>>
>> I want to define a global variable in my script with the value contained
>> into a tiddler field
>> When I hard code the global variable like
>>
>> \define test_project() project-1
>>
>> I can use the <<test_project>> variable without issue
>>
>> But when I want this <<test_project>> to be initialised to a tiddler's
>> field like the following this does not work
>>
>> \define test_project() {{{ [<<my_tiddler>>get[projectId]] }}}
>>
>> Any "magic" idea ..??
>>
>> Thanks a lot for your support
>>
>> Regards vpl
>>
>
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