On Nov 17, 8:19 pm, Trey <[email protected]> wrote:
> I am trying to write a forEachTiddler script to display any tiddlers
> that are tagged with today's date. In all my work I use a custom date
> format Year, Month, Day, with leading zeros (as in 20101117, the date
> of this post).
>
> I've almost got it working! Here is my script.
>
> <<forEachTiddler
> sortBy
> 'tiddler.created'
> descending
>
> script
> '
> function lastDays(tiddler) {
> var currentTime = new Date()
> var month = currentTime.getMonth() + 1
> var day = currentTime.getDate()
> if (day<10)
> {
> day = "0" + day;
> }
> var year = currentTime.getFullYear()
> year = year.toString();
> day = day.toString();
> month = month.toString();
> var today = (year + day + month)
>
> if (tiddler.tags.contains(today))
> return "* [[" + tiddler.title + "]]\n";
> else
> return "";}
>
> '
> write 'lastDays(tiddler)'
>
>
>
> The issue is that the line
> if (tiddler.tags.contains(today))
> doesn't reference the variable "today".
> It works if I hardcode a date in there. And I know that the "today"
> variable is outputting in the correct format. I just don't know how
> to get the variable "today" into tiddler.tags.contains().
>
> any help is very much appreciated! I did my homework on this but I'm
> definitely a beginner at javascript. If there is an obvious shortcut
> to this function I've overlooked, please do enlighten me.
>
> Thanks TW dev group!
You don't need to do all that work (though it is a good learning
exercise)...
Instead, you can use the TW core's <<list>> macro to render a bullet
list of selected tiddler titles, based on a matching tag value:
<<list filter [tag[tagvalue]]>>
For your purposes, you need to *generate* the desired tag value from
the current date. Using the TW core's .formatString method for
javascript date objects, you can write:
new Date().formatString('YYYY0MM0DD')
to get the current date as a text string in the indicated format
Lastly, you can use an "evaluated parameter" in the <<list>> macro to
construct the tag filter as a text string:
{{'[tag['+new Date().formatString('YYYY0MM0DD')+']]'}}
Thus, putting it all together:
<<list filter {{'[tag['+new Date().formatString('YYYY0MM0DD')+']]'}}>>
That should do it...
Note: to find tiddlers based on combinations of tag values using
Boolean logic (and/or/not), e.g.,
"Tag1 and (Tag2 or not (Tag3 or Tag4))"
please see:
http://www.TiddlyTools.com?#MatchTagsPlugin
http://www.TiddlyTools.com?#MatchTagsPluginInfo
enjoy,
-e
Eric Shulman
TiddlyTools / ELS Design Studios
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