StS
November 12, 2023, 12:07pm
1
Hello forum,
I need help:
I’m writing a text into a field tag_selection of tiddler $:/temp/Suche/Phrasetag_selection and let them count.
If tag_selection is empty, the count is 0.
The goal is to show the count only, if the tag_selection is not empty
<$let tag_selection={{$:/temp/Suche/Phrase!!tag_selection}}>
(<$text text={{{ [!is[system]search::literal{$(searchTiddler)$}] :filter[enlist{!!tags}prefix<tag_selection>] +[count[]] }}}/>)
How can that be done?
Thanks for feedback.
tw-FRed
November 12, 2023, 12:56pm
2
Hi @StS
Try adding +[!match[0]] at the end of your filter, it will mask the result when it’s 0.tag_selection being empty, then you should be good to go.tag_selection is empty, then this simple solution won’t be enough.
Fred
Instead of using a simple $let widget to get the tag_selection field value, use a $list widget, like this:
<$list variable="tag_selection" filter="[[$:/temp/Suche/Phrase]get[tag_selection]]">
The get[tag_selection] filter operator will only return a result if the tag_selection field has non-blank content. When the field contents ARE blank, the filter result is empty, and entire the body of the $list widget is skipped.
enjoy,
StS
November 12, 2023, 2:17pm
4
Hi @tw-FRed , @EricShulman , it was not successful.
Here an exampe to explain it better (= it’s an additional “subfilter”):tag_selection is filled and counted → ok:
tag_selection is empty and only the count is shown.
I only want to see the count, if the tag_selection is not empty
Can that be archieved with an if/else in the code?
Thanks, Stefan
tw-FRed
November 12, 2023, 3:09pm
5
Ok, so instead of my previous solution, you can append :filter[<tag_selection>!is[blank]] to your filter.
It worked in this simplified example code:
<$edit-text field=tag_selection/>
<$let tag_selection={{!!tag_selection}}>
{{{ [enlist<tag_selection>] +[count[]] :filter[<tag_selection>!is[blank]] }}}
</$let>
Fred
StS
November 12, 2023, 3:55pm
6
Thanks, that works as expected
tw-FRed
November 12, 2023, 4:48pm
7
I just tested @EricShulman ’s solution and it also works in my example.
<$edit-text field=tag_selection/>
<$list variable=tag_selection filter="[<currentTiddler>get[tag_selection]]">
<$text text={{{ [enlist<tag_selection>] +[count[]] }}}/>
</$list>
His solution is even better than mine because when tag_selection is empty, the <$text> widget and the filter are not rendered, so it uses less resources.
Fred
Has everyone forgotten the difference between has[fieldname] and has:field[fieldname] ?
The first is only true if field name has a value, the second only if the field exists empty or otherwise.
Also get[fieldname] only returns a value if there is one.
To test for a specific value else nothing use fieldname[value] or <value> etc… Possibly also !fieldname<value>
On all of the above set the current tiddler first.
StS
November 13, 2023, 10:59am
9
Hi @tw-FRed ,
replacng the $let witget with @EricShulman ’s solution will not do the additional subfilter of tag_selection and the count is always 1
instead of using enlist<tag_selection>, try this:
<$list variable=tag_selection filter="[<currentTiddler>get[tag_selection]]">
<$text text={{{ [subfilter<tag_selection>count[]] }}}/>
</$list>
This will allow processing of any filter syntax contained within the tag_selection value. Alternatively, try using just the $count widget, like this:
<$count filter={{!!tag_selection}}/>
-e
StS
November 13, 2023, 1:27pm
11
Hi @EricShulman ,
this is the working code:
\define phrase()
<span style="font-size: 0.7em; font-weight: 600; color: rgba(204, 204, 255, 0.6); border-bottom: 1px solid rgba(204, 204, 255, 0.6);">
//... als Phrase://
</span>
<span style="font-size: 0.7em; color: rgb(144, 238, 144);"><$text text={{{ [!is[system]search::literal{$(searchTiddler)$}count[]] }}}/></span>
<span style="font-size: 0.5em; color: rgba(204, 204, 255, 0.6); margin-left: 2em;"> {{$:/temp/Suche/Phrase!!tag_selection}}</span>
<div class="show_tag_in_search"> ... Suche einschränken auf: <$edit-text tiddler="$:/temp/Suche/Phrase" field=tag_selection placeholder="Gruppe..." tag=input default=""/>
<$button class="tc-btn-invisible" set="$:/temp/Suche/Phrase!!tag_selection" setTo="" tooltip="Suchfeld löschen"> ↺ </$button>
</div>
<$let tag_selection={{$:/temp/Suche/Phrase!!tag_selection}}>
<span style="font-size: 0.5em; color: rgb(144, 238, 144);"> <$text text={{{ [!is[system]search::literal{$(searchTiddler)$}] :filter[enlist{!!tags}prefix<tag_selection>] +[count[]] :filter[<tag_selection>!is[blank]] }}}/> </span>
<ul class="te-nav-list">
<!-- <$list filter="[!is[system]search:*:literal{$(searchTiddler)$}!sort[erstellt]limit[50]]" template="$:/plugins/telmiger/simple-search/ui/ListItemTemplate"/> -->
<$list filter="[!is[system]search:*:literal{$(searchTiddler)$}] :filter[enlist{!!tags}prefix<tag_selection>] +[!sort[erstellt]limit[50]]" template="$:/plugins/telmiger/simple-search/ui/ListItemTemplate">
</ul>
\end
Replacing the $let part with mentioned code didn’t work → filter with tag_selection has no effect anymore.$:/temp/Suche/Phrase?
