Two problems with macro: displaying and refreshing

[Misterel85]

Hi,
I'm back to work on a TiddlyWiki to manage my collection of drama exercises, but I came across 2 problems with displaying their sources and refreshing that display.

Problem #1:

My 'exercises' tiddlers all refer to a 'SourceDisplay' macro to show the sources.
If I use a field to trigger the macro to show or hide the sources, they appear in 'Exercise1' tiddler, but not in 'Exercise2'. If I paste
<<SourceDisplay prefix:"ref_">> in the text field of each of the Exercise tiddlers, it works fine.
I suppose something like 'qualify' might solve the trick, but I don't know how to use it. Perhaps any of you has a better solution to suggest anyway, but I can make do with copying-pasting the macro call.

Problem #2 (more serious to me):
I changed the contents and title of tiddler "source1" to a more realistic name ('Dramaction' here) and contents and updated the the fields accordingly.

I made 4 dummy source tiddlers. When I deleted the 'ref_source1' field in 'Exercise1' and replaced it with a 'ref_dramaction' field, I also noticed that there were now 4 sources in the list instead of 3. One line is blank, which I suppose is the ghost of 'source1', without any data, of course, since that content doesn't exist any more. It's as if old 'source1' data wasn't purged, or TW still expected that content to exist alongside the new 'dramaction' content. It also happens every time I delete one of those fields.

Also, when I delete the 'ref_source1' field in 'Exercise2', the list of sources gets updated in 'Exercise1', but not in Exercise2, which showed the same problem as in the previous paragraph.

Thanks in advance for your help.


Here is the link to a MWE you can download, to see what I mean:

https://u.pcloud.link/publink/show?code=XZmdnCXZmtUJk3s4tCfxvYwlXQmYnXrL8RJV

And below is the macro I am talking about:

```
\define SourceDisplay(prefix:"")
<$set name="fieldCount" filter="[fields[]prefix[$prefix$]count[]]">
<$text text={{{ [<fieldCount>match[0]then[Pas de ]else<fieldCount>] }}} />
<$text text={{{ [<fieldCount>!match[1]then[sources :]else[source :]]  }}} />
</$set>
<span class="source">
<ul>
<$list filter="[fields[]prefix[$prefix$]sort[title]]" variable="fieldName">
<li>
<$transclude field=<<fieldName>>/>
</li>
</$list>
</ul>
</span>
\end
```

[springer]

Misterel,

I am *not* the expert; others could probably write the code you need in 60 seconds. But since nobody else has answered, and understanding your task and its problems demands some time and attention, I'll offer one nudge to start...

It seems you want your macro to count (and then display one summary line for) each of the CURRENT tiddler's fields that start with ref_ -- Is that correct?

Instead, your macro is counting (and then displaying one summary line for) every field in your whole wiki that begins with ref_

Try pasting your code (with the variable filled in) and this alternate code, into your Exercice1 tiddler. Your code yields 5, because the whole project had five ref_ fields; but beginning your filter with [all[current] gets you the number you want.

First segment of your existing macro's code (specifying the prefix):

<$set name="fieldCount" filter="[fields[]prefix[ref_]count[]]">

<$text text={{{ [<fieldCount>match[0]then[Pas de ]else<fieldCount>] }}} />
<$text text={{{ [<fieldCount>!match[1]then[sources :]else[source :]] }}} />
</$set>

Better:

<$set name="fieldCount" filter="[all[current]fields[]prefix[ref_]count[]]">

<$text text={{{ [<fieldCount>match[0]then[Pas de ]else<fieldCount>] }}} />

<$text text={{{ [<fieldCount>!match[1]then[sources :]else[source :]]  }}} />

</$set>

All I'm doing here is the technique in https://groktiddlywiki.com/read/

That is: breaking down a complex problem into smaller bits, and getting your macro to count right *before* trying to set it up in the ViewTemplate with an additional variable for the prefix and an additional condition for displaysource[yes].  

Alas, I need to switch to other tasks, but I hope you're on the road to getting the behavior you need.

-Springer

[Misterel85]

Springer,
Thanks a lot for taking the time to reply and for your help.

You're exactly right: I'd like my macro to count (and then display one summary line for) each of the fields that start with ref_ in every tiddler in the story river.

I have tried your solution to add `all[current]` in my macro but unfortunately it doesn't work.
Actually because the macro is in its own tiddler, I think `all[current]` tries to find the ref_ fields in the macro's tiddler. But I may be wrong.

Grok TiddlyWiki is a great tool to learn, but I haven't finished reading it, and it needs time to figure out all the intricacies of (TW) programming when your coding knowledge amounts to next to nothing.

Regards

[Misterel85]

Hi everyone,

With Springer's help and and bit of googling around, I finally found a (basic) working solution. Yay!
It is much simpler to use a ViewTemplate instead of a macro and it should satisfy most of my needs.

Should it be useful to anybody, here is the code I used in the ViewTemplate to replace the macro:

```
<$list filter="[all[current]field:tiddler-type[exercice]field:displaysource[yes]]">

<$set name="fieldCount" filter="[all[current]fields[]prefix[ref_]count[]]">
<$text text={{{ [<fieldCount>match[0]then[Pas de ]else<fieldCount>] }}} />
<$text text={{{ [<fieldCount>!match[1]then[sources :]else[source :]]  }}} />

</$set><ul>
<$list filter="[all[current]fields[]prefix[ref_]sort[title]]" variable="fieldName">
@@color:grey;

<li>
<$transclude field=<<fieldName>>/>

</li>@@
</$list>
</ul>
</$list>
```
I can't believe how great and versatile TiddlyWiki is!!

Regards

[TW Tones]

Thanks for sharing your result back here Misterel, it is great community participation.

Yup, TiddlyWiki is so awesome.

With the name Misterel, makes me think of thew Mistrals and "Pas de" in your code I imagine you may be in the south of France? We have friends in a place called Castries not far from Montpelier, it was there I saw the result of the Mistrals (winds) in their back yard with every tree leaning away from the wind. Strangely whilst their house was a modern Spanish style, their pool and barbeque area was quite similar to nice homes here in Australia.

We miss France terribly, and can't wait to visit again. My partner Isabelle's mother remains in Paris and we have family all over France/Portugal.

Tones/Tony

[Misterel85]

Ciao Tones,
An interesting guess you've tried to make here. Well, you could have added the similarity of the name I chose here with the 'massif de l'Esterel', a mountain range between Cannes and Saint-Tropez!

Well, that alias is closer to English than French, actually. It dates back to my year as a French assistant in Scotland. Some pupils at the boarding house didn't bother call the tutors by their full name, so they used the initial of the family name: 'Mr. T.', 'Mr. S.' or, in my case, 'Mr. L.'...

I'm sorry to disappoint you but I'm from the West of France. I live near Nantes, and my parents' house was very close to 'Le Puy du Fou' a renowned sound-and-light show about the history of the area. The French dialect I would use is probably closer to Charlie Veniot's Acadian French than to Occitan, I'm afraid. I enjoyed reading some words and phrases in his 'Le P'tit Aurèle', and could understand most of them at first glance, since were also used by my the elders in my family.

I do miss travelling as well, although I don't know France that much. I'm more used to visiting English-speaking countries.

Stéphane L.