Subject: Re: [tw] Re: [TW5] Desirable core additions


Confirmed working, with the placement of the </set> like Marks </wikify> at the end of the tiddler with all calls to subtiddlers in the "content" of the set statement.


On Friday, August 11, 2017 at 9:41:50 PM UTC+10, TonyM wrote:Thanks Arlen

I will revisit that because I had eliminated is from the combinatorial complexity, possibly not realising the difference between  $(constantname)$ and <<constantname>>


On Friday, August 11, 2017 at 9:10:03 PM UTC+10, Arlen Beiler wrote:Here is the documentation for the set widget
And you use it like 
<$set name="constantname" value=((!!field}}>

Then all the child elements of the tag (think xml), will have that variable available to them. In a macro you can also use
\define editnsave(field)
<$vars tid="$:/temp/$(currentTiddler)$" fld="$:/temp/$(currentTiddler)$!!$field$" fldx="{{$:/temp/$(currentTiddler)$!!$field$}}" >

$field$: <$edit-text tiddler=<<tid>> field="$field$" default={{!!$field$}}  tag="input"/>
<$button>Save<$wikify name=val text="<<fldx>>"><$action-setfield  $field="$field$" $value=<<val>> /></$wikify>

\end as a placeholder, and the value will be inserted as is before the macro is evaluated. I think it is a constant, meaning child elements can't change it, but it will be updated if the value source changes, I believe.
That's one thing you will discover about this group. We might not have it all together, but together we have it all. 
On Fri, Aug 11, 2017 at 12:27 AM, 'Mark S.' via TiddlyWiki <tiddl...@xxxxxxxxxxxxxxxx> wrote:
Ok. There's a couple things going on. One a mistake. One a semi-bug. And one probably a slight UTF8 cut and paste error.

In your application template, you forgot to close off <$wikify> with the closing </$wikify> tag. In addition, and I know this shouldn't really matter, but sometimes you need to stack your closing tags on top of each other instead of appending them to each other. That's a semi-bug IMHO. Anyway, your closing set of tags need to look like:


If they're not stacked like this, the formatting below doesn't work right. Probably someone can explain why, but it's a mystery to me.

Next, go to the "Edit and Save Field" tiddler and delete the existing $:/tags/Macro . There's something wrong with it. My guess is that you copied and pasted it from the forum, and it contains a hidden character. Type the $:/tags... again, and as you do the system should offer you $:/tags/Macro at the BOTTOM with the other system tiddlers. Select that $:/tags/Macro tag. ALSO, be sure to update the macro with the IMPROVED macro I provided (the one you have is the first draft).

After these changes, the formatting and macro should function well enough to ... be tweaked.

Have fun,

On Thursday, August 10, 2017 at 6:48:53 PM UTC-7, TonyM wrote:Mark,

Sorry, but it is hard to explain what I want without reference to how to accomplish it when there are a lot of terms I am still becomming familular with.

Of course I did ask at the top of the post "Edit fields in Current Tiddler"

I have published a version of my work at use the table of contents to select applications and "application template" tiddlers. The Bottom of which "application template" has some attempts to use editnsave. Your replys suggest you do know what I need and Edit and save may be the answer. I would like edit and save to reference fields in the Application templaye (or its copies) and allow sub tiddlers (in tabs) to use it as well. All  Most tiddlers are tagged "Object Dev".

The Site itself is DRAFT only

I have actualy spent more time building the demo than reinvestigating the editnsave issue. But I have published to make it visible.

I will look into it further after I get some real work done :)


On Friday, August 11, 2017 at 9:14:29 AM UTC+10, Mark S. wrote:It's better if you explain what it is that you want to accomplish than insist on how it gets accomplished.

The variable <<currentTiddler>> is available to all "children" of a tiddler, assuming that by children you mean transcluded or templated tiddlers. If you have some other interpretation of what children are, then you need to explain what you want to accomplish.

If you have a tiddler with several transclusions, and then clone that tiddler, all the transclusions of the clone will then use their <<currentTiddler>> value.

Good luck,

On Thursday, August 10, 2017 at 3:52:30 PM UTC-7, TonyM wrote:A Quick description, I hope it helps

TiddlerA has a title or field name
To set a constant you need to define a "variable" using the value of the tiddler title or field, however when you use any reference to the title or field it will be a string that refers to the field not the current value of the field. As a result it gets wikified in context and may refer to another tiddlers title or field depending on where it is used.
I have used two variable names and wikify to partially solve this. Quite cumbersome and it took time to find this solution. The ability to use the constant still seems limited.
\define currentobjectsrc() {{!!title}}\end<$wikify name="currentobject" text=<<currentobjectsrc>>>
I can now use the value in subtiddlers using <<currentobject>> but only where this is valid. It retains its value (in this case "the text "TiddlerA" in all subtiddlers, Can I use nested {{{}}} or something to make this work in macros and filters ? I am still trying to learn the different ways in the different widgets macros, template tiddler etc... Actually I know the answer to this it is documented at however it is very contextual.

Perhaps there is a specific use of $set that is available to me, but I have not found it yet. It would be great if I could use a simple command like<$set Constant=constantname value=((!!title}}>
Such the constantname now contains "TiddlerA" and can be accessed by various and consistent means in all subTiddlers (those called/Transcluded) by TiddlerA
To be clear I want to use {{!!title}} not {{TiddlerA!!title}} because I do not want to hard code "TiddlerA" into the TiddlerA tiddler because when cloned or copied it will have a new name or a different value in a field.
I have found many of the documented syntax or examples refer to "somename" rather than a name derived from a field, that does not change with tiddler or context.
I will try and publish into on my project soon, and perhaps there are other ways do achieve what I am doing. 
I am now in the process of memorising a "dozen" "substitution rules" to understand this.
Thanks For the help.

On Friday, August 11, 2017 at 5:11:35 AM UTC+10, Danielo Rodríguez wrote:I'm still not understand why the set widget does not work for you. It sets a variable with certain name and that variable is accessible to all it's children . How is your requirement different ?

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