Hi Tony,
I think, you are mixing up fundamentally different things (fields,
variables and macros), and that gives you a headache. I'll try to point you
into the right directions.
On Sunday, July 16, 2017 at 4:18:03 AM UTC+2, TonyM wrote:
> Using field values in my primary tiddler,
>
Fields are an integral part of the tiddler. So whenever you access eg:
HelloThere all the fields that are defined with it, are also there. Fields
always live in the context of the current tiddler.
eg:
HelloThere has a "list-field" ... You can access this field from everywhere
with {{HelloThere!!list}}
If you want to transclude the "text-field" you can use {{HelloThere!!text}}
Because we are lazy folks, we don't want to type too much there is a
convenient function built in to TiddlyWiki: "whenever a transclusion is
specified, the text field is used as the default field value
<http://tiddlywiki.com/#TranscludeWidget>." So we can write: {{HelloThere}}
if we want the content.
Sometimes we don't want to specify the tiddler title, because it should be
dynamic. So we want to use: {{!!list}}. TW has a problem now. The tiddler
title is not defined anymore. ... That's why a sensible default is used:
The <<currentTiddler>> variable. This currentTiddler variable is set by
the ViewTemplate
<https://github.com/Jermolene/TiddlyWiki5/blob/master/core/ui/ViewTemplate.tid#L9>,
with the tiddler widget
<http://tiddlywiki.com/#TiddlerWidget:TiddlerWidget%20%5B%5BcurrentTiddler%20Variable%5D%5D%20%5B%5BstoryTiddler%20Variable%5D%5D>.
The transclude-widget uses the currentTiddler variable, but doesn't set it!
That's important!!!!
Let's create 2 test tiddlers: *outer* and *inner*. Where outer is the
primary tiddler, that transcludes the inner tiddler. The inner tiddler
want's to access the primary-field ... That's what you want. right?
*outer* .... defines a field eg: primary-field: PRIMARY
outer:text
outer: {{!!primary-field}}
inner: {{inner}}
-----
*inner *
{{!!primary-field}}
----------------
This doesn't work, because {{inner}} sets the currenTiddler variable to
"inner". So we need to change outer to:
*outer:*
inner: {{||inner}}
or
inner: <$transclude tiddler=inner/>
So the currentTiddler variable isn't changed and the inner tiddler sees the
primary-field. We call this mechanism "Transcludion with Templates
<http://tiddlywiki.com/#Transclusion%20in%20WikiText:%5B%5BTransclusion%20in%20WikiText%5D%5D%20%5B%5BTransclusion%20with%20Templates%5D%5D>"
.... inner is a template now.
... part 1 .... more to follow
hope that helps a bit
have fun!
mario
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