I think something more powerful would be to add a data parameter to
the tiddler macro.
Have had a few discussions with Jeremy around this.
It would work like so:
<<tiddler MyTemplate data:foo>>
This would render the tiddler MyTemplate in the context of the tiddler
foo.
So for instance if the text of MyTemplate looks like this:
<<view title>> was last modified on <<view modified>>
You would get:
foo was last modified on {date}
where {date} is the value of foo's modified field.
I have some working code I am still finalising, but I wonder if this
would solve your problem with the benefit of clearer code.
On 15 Nov, 18:27, Michael Mahemoff <[email protected]> wrote:
> On Sat, Nov 14, 2009 at 2:16 PM, Eric Shulman <[email protected]> wrote:
>
> >> > At present, transclusion only allows a list of parameters, which are
> >> > declared in the template as $1 to $9. I wonder if there are any plans
> >> > to (a) allow named parameters; and (b) support more than 9 parameters.
> >> I don't think it's come up before, though it might be nice.
> >> Having said that, it shouldn't be too hard to create a plugin (perhaps
> >> using supplant*), which might eventually be integrated into the core.
>
> > Jeremy and I discussed this a very long time ago, and I've actually
> > implemented something *like* this in several different plugins (but
> > not with the <<tiddler>> macro handler).
>
> > I also have an existing core tweak for the <<tiddler>> macro -- to fix
> > refresh handling for transclusions with params -- that could be
> > extended to add pre-processing for named params in addition to the
> > current $1 to $9 markers.
>
> > For each named param (e.g., "name:foo") passed in the macro, any
> > instances of "$name" in the target tiddler will be replaced with the
> > corresponding value. Note: occurrences of "$somename" within the
> > tiddler will be left unchanged if "somename" is *not* used as a param
> > in the tiddler macro.
>
> > Also, because of the manner in which parseParams() works, all
> > positional params must be specified either before or after any named
> > params (i.e., you can't mix named params in the middle of the
> > positional params). Thus:
>
> > <<tiddler SomeTiddler with: p1 p2 p3 name1:val name2:val>>
> > or
> > <<tiddler SomeTiddler name1:val name2:val with: p1 p2 p3>>
> > but *NOT*
> > <<tiddler SomeTiddler with: p1 name1:val name2:val p2 p3>>
>
> Very interesting Eric. It'd be neat to see you integrate that into
> your patched tiddler macro.
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