> I'm thinking of making a TW into a geneology database. The title in
> every tiddle gonna be the persons name. The I'm gonna put in the
> display area this information:
> Firstname Lastname was born 1854-04-01 in Ghosttown, Spokane, USA son
> of [[Big Lastname]] and [[Mrs Lastname]]
...
> So I wanna be able so make a search in every tiddler and looking for a
> certain birthdate and the result should be a new tiddler with the
> birthdate as the title and in the display area all the people that are
> born that certain date I search for
Instead of using free-form text to enter your content into each
tiddler, if you use some special formatting for the content, then they
can be used programmatically as 'tiddler slices' (addressable name-
value pairs, stored in the tiddler's text content). For example, in a
tiddler named [[John Smith]], you could write:
First: John
Last: Smith
Born: 1854-04-01
Place: Ghosttown, Spokane, USA
Father: Big Lastname
Mother: Mrs Lastname
Then, you can use macros like:
<<tiddler [[JohnSmith::Place]]>>
which displays:
Ghosttown, Spokane, USA
and, you can programmatically access slice values, too. For example,
using ForEachTiddlerPlugins's <<forEachTiddler>> macro, you can write:
<<forEachTiddler
where
'store.getTiddlerText(tiddler.title+"::Born","").startsWith
("1854")'
sortBy
'store.getTiddlerText(tiddler.title+"::Last","")'
ascending
write
'"|"+store.getTiddlerText(tiddler.title+"::First","")
+"|"+store.getTiddlerText(tiddler.title+"::Last","")
+"|"+store.getTiddlerText(tiddler.title+"::Born","")
+"|\n"'
>>
enjoy,
-e
note: for a discussion/explanation of slices, see:
http://groups.google.com/group/tiddlywiki/browse_frm/thread/e1ec74a3feef9069#
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