You do realize, Jeremy, that this feature positively begs for a newhere
button to accompany it, so that you can create child tiddlers tagged with
the parent then rearrange the order in the list field...
Dave
On Thursday, August 8, 2013 7:08:15 PM UTC-5, David Gifford wrote:
>
> I do like this change. There are many times when you want things to show
> in a specific order, and alphabetical just doesn't cut it.
>
> Dave
>
> On Thursday, August 8, 2013 11:57:18 AM UTC-5, Jeremy Ruston wrote:
>>
>> A frustration with TiddlyWiki's implementation of tagging is that when we
>> tag a bunch of tiddlers "introduction" or "mainmenu" there's no way of
>> stipulating the order in which those tiddlers should be displayed.
>>
>> In TiddlyWiki5, we can easily transclude all the tiddlers with a
>> particular tag:
>>
>> {{{ [tag[introduction]] |MyTemplate}}}
>>
>> By default, the ordering is unpredictable (it's based on the order in
>> which the tiddlers were added to the internal store).
>>
>> The common way to control the ordering are to prefix the titles of the
>> tagged tiddlers with a number and then sort the titles alphabetically:
>>
>> {{{ [tag[introduction]sort[title]] |MyTemplate}}}
>>
>> A slightly more sophisticated variant is to sort by a custom field eg
>> "ordering":
>>
>> {{{ [tag[introduction]sort[ordering]] |MyTemplate}}}
>>
>> To try to handle this better in TiddlyWiki5, I've added a new standard
>> field called "list" alongside tags, modified, modifier, title etc. The
>> "list" field contains a list of tiddler titles separated by spaces, using
>> double square brackets around titles containing spaces.
>>
>> The new list field is currently used in three different places:
>>
>> * the [list[title]] filter operator now retrieves its list of tiddler
>> titles from the "list" field of the specified tiddler (it used to read the
>> list as a newline delimited list from the text field)
>> * the [tag[title]] and [tagging[]] filter operators now sort their
>> results by the "list" field
>>
>> Sorting by the list field means that any tiddlers that appear in the list
>> field maintain that ordering in the results. Titles that don't appear in
>> the list field appear at the end of the list in natural order.
>>
>> You can see an example on http://five.tiddlywiki.com/:
>>
>> 1. Click on the "introduction" tag pill under the title of the HelloThere
>> tiddler to bring up the tag popup
>> 2. Note how the listed tiddlers are ordered HelloThere, Acknowledgements,
>> Improvements, etc., with Contributing listed at the end
>> 3. Click on the "introduction" link at the top of the tag popup
>> 4. On the "introduction" tiddler, click the info icon, and then select
>> the "fields" tab
>> 5. Observe how the "list" field specifies the tiddler titles in the same
>> order as the dropdown, except that Contributing is not listed, which is why
>> it appears at the end of the dropdown
>>
>> The plan is to add a mechanism for drag and drop reordering of tiddler
>> lists. That will enable us to have drag and drop re-ordering of the "open"
>> tab in the sidebar as well as tag listings.
>>
>> I'm also interested in using tiddler lists to model more complex data
>> structures. For example, a grid could be structured as a list of rows that
>> is each a list of cells.
>>
>> For those interested in the code, the commit that added the "list" field
>> was this one:
>>
>>
>> https://github.com/Jermolene/TiddlyWiki5/commit/be1b16e2600fb56d143a736ab0ae219c243ff45e
>>
>> Then this commit adds the new sorting behaviour to the "tag" and
>> "tagging" filters:
>>
>>
>> https://github.com/Jermolene/TiddlyWiki5/commit/a9a2ae2223c2e25e2f45f03b0c681d0f3f7ba11c
>>
>> I'm quite excited about this change. It's a modest extension of
>> TiddlyWikis core data model that is useful in its own right as well as
>> bringing a new dimension to tagging.
>>
>> Anyhow, it's all fairly mindbending stuff. Do bear in mind that all of
>> this is optional; you can carry on using tags as you always have, and
>> ignore the list field, if you want. I'd welcome any questions or comments,
>>
>> Best wishes
>>
>> Jeremy
>>
>> --
>> Jeremy Ruston
>> mailto:[email protected]
>>
>>
>>
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