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https://github.com/Jermolene/TiddlyWiki5
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The trouble with the previous approach of storing several settings in a single data tiddler was that it made it hard to introduce new settings. Users who already have a custom copy of the settings/metrics tiddler wouldn’t get the default settings. The new approach uses individual tiddlers for each setting. This commit also introduces a new theme tweak for the cutoff width for switching between responsive views.
49 lines
1.4 KiB
Plaintext
49 lines
1.4 KiB
Plaintext
created: 201308291647
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modified: 201308291647
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tags: concepts
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title: DataTiddlers
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Data tiddlers provide a way to access blocks of [[JSON]] data within the `text` field of a tiddler.
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//The implementation of data tiddlers is preliminary, with some intentional limitations.//
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! Data tiddler format
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A native data tiddler must have:
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* The ContentType field `type` set to `application/json`
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* Valid JSON data in the `text` field
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For example, the [[history list|$:/HistoryList]] tiddler is a data tiddler.
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Other tiddler types with alternative formats can also be parsed to yield a block of data that behaves like a data tiddler.
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!! Tiddler dictionary format
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The tiddler dictionary format is an alternative syntax for data tiddlers:
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* The ContentType field `type` is set to `application/x-tiddler-dictionary`
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* The `text` field consists of one or more lines of the form `<name>:<value>`
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For example, palettes such as the [[default Vanilla palette|$:/palettes/Vanilla]] are tiddler dictionaries.
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! Accessing data within data tiddlers
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Currently, it is only possible to access the top level properties of the data using TextReference syntax.
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For example, given a `application/json` tiddler containing:
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```
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{"a":"one","b":"two","c":"three"}
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```
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Or the equivalent tiddler dictionary of type `application/x-tiddler-dictionary`:
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```
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a:one
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b:two
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c:three
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```
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With either of those definitions `{{TiddlerTitle##b}}` would have the value `two`.
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