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More documentation about named properties (#2481)

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* Made the link between "names" and "properties" explicit (I only figured it out by reading the TextReference documentation)
* Documented named property manipulation through ActionWidgets.
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maxthomax 2016-06-09 23:09:16 +02:00 committed by Jeremy Ruston
parent 776d42c330
commit a9c4f113a1
1 changed files with 3 additions and 1 deletions
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editions/tw5.com/tiddlers/concepts/DataTiddlers.tid
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@ -12,7 +12,7 @@ There are two standard formats:
Other formats of tiddler can also be parsed to yield blocks of data that behave like data tiddlers. Other formats of tiddler can also be parsed to yield blocks of data that behave like data tiddlers.
Use a TextReference to look up a value by its name. For example, if a [[DictionaryTiddler|DictionaryTiddlers]] called `MonthDays` contains: Use a TextReference to look up the value of a named property. For example, if a [[DictionaryTiddler|DictionaryTiddlers]] called `MonthDays` contains:
``` ```
oct:31 oct:31
@ -29,3 +29,5 @@ The same is true if `MonthDays` is a [[JSONTiddler|JSONTiddlers]] with the follo
``` ```
Note: //It is currently only possible to retrieve data from the immediate properties of the root object of a JSONTiddler.// Note: //It is currently only possible to retrieve data from the immediate properties of the root object of a JSONTiddler.//
The widgets ActionSetFieldWidget and ActionListopsWidget can manipulate named properties of data tiddlers by indicating the name of the property in the $index attribute. To create or modify a named property with ActionSetFieldWidget, provide a $value attribute. To delete a named property with ActionSetFieldWidget, omit the $value attribute. ActionListopsWidget assigns the named property the list constructed through its $filter and $subfilter attributes.