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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.
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
@ -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.//
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.