TiddlyWiki5/editions/tw5.com/tiddlers/widgets/JSONTiddlerWidget.tid

title: JSONTiddlerWidget
created: 20210630100923398
modified: 20210630100923398
tags: Widgets
caption: jsontiddler

! Introduction

The jsontiddler widget renders the fields of a tiddler to display as a JSON object. The fields of the tiddler can be customised or excluded.

The jsontiddler widget is used in system templates to generate JSON representations of tiddlers for saving.

! Content and Attributes

The content of the `<$jsontiddler>` widget is ignored.

|!Attribute |!Description |
|tiddler |Optional title of the tiddler from which the fields are to be displayed |
|exclude |Optional space separated list of fields to be excluded |
|escapeUnsafeScriptChars |If set to "yes" then the `<` character will be escaped to the equivalent `\u003C` encoding |
|//{any attributes starting with $}// |Each attribute name (without the leading `$`) specifies a field to be modified with the attribute value providing the value to assign to the field  |
Add support for JSON-formatted tiddler store, and make it the default (#5708) * Add support for JSON-formatted tiddler store, and make it the default The change to `getTiddlersAsJson()` is to allow experimentation * Move JSON tiddlers into their own store area, and fix support for encrypted tiddlers Also add a dummy old-style store area for backwards compatibility The current arrangement is that JSON tiddlers will always override old-style tiddlers. * Use the deserialiser mechanism to decode the content * Refactor $:/core/modules/deserializers.js before we start extending it Cleaning up the helper function names and ordering * Drop support for the "systemArea" div It was only used in really old v5.0.x * Update deserializer to support JSON store format and add some tests * Life UI restrictions on characters in fieldnames * Add another test case * Correct mis-merge * Remove toLowerCase() methods applied to fieldnames * Insert line breaks in output of getTiddlersAsJson (#5786) Rather than have the entire store on one line, insert a line break after each tiddler. * Refactor #5786 for backwards compatibility * Only read .tiddlywiki-tiddler-store blocks from script tags Prompted by @simonbaird's comment here: https://github.com/Jermolene/TiddlyWiki5/pull/5708#discussion_r648833367 * Clean up escaping of unsafe script characters It seems that escaping `<` is sufficient * Add docs from @saqimtiaz Thanks @saqimtiaz * Docs tweaks * Remove excess whitespace Thanks @simonbaird * Fix templates for lazy loading * Remove obsolete item from release note * Clean up whitespace * Docs for the jsontiddler widget * Fix whitespace Fixes #5840 * Comments * Fix newlines in JSON store area * Remove obsolete docs change Co-authored-by: Simon Baird <simon.baird@gmail.com> 2021-07-14 08:15:30 +00:00			`title: JSONTiddlerWidget`
			`created: 20210630100923398`
			`modified: 20210630100923398`
			`tags: Widgets`
			`caption: jsontiddler`

			`! Introduction`

			`The jsontiddler widget renders the fields of a tiddler to display as a JSON object. The fields of the tiddler can be customised or excluded.`

			`The jsontiddler widget is used in system templates to generate JSON representations of tiddlers for saving.`

			`! Content and Attributes`

			The content of the `<$jsontiddler>` widget is ignored.

			`\|!Attribute \|!Description \|`
			`\|tiddler \|Optional title of the tiddler from which the fields are to be displayed \|`
			`\|exclude \|Optional space separated list of fields to be excluded \|`
			\|escapeUnsafeScriptChars \|If set to "yes" then the `<` character will be escaped to the equivalent `\u003C` encoding \|
			\|//{any attributes starting with $}// \|Each attribute name (without the leading `$`) specifies a field to be modified with the attribute value providing the value to assign to the field \|