Introduction
The action-deletefield widget is an action widget that deletes specified fields of a tiddler. ActionWidgets are used within triggering widgets such as the ButtonWidget.
Content and Attributes
The action-deletefield widget is invisible. Any content within it is ignored.
| Attribute | Description |
|---|---|
| $tiddler | The title of the tiddler whose fields are to be modified (if not provided defaults to the current tiddler) |
| $field | Optional name of a field to delete |
| $timestamp | New in v5.3.4 Specifies whether the timestamp(s) of the target tiddler will be updated (modified and modifier, plus created and creator for newly created tiddlers). Can be "yes" (the default) or "no" |
| {any attributes not starting with $} | Each attribute name specifies a field to be deleted. The attribute value is ignored and need not be specified |
Examples
Here is an example of a button that deletes the caption and tags fields of the current tiddler:
<$button>
<$action-deletefield caption tags/>
Delete "caption" and "tags"
</$button>That renders as:
Here is an example of a button that deletes the modified date and tags fields of the tiddler HelloThere:
<$button>
<$action-deletefield $tiddler="HelloThere" modified tags/>
Delete "modified" and "tags" from ~HelloThere
</$button>That renders as:
Here is an example of a button that uses the optional $field attribute to delete the text field of the tiddler HelloThere:
<$button>
<$action-deletefield $tiddler="HelloThere" $field="text"/>
Delete text from ~HelloThere
</$button>That renders as: