ActionDeleteFieldWidget

20th February 2015 at 4:20pm

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
{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: