How do I get a list of tiddlers from a filter and then manipulate the fields / tags on each in a loop?

[leeand00]

I'm aware there are widgets that will modify them...for instance <$action-listops>

can modify fields, but I don't know how to use a filter like [tag[some-tag-they-all-have]sort[create-or-mod-date]] and to loop through them performing a similar action on each.

I'd also like to be able to include an index, or obtain them sorted by create-or-modification date.

Thank you,

    Andrew J. Leer

[Mat]

This is the basic idea

<$button>
execute
<$list filter="...">
<$action-setfield .... />
</$list>
<$/button>

Ref 

https://tiddlywiki.com/#ActionSetFieldWidget

<:-)

[Mat]

Ah, last part should be </$button>

<:-)

[Xavier Cazin]

Hi Andrew,

Action widgets can only be triggered by a user action, like clicking on a button, dropping a tiddler, or loading the wiki. They can't be triggered by, say, the $list widget, eventhough you may use a $list to produce some of the action strings.

\define done() 
<$action-listops $tags="done"/>
<$action-sendmessage $message="tm-copy-to-clipboard" $param=<<now>>/>
<$list filter="[tag[bar]]">
  <$action-setfield foo="done"/>
</$list>
\end

<$checkbox checkactions="<<done>>"> Is it done?</$checkbox>

In the example above, the list of actions to be executed when the box gets checked are grouped in a macro.

The list of actions to be executed are most often passed to the control widget via an actions attribute.

Best,

-- Xavier

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