You can do something like this.
!!!This removes a tag from every tiddler that has it
> Be careful. There is no undo.
> <table>
> <tr>
> <td>
> remove
> </td>
> <td>
> <$select tiddler=<<currentTiddler>> field="tagtoremove" default='notset'>
> <$list filter='[all[tiddlers]tags[]sort[]]'>
> <option value=<<currentTiddler>> field="tagtoremove"><$view
> field='title'/></option>
> </$list>
> </$select>
> </td>
> <td>
>
> <$set name="oldTag" value={{!!tagtoremove}}>
> <$button>
> <$list filter="[all[shadows+tiddlers]tag{!!tagtoremove}]">
> <$fieldmangler>
> <$action-sendmessage $message="tm-remove-tag" $param=<<oldTag>>/>
> </$fieldmangler>
> </$list>
> Click me!
> </$button>
> </$set>
>
> </td>
> </tr>
> <tr>
> <td>
> </td>
> <td>
> <$list filter="[all[shadows+tiddlers]tag{!!tagtoremove}]">
> <$link>{{!!title}}</$link>
> </$list>
> </td>
> <td>
> </td>
> </tr>
> </table>
I just re-purposed this from a similar widget I have that swaps one tag for
another. I tested this version just now and it seems to work but please
back-up your wiki before you use it.
Regards,
Richard
On Sunday, April 30, 2017 at 12:38:15 AM UTC+10, Jeff Vance wrote:
>
> Not sure if this is possible: I have about 100 tiddlers that have a
> certain tag. I decided I don't want that tag to exist anymore, but keep
> all those tiddlers since they are also tagged by other things. Is there a
> way to remove the tag from every tiddler in one operation? I don't want to
> manually edit all of them!
>
>
>
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