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TiddlyWiki5/editions/tw5.com/tiddlers/howtos/How to create a custom story tiddler template.tid

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created: 20211204120244761
modified: 20211206165108185
tags: Learning Cascades [[Story Tiddler Template]] [[Story Tiddler Template Cascade]] [[Customise TiddlyWiki]]
title: How to create a custom story tiddler template
type: text/vnd.tiddlywiki
Here we show how to add a rule to the [[Story Tiddler Template Cascade]] that causes tiddlers tagged <<tag "$:/tags/TiddlerList">> to be displayed with a custom appearance incorporating thumbnails of the tiddlers named in the list field.
Open [[Demo Tiddler List with Custom Story Tiddler Template]] to see the demo.
First, we add a new step to the story tiddler template cascade. The new filter step is:
```
[tag[$:/tags/TiddlerList]then[$:/_tw5.com/CustomStoryTiddlerTemplateDemo/Template]]
```
It can be read as:
```
If the tiddler has the tag $:/tags/TiddlerList then return $:/_tw5.com/CustomStoryTiddlerTemplateDemo/Template
```
> The template $:/_tw5.com/CustomStoryTiddlerTemplateDemo/Template also depends on styles defined in [[$:/_tw5.com/CustomStoryTiddlerTemplateDemo/Styles]].
The story tiddler template cascade is defined by the tag <<tag "$:/tags/StoryTiddlerTemplateFilter">>, so we need to create a configuration tiddler with that tag.
We also need to make sure that it is inserted at the correct point in the cascade:
* The new rule must be after the "draft" rule to ensure that draft tiddlers with the tag $:/tags/TiddlerList can be edited
* The new rule must be before the "default" rule otherwise it will never be executed
The control panel "Cascades" tab shows that this can be achieved by inserting the new step immediately before the default step using the `list-before` field.
The full list of fields in the configuration tiddler is:
<<.tiddler-fields "$:/_tw5.com/CustomStoryTiddlerTemplateDemo/Filter">>
Finally, we need to create the demo tiddler itself:
<<.tiddler-fields "Demo Tiddler List with Custom Story Tiddler Template">>