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How to: Limit Post navigation to posts with the same tag?

March 15, 2023 at 8:07 pm #9570

[anonymous]

Say I have a site with the following posts:

Comic page 1 [tags: Comic]

Comic page 2 [tags: Comic]

Comic page 3 [tags: Comic]

Home page [tags: None]
About Page [tags: None]

Sketchbook page 1 [tags: Sketch]

Sketchbook page 2 [tags: Sketch]

Sketchbook page 3 [tags: Sketch]

If someone is on a comic page, I only want the navigation to go to previous and next comic posts.
If someone is on a sketch page, I only want the navigation to go to previous and next sketch post.

Thus far my only solution idea I’ve come up with is to use separate “sites” for each tag I want to have it’s own navigation.

March 15, 2023 at 9:41 pm #9572
[anonymous]
You can create your own Handlebars helpers. Take a look at the example here. In your case I think you’d do something like this:
- have a `prevForTag` helper and a `nextForTag` helper;
- have each helper take a tag, a post, and the list of posts;
- find the current post in the list; and
- scan backwards or forwards looking for the previous or next post with the given tag.
Maybe not exactly that, but maybe something like that.
March 17, 2023 at 12:35 am #9590

[anonymous]

Hey, I actually had the same question a few years ago. 🙂

Here is the thread: https://forum.getpublii.com/topic/filtering-post-navigation-nextpost-and-previouspost-by-tag/