Hugo: Taxonomy as Permalink Configuration Value

[dmgawel]

I'd like to propose a new permalink configuration value to join :year, :day et al. family: :taxonomy.

Expected behavior:

Given :taxonomy[taxonomy_name] is used in permalink config it is then converted to first term (slug) assigned to particular page.

Example: Let's assume we have following taxonomies:

taxonomies:
  series: "series"

and Page content/movies/the-mask.md with content:

title: "The Mask"
series: ["Comedy"]
---

and following permalink configuration:

[permalinks]
  movies = "/:section/:taxonomy[series]/:slug/"

Our movie page will be then available under /movies/comedy/the-mask/.

It might be also usable if one can enable generating aliases based on other terms assigned to page, but it's not necessary.

The same can be achieved via nested Sections, but it's less flexible from content authors perspective (taxonomies can be easily managed via CMS).

What do you think?

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[vassudanagunta]

I really like this. To me :taxonomy would be more useful than :year and :day in permalinks.

@bep, @moorereason, @digitalcraftsman thoughts?

[cristovaov]

Sorry for bumping this issue, but I would find this very useful too.

I really like this. To me :taxonomy would be more useful than :year and :day in permalinks.

Thank you for looking into this!

[coreyk]

This would indeed be very useful. Bump.

[dmgawel]

I've been thinking about this functionality for some time, maybe I'll be able to propose some PR. My only doubt at the moment is the situation when page does not have a desired taxonomy assigned to it. All the current permalink configuration values are always present (or have fallback).

Back to my example from original idea:

title: "The Mask"
---

[permalinks]
  movies = "/:section/:taxonomy[series]/:slug/"

What should Hugo do in such a situation?

I see two possible solutions:

1. Throw an error.
2. Skip the :taxonomy and output /movies/the-mask/.

WDYT?

[Nihhaar]

Any update on this?