register_taxonomy should accept has_archive

[mattbeck]

Taxonomies can and should be used by custom themes/plugins to connect posts/pages together.

It's not always desirable to expose this relationship publicly with an archive view, and if overlooked can cause undesired results or content duplication issues in search engine indexes.

Following the same process as registering a custom post type, the register_taxonomy function should accept the has_archive bool.

[nofearinc]

What would be the difference with the has_archive argument for register_post_type calls?

[mattbeck]

Taxonomies are not always tied to a specific post type, and they have their own archive pages.

Those archive pages should be disable-able.

Currently if you don't want to expose the taxonomy's archive page, you have to set up a 301 or some such.

[husobj]

Related to #13816 ?

[nacin]

The very concept of has_archive (as it applies to post types) doesn't exist for taxonomies. See #13816. If you want to suppress /tag/foo/ pages, you'll want to evaluate the rewrite and public args.

[mattbeck]

Replying to nacin:

The very concept of has_archive (as it applies to post types) doesn't exist for taxonomies. See #13816. If you want to suppress /tag/foo/ pages, you'll want to evaluate the rewrite and public args.

Gotcha, that wasn't clear.

Updated the codex to reflect this method.
​http://codex.wordpress.org/Function_Reference/register_taxonomy#Example_Private_Taxonomy