[wp-trac] [WordPress Trac] #21949: Allow private taxonomies (public = false)

[WordPress Trac]

#21949: Allow private taxonomies (public = false)
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 Reporter:  wpsmith             |       Owner:  boonebgorges
     Type:  enhancement         |      Status:  reopened
 Priority:  normal              |   Milestone:  4.4
Component:  Taxonomy            |     Version:
 Severity:  normal              |  Resolution:
 Keywords:  has-patch rest-api  |     Focuses:
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Changes (by Chouby):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 I'd like to reopen this ticket as it introduces a backward
 incompatibility.

 In WP 4.3.1, setting `'public' => false`, `'query_var' => 'lang'` allows
 to completely hide the taxonomy on admin side and to query the taxonomy on
 frontend.

 In WP 4.4, I need to set `'public' => true` in order to be able to query
 the taxonomy on frontend but setting `'show_ui' => false` is not
 sufficient to completely hide the taxonomy on admin side. The taxonomy
 appears among the nav menus metaboxes. This is confusing for Polylang
 users (I already got some feedback from a user testing the dev version of
 Polylang with WP 4.4 beta).

 #34491 is one solution to solve this backward compatibility issue.

 Another solution could be to replace `'public' => false` by `'show_ui' =>
 false` everywhere on admin side, but I fear that it could introduce other
 side effects.

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Ticket URL: <https://core.trac.wordpress.org/ticket/21949#comment:37>
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