[wp-trac] [WordPress Trac] #37885: Build out register_setting like register_meta

[WordPress Trac]

#37885: Build out register_setting like register_meta
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 Reporter:  joehoyle            |      Owner:
     Type:  enhancement         |     Status:  new
 Priority:  normal              |  Milestone:  4.7
Component:  Options, Meta APIs  |    Version:  trunk
 Severity:  normal              |   Keywords:  has-patch dev-feedback
  Focuses:                      |
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 In 4.6 the diligent work was done to beef out `register_meta()` to be much
 more extensible. For use in the REST API, I'd like have a similar API for
 registered settings.

 Register settings and meta is quite similar (settings are after all just
 meta on the site object ;) ) so I think we can take a lot of design queues
 from `register_meta` and bring them into `register_setting`. However, as
 settings are not shared across any "object type", the way they are stored
 in a global can probably be a bit simpler.

 Much like `register_meta` I propose we change the function signature to
 `register_setting( $option_group, $option_name, $args = array() )`.

 I've attached an initial patch of the kind of thing I'm thinking.

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Ticket URL: <https://core.trac.wordpress.org/ticket/37885>
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