[wp-trac] [WordPress Trac] #45220: register_rest_field() doesn't work when schema is empty

[WordPress Trac]

#45220: register_rest_field() doesn't work when schema is empty
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 Reporter:  Dudo                             |       Owner:  (none)
     Type:  defect (bug)                     |      Status:  new
 Priority:  normal                           |   Milestone:  5.0
Component:  REST API                         |     Version:  5.0
 Severity:  normal                           |  Resolution:
 Keywords:  has-patch has-unit-tests commit  |     Focuses:  rest-api
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Comment (by danielbachhuber):

 In [attachment:"45220.2.diff"], any fields registered with
 `register_rest_field()` that have a null schema are included in
 `WP_REST_Controller::get_fields_for_response()`. I think this is a more
 appropriate fix because:

 1. It ensures `get_fields_for_response()` has the expected return values.
 2. It includes `my_custom_int` in the response when the request is
 `?_fields=title,my_custom_int`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/45220#comment:15>
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