[wp-trac] [WordPress Trac] #38786: register_meta()'s show_in_rest not mapping to specific fields

[WordPress Trac]

#38786: register_meta()'s show_in_rest not mapping to specific fields
--------------------------+-----------------------------
 Reporter:  garubi        |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  REST API      |    Version:  trunk
 Severity:  normal        |   Keywords:
  Focuses:  rest-api      |
--------------------------+-----------------------------
 I'm following the directions found on the (future) documentation for the
 REST API https://github.com/WP-API/wp-api-meta-endpoints/blob/new-meta-
 new-life/README.md#apispecific-options.

 Reading it, looks like we could register any custom field to be exposed
 via REST API and map it to an API-specific field name.
 i.e the field could be "telephone_number" but exposed to the API as
 "phone".


 {{{
 function register_new_meta() {
     $args = array(
         //'sanitize_callback' => 'sanitize_my_meta_key',
         //'auth_callback' => 'authorize_my_meta_key',
         'type' => 'string',
         'description' => 'test register_field',
         'single' => true,
     'show_in_rest' => array(
         'name' => 'phone'
     )
     register_meta( 'post', 'telephone_number', $args );
 }
 }}}

 I tested it and in the response to my GET I get the 'phone' field empty,
 while if I omit the 'name' => 'phone' argument, setting only show_in_rest
 => true like this:
 {{{
 add_action( 'init', 'register_new_meta');

 function register_new_meta() {
      $args = array(
         'type' => 'string',
         'description' => 'Extra information',
         'single' => true,
         'show_in_rest' => true,
     );
     register_meta( 'post', 'telephone_number', $args );
 }
 }}}
 I get the 'wpcf-informazioni' field populated with its content.

 So is the "mapping" to the "name" not working (maybe the document I
 referenced isn't updated), or am I doing something wrong... ?

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Ticket URL: <https://core.trac.wordpress.org/ticket/38786>
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