[wp-trac] [WordPress Trac] #56593: Post meta validation error messages are not helpful to end users

[WordPress Trac]

#56593: Post meta validation error messages are not helpful to end users
-----------------------------+-----------------------------
 Reporter:  andrewleap       |      Owner:  (none)
     Type:  feature request  |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  REST API         |    Version:  6.0.2
 Severity:  normal           |   Keywords:  2nd-opinion
  Focuses:  rest-api         |
-----------------------------+-----------------------------
 The meta error messages generated by the validate callback are not helpful
 to the end user.

 For example, if we register a meta field with the following:
 {{{
 register_post_meta(
         $post_type,
         'author_url',
         array(
                         'type'             => 'string',
                         'show_in_rest'     => array(
                              'single'           => true,
                              'schema'           => array(
                              'type'             => 'string',
                              'pattern'          => 'https:\/\/.+',
                         ),
                 )
         )
 );
 }}}

 An incorrectly formatted field would yield the following error message in
 the Gutenberg editor:


 {{{
 Updating failed. meta.author_url does not match pattern https:\/\/.+.
 }}}

 As far as I can tell, the only way I can see currently to filter the
 message is to crudely hook into `rest_post_dispatch` and string replace
 the error message.

 I may be wrong. Perhaps there is some way to conveniently do this on the
 client side with the notice date store selectors / actions, but since the
 meta fields are registered server side, it seems like it would be more
 convenient to filter the output of `rest_validate_value_from_schema` to
 customize the error messages

 I'd like to request a `rest_validate_value_from_schema` filter.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/56593>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform