[wp-trac] [WordPress Trac] #43941: Add default value to register meta

[WordPress Trac]

#43941: Add default value to register meta
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 Reporter:  spacedmonkey              |       Owner:  spacedmonkey
     Type:  enhancement               |      Status:  assigned
 Priority:  normal                    |   Milestone:  Future Release
Component:  Options, Meta APIs        |     Version:  4.6
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:  rest-api
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Comment (by TimothyBlynJacobs):

 Uploaded a patch to support a `null` default type as discussed in last
 week's office hours. I don't think supporting `null` is a blocker, but
 it'd be a bit difficult to patch in later due to the args filter in
 `register_meta` and `null` would be the best default for a `date-time`
 meta type that is optional.

 {{{#!php
 <?php
 register_meta( 'post', 'my_date', array(
     'type' => 'string',
     'show_in_rest' => array(
         'type' => array( 'string', 'null' ),
         'format' => 'date-time',
     ),
 ) );
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/43941#comment:27>
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