[wp-trac] [WordPress Trac] #42332: delete_site permission is not working as it should

[WordPress Trac]

#42332: delete_site permission is not working as it should
-------------------------------+------------------------------
 Reporter:  Shebo              |       Owner:
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Role/Capability    |     Version:  4.2
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:  multisite
-------------------------------+------------------------------
Changes (by johnbillion):

 * keywords:   => reporter-feedback
 * version:  trunk => 4.2


Comment:

 Thanks for the report, @Shebo.

 The `delete_site` capability is a ''meta'' capability, which means the
 capability is only granted to a user or a role at runtime according to
 logic (in this case, mapping it to the `manage_options` primitive
 capability). Granting a meta capability directly to a user or a role won't
 work.

 In order to actually grant a user the `delete_site` capability, you'll
 also need to implement a filter such as the following ''in addition'' to
 granting them the `delete_site` capability via their user or their role:

 {{{#!php
 add_filter( 'map_meta_cap', function( array $required_caps, $cap,
 $user_id, array $args ) {
         if ( 'delete_site' === $cap ) {
                 $required_caps = array(
                         'delete_site',
                 );
         }
         return $required_caps;
 }, 10, 4 );
 }}}

 Can you let us know if this works as expected?

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Ticket URL: <https://core.trac.wordpress.org/ticket/42332#comment:1>
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