[wp-trac] [WordPress Trac] #64156: add_post_type_support() does not merge sub-properties for the same feature

[WordPress Trac]

#64156: add_post_type_support() does not merge sub-properties for the same feature
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 Reporter:  fabiankaegy               |       Owner:  (none)
     Type:  defect (bug)              |      Status:  new
 Priority:  normal                    |   Milestone:  6.9
Component:  General                   |     Version:
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Comment (by tusharaddweb):

 the issue is still there so better to patch in core as under wp-
 includes/post.php

 replace the add_post_type_support function code with below code so it will
 remove the problems
 {{{
 function add_post_type_support( $post_type, $feature, $args = true ) {
     global $_wp_post_type_features;



     if ( ! isset( $_wp_post_type_features[ $post_type ] ) ) {
         $_wp_post_type_features[ $post_type ] = [];
     }

     if ( is_array( $feature ) ) {
         foreach ( $feature as $f ) {
             add_post_type_support( $post_type, $f, $args );
         }
         return;
     }

     if ( isset( $_wp_post_type_features[ $post_type ][ $feature ] )
         && is_array( $_wp_post_type_features[ $post_type ][ $feature ] )
         && is_array( $args )
     ) {
         $_wp_post_type_features[ $post_type ][ $feature ] = array_merge(
             $_wp_post_type_features[ $post_type ][ $feature ],
             $args
         );
     } else {
         $_wp_post_type_features[ $post_type ][ $feature ] = $args;
     }
 }
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/64156#comment:9>
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