Ticket #35658: 35658.26.diff

src/wp-includes/meta.php

@@ -1017 +1017 @@
 
         /* translators: object type name */
         if ( ! in_array( $object_type, array( 'post', 'comment', 'user', 'term' ) ) ) {
-                _doing_it_wrong( __FUNCTION__, sprintf( __( 'Invalid object type: %s.' ), $object_type ), '4.6.0' );
+                return new WP_Error( 'register_meta_failed', __( 'Meta can only be registered against a core object type.' ) );
         }
 
         $defaults = array(
@@ -1063 +1063 @@
 
         // Object subtype is required if using the args style of registration
         if ( ! $has_old_sanitize_cb && empty( $args['object_subtype'] ) ) {
-                return false;
+                return new WP_Error( 'register_meta_failed', __( 'Meta must be registered against an object subtype.' ) );
         }
 
         // If `auth_callback` is not provided, fall back to `is_protected_meta()`.
@@ -1097 +1097 @@
                 return true;
         }
 
-        return false;
+        return new WP_Error( 'register_meta_failed', __( 'Sanitize and auth callbacks applied; meta not registered.' ) );
 }
 
 /**
@@ -1120 +1120 @@
 
         // Only specific core object types are supported.
         if ( ! in_array( $object_type, array( 'post', 'comment', 'user', 'term' ) ) ) {
-                return false;
+                return new WP_Error( 'invalid_meta_key', __( 'Invalid meta key. Not a core object type.' ) );
         }
 
         if ( ! isset( $wp_meta_keys[ $object_type ] ) ) {