used as a filter callback. As a rule, there
* is no need to invoke it directly.
*
* @since 4.5.0
* @deprecated 6.3.0 Use WP_Metadata_Lazyloader::lazyload_meta_callback() instead.
*
* @param mixed $check The `$check` param passed from the 'get_term_metadata' hook.
* @return mixed In order not to short-circuit `get_metadata()`. Generally, this is `null`, but it could be
* another value if filtered by a plugin.
*/
public function lazyload_term_meta( $check ) {
_deprecated_function( __METHOD__, '6.3.0', 'WP_Metadata_Lazyloader::lazyload_meta_callback' );
return $this->lazyload_meta_callback( $check, 0, '', false, 'term' );
}
/**
* Lazy-loads comment meta for queued comments.
*
* This method is public so that it can be used as a filter callback. As a rule, there is no need to invoke it
* directly, from either inside or outside the `WP_Query` object.
*
* @since 4.5.0
* @deprecated 6.3.0 Use WP_Metadata_Lazyloader::lazyload_meta_callback() instead.
*
* @param mixed $check The `$check` param passed from the {@see 'get_comment_metadata'} hook.
* @return mixed The original value of `$check`, so as not to short-circuit `get_comment_metadata()`.
*/
public function lazyload_comment_meta( $check ) {
_deprecated_function( __METHOD__, '6.3.0', 'WP_Metadata_Lazyloader::lazyload_meta_callback' );
return $this->lazyload_meta_callback( $check, 0, '', false, 'comment' );
}
/**
* Lazy-loads meta for queued objects.
*
* This method is public so that it can be used as a filter callback. As a rule, there
* is no need to invoke it directly.
*
* @since 6.3.0
*
* @param mixed $check The `$check` param passed from the 'get_*_metadata' hook.
* @param int $object_id ID of the object metadata is for.
* @param string $meta_key Unused.
* @param bool $single Unused.
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
* or any other object type with an associated meta table.
* @return mixed In order not to short-circuit `get_metadata()`. Generally, this is `null`, but it could be
* another value if filtered by a plugin.
*/
public function lazyload_meta_callback( $check, $object_id, $meta_key, $single, $meta_type ) {
if ( empty( $this->pending_objects[ $meta_type ] ) ) {
return $check;
}
$object_ids = array_keys( $this->pending_objects[ $meta_type ] );
if ( $object_id && ! in_array( $object_id, $object_ids, true ) ) {
$object_ids[] = $object_id;
}
update_meta_cache( $meta_type, $object_ids );
// No need to run again for this set of objects.
$this->reset_queue( $meta_type );
return $check;
}
}
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