WP_Sync_Post_Meta_Storage::get_awareness_state( string $room ): array<int,

Source

public function get_awareness_state( string $room ): array {
	global $wpdb;

	$post_id = $this->get_storage_post_id( $room );
	if ( null === $post_id ) {
		return array();
	}

	// Use direct database operation to avoid updating the post meta cache.
	// ORDER BY meta_id DESC ensures the latest row wins if duplicates exist
	// from a past race condition in set_awareness_state().
	$meta_value = $wpdb->get_var(
		$wpdb->prepare(
			"SELECT meta_value FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = %s ORDER BY meta_id DESC LIMIT 1",
			$post_id,
			self::AWARENESS_META_KEY
		)
	);

	if ( null === $meta_value ) {
		return array();
	}

	$awareness = json_decode( $meta_value, true );

	if ( ! is_array( $awareness ) ) {
		return array();
	}

	return array_values( $awareness );
}

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