package db

import "axolotl/models"

func (db *DB) GetRelNames(n *models.Node, r models.RelType) ([]string, error) {
	ids := n.Relations[string(r)]
	if len(ids) == 0 {
		return nil, nil
	}
	result := make([]string, 0, len(ids))
	for _, id := range ids {
		var title string
		if err := db.QueryRow("SELECT title FROM nodes WHERE id = ?", id).Scan(&title); err != nil {
			return nil, err
		}
		result = append(result, title)
	}
	return result, nil
}