mixtape/zero.Core/Pages/Indexes/zero_Pages_WithChildren.cs

using Raven.Client.Documents.Indexes;

namespace zero.Pages;

public class zero_Pages_WithChildren : ZeroIndex<Page, zero_Pages_WithChildren.Result>
{
  public class Result : ZeroIdEntity, ISupportsDbConventions
  {
    public string ParentId { get; set; }

    public string Name { get; set; }

    public string[] ChildrenIds { get; set; }
  }


  protected override void Create()
  {
    Map = items => items.Where(x => x.ParentId != null).Select(item => new Result
    {
      Id = item.Id,
      ParentId = item.ParentId,
      Name = item.Name,
      ChildrenIds = new string[] { }
    });

    Reduce = results => results.GroupBy(x => new { x.ParentId }).Select(group => new Result()
    {
      Id = group.Key.ParentId,
      ParentId = group.Key.ParentId,
      Name = String.Empty,
      ChildrenIds = group.Select(x => x.Id).ToArray()
    });

    StoreAllFields(FieldStorage.Yes);
    //Index(x => x.ChannelId, FieldIndexing.Exact);
  }
}