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

using Raven.Client.Documents.Indexes;

namespace zero.Pages;

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

    public List<PathResult> Path { get; set; } = new List<PathResult>();

    public string[] PathIds { get; set; } = Array.Empty<string>();
  }


  public class PathResult
  {
    public string Id { get; set; }

    public string Name { get; set; }
  }


  protected override void Create()
  {
    Map = items => items
      .Select(item => new
      {
        Item = item,
        Path = Recurse(item, x => LoadDocument<Page>(x.ParentId)).Where(x => x != null && x.Id != null && x.Id != item.Id).Reverse()
      })
      .Select(item => new Result
      {
        Id = item.Item.Id,
        Name = item.Item.Name,
        Path = item.Path.Select(current => new PathResult() { Id = current.Id, Name = current.Name }).ToList(),
        PathIds = item.Path.Select(current => current.Id).ToArray()
      });

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