iot/labs/NestedSetModelTest/BaseTreeEntity.cs

using System;
using System.Collections.Generic;

namespace NestedSetModelTest
{
    public class EntityBase<TKey>
    {
        public TKey Id { get; set; }
        public string IsDeleted { get; set; }

        public override string ToString()
        {
            return $"{ GetType().FullName}[{Id}]";
        }
    }

    public abstract class BaseEntity : EntityBase<Guid>
    {
        public BaseEntity()
        {
            this.Id = Guid.NewGuid();
        }
    }

    public abstract class BaseTreeEntity<T> : BaseEntity where T : BaseTreeEntity<T>
    {
        public int DisplayOrder { get; set; }
        public int Left { get; set; }
        public int Right { get; set; }
        public Guid? ParentId { get; set; }
        public T Parent { get; set; }
#pragma warning disable CA2227 // 集合属性应为只读
        public List<T> Children { get; set; } = new List<T>();
#pragma warning restore CA2227 // 集合属性应为只读

        public List<T> GetPath()
        {
            var list = new List<T>();
            var item = this as T;
            while (item != null)
            {
                list.Add(item);
                if (item.Parent == null || item.Parent.Id == this.Id)
                {
                    break;
                }
                item = item.Parent;
            }
            list.Reverse();
            return list;
        }
    }

    public class Node : BaseTreeEntity<Node>
    {
        public string Name { get; set; }
        public string Number { get; set; }
    }
}