DW5S/DW5S.Entity/BaseEntity.cs

using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.Xml.Linq;

namespace DW5S.Entity
{
    /// <summary>
    /// int主键的Entity基类
    /// </summary>
    [Index(nameof(UpdateTime))]
    public abstract class BaseEntity
    {
        /// <summary>
        /// 
        /// </summary>
        public BaseEntity()
        {
            this.CreateTime = DateTime.Now;
            this.UpdateTime = DateTime.Now;
        }

        /// <summary>
        /// 编号
        /// </summary>
        [Key]
        public int Id { get; set; }

        /// <summary>
        /// 创建时间
        /// </summary>
        public DateTime CreateTime { get; set; }

        /// <summary>
        /// 更新时间
        /// </summary>
        public DateTime UpdateTime { get; set; }
    }

    /// <summary>
    /// long类型主键的Entity基类
    /// </summary>
    public abstract class BaseEntityLong : BaseEntity
    {
        /// <summary>
        /// 
        /// </summary>
        public BaseEntityLong()
        {
            this.CreateTime = DateTime.Now;
            this.UpdateTime = DateTime.Now;
        }

        /// <summary>
        /// 编号
        /// </summary>
        [Key]
        public new long Id { get; set; }
    }
}