using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.ComponentModel.DataAnnotations;

using System.ComponentModel.DataAnnotations.Schema;
namespace _2021_backend.Models
{
    public class Comment
    {
        public Comment()
        {
            Guid = Guid.NewGuid();  
            AddTime = DateTime.Now; 
        }

        [Key]
        public Guid Guid { get; set; }
        [Required()]
        [Display(Name ="评论者")]
        public Guid Operator { get; set; }

        [Required()]
        [Display(Name ="内容")]
        public string Content { get; set; }
        [Display(Name = "评论时间")]
        [DataType(DataType.DateTime)]
        public DateTime AddTime { get; set; }
        [Display(Name ="被评论者")]
        public Guid Student { get; set; }
        public Comment(Guid opid,string content, Guid stuguid)
        {
            Guid = Guid.NewGuid();
            Operator = opid;
            Content = content;
            Student = stuguid;
            AddTime = DateTime.Now;
        }

    }
}