IM/backend/IM_API/Models/Groupmember.cs

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;

namespace IM_API.Models;

public partial class GroupMember
{
    public int Id { get; set; }

    /// <summary>
    /// 用户编号
    /// </summary>
    public int UserId { get; set; }

    /// <summary>
    /// 群聊编号
    /// </summary>
    public int GroupId { get; set; }

    /// <summary>
    /// 成员角色（0:普通成员,1:管理员,2:群主）
    /// </summary>
    public sbyte Role { get; set; }

    /// <summary>
    /// 加入群聊时间
    /// </summary>
    [Column(TypeName = "datetimeoffset")]
    public DateTimeOffset Created { get; set; }

    public virtual Group Group { get; set; } = null!;

    public virtual User User { get; set; } = null!;
}