/***********************************************************************
 *            Project: CoreCms
 *        ProjectName: 核心内容管理系统                                
 *                Web: https://www.corecms.net                      
 *             Author: 大灰灰                                          
 *              Email: jianweie@163.com                                
 *         CreateTime: 2025/12/7
 *        Description: 站内信消息表
 ***********************************************************************/

using SqlSugar;
using System.ComponentModel.DataAnnotations;

namespace CoreCms.Net.Model.Entities
{
    /// <summary>
    /// 站内信消息表
    /// </summary>
    [SugarTable("SQMessage", TableDescription = "站内信消息表")]
    public partial class SQMessage
    {
        /// <summary>
        /// 构造函数
        /// </summary>
        public SQMessage()
        {
        }

        /// <summary>
        /// 消息ID
        /// </summary>
        [Display(Name = "消息ID")]
        [SugarColumn(ColumnDescription = "消息ID", IsPrimaryKey = true, IsIdentity = true)]
        [Required(ErrorMessage = "请输入{0}")]
        public System.Int32 id { get; set; }

        /// <summary>
        /// 接收用户ID，全员广播时为NULL
        /// </summary>
        [Display(Name = "接收用户ID")]
        [SugarColumn(ColumnDescription = "接收用户ID，全员广播时为NULL", IsNullable = true)]
        public System.Int32? user_id { get; set; }

        /// <summary>
        /// 目标类型：0=指定用户，1=全员广播
        /// </summary>
        [Display(Name = "目标类型")]
        [SugarColumn(ColumnDescription = "目标类型：0=指定用户，1=全员广播")]
        [Required(ErrorMessage = "请输入{0}")]
        public System.Int32 target_type { get; set; }

        /// <summary>
        /// 消息标题
        /// </summary>
        [Display(Name = "消息标题")]
        [SugarColumn(ColumnDescription = "消息标题")]
        [Required(ErrorMessage = "请输入{0}")]
        [StringLength(200, ErrorMessage = "【{0}】不能超过{1}字符长度")]
        public System.String title { get; set; }

        /// <summary>
        /// 消息正文
        /// </summary>
        [Display(Name = "消息正文")]
        [SugarColumn(ColumnDescription = "消息正文", ColumnDataType = "nvarchar(max)")]
        [Required(ErrorMessage = "请输入{0}")]
        public System.String content { get; set; }

        /// <summary>
        /// 消息类型：0=系统通知，1=私信
        /// </summary>
        [Display(Name = "消息类型")]
        [SugarColumn(ColumnDescription = "消息类型：0=系统通知，1=私信")]
        [Required(ErrorMessage = "请输入{0}")]
        public System.Int32 message_type { get; set; }

        /// <summary>
        /// 是否已读（仅对指定用户消息有效）
        /// </summary>
        [Display(Name = "是否已读")]
        [SugarColumn(ColumnDescription = "是否已读")]
        [Required(ErrorMessage = "请输入{0}")]
        public System.Boolean is_read { get; set; }

        /// <summary>
        /// 发送者ID（后台管理员ID）
        /// </summary>
        [Display(Name = "发送者ID")]
        [SugarColumn(ColumnDescription = "发送者ID", IsNullable = true)]
        public System.Int32? sender_id { get; set; }

        /// <summary>
        /// 关联业务类型：1=组局
        /// </summary>
        [Display(Name = "关联业务类型")]
        [SugarColumn(ColumnDescription = "关联业务类型", IsNullable = true)]
        public System.Int32? related_type { get; set; }

        /// <summary>
        /// 关联业务ID
        /// </summary>
        [Display(Name = "关联业务ID")]
        [SugarColumn(ColumnDescription = "关联业务ID", IsNullable = true)]
        public System.Int32? related_id { get; set; }

        /// <summary>
        /// 创建时间
        /// </summary>
        [Display(Name = "创建时间")]
        [SugarColumn(ColumnDescription = "创建时间")]
        [Required(ErrorMessage = "请输入{0}")]
        public System.DateTime created_at { get; set; }

        /// <summary>
        /// 更新时间
        /// </summary>
        [Display(Name = "更新时间")]
        [SugarColumn(ColumnDescription = "更新时间", IsNullable = true)]
        public System.DateTime? updated_at { get; set; }
    }
}