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EchoChat/backend/go-service/app/im/model/conversation_member.go

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package model
import "time"
// ConversationMember 会话成员模型,对应 im_conversation_members 表
// 每个会话的每个成员一条记录,存储置顶/未读/软删除等个人视图
type ConversationMember struct {
ID int64 `json:"id" gorm:"primaryKey;autoIncrement"` // 记录唯一标识
ConversationID int64 `json:"conversation_id" gorm:"not null;uniqueIndex:idx_conv_user"` // 所属会话 ID
UserID int64 `json:"user_id" gorm:"not null;uniqueIndex:idx_conv_user"` // 成员用户 ID
IsPinned bool `json:"is_pinned" gorm:"default:false"` // 是否置顶该会话
IsDeleted bool `json:"is_deleted" gorm:"default:false"` // 是否删除该会话(软删除,不影响对方)
UnreadCount int `json:"unread_count" gorm:"default:0"` // 该成员在此会话中的未读消息数
LastReadMsgID int64 `json:"last_read_msg_id" gorm:"default:0"` // 该成员最后已读消息 ID
ClearBeforeMsgID int64 `json:"clear_before_msg_id" gorm:"default:0"` // 清空记录时的消息截止 ID个人视图不影响对方
CreatedAt time.Time `json:"created_at" gorm:"not null;autoCreateTime;type:timestamp(0)"` // 加入会话时间
UpdatedAt time.Time `json:"updated_at" gorm:"not null;autoUpdateTime;type:timestamp(0)"` // 最后更新时间
}
// TableName 指定数据库表名
func (ConversationMember) TableName() string {
return "im_conversation_members"
}