backend/internal/model/client.go

package model

import "time"

// Client 客户端实体，用于管理Token版本
type Client struct {
	UUID        string    `gorm:"column:uuid;type:varchar(36);primaryKey" json:"uuid"`           // Client UUID
	ClientToken string    `gorm:"column:client_token;type:varchar(64);not null;uniqueIndex" json:"client_token"` // 客户端Token
	UserID      int64     `gorm:"column:user_id;not null;index:idx_clients_user_id" json:"user_id"`              // 用户ID
	ProfileID   string    `gorm:"column:profile_id;type:varchar(36);index:idx_clients_profile_id" json:"profile_id,omitempty"` // 选中的Profile
	Version     int       `gorm:"column:version;not null;default:0;index:idx_clients_version" json:"version"`     // 版本号
	CreatedAt   time.Time `gorm:"column:created_at;type:timestamp;not null;default:CURRENT_TIMESTAMP" json:"created_at"`
	UpdatedAt   time.Time `gorm:"column:updated_at;type:timestamp;not null;default:CURRENT_TIMESTAMP" json:"updated_at"`

	// 关联
	User    *User    `gorm:"foreignKey:UserID;constraint:OnDelete:CASCADE" json:"user,omitempty"`
	Profile *Profile `gorm:"foreignKey:ProfileID;references:UUID;constraint:OnDelete:CASCADE" json:"profile,omitempty"`
}

// TableName 指定表名
func (Client) TableName() string {
	return "clients"
}