package dao import ( "time" ) type BaseModel struct { ID int64 `gorm:"bigint;primaryKey;autoIncrement;column:id;comment:主键ID" json:"id"` CreatedAt time.Time `gorm:"column:created_at;comment:创建时间;not null;default:current_timestamp" json:"created_at"` UpdatedAt time.Time `gorm:"column:updated_at;comment:更新时间;not null;default:current_timestamp on update current_timestamp" json:"updated_at"` }