model

type FirstCategory struct {
	gorm.Model
	FirstCategoryIndex       int64  `gorm:"column:first_category_index"`
	FirstCategoryName        string `gorm:"column:first_category_name"`
	FirstCategoryUid         string `gorm:"column:first_category_uid"`
	FirstCategoryDescription string `gorm:"column:first_category_description;type:varchar(1024)"`
	FirstCategoryIconPath    string `gorm:"column:first_category_icon_path"`
}

type SecondCategory struct {
	gorm.Model
	SecondCategoryIndex       int64  `gorm:"column:second_category_index"`
	FirstCategoryUid          string `gorm:"column:first_category_uid;association_foreignkey:first_category_uid"`
	SecondCategoryName        string `gorm:"column:second_category_name"`
	SecondCategoryAuthor      string `gorm:"column:second_category_author"`
	SecondCategoryDescription string `gorm:"column:second_category_description"`
}

type ThirdCategory struct {
	gorm.Model
	ThirdCategoryIndex       int64  `gorm:"column:third_category_index"`
	SecondCategoryIndex      int64  `gorm:"column:second_category_index"`
	FirstCategoryUid         string `gorm:"column:first_category_uid"`
	ThirdCategoryName        string `gorm:"column:third_category_name"`
	ThirdCategoryPath        string `gorm:"column:third_category_path"`
	ThirdCategoryAuthor      string `gorm:"column:third_category_author"`
	ThirdCategoryDescription string `gorm:"column:third_category_description"`
}

type VtbDB gorm.DB