Method TableUnique

models/book_category.go:17–21

多字段唯一键

()

// 多字段唯一键
func (this *BookCategory) TableUnique() [][]string {
	return [][]string{
		[]string{"BookId", "CategoryId"},
	}
}

//根据书籍id查询分类id
func (this *BookCategory) GetByBookId(book_id int) (cates []Category, rows int64, err error) {