请教大大，下面代码是不是写的不对，注释的地方标出了问题。

数据库是 sqlite3，框架是 rails 3.2.22，ruby 版本是 2.1.10

感谢！

destruction_item1s.delete_all
kases.each do |kase|
    # DestructionItem1.transaction do
        kase.kase_item1s.each do |kase_item1|
            found = false
            logger.debug(destruction_item1s.count)                # 这一行count是有数字的  <-------------
            byebug
            # 但下面的这个循环并不会被执行，因为destruction_item1s = []，是空的  <-------------
            destruction_item1s.each do |destruction_item1|
                if kase_item1.product_id == destruction_item1.product_id
                    destruction_item1.amount += kase_item1.amount
                    found = true
                end
            end
            if !found
                DestructionItem1.create(
                    destruction_id: id,
                    category_id: kase_item1.category_id,
                    product_id: kase_item1.product_id,
                    name: kase_item1.name,
                    spec: kase_item1.spec,
                    bottles_per_box: kase_item1.bottles_per_box,
                    amount: kase_item1.amount,
                    amount_box: kase_item1.amount_box,
                    price_supply: kase_item1.price_supply,
                    price_market: kase_item1.price_market,
                )
            end
        end
    # end
end