关于购物站，客户操作到哪一步时才改变产品总数数量？该怎么解决 -PHP Tutorial-php.cn

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关于购物站，客户操作到哪一步时才改变产品总数数量？该怎么解决

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Jun 13, 2016 pm 01:35 PM

关于购物站，客户操作到哪一步时才改变产品总数数量？
我第一次做购物站。遇到一个逻辑问题。请高手们帮忙分析一下如何解决。

购物站中。如果产品只剩下一件。是用户加入购物车之后产品视为已经售完呢？还是订单生成后视为售完，又还是支付交易成功后视为售完。

如果是加入购物车之后视为售完。那么如果该用户就玩玩。放入购物车后不支付。那岂不是影响其他用户购物了。

如果是订单支付后视为售完。那么假如产品只剩下一件。在A用户订购但是还没支付的情况下。B用户又订购了。那岂不是不够？

这个大家究竟怎么解决的？

------解决方案--------------------
应该在“生成订单”的时候为库存数减一（若已经到 0 则不能生成订单）。太早的话（在放入购物车时）卖家吃亏，太晚的话（在支付的时候）卖家被动。

同时应该考虑增加一个提醒功能，在购物车中的数量超过库存数的时候，提醒卖家关注，及时补货或者主动跟买家联系。

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