用thinkphp做一个商城
需要有多规格、多价格、多颜色参数，像淘宝购物详情里面的那样
这个数据库字段、和程序如何设计？
然后如何进行读取，请大神给指导哈
回复内容：
用thinkphp做一个商城
需要有多规格、多价格、多颜色参数，像淘宝购物详情里面的那样
这个数据库字段、和程序如何设计？
然后如何进行读取，请大神给指导哈
可以把表设计如下:
商品表
| 商品 id | 商品名称 |
|---|---|
| 1 | iPhone |
| 2 | 黄瓜 |
商品属性表
| 商品 id | 规格 | 颜色 | 价格 |
|---|---|---|---|
| 1 | 16g | 白色 | 4999 |
| 1 | 32g | 白色 | 5499 |
| 2 | 无 | 无 | 1 |
对于你现在自己练手项目,最适用就是这种设计了.
不过此种设计针对商品的属性一定或少的情况下适用,如果属性较多,那么就要增加属性字段,而且有的商品未必用到了这个属性,造成浪费,导致属性表不变扩大.例如商品2黄瓜.
可以变成如下设计:
属性表
| 属性 id | 属性名称 |
|---|---|
| 1 | 规格 |
| 2 | 颜色 |
| 3 | 价格 |
商品种类表
| 种类 id | 商品 id |
|---|---|
| a | 1 |
| b | 1 |
| c | 2 |
商品属性表
| 商品种类 id | 属性 id | 属性值 |
|---|---|---|
| a | 1 | 16g |
| a | 2 | 白色 |
| a | 3 | 4999 |
| b | 1 | 32g |
| b | 2 | 白色 |
| b | 3 | 4999 |
| c | 4 | 上海 |
设计如上,商品黄瓜的属性只会产生一条数据.
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