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无限分类的数据库表怎么设计的

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Jun 23, 2016 pm 02:00 PM

无限分类的数据库表怎么设计最好的
我在写多级菜单后台

完全不知道怎么写比较好。。。。。。。。。。

打算用jstree做前端。。

回复讨论(解决方案)

jstree 的基本数据结构是

{ attributes: { id : "node_identificator", some-other-attribute : "attribute_value" }, data: "node_title", // Properties below are only used for NON-leaf nodes state: "closed", // or "open" children: [ /* an array of child nodes objects */ ] }

jstree 的基本数据结构是

{ attributes: { id : "node_identificator", some-other-attribute : "attribute_value" }, data: "node_title", // Properties below are only used for NON-leaf nodes state: "closed", // or "open" children: [ /* an array of child nodes objects */ ] }

attributes里为自定义属性，data为节点显示的文本，state值为closed时，节点前面有表示节点可以被展开的标识。还有其它写法可参考documentation.html里的Datastores段。

jstree 是动态加载子节点的
所以，你的表除了满足基本数据的存储外，至少还需要有一个指示条目归属的字段

其实我想知道数据库表示怎么设计的怎么遍历数据到前端。。前端遍历出来的数据又是如何放入数据库的。。。。。。。。。。。

当前节点ID，父亲节点ID, 当前节点的路劲，节点名称
比如存在：电脑、办公 > 电脑整机 > 超极本,数据库可以存3条数据

1   0   1            电脑、办公 2   1    1,2       电脑整机3,  2     1,2,3    超极本

当前节点ID，父亲节点ID, 当前节点的路劲，节点名称
比如存在：电脑、办公 > 电脑整机 > 超极本,数据库可以存3条数据

1   0   1            电脑、办公 2   1    1,2       电脑整机3,  2     1,2,3    超极本

遍历思路怎么样的怎么确保先从最上面开始遍历

当使用 jstree 展示时，不存在遍历问题
只需提供父节点的 id 即可，而查询得到的只是该父节点的一级子节点

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