分类  cates    ？？？

cates_id cates_name cates_img cates_sort cates_pid



商品类型  type

type_id	type_name



商品属性  attr

attr_id  attr_name  attr_type  attr_values  type_id



商品表   commodity

commodity_id  commodity_name  commodity_num  commodity_og_thumb

commodity_sm_thumb  commodity_big_thumb  commodity_market_price

commodity_shop_price  commodity_on_sale  cates_id  brand_id  type_id

commodity_desc  commodity_weight  commodity_weight_unit



 where(array('attr_type' => $typeid )) ->