tp商城(6)

---------------------------TP——-——-——商 城-----------------------------------

$cat = D('Cat');

$cats = $cat->getTree();

$this->assign('cats' , $cats);

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数据库的里边 大栏目是 parent_id = 0 的

小栏目是 parent_id= 大栏目的cat_id 的

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<div class="subnav">

<foreach name="cats" item="c">

<if condition="$c['parent_id']==0">

<div>

<span class="left">

{$c['cat_name']}

</span>

<span class="right subnav_right">

<img src="__PUBLIC__/Home/images/line.gif" border="0" id="categorie_ico1">

</span>

</div>

<ul>

<foreach name="cats" item="s">

<if condition="$s['parent_id']==$c['cat_id']">

<li>

 

<a href="{:U('Home/Index/cat' ,array('cat_id'=>$s['cat_id']))}">

//加的链接点进去就是 调用栏目方法

//依据cat_id 去显示该栏目下所有属于这个cat_id栏目下 商品

//----------------------cat_id = I('get.cat_id')；

{$s['cat_name']}

</a>

</li>

</if>

</foreach>

</ul>

</if>

</foreach>

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查询 首页的精品 热销 新品 。。。

数据库字段 is_XX =1

$goods = D('Goods');

$goods->where('is_best=1')->order('goods_id desc')->limit(0,3);

$this->assign('best' , $goods->select());

$goods->where('is_hot=1')->order('goods_id desc')->limit(0,3);

$this->assign('hot' , $goods->select());

$goods->where('is_new=1')->order('goods_id desc')->limit(0,3);

$this->assign('new' , $goods->select());

---==---

<foreach name="new" item="g">

<li>

<a href="{:U('Home/Index/goods' , array('goods_id'=>$g['goods_id']))}">

//链接告诉去找 index下的goods 方法处理显示 单个的商品信息页

<img src="{$g.thumb_img}" alt="{$g.goods_name}" />

</a>

<p class="pname">

<a href="{:U('Home/Index/goods' , array('goods_id'=>$g['goods_id']))}" title="{$g.goods_name}">

//链接告诉去找 index下的goods 方法处理显示 单个的商品信息页

{$g.goods_name}{$g.goods_brief}

</a>

</p>

<p class="price">

￥{$g.shop_price}元

</p>

</li>

</foreach>

然后再模板中输出ok！

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public function cat(){

/* $cat = D('Cat');

$cats = $cat->getTree();

$this->assign('cats' , $cats);

前面是侧边栏 和首页一样

*/

$goods = D('Goods');

$cnt = $goods->where('cat_id='.I('get.cat_id'))->count('*');

$pager = new \Org\Itbool\MyPage($cnt, 9);

$this->assign('pages' , $pager->show());

//此处分页类 连起来写了。$pager->show() 计算出分页代码；

//取哪个栏目下的商品 根据地址栏的栏目id判断

$goods->where('cat_id='.I('get.cat_id'));

$goods->order('goods_id desc')->limit($pager->firstRow,$pager->listRows);

$this->assign('goods' , $goods->select());

$this->display('category');

}

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面包屑导航

public function getMbx($cat_id) {

$row = $this->find($cat_id); # 假设查3号栏,parent_id=>2

$tree[] = $row;

while($row['parent_id'] > 0) { # row['parent_id']=2 , >0

$row = $this->find($row['parent_id']); #查2号栏

$tree[] = $row;

}

return array_reverse($tree);

}

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_______________________________________________________________________________

public funtion getMbx($cat_id){

$this->row = $this->find(cat_id);

$tree[] = $row;

while( $row['parent_id'] ){

$row =$this-> find($this->$row['parent_id']);

$tree = $row;

}

return array_reverse($tree);

}

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