public function update($cat_id)
{
$cat_id = (int) $cat_id;
$model = new \Model\CategoryModel();
if (IS_POST) {
if ($data = $model->create(I('post.'), 2)) {
//查找自身和下级的cat_id，防止修改表单恶意提交（将自身或者下级作为自身的父级）
$ids = $model->getChild($cat_id);
$ids[] = $cat_id;
$parent_id = (int) I('post.parent_id');
if (in_array($parent_id, $ids)) {
$this->error('不能讲自身和下级栏目作为自身的父级');
}
if ($model->save($data) !== false) {
$this->success('修改成功', U('showlist'), 1);
exit;
} else {
$this->error('修改失败');
}
} else {
$this->error($model->getError());
}
}
//取出要修改栏目的信息
$info = $model->find($cat_id);
$this->assign('info', $info);
//取出要修改的栏目的自身和下级栏目，在修改界面不显示
$ids = $model->getChild($cat_id);
$ids[] = $cat_id;
$this->assign('ids', $ids);
//取出商品栏目
$cat_list = $model->getTree();
$this->assign('cat_list', $cat_list);
$this->display();
}
public function Category()
{
$cat_model = new \Model\CategoryModel();
$goods_model = new \Model\GoodsModel();
//精品推荐
$this->goods_best_list = $goods_model->getGoodsByType('best', 3);
//判断栏目是否是顶级栏目,是就查出该栏目下所有子栏目的商品
$cat_id = $_GET['cat_id'] + 0;
$ids = $cat_model->getChild($cat_id);
if (empty($ids)) {
//代表自身是子栏目,将自身加入到数组中
$ids[] = $cat_id;
}
$ids = implode(',', $ids);
//总记录数
$count = $goods_model->where("cat_id in ({$ids})")->count();
$pagesize = 2;
//总页数
$pagecount = ceil($count / $pagesize);
//获取页码
$pageno = isset($_GET['pageno']) ? $_GET['pageno'] : 1;
if ($pageno < 1) {
$pageno = 1;
}
if ($pageno > $pagecount) {
$pageno = $pagecount;
}
$goods_cat_list = $goods_model->field('goods_id,goods_name,shop_price,goods_thumb')->where("cat_id in ({$ids})")->page($pageno, $pagesize)->select();
if (isset($_GET['pageno'])) {
$this->ajaxReturn($goods_cat_list);
exit;
} else {
$this->assign('goods_cat_list', $goods_cat_list);
$this->assign('pagecount', $pagecount);
$this->assign('pageno', $pageno);
$this->assign('cat_id', $cat_id);
$this->display();
}
}