YII 框架 第九天（4）數(shù)據(jù)緩存

說是很重要的,經(jīng)常使用數(shù)據(jù)緩存,而不是其他的片段和頁面緩存,額好像我不太喜歡這種緩存額

????????????function?getGoodsInfo($id)
????????????{
????????????????$info?=?Yii::app()->cache->get('goods_info'.$id);//為什么要加id呢,因?yàn)橐啥鄠€(gè)緩存頁面?goods/detail&id=1?goods/detail&id=2?
?????????????????????????????????????????????????????????????????//如果沒有加id,那么?goods/detail&id=3?會(huì)和id=1一樣,是同一個(gè)緩存頁面
????????????????if(!empty($info))
????????????????{
????????????????????return?$info;
????????????????}
????????????????$info?=?Goods::model()->findByPk($id);
????????????????Yii::app()->cache->set('goods_info'.$id,$info,10);
????????????????return?$info;
????????????}

不帶緩存情況下的Detail

????????public?function?actionDetail($id)
????????{
????????????$goods_model?=?Goods::model();
????????????$goods_info?=?$goods_model->findByPk($id);
????????????$this->render('detail',array('goods_info'=>$goods_info));
????????}

帶緩存的Detail

????????public?function?actionDetail($id)
????????{
????????????$goods_model?=?Goods::model();
????????????$goods_info?=?$goods_model->getGoodsInfo($id);
????????????$this->render('detail',array('goods_info'=>$goods_info));
????????}