YII进行数据增删改查分析

关于模型部分參考http://blog.csdn.net/buyingfei8888/article/details/40208729

控制器部分：

<?php
	class GoodsController extends Controller{
		function actionShow(){
			$goods_model = Goods::model(); //简单查询能够通过模型里面静态方法来创建
			$sql = "select goods_id,goods_name,goods_price,goods_create_time from {{goods}} limit 10";
                        $goods_infos = $goods_model ->findAllBySql($sql);//通过原生态sql进行查询。findALlBySql返回一个对象数组，
//                        var_dump($goods_infos);
//			foreach($goods_infos as $v){
//				echo $v ->goods_name ."<br />";
//			}
//                       exit();
			$this->render('show',array("goods_infos"=>$goods_infos)); //这样的方式会渲染布局
                        //$this->renderPartial('add',array('goods_model' => $goods_model)); //这样的方式不会渲染布局
		}

		function actionAdd(){
                    $goods_model = new Goods();
                    if(isset($_POST['Goods'])){
//                    $goods_model->goods_name = 'apple phone';
//                    $goods_model->goods_price = '5199';
//                    $goods_model->goods_weight=102;
                        //对上面代码优化
                      foreach($_POST['Goods'] as $_k => $_v){
                          $goods_model -> $_k = $_v;
                      }
                    }
                    if($goods_model->save()){
                        $this ->redirect('./index.php?r=houtai/goods/show');
                    }else{
                        echo "error";
                    }
//                    $this->renderPartial('add',array('goods_model' => $goods_model));
		}

                /*
                 * YII 对get优化，作为參数传递进来
                 * 模板和加入时模板基本一样。直接复制略微改动即可。都是通过小物件 ，自己主动会把数据关联起来，节省开发成本
                 */
		function actionUpdate($id){
                     //除了加入数据进行 new Goods()。 别的都是调用静态方法 调用save方法运行是insert
                    // Goods：：model（）调用save方法运行是update
                    $goods_model =  Goods::model();
                    $goods_info = $goods_model ->findByPk($id);  //$goods_info 是 数据模型对象
                    if(isset($_POST['Goods'])){
                        foreach($_POST['Goods'] as $_k => $_v){
                            $goods_info -> $_k  = $_v;
                        }

                        if($goods_info -> save()){
                            $this ->redirect('./index.php?r=houtai/goods/show');
                        }
                    }
			$this->renderPartial('update',array('goods_model' => $goods_info ));
		}
                function actionDel($id){
                    //依据$id获得被删除数据对象。通过该对象调用delete方法就ok
                    $goods_mode = Goods::model();
                    $goods_info = $goods_mode ->findByPk($id); //获得被删除商品模型对象
                    if($goods_info ->delete() ){
                        $this ->redirect('./index.php?r=houtai/goods/show');
                    }else{
                        echo 'error';
                    }

                }
                function actionJia(){
                    $goods_model = new Goods();
//                    $goods_model=Goods::model();
                    $goods_model->goods_name = 'apple phone';
                    $goods_model->goods_price = '5199';
                    $goods_model->goods_weight=102;
                    var_dump($goods_model->save());
                   // var_dump($goods_model);
                    if($goods_model->save()){
                        echo 'success';
                    }else{
                        echo "error";
                    }

                }
	}
?>

通过这个url（http://localhost/shop/index.php?r=houtai/goods/show）show视图：

部分源代码：

<table class="table_a" border="1" width="100%">
                <tbody><tr style="font-weight: bold;">
                        <td>序号</td>
                        <td>商品名称</td>
                        <td>库存</td>
                        <td>价格</td>
                        <td>图片</td>
                        <td>缩略图</td>
                        <td>品牌</td>
                        <td>创建时间</td>
                        <td align="center">操作</td>
                    </tr>
                    <?php
                         $i=1;
                        foreach($goods_infos as $_v){
                    ?>
                    <tr id="product1">
                        <td><?php echo $i++;?

></td>
                        <td><a href="#">苹果（APPLE）iPhone 4S<?

php echo $_v->goods_name;?></a></td>
                        <td><?php echo $_v->goods_number;?></td>
                        <td><?

php echo $_v->goods_price ;?></td>
                        <td><img src="<?PHP ECHO HOUTAI_IMG_URL ;?><?php  echo $_v->goods_big_img;?

>" height="60" width="60"></td>
                        <td><img src="<?PHP ECHO HOUTAI_IMG_URL ;?><?php echo $_v->goods_small_img;?

>" height="40" width="40"></td>
                        <td><?php echo $_v->goods_brand_id;?

></td>
                        <td><?php echo $_v->goods_create_time;?

></td>
                        <td><a href="./index.php?r=houtai/goods/update&id=<?php echo $_v->goods_id;?>">改动</a></td>
<!--                        <td><a href="./index.php?r=houtai/goods/update&id=<?

php// echo $_v->goods_id;?>&name=test">改动</a></td>-->
                        <td><a href="./index.php?r=houtai/goods/del&id=<?

php echo $_v->goods_id;?

> "> 删除</a></td>
                    </tr>
                    <?

php 

                        }
                    ?

>

                    <tr>
                        <td colspan="20" style="text-align: center;">
                            [1]
                        </td>
                    </tr>
                </tbody>
            </table>

add模板部分源代码：

           <?

php $form =  $this ->  beginWidget("CActiveForm");?>
<!-- 调用了  CActiveForm 类
      如何查找CActiveForm类。在\framework\yiilite.php 里查找，这个文件10000多行。可见yii核心代码就是这么多行
      通过这个在找到 CActiveForm所在文件   CActiveForm.php包括了非常多方法。

就是对表单元素操作
-->
            <table border="1" width="100%" class="table_a">
                <tr>
<!--                    <td>商品名称</td>-->
<!--                    <td><input type="text" name="f_goods_name" /></td>-->
                    <td><?

php echo $form->labelEx($goods_model,'goods_name');?

></td>
                    <td><?php echo $form -> textField($goods_model,'goods_name');?

></td>
                </tr>
                 <tr>

                    <td><?php echo $form->labelEx($goods_model,'goods_weight');?

></td>
                   <td> <?php echo $form -> textField($goods_model,'goods_weight');?></td>
                </tr>
                 <tr>

                    <td><?php echo $form->labelEx($goods_model,'goods_price');?></td>
                   <td> <?php echo $form -> textField($goods_model,'goods_price');?></td>
                </tr>
                <tr>

                    <td><?php echo $form->labelEx($goods_model,'goods_number');?></td>
                   <td> <?php echo $form -> textField($goods_model,'goods_number');?></td>
                </tr>
                <tr>

                    <td><?php echo $form->labelEx($goods_model,'goods_category_id');?></td>
                   <td> <?

php echo $form -> textField($goods_model,'goods_category_id');?

></td>
                </tr>
                 <tr>

                    <td><?

php echo $form->labelEx($goods_model,'goods_brand_id');?

></td>
                    <td><?

php echo $form -> textField($goods_model,'goods_brand_id');?

></td>
                </tr>
                <tr>

                    <td><?php echo $form->labelEx($goods_model,'goods_introduce');?></td>
                    <td><?php echo $form -> textArea($goods_model,'goods_introduce',array('cols' => 20,"rows" => 5));?></td>
                </tr>
            </table>
            <td colspan="2" align="center">
                        <input type="submit" value="加入">
                    </td>
            <?php $this->endWidget();?>
 

改动和上面基本同样：

<?php $form =  $this ->  beginWidget("CActiveForm");?

>
<!-- 调用了  CActiveForm 类
      如何查找CActiveForm类。在\framework\yiilite.php 里查找，这个文件10000多行，可见yii核心代码就是这么多行
      通过这个在找到 CActiveForm所在文件   CActiveForm.php包括了非常多方法。就是对表单元素操作
-->
            <table border="1" width="100%" class="table_a">
                <tr>
<!--                    <td>商品名称</td>-->
<!--                    <td><input type="text" name="f_goods_name" /></td>-->
                    <td><?php echo $form->labelEx($goods_model,'goods_name');?></td>
                    <td><?

php echo $form -> textField($goods_model,'goods_name');?></td>
                </tr>
                 <tr>

                    <td><?

php echo $form->labelEx($goods_model,'goods_weight');?

></td>
                   <td> <?php echo $form -> textField($goods_model,'goods_weight');?></td>
                </tr>
                 <tr>

                    <td><?php echo $form->labelEx($goods_model,'goods_price');?></td>
                   <td> <?

php echo $form -> textField($goods_model,'goods_price');?

></td>
                </tr>
                <tr>

                    <td><?

php echo $form->labelEx($goods_model,'goods_number');?></td>
                   <td> <?php echo $form -> textField($goods_model,'goods_number');?></td>
                </tr>
                <tr>

                    <td><?php echo $form->labelEx($goods_model,'goods_category_id');?></td>
                   <td> <?php echo $form -> textField($goods_model,'goods_category_id');?></td>
                </tr>
                 <tr>

                    <td><?php echo $form->labelEx($goods_model,'goods_brand_id');?></td>
                    <td><?php echo $form -> textField($goods_model,'goods_brand_id');?></td>
                </tr>
                <tr>

                    <td><?

php echo $form->labelEx($goods_model,'goods_introduce');?></td>
                    <td><?

php echo $form -> textArea($goods_model,'goods_introduce',array('cols' => 20,"rows" => 5));?></td>
                </tr>
            </table>
            <td colspan="2" align="center">
                        <input type="submit" value="改动">
                    </td>
            <?php $this->endWidget();?

>

关于为什么Goods：：model()和new  Goods() 运行save方法会分别调用update 和insert方法能够看CActiveRecord 源代码。