4、Controller
三张表介绍完了后，下面就应当介绍Controller了，同样的我们使用Gii生成主表（A表）的CRUD后就能得到controller，我们只需要对其进行一些修改即可，代码如下
SocialRelationController.php
<?php class SocialRelationController extends Controller { /** * @var string the default layout for the views. Defaults to '//layouts/column2', meaning * using two-column layout. See 'protected/views/layouts/column2.php'. */ public $layout='//layouts/column2'; /** * @return array action filters */ public function filters() { return array( 'accessControl', // perform access control for CRUD operations 'postOnly + delete', // we only allow deletion via POST request ); } /** * Specifies the access control rules. * This method is used by the 'accessControl' filter. * @return array access control rules */ public function accessRules() { return array( array('allow', // allow all users to perform 'index' and 'view' actions 'actions'=>array('index','view'), 'users'=>array('*'), ), array('allow', // allow authenticated user to perform 'create' and 'update' actions 'actions'=>array('create','update'), 'users'=>array('@'), ), array('allow', // allow admin user to perform 'admin' and 'delete' actions 'actions'=>array('admin','delete'), 'users'=>array('admin'), ), array('deny', // deny all users 'users'=>array('*'), ), ); } /** * Displays a particular model. * @param integer $id the ID of the model to be displayed */ public function actionView($id) { $this->render('view',array( 'model'=>$this->loadModel($id), )); } /** * Creates a new model. * If creation is successful, the browser will be redirected to the 'view' page. */ public function actionCreate() { $model=new SocialRelation; // Uncomment the following line if AJAX validation is needed // $this->performAjaxValidation($model); if(isset($_POST['SocialRelation'])) { $model->attributes=$_POST['SocialRelation']; if($model->save()) $this->redirect(array('view','id'=>$model->relation_id)); } $this->render('create',array( 'model'=>$model, )); } /** * Updates a particular model. * If update is successful, the browser will be redirected to the 'view' page. * @param integer $id the ID of the model to be updated */ public function actionUpdate($id) { $model=$this->loadModel($id); // Uncomment the following line if AJAX validation is needed // $this->performAjaxValidation($model); if(isset($_POST['SocialRelation'])) { $model->attributes=$_POST['SocialRelation']; if($model->save()) $this->redirect(array('view','id'=>$model->relation_id)); } $this->render('update',array( 'model'=>$model, )); } /** * Deletes a particular model. * If deletion is successful, the browser will be redirected to the 'admin' page. * @param integer $id the ID of the model to be deleted */ public function actionDelete($id) { $this->loadModel($id)->delete(); // if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser if(!isset($_GET['ajax'])) $this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin')); } /** * Lists all models. */ public function actionIndex() { if(Yii::app()->user->id != null){ $dataProvider=new CActiveDataProvider( 'SocialRelation', array('criteria'=>array('condition'=>'user_id='.Yii::app()->user->id, )) ); $this->render('index',array( 'dataProvider'=>$dataProvider, )); } } /** * Manages all models. */ public function actionAdmin() { $model=new SocialRelation('search'); $model->unsetAttributes(); // clear any default values if(isset($_GET['SocialRelation'])) $model->attributes=$_GET['SocialRelation']; $this->render('admin',array( 'model'=>$model, )); } /** * Returns the data model based on the primary key given in the GET variable. * If the data model is not found, an HTTP exception will be raised. * @param integer $id the ID of the model to be loaded * @return SocialRelation the loaded model * @throws CHttpException */ public function loadModel($id) { $model=SocialRelation::model()->findByPk($id); if($model===null) throw new CHttpException(404,'The requested page does not exist.'); return $model; } /** * Performs the AJAX validation. * @param SocialRelation $model the model to be validated */ protected function performAjaxValidation($model) { if(isset($_POST['ajax']) && $_POST['ajax']==='social-relation-form') { echo CActiveForm::validate($model); Yii::app()->end(); } } }
简单介绍下其中各个函数和变量
$layout 就是布局文件的位置了，布局文件如何使用，这里不做讨论
filters 定义过滤器，这里面水很深
accessRules 访问方式，就是那些用户能够访问到这个模块
array('allow', // allow all users to perform 'index' and 'view' actions 'actions'=>array('index','view'), 'users'=>array('*'), ),
allow 表示允许访问的规则如下，deny表示拒绝访问的规则如下。
action表示规定规则使用的动作
user表示规则适用的用户群组，*表示所有用户,@表示登录后的用户,admin表示管理员用户
actionXXX 各个action函数
这里值得注意的是 这个函数