Yii Controller

FacultyController.php

<?php

class FacultyController 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
        );
    }
    
    /**
     * 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 Faculty;
        
        // Uncomment the following line if AJAX validation is needed
        // $this->performAjaxValidation($model);
        
        if (isset($_POST['Faculty'])) {
            $model->attributes = $_POST['Faculty'];
            if ($model->save())
                $this->redirect(array(
                    'view',
                    'id' => $model->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['Faculty'])) {
            $model->attributes = $_POST['Faculty'];
            if ($model->save())
                $this->redirect(array(
                    'view',
                    'id' => $model->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)
    {
        if (Yii::app()->request->isPostRequest) {
            // we only allow deletion via POST request
            $this->loadModel($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'
                ));
        } else
            throw new CHttpException(400, 'Invalid request. Please do not repeat this request again.');
    }
    
    /**
     * Lists all models.
     */
    public function actionIndex()
    {
        $dataProvider = new CActiveDataProvider('Faculty');
        $this->render('index', array(
            'dataProvider' => $dataProvider
        ));
    }
    
    /**
     * Manages all models.
     */
    public function actionAdmin()
    {
        $model = new Faculty('search');
        $model->unsetAttributes(); // clear any default values
        if (isset($_GET['Faculty']))
            $model->attributes = $_GET['Faculty'];
        
        $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 the ID of the model to be loaded
     */
    public function loadModel($id)
    {
        $model = Faculty::model()->findByPk($id);
        if ($model === null)
            throw new CHttpException(404, 'The requested page does not exist.');
        return $model;
    }
    
    /**
     * Performs the AJAX validation.
     * @param CModel the model to be validated
     */
    protected function performAjaxValidation($model)
    {
        if (isset($_POST['ajax']) && $_POST['ajax'] === 'faculty-form') {
            echo CActiveForm::validate($model);
            Yii::app()->end();
        }
    }
}