<?php

class NotaController 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 Nota;
                
		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);
                   
		if(isset($_POST['Nota']))
		{
			$model->attributes=$_POST['Nota'];
                        $no_imagen='99.png';
                        $rnd = rand(0,9999);  // generate random number between 0-9999
                        $uploadedFile=CUploadedFile::getInstance($model,'imagen');
                        $fileName = "{$rnd}-{$uploadedFile}";  // random number + file name or puedes usar: $fileName=$uploadedFile->getName();
//                    
          
                        
              if($uploadedFile)  // check if uploaded file is set or not
            {
                
                $uploadedFile->saveAs(Yii::app()->basePath.'/../images/uploads/'.$fileName);
                $model->imagen= $fileName;
            }
           
			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['Nota']))
		{
                       
                      
                      
                 
                    
	$model->attributes=$_POST['Nota'];
        $rnd = rand(0,9999);  // generate random number between 0-9999
        $uploadedFile=CUploadedFile::getInstance($model,'imagen');
       if ($model->imagen==''|| $model->imagen==null) {//si el campo de la imagen está vacio o es null
             
            $fileName = "{$rnd}-{$uploadedFile}";  // random number + file name or puedes usar: $fileName=$uploadedFile->getName();
        }
        else{//ya tenemos una imagen registrada
            $fileName=$model->imagen;
        }
         
        if($uploadedFile)  // check if uploaded file is set or not
        {
             
            $uploadedFile->saveAs(Yii::app()->basePath.'/../images/uploads/'.$fileName);
            $model->imagen=$fileName;
         
        }
         
       
			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)
	{
		$this->loadModel($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()
	{
		$dataProvider=new CActiveDataProvider('Nota');
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Nota('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Nota']))
			$model->attributes=$_GET['Nota'];

		$this->render('admin',array(
			'model'=>$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 $id the ID of the model to be loaded
	 * @return Nota the loaded model
	 * @throws CHttpException
	 */
	public function loadModel($id)
	{
		$model=Nota::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param Nota $model the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='nota-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}