<?php

class CandidatoController 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/default';

	/**
	 * @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 authenticated user to perform 'create' and 'update' actions
				'actions'=>array('index','view','create','update','delete'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin'),
				'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 Candidato;

		// Uncomment the following line if AJAX validation is needed
		//$this->performAjaxValidation($model);

		if(isset($_POST['Candidato']))
		{
			$model->attributes=$_POST['Candidato'];
                        $foto=CUploadedFile::getInstance($model,'foto');                        

                        if ($model->save()) {
                            $this->guardarFoto($model->id, $foto);
                            $this->redirect(array('view','id'=>$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['Candidato']))
		{   
                    $foto=CUploadedFile::getInstance($model,'foto');                    
                    $model->attributes=$_POST['Candidato'];
                    if($model->save()) {
                        $this->guardarFoto($model->id, $foto);
                        $this->redirect(array('view','id'=>$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();
                        $this->borrarFoto($id);

			// 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()
	{
		$model=new Candidato('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Candidato']))
			$model->attributes=$_GET['Candidato'];

		$this->render('index',array(
			'model'=>$model,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Candidato('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Candidato']))
			$model->attributes=$_GET['Candidato'];

		$this->render('admin',array(
			'model'=>$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)
	{
		$model=Candidato::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
                
                $model->foto = $this->buscarFoto($id);                
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='candidato-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
        
        private function guardarFoto($id, $foto) {
            if (!is_null($foto)) {
                $path = Yii::app()->basePath.'/../fotos/';
                $fichero = $id.'.jpg';
                $foto->saveAs($path.$fichero);
            }
        }
        
        private function borrarFoto($id) {
            $path = Yii::app()->basePath.'/../fotos/';
            $fichero = $id.'.jpg';
            if (file_exists($path.$fichero))
                unlink($path.$fichero);
        }
        
        private function buscarFoto($id) {
            $path = Yii::app()->basePath.'/../fotos/';
            $fichero = $id.'.jpg';
            $url = Yii::app()->request->baseUrl.'/fotos/';
            return file_exists($path.$fichero) ? $url.$fichero : $url.'no_avatar.png';
        }
}