Yii upload single file (action "create" and "update")

YII_single_file_upload_create_and_update.php

<?
// There and next:
// webroot.images - path to images forlder (such as Yii::app()->baseurl."/images/")
// if using another forder name (for example: /upload/) - Yii::getPathOfAlias('webroot.upload')
// file_field_name - db field that contains name of uploaded file
// DIRECTORY_SEPARATOR - separator, such as "/" or included folders
// PATH_TO_IMAGE_FOLDER - full path to folder with images

// Previously added CImageHandler and Fancybox extensions
// CImageHandler:
// Copied file ImageHandler to Components folder
// In config/main.php added
	// 'components'=>array(
	//     ...
	//     'ih'=>array(
	//         'class'=>'CImageHandler',
	//     ),
	//     ...
	// )
// Also can use where needed
// $ih = new CImageHandler();
// Fancybox:
// Extension copied to Extensions folder

// Model code
	public function rules()
	{
		return array(
			// ...
			// File types sets based on images upload (change if need)
			// Maximum filesize set in bytes, current based on php.ini values
			array('<file_field_name>', 'file', 'types'=>'jpg, jpeg, gif, png', 'maxSize'=>2097152, 'tooLarge'=>'Размер загружаемого файла не должен превышать 2MB', 'allowEmpty'=>true,'safe' => false),
			// ...
		);
	}
	// Delete file when delete record from database
	protected function beforeDelete()
	{
	    if (parent::beforeDelete()) {
	        if ($this-><file_field_name>)
	            @unlink(Yii::getPathOfAlias('webroot.images') . "DIRECTORY_SEPARATOR" . $this-><file_field_name>);
	        return true;
	    } return false;
	}	

// Controller code
public function actionCreate()
	{
		// <Model> - abstract name of model (need to change)
		$model=new <ModelName>;

		// Ajax validation
		$this->performAjaxValidation($model);

		if(isset($_POST['<ModelName>']))
		{
			// Current date (format example: month-day-year-hour-minute-second)			
			$date = date('m-d-Y-h-i-s', time());
			// <file_field_name> - db field that contains name of uploaded file
			$name = $_FILES['<ModelName>']['name']['<file_field_name>'];
			// filename without extension
			$filename = pathinfo($name, PATHINFO_FILENAME);
			// only current file extension without filename
			$ext = pathinfo($name, PATHINFO_EXTENSION);
			// summary previous variables for new filename
			$imgName = $date.'-'.$filename.'.'.$ext;
			// Set model attributes
			$model->attributes=$_POST['<ModelName>'];
			$model-><file_field_name> = CUploadedFile::getInstance($model,'<file_field_name>');
			if($model->save() && !empty($model-><file_field_name>)){
				// Path to save files
				$imgSrc = Yii::getPathOfAlias('webroot.images').'DIRECTORY_SEPARATOR'.$imgName;
				// Save file
				$model-><file_field_name>->saveAs($imgSrc);
				// Load CImageHandler Component
				Yii::app()->ih 
				// Load original image
				->load($imgSrc)
				// resize to 640x480 with proportional
				->resize(640, 480, true)
				// save and move original image file
				->save($_SERVER['DOCUMENT_ROOT'] . 'PATH_TO_IMAGE_FOLDER'.$imgName);
				// Write filename into database
				$model-><file_field_name> = $imgName;
				// Save model
  				$model->save();
  				// Set success flash message
  				Yii::app()->user->setFlash('success','Подразделение добавлено!');
				$this->redirect(array('view','id'=>$model->id));
			}
			elseif($model->save() && empty($model-><file_field_name>)){
				// Set success flash message
				Yii::app()->user->setFlash('success','Подразделение добавлено!');
				$this->redirect(array('view','id'=>$model->id));
			}
		}

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

	public function actionUpdate($id)
	{
		// Load model
		$model=$this->loadModel($id);
		// Save current field value to variable
		$oldImgName = $model-><file_field_name>;
		// Ajax validation
		$this->performAjaxValidation($model);
		if(isset($_POST['<ModelName>']))
		{
			// Current date (format example: month-day-year-hour-minute-second)			
			$date = date('m-d-Y-h-i-s', time());
			// <file_field_name> - db field that contains name of uploaded file
			$name = $_FILES['<ModelName>']['name']['<file_field_name>'];
			// filename without extension
			$filename = pathinfo($name, PATHINFO_FILENAME);
			// only current file extension without filename
			$ext = pathinfo($name, PATHINFO_EXTENSION);
			// summary previous variables for new filename
			$imgName = $date.'-'.$filename.'.'.$ext;
			// Set model attributes
			$model->attributes=$_POST['<ModelName>'];
			$model-><file_field_name> = CUploadedFile::getInstance($model,'<file_field_name>');
			if($model->save() && !empty($model-><file_field_name>)){
				// Delete previous file
				@unlink(Yii::getPathOfAlias('webroot.images').'DIRECTORY_SEPARATOR'.$oldImgName);
				// Path to save files
				$imgSrc = Yii::getPathOfAlias('webroot.images').'DIRECTORY_SEPARATOR'.$imgName;
				// Save file
				$model-><file_field_name>->saveAs($imgSrc);
				// Load CImageHandler Component
				Yii::app()->ih
				// Load original image 
				->load($imgSrc)
				// resize to 640x480 with proportional
				->resize(640, 480, true)
				// save and move original image file
				->save($_SERVER['DOCUMENT_ROOT'] . 'PATH_TO_IMAGE_FOLDER'.$imgName);
				// Write filename into database
				$model-><file_field_name> = $imgName;
				// Save model
  				$model->save();
  				// Set success flash message
  				Yii::app()->user->setFlash('success','Информация о подразделении изменена!');
				$this->redirect(array('view','id'=>$model->id));
			}
			elseif($model->save() && empty($model-><file_field_name>)){
				// Set <file_field_name> previous value of filename
				$model-><file_field_name> = $oldImgName;
				// Save model
				$model->save();
				// Set success flash message
				Yii::app()->user->setFlash('success','Информация о подразделении изменена!');
				$this->redirect(array('view','id'=>$model->id));
			}
		}

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

// Show current image file on update
// In _form.php:
		echo $form->labelEx($model, '<file_field_name>');
		echo $form->fileField($model, '<file_field_name>');

		if($model->isNewRecord!='1' && !empty($model-><file_field_name>)){ 

		$this->widget('application.extensions.fancybox.EFancyBox', array(
		'target'=>'.fancy-inline',
		'config'=>array(
		'closeBtn' => false,
		'titlePosition'=>'outside',
		'helpers' => array ( 'title' => array ('type' => 'inside' ), 'buttons' => array() )
		)
		)
		);
?>
	<li style="list-style: none;">
    	<a href="#" class="fancy-inline" rel="tooltip" data-title="<data_title>">
			<?php
	        	$prev = CHtml::image(Yii::app()->request->baseUrl . 'PATH_TO_IMAGE_FOLDER'.$model-><file_field_name>, '', array('style' => 'width:100px; height: 100px; border-radius: 15px; box-shadow: 0 1px 4px rgba(0, 0, 0, .3), -23px 0 20px -23px rgba(0, 0, 0, .8), 23px 0 20px -23px rgba(0, 0, 0, .8), 0 0 40px rgba(0, 0, 0, .1) inset;'));
    			echo CHtml::link($prev, Yii::app()->request->baseUrl.'PATH_TO_IMAGE_FOLDER'.$model-><file_field_name>, array('class' => 'fancy-inline', 'rel'=>'group'));                      
            ?>
        </a>			    
	</li>

<?php
        }
		echo $form->error($model, '<file_field_name>');
?>