backend/components/ImageUploader.php

<?php
/**
 * Created by PhpStorm.
 * User: vitaliy
 * Date: 05.10.15
 * Time: 16:18
 */
namespace backend\components;
use yii\base\Widget;
class ImageUploader extends Widget
{
    public $height = 0;
    public $width = 0;
    public $field;
    public $file;
    public $model;
    public $multi = false;
    public $gallery;
    public $name = 'Add file...';
    public function init(){
        parent::init();
    }
    public function run()
    {
        return $this->render('image_sizer',
            [
                'model'=>$this->model,
                'field' => $this->field,
                'height' => $this->height,
                'width' => $this->width,
                'multi'  => $this->multi,
                'name'  => $this->name
            ]);
    }
    public function getGallery(){
        if($this->gallery){
            $array = explode(",", $this->gallery);
            if(count($array) > 1){
                array_pop($array);
            }
            return $array;
        } else {
            return array();
        }
    }
}