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LocalStorage.php
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LocalStorage.php
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<?php
/**
* @link https://www.github.com/hscstudio/yii2-cart
* @copyright Copyright (c) 2016 HafidMukhlasin.com
* @license http://www.yiiframework.com/license/
*/
namespace hscstudio\cart;
/**
* LocalStorage is extended from Storage Class
*
* It's specialty for handling read and write into HTML5 LocalStorage
*
* Usage:
* Configuration in block component look like this
* 'cart' => [
* 'class' => 'hscstudio\cart\Cart',
* 'storage' => [
* 'class' => 'hscstudio\cart\LocalStorage',
* ]
* ],
*
* @author Hafid Mukhlasin <hafidmukhlasin@gmail.com>
* @since 1.0
*
* Inspired from https://github.com/kajyr/LocalStorage
*
*/
class LocalStorage extends Storage
{
private $data;
private $file;
public function init() {
parent::init();
$session = \Yii::$app->session;
$file = $session->has('localStorageFile')?$session->get('localStorageFile'):$session->getId();
$this->file = ".json";
if (file_exists($this->file)) {
$this->data = json_decode(file_get_contents($this->file));
} else {
$this->data = new \stdClass();
}
}
public function read(Cart $cart)
{
if ($this->has($cart->id))
$this->unserialize($this->get($cart->id),$cart);
}
public function write(Cart $cart)
{
$this->set($cart->id,$this->serialize($cart));
}
public function lock($drop, Cart $cart)
{
// not implemented, only for db
}
public function get($key) {
if (isset($this->data->$key)) {
return $this->data->$key;
} else {
return false;
}
}
public function set($key, $value) {
$this->data->$key = $value;
file_put_contents($this->file, json_encode($this->data));
return $value;
}
public function has($key) {
return (isset($this->data->$key));
}
}