CakePHP 3: Array aus Cookie löschen und aktualisieren

Question

Ich benutze CakePHP 3.2 zum Schreiben einer Warenkorb-Anwendung.

Ich verwende Cookies, um Artikel zum Warenkorb hinzuzufügen.

Jetzt möchte ich den Wert aus dem Warenkorb aktualisieren und löschen. Wenn der Benutzer auf das gleiche Produkt add to cart mit einem anderen quantity Wert klickt, wird der vorhandene Datensatz gelöscht und neue werden zum Warenkorb hinzugefügt.

Dies ist meine addToCart() Methode.

public function addToCart() 
{ 
    $this->loadModel('Products'); 

    if ($this->request->is('post')) { 
    $p_id = $this->request->data('product_id'); 
    $p_quantity = $this->request->data('qnty'); 

$product = $this->Products->get($p_id); 

$product->quantity = $p_quantity; 

if (!$product) { 
    throw new NotFoundException(__('Invalid Product')); 
} 

    $cart = $this->Cookie->read('Cart') ? $this->Cookie->read('Cart') : []; 

    $itemInCart = false; 
    $itemUpdated = false; 
    if ($cart != null) { 
    foreach($cart as $cart_item): 
     if ($cart_item['id'] == $p_id) { 
     if ($cart_item['quantity'] != $p_quantity) { 
      $this->Cookie->delete('Cart.'.$cart_item); // line 148 
      $cart[] = $product; 
      $this->Cookie->write('Cart', $cart); 
      $itemsCount = count($this->Cookie->read('Cart')); 
      $this->Flash->success('Product updated in cart'); 
      return $this->redirect($this->referer); 
     } 
     $itemInCart = true; 
     } 
    endforeach; 
    } 

    if (!$itemInCart) { 
    $cart[] = $product; 
    $this->Cookie->write('Cart', $cart); 

    $itemsCount = count($this->Cookie->read('Cart')); 

    if ($itemUpdated) { 
     $this->Flash->success(__('Product updated in cart')); 
    } else { 
     $this->Flash->success(__('Product added to cart')); 
    } 

    return $this->redirect($this->referer()); 
    } else { 
    $this->Flash->success(__('Product is already in cart')); 
    return $this->redirect($this->referer()); 
    } 

    } 
} 

Aber dies gibt Fehler als

Notice (8): Array to string conversion [APP/Controller/OrdersController.php, line 148] 

Wie kann ich die Menge Wert im Warenkorb aktualisieren.

Answer 1

Versuchen Sie Folgendes:

public function addToCart() 
{ 
    $this->loadModel('Products'); 

    if ($this->request->is('post')) { 
     $p_id = $this->request->data('product_id'); 
     $p_quantity = $this->request->data('qnty'); 

     $product = $this->Products->get($p_id); 

     if (!$product) { 
      throw new NotFoundException(__('Invalid Product')); 
     } 

     $product->quantity = $p_quantity; 

     $cart = $this->Cookie->read('Cart') ? $this->Cookie->read('Cart') : []; 

     $itemInCart = false; 
     $new_cart = []; 
     if ($cart != null) { 
      foreach($cart as $cart_item):    
       if ($cart_item['id'] == $p_id) {      
        if($p_quantity == 0){ 
         //Removed the item from cart and set itemInCart to true 
         $itemInCart = true; 
        }else{ 
         //update the quantity of item 
         $new_cart[] = $product; 
         $itemInCart = true; 
        }     
       }else{ 
        $new_cart[] = $cart_item; 
       } 
      endforeach; 
     } 

     if ($itemInCart) {  
      $this->Cookie->write('Cart', $new_cart); 
      $this->Flash->success(__('Product updated in cart')); 
     } else { 
      $cart[] = $product; 
      $this->Cookie->write('Cart', $cart); 
      $this->Flash->success(__('Product added to cart')); 
     } 
     return $this->redirect($this->referer); 
    } 
}