Create an order and INCREASE the quantity of the selected product

[mirkos90]

Hi to all!

I've a little problem, i've writed this class for decrease the quantity of a product and make an order in prestashop:

$context = Context::getContext();
$id_cart = $context->cookie->__get('id_cart');
$cart = new Cart($id_cart);
$cart->id_currency = $context->cookie->id_currency;
$cart->id_carrier = 1;
$cart->recyclable = 0;
$cart->gift = 0;
$cart->id_customer = 92;
$cart->id_lang = $context->cookie->id_lang;
$cart->add();
$cart->updateQty(1,$id_product);
$total = (float)($cart->getOrderTotal(true, Cart::BOTH));
$currency = $this->context->currency;
$customer = new Customer($cart->id_customer);
//($cart->id, Configuration::get('PS_OS_BANKWIRE'), $total, $this->module->displayName, NULL, $mailVars, (int)$currency->id, false, $customer->secure_key);
$prodotti = $cart->getProducts();
PaymentModule::validateOrder($cart->id,'7',$total);

Now I need to write a similar function for make an order and increase the quantity of the selected product, how I can do it? I tried to change the sign of the quantity in the function updateQty, but it did not work. How I can do it?

 

Thank you!

[PascalVG]

Hi Mirkos,

 

Looking at file classes/Cart.php

 

you have the function updateQty defined:

 

/**

* Update product quantity

*

* @param integer $quantity Quantity to add (or substract)

* @param integer $id_product Product ID

* @param integer $id_product_attribute Attribute ID if needed

* @param string $operator Indicate if quantity must be increased or decreased

*/

public function updateQty($quantity, $id_product, $id_product_attribute = null, $id_customization = false, $operator = 'up', $id_address_delivery = 0, Shop $shop = null, $auto_add_cart_rule = true)

{

...

 

 

So instead of using -1 or so for the first parameter, try to use  and combined with 'up' or 'down'

 

like:

$cart->updateQty(1,$id_product, null, false, 'up');

 

and

$cart->updateQty(1,$id_product, null, false, 'down');

 

 

 

I think that's what you need.

 

Let me know if it works,

pascal.

[mirkos90]

Hi Pascal! Thanks for your answer!

I've tried with your solution, now my code is:

$context = Context::getContext();
$id_cart = $context->cookie->__get('id_cart');
$cart = new Cart($id_cart);
$cart->id_currency = $context->cookie->id_currency;
$cart->id_carrier = 1;
$cart->recyclable = 0;
$cart->gift = 0;
$cart->id_customer = 92;
$cart->id_lang = $context->cookie->id_lang;
$cart->add();
$cart->updateQty(1,$id_product,null,false,'down');
$total = (float)($cart->getOrderTotal(true, Cart::BOTH));
$currency = $this->context->currency;
$customer = new Customer($cart->id_customer);
$prodotti = $cart->getProducts();
PaymentModule::validateOrder($cart->id,'2',$total);

If I set the id of the status to 7 nothing happens, no order is created and no quantity is increased.

But if i go to set the status to 2, prestashop give me an exception:

[PrestaShop] Fatal error in module PaymentModule:
Call to a member function addOrderPayment() on a non-object

Why there is this error?

 

Thanks!

[mirkos90]

Bump, please help me guys :S

 

Thanks!

[mirkos90]

Upupup² :S

Mirko