Manually add products to cart with discount

[antonio9357]

Hi there!

 

I developed a set configurator module for a customer, which allows users to configure their own set with right products (different sizes, different types, etc...).

 

Everything fine: the user completes all steps and then adds automatically all products to cart.

 

 

Step 9:

 

TPL:

{foreach from=$smarty.post.pcs key=product_id item=pieces}
    <input class="total-prod-pcs" type="hidden" name="pcs" data-prod-id="{$product_id}" data-prod-price="{convertPrice price=$ProductPrice}" value="{$pieces}" id="pcs{$product_id}">
{/foreach}
<button type="button" class="add-to-cart-configurator">GO!</button> 

JAVASCRIPT:

$('.add-to-cart-configurator').click(function() {
    $('.loading-page').show();
    $(".total-prod-pcs").each(function(){
        var pcs = $(this).val();
        var id = $(this).data("prod-id");
        var totalprice = $('#totalprice').val();
        var fullprice = $('#fullprice').val();
        $.get('{/literal}{$link->getPageLink('cart')|escape:'html':'UTF-8'}{literal}?add=1&qty=' + pcs + '&id_product=' + id + '&token={/literal}{$token}{literal}');
        }).promise().done(function () { 
            window.location.href = '{/literal}{$link->getModuleLink('twconfigurator', 'configurator')}{literal}?step=10&fullp={/literal}{if $smarty.post.fullprice}{$smarty.post.fullprice}{/if}{literal}&discp={/literal}{if $smarty.post.totalprice}{$smarty.post.totalprice}{/if}{literal}';
     });
});

Here comes the problem: as my customer requests, ALL customers that buy a complete set (using configurator) become a 10% discount on all inserted products.

 

I tried to add a cart rule to cart to assign a discount.

 

Step 10:

 

TPL

<a class="configurator-button-reverse" href="{$link->getModuleLink('twconfigurator', 'discount')}?gill={$cookie->id_cart}">
     <i class="fa fa-shopping-cart"></i> {l s='Terminate and go to cart' mod='twconfigurator'}
</a> 

PHP

protected function SetCartDiscount($cart) {
     Db::getInstance()->execute('
          INSERT INTO `'._DB_PREFIX_.'cart_cart_rule` (id_cart_rule,id_cart)
          VALUES (1,'.(int)$cart.')
          ON DUPLICATE KEY UPDATE
          id_cart_rule = VALUES(id_cart_rule),
          id_cart = VALUES(id_cart)'
     );
     header('Location: '.$this->context->link->getPageLink('order-opc',false));
}

This is not working, in fact every time i click the button nothing happens BUT, if I go back to step 10 and click the button again it works.

 

I tried to remove the header redirect to see how the function affects the database and, until the user will be not redirect to cart, the cart rule is inserted.

 

It seems that the cart doesn't accept the rule.

 

Can you help me with this? How can I fix it?

 

If you have other ideas, you're obviously welcome!

 

Thanks in advance!

Edited November 7, 2016 by antonio9357 (see edit history)