php - 如何根据opencart购物车页面上的产品类别计算折扣？

Question

我想按类别在购物车页面上分组和显示产品。我的意思是，如果我们有四种产品，那么应该如下所示:

Category 1

• product i
• product ii

Category 2

• product i
• product ii

我还想将每个类别值的总量存储在一个数组中。我正在尝试实现分类折扣。 谢谢。

编辑:- 这是我的购物车页面，我试图在其中根据产品类别显示折扣

假设，如果购物车中有两种产品，并且它们属于两个不同的类别。现在我想根据每个类别的数量来计算折扣。 我在管理部分创建了一个模块，在其中设置所有必需的值，并将其存储到数据库中的表中。

现在，根据管理员中设置的值，我尝试在购物车页面上实现折扣。但我不知道，我该怎么做？

That's why I have no code to place here.

请给我一些想法，以便我可以尝试创建一些东西。 谢谢!!

以下是我的要求--

1. Sale and Delivery Terms:

   • for orders exceeding 600 Francs, delivery is free of charge;
   • for orders less than the above, a delivery charge of 20 Francs, will apply;

2. Discounts and Quantities

   • Red Wines, White Wines:

     • from 36 bottles, each of 750ml, 6% discount;
     • from 60 bottles, each of 750ml, 10% discount;
     • from 84 bottles, each of 750ml, 13% discount.

   • Fortified Wines (sweet):

     • from 12 bottles, each of 750ml, 5% discount.

   • Discount on Pick up:

     • from 24 bottles, each of 750ml, 3% discount.

   • Cash Payment:

     • from 24 bottles, each of 750ml, 3% discount.

   • Cash Payment on Delivery:

     • 3% discount.

Answer 1

可以通过以下方式实现。 我们可以根据类别对所有产品进行排序，然后可以轻松应用任何折扣..

首先你应该对所有产品进行排序 ---

////////////// Grouping Same category products into one array //////////////

$category_id = $this->model_discount_cdiscount->getcategory($product['product_id']);

$array_key = $category_id[0]['category_id']; 

if (array_key_exists($array_key, $this->data['discount']))
{

    $this->data['discount'][$array_key]['total'] = $this->data['discount'][$array_key]['total']+(preg_replace("/[^0-9.]/","",$total));
    $this->data['discount'][$array_key]['quantity'] = $this->data['discount'][$array_key]['quantity']+$product['quantity'];
}
else
{
    $this->data['discount'][$array_key] = array(
            'category_name' => $category_id[0]['name'],
            'category_id' => $array_key,
            'total' => (preg_replace("/[^0-9.]/","",$total)),
            'quantity' => $product['quantity'],
            'length' => $product['length']
        );
}

然后就可以申请了---

////////////////////// Get Discount values from Discount table //////////////////////

foreach($this->data['discount'] as $key2 => $value2)
{
    $this->data['product_match'][] = $this->model_discount_cdiscount->matchDiscount($key2);
}


//////////////////////  Calculate Discount //////////////////////
$total_d =0;
foreach($this->data['discount'] as $discounts)
{
    foreach($this->data['product_match'] as $match)
    {
        if(count($match)!=0)
        {
            if ($discounts['category_id']==$match['category'] AND $discounts['quantity']>=$match['quantity'] AND $discounts['length']==$match['class_value'])
            {

                $dt = ($match['discount']/100)*$discounts['total'];
                $total_d += $dt;
            }
        }
    }

}