[Closed] Display discount over original price

Code: Select all

<?xml version="1.0" encoding="utf-8"?>
<modification>
  <name>Customer Group Special + Discount Display</name>
  <code>customer_group_special_with_display</code>
  <version>1.0</version>
  <author>khnaz35</author>
  <link>mailto:khnaz35@gmail.com</link>

  <!-- Modify controller logic -->
  <file path="catalog/controller/product/product.php">
  
    <!-- Inject customer group price logic before special block -->
    <operation>
      <search><![CDATA[
if (!is_null($product_info['special']) && (float)$product_info['special'] >= 0) {
]]></search>
      <add position="before"><![CDATA[
$data['price_value'] = (float)$product_info['price'];

$this->load->model('catalog/product');

// Default special price
$customer_group_special = $product_info['special'];

$specials = $this->model_catalog_product->getProductSpecials([
  'filter_product_id' => $product_info['product_id']
]);

foreach ($specials as $s) {
  if ((int)$s['customer_group_id'] === (int)$this->customer->getGroupId()) {
    $customer_group_special = $s['price'];
    break;
  }
}
]]></add>
    </operation>

    <!-- Replace special price assignment with customer-group version -->
    <operation>
      <search><![CDATA[
$data['special'] = $this->currency->format($this->tax->calculate($product_info['special'], $product_info['tax_class_id'], $this->config->get('config_tax')), $this->session->data['currency']);
]]></search>
      <replace><![CDATA[
$data['special'] = $this->currency->format($this->tax->calculate($customer_group_special, $product_info['tax_class_id'], $this->config->get('config_tax')), $this->session->data['currency']);
$data['special_value'] = (float)$customer_group_special;
]]></replace>
    </operation>

  </file>

  <!-- Inject 'You save %' into product.twig after special price -->
  <file path="catalog/view/theme/*/template/product/product.twig">
    <operation>
      <search><![CDATA[<h2>{{ special }}</h2>]]></search>
      <add position="after"><![CDATA[
{% if price_value and special_value and price_value > special_value %}
  <li><strong class="price-saving">You save {{ ((price_value - special_value) / price_value * 100)|round }}%</strong></li>
{% endif %}
]]></add>
    </operation>
  </file>
</modification>