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3 godziny temu, tecniconivelz napisał:

Hello,

Thanks for the help, the first option would be the ideal, but im kinda lost there, what do I have to modify to be able to render the combination references?

 

You will have to override protected function assignAttributesGroups inside ProductController.php and add below line of code at the end of foreach loop. 

//assign reference to each attribute
$groups[$row['id_attribute_group']]['attributes'][$row['id_attribute']]['reference'] = $row['reference'];

Then you will be able to access variable inside product-variants.tpl by calling it {$group_attribute.reference}

{foreach from=$group.attributes key=id_attribute item=group_attribute}
<option value="{$id_attribute}" title="{$group_attribute.name}"{if $group_attribute.selected} selected="selected"{/if}>{$group_attribute.reference} {$group_attribute.name}</option>
{/foreach}

Here you can see what it looks like:

Tested it on version 1.7.8, but should work on 8 aswell. Let us know if you need help creating override. Because if you just modify file directly it will be replaced after you upgrade prestashop to higher version. With override you can keep your modifications.
 

Here is entire function so you can navigate easier while you edit yours:

   protected function assignAttributesGroups($product_for_template = null)
    {
        $colors = [];
        $groups = [];
        $this->combinations = [];

        /** @todo (RM) should only get groups and not all declination ? */
        $attributes_groups = $this->product->getAttributesGroups($this->context->language->id);
        if (is_array($attributes_groups) && $attributes_groups) {
            $combination_images = $this->product->getCombinationImages($this->context->language->id);
            $combination_prices_set = [];
            foreach ($attributes_groups as $k => $row) {
                // Color management
                if (isset($row['is_color_group']) && $row['is_color_group'] && (isset($row['attribute_color']) && $row['attribute_color']) || (file_exists(_PS_COL_IMG_DIR_ . $row['id_attribute'] . '.jpg'))) {
                    $colors[$row['id_attribute']]['value'] = $row['attribute_color'];
                    $colors[$row['id_attribute']]['name'] = $row['attribute_name'];
                    if (!isset($colors[$row['id_attribute']]['attributes_quantity'])) {
                        $colors[$row['id_attribute']]['attributes_quantity'] = 0;
                    }
                    $colors[$row['id_attribute']]['attributes_quantity'] += (int) $row['quantity'];
                }
                if (!isset($groups[$row['id_attribute_group']])) {
                    $groups[$row['id_attribute_group']] = [
                        'group_name' => $row['group_name'],
                        'name' => $row['public_group_name'],
                        'group_type' => $row['group_type'],
                        'default' => -1,
                    ];
                }

                $groups[$row['id_attribute_group']]['attributes'][$row['id_attribute']] = [
                    'name' => $row['attribute_name'],
                    'html_color_code' => $row['attribute_color'],
                    'texture' => (@filemtime(_PS_COL_IMG_DIR_ . $row['id_attribute'] . '.jpg')) ? _THEME_COL_DIR_ . $row['id_attribute'] . '.jpg' : '',
                    'selected' => (isset($product_for_template['attributes'][$row['id_attribute_group']]['id_attribute']) && $product_for_template['attributes'][$row['id_attribute_group']]['id_attribute'] == $row['id_attribute']) ? true : false,
                ];

                //$product.attributes.$id_attribute_group.id_attribute eq $id_attribute
                if ($row['default_on'] && $groups[$row['id_attribute_group']]['default'] == -1) {
                    $groups[$row['id_attribute_group']]['default'] = (int) $row['id_attribute'];
                }
                if (!isset($groups[$row['id_attribute_group']]['attributes_quantity'][$row['id_attribute']])) {
                    $groups[$row['id_attribute_group']]['attributes_quantity'][$row['id_attribute']] = 0;
                }
                $groups[$row['id_attribute_group']]['attributes_quantity'][$row['id_attribute']] += (int) $row['quantity'];
                $this->combinations[$row['id_product_attribute']]['attributes_values'][$row['id_attribute_group']] = $row['attribute_name'];
                $this->combinations[$row['id_product_attribute']]['attributes'][] = (int) $row['id_attribute'];
                $this->combinations[$row['id_product_attribute']]['price'] = (float) $row['price'];

                // Call getPriceStatic in order to set $combination_specific_price
                if (!isset($combination_prices_set[(int) $row['id_product_attribute']])) {
                    $combination_specific_price = null;
                    Product::getPriceStatic((int) $this->product->id, false, $row['id_product_attribute'], 6, null, false, true, 1, false, null, null, null, $combination_specific_price);
                    $combination_prices_set[(int) $row['id_product_attribute']] = true;
                    $this->combinations[$row['id_product_attribute']]['specific_price'] = $combination_specific_price;
                }
                $this->combinations[$row['id_product_attribute']]['ecotax'] = (float) $row['ecotax'];
                $this->combinations[$row['id_product_attribute']]['weight'] = (float) $row['weight'];
                $this->combinations[$row['id_product_attribute']]['quantity'] = (int) $row['quantity'];
                $this->combinations[$row['id_product_attribute']]['reference'] = $row['reference'];
                $this->combinations[$row['id_product_attribute']]['ean13'] = $row['ean13'];
                $this->combinations[$row['id_product_attribute']]['mpn'] = $row['mpn'];
                $this->combinations[$row['id_product_attribute']]['upc'] = $row['upc'];
                $this->combinations[$row['id_product_attribute']]['isbn'] = $row['isbn'];
                $this->combinations[$row['id_product_attribute']]['unit_impact'] = $row['unit_price_impact'];
                $this->combinations[$row['id_product_attribute']]['minimal_quantity'] = $row['minimal_quantity'];
                if ($row['available_date'] != '0000-00-00' && Validate::isDate($row['available_date'])) {
                    $this->combinations[$row['id_product_attribute']]['available_date'] = $row['available_date'];
                    $this->combinations[$row['id_product_attribute']]['date_formatted'] = Tools::displayDate($row['available_date']);
                } else {
                    $this->combinations[$row['id_product_attribute']]['available_date'] = $this->combinations[$row['id_product_attribute']]['date_formatted'] = '';
                }

                if (!isset($combination_images[$row['id_product_attribute']][0]['id_image'])) {
                    $this->combinations[$row['id_product_attribute']]['id_image'] = -1;
                } else {
                    $this->combinations[$row['id_product_attribute']]['id_image'] = $id_image = (int) $combination_images[$row['id_product_attribute']][0]['id_image'];
                    if ($row['default_on']) {
                        foreach ($this->context->smarty->tpl_vars['product']->value['images'] as $image) {
                            if ($image['cover'] == 1) {
                                $current_cover = $image;
                            }
                        }
                        if (!isset($current_cover)) {
                            $current_cover = array_values($this->context->smarty->tpl_vars['product']->value['images'])[0];
                        }

                        if (is_array($combination_images[$row['id_product_attribute']])) {
                            foreach ($combination_images[$row['id_product_attribute']] as $tmp) {
                                if ($tmp['id_image'] == $current_cover['id_image']) {
                                    $this->combinations[$row['id_product_attribute']]['id_image'] = $id_image = (int) $tmp['id_image'];

                                    break;
                                }
                            }
                        }

                        if ($id_image > 0) {
                            if (isset($this->context->smarty->tpl_vars['images']->value)) {
                                $product_images = $this->context->smarty->tpl_vars['images']->value;
                            }
                            if (isset($product_images) && is_array($product_images) && isset($product_images[$id_image])) {
                                $product_images[$id_image]['cover'] = 1;
                                $this->context->smarty->assign('mainImage', $product_images[$id_image]);
                                if (count($product_images)) {
                                    $this->context->smarty->assign('images', $product_images);
                                }
                            }

                            $cover = $current_cover;

                            if (isset($cover) && is_array($cover) && isset($product_images) && is_array($product_images)) {
                                $product_images[$cover['id_image']]['cover'] = 0;
                                if (isset($product_images[$id_image])) {
                                    $cover = $product_images[$id_image];
                                }
                                $cover['id_image'] = (Configuration::get('PS_LEGACY_IMAGES') ? ($this->product->id . '-' . $id_image) : (int) $id_image);
                                $cover['id_image_only'] = (int) $id_image;
                                $this->context->smarty->assign('cover', $cover);
                            }
                        }
                    }
                }
				//assign reference to each attribute
				$groups[$row['id_attribute_group']]['attributes'][$row['id_attribute']]['reference'] = $row['reference'];				
            }

            // wash attributes list depending on available attributes depending on selected preceding attributes
            $current_selected_attributes = [];
            $count = 0;
            foreach ($groups as &$group) {
                ++$count;
                if ($count > 1) {
                    //find attributes of current group, having a possible combination with current selected
                    $id_product_attributes = [0];
                    $query = 'SELECT pac.`id_product_attribute`
                        FROM `' . _DB_PREFIX_ . 'product_attribute_combination` pac
                        INNER JOIN `' . _DB_PREFIX_ . 'product_attribute` pa ON pa.id_product_attribute = pac.id_product_attribute
                        WHERE id_product = ' . $this->product->id . ' AND id_attribute IN (' . implode(',', array_map('intval', $current_selected_attributes)) . ')
                        GROUP BY id_product_attribute
                        HAVING COUNT(id_product) = ' . count($current_selected_attributes);
                    if ($results = Db::getInstance()->executeS($query)) {
                        foreach ($results as $row) {
                            $id_product_attributes[] = $row['id_product_attribute'];
                        }
                    }
                    $id_attributes = Db::getInstance()->executeS('SELECT pac2.`id_attribute` FROM `' . _DB_PREFIX_ . 'product_attribute_combination` pac2' .
                        ((!Product::isAvailableWhenOutOfStock($this->product->out_of_stock) && 0 == Configuration::get('PS_DISP_UNAVAILABLE_ATTR')) ?
                        ' INNER JOIN `' . _DB_PREFIX_ . 'stock_available` pa ON pa.id_product_attribute = pac2.id_product_attribute
                        WHERE pa.quantity > 0 AND ' :
                        ' WHERE ') .
                        'pac2.`id_product_attribute` IN (' . implode(',', array_map('intval', $id_product_attributes)) . ')
                        AND pac2.id_attribute NOT IN (' . implode(',', array_map('intval', $current_selected_attributes)) . ')');
                    foreach ($id_attributes as $k => $row) {
                        $id_attributes[$k] = (int) $row['id_attribute'];
                    }
                    foreach ($group['attributes'] as $key => $attribute) {
                        if (!in_array((int) $key, $id_attributes)) {
                            unset(
                                $group['attributes'][$key],
                                $group['attributes_quantity'][$key]
                            );
                        }
                    }
                }
                //find selected attribute or first of group
                $index = 0;
                $current_selected_attribute = 0;
                foreach ($group['attributes'] as $key => $attribute) {
                    if ($index === 0) {
                        $current_selected_attribute = $key;
                    }
                    if ($attribute['selected']) {
                        $current_selected_attribute = $key;

                        break;
                    }
                }
                if ($current_selected_attribute > 0) {
                    $current_selected_attributes[] = $current_selected_attribute;
                }
            }

            // wash attributes list (if some attributes are unavailables and if allowed to wash it)
            if (!Product::isAvailableWhenOutOfStock($this->product->out_of_stock) && Configuration::get('PS_DISP_UNAVAILABLE_ATTR') == 0) {
                foreach ($groups as &$group) {
                    foreach ($group['attributes_quantity'] as $key => $quantity) {
                        if ($quantity <= 0) {
                            unset($group['attributes'][$key]);
                        }
                    }
                }

                foreach ($colors as $key => $color) {
                    if ($color['attributes_quantity'] <= 0) {
                        unset($colors[$key]);
                    }
                }
            }
            foreach ($this->combinations as $id_product_attribute => $comb) {
                $attribute_list = '';
                foreach ($comb['attributes'] as $id_attribute) {
                    $attribute_list .= '\'' . (int) $id_attribute . '\',';
                }
                $attribute_list = rtrim($attribute_list, ',');
                $this->combinations[$id_product_attribute]['list'] = $attribute_list;
            }
            unset($group);

            $this->context->smarty->assign([
                'groups' => $groups,
                'colors' => (count($colors)) ? $colors : false,
                'combinations' => $this->combinations,
                'combinationImages' => $combination_images,
            ]);
        } else {
            $this->context->smarty->assign([
                'groups' => [],
                'colors' => false,
                'combinations' => [],
                'combinationImages' => [],
            ]);
        }
    }