You will need to edit core code to get this. Better option is to make an extension
But try this if it works for you because I think you have some custom code already:
https://github.com/abantecart/abantecart-src/blob/master/public_html/storefront/controller/pages/product/product.php#L750if(isset($category_info) && count($category_info) > 0){
$nextPrevProducts = $this->model_catalog_product->getProductNextPrevProducts($product_id, $category_info['category_id']);
$this->data['nextPrevProducts'] = $nextPrevProducts;
}
right above foreach ($results as $result) {
-----
https://github.com/abantecart/abantecart-src/blob/master/public_html/storefront/model/catalog/product.phpAdd this before last } line
public function getProductNextPrevProducts($productId, $categoryId){
$sql = "SELECT * FROM " . $this->db->table("products_to_categories") . " WHERE `category_id` = $categoryId and product_id in ( select product_id from " . $this->db->table("products") . " where STATUS = 1)";
$query = $this->db->query($sql);
$product_data = $query->rows;
$nextPrevProduct = array();
if(count($product_data) > 0){
foreach($product_data as $k => $v){
if($v['product_id'] == $productId){
$preProductId = isset($product_data[$k - 1]['product_id']) ? $product_data[$k - 1]['product_id'] : 0;
$nextProductId = isset($product_data[$k + 1]['product_id']) ? $product_data[$k + 1]['product_id'] : 0;
$cateSql = "SELECT keyword FROM `url_aliases` WHERE `query` LIKE 'category_id=$categoryId'";
$cateSqlQuery = $this->db->query($cateSql);
$cateURL = count($cateSqlQuery->rows) > 0 ? $cateSqlQuery->row['keyword']: '';
$prevProductSql = "SELECT keyword FROM `url_aliases` WHERE `query` LIKE 'product_id=$preProductId'";
$prevProductSqlQuery = $this->db->query($prevProductSql);
$prevProductURL = count($prevProductSqlQuery->rows) > 0 ? $prevProductSqlQuery->row['keyword']: '';
$nextProductSql = "SELECT keyword FROM `url_aliases` WHERE `query` LIKE 'product_id=$nextProductId'";
$nextProductSqlQuery = $this->db->query($nextProductSql);
$nextProductURL = count($nextProductSqlQuery->rows) > 0 ? $nextProductSqlQuery->row['keyword']: '';
$nextPrevProduct['prev_product'] = (trim($prevProductURL) != '') ? $cateURL . "/" . $prevProductURL : '';
$nextPrevProduct['next_product'] = (trim($nextProductURL) != '') ? $cateURL . "/" . $nextProductURL : '';
}
}
}
return $nextPrevProduct;
}
And last go to product.tpl and add this code where ever you want buttons and style it the way you want.
https://github.com/abantecart/abantecart-src/blob/master/public_html/storefront/view/default/template/pages/product/product.tpl#L268<?php if(is_array($nextPrevProducts)){ ?>
<div>
<div style="float: left">
<?php if(trim($nextPrevProducts['prev_product']) != '') {?>
<a href="<?php echo trim($nextPrevProducts['prev_product']); ?>" > Previous Product </a>
<?php } ?>
</div>
<div style="float: right">
<?php if(trim($nextPrevProducts['next_product']) != '') {?>
<a href="<?php echo trim($nextPrevProducts['next_product']); ?>" > Next Product </a>
<?php } ?>
</div>
</div>
<?php } ?>
You can contact AbanteCart developers (they have paid service abantecart.com/contact-us) or some other developers
https://www.fiverr.com/nattoben This developer has made few extension for AbanteCart he might be able to help you
https://marketplace.abantecart.com/index.php?rt=product/vendor&v=40 P.S I am not promoting anyone here just trying to help you as what you want is not an easy thing. It needs some custom development