OpenCart 🇺🇦

$sql = "SELECT COUNT(DISTINCT p.product_id) AS total FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id)";

if (!empty($data['filter_category_id'])) {
	$sql .= " LEFT JOIN " . DB_PREFIX . "product_to_category p2c ON (p.product_id = p2c.product_id)";			
}

$sql .= " WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "'";

if (!empty($data['filter_name'])) {
	$sql .= " AND pd.name LIKE '" . $this->db->escape($data['filter_name']) . "%'";
}

if (!empty($data['filter_model'])) {
	$sql .= " AND p.model LIKE '" . $this->db->escape($data['filter_model']) . "%'";
}

if (!empty($data['filter_price'])) {
	$sql .= " AND p.price LIKE '" . $this->db->escape($data['filter_price']) . "%'";
}

if (isset($data['filter_quantity']) && !is_null($data['filter_quantity'])) {
	$sql .= " AND p.quantity = '" . $this->db->escape($data['filter_quantity']) . "'";
}

if (isset($data['filter_status']) && !is_null($data['filter_status'])) {
	$sql .= " AND p.status = '" . (int)$data['filter_status'] . "'";
}

$query = $this->db->query($sql);

return $query->row['total'];