OpenCart 🇺🇦

$sql = "SELECT * FROM `" . DB_PREFIX . "filter_group` fg LEFT JOIN " . DB_PREFIX . "filter_group_description fgd ON (fg.filter_group_id = fgd.filter_group_id) WHERE fgd.language_id = '" . (int)$this->config->get('config_language_id') . "'";

$sort_data = array(
	'fgd.name',
	'fg.sort_order'
);	

if (isset($data['sort']) && in_array($data['sort'], $sort_data)) {
	$sql .= " ORDER BY " . $data['sort'];	
} else {
	$sql .= " ORDER BY fgd.name";	
}

if (isset($data['order']) && ($data['order'] == 'DESC')) {
	$sql .= " DESC";
} else {
	$sql .= " ASC";
}

if (isset($data['start']) || isset($data['limit'])) {
	if ($data['start'] < 0) {
		$data['start'] = 0;
	}					

	if ($data['limit'] < 1) {
		$data['limit'] = 20;
	}	

	$sql .= " LIMIT " . (int)$data['start'] . "," . (int)$data['limit'];
}	

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

return $query->rows;