CodeIgniter- active record insert if new or update on duplicate

Question

Is it possible to do an active record query in CodeIgniter that will update an existing record if one already exists or insert if it doesnt, for the given k

Answer 1

Here is a method that I hope can accomplish the same

   /**
    * Used to insert new row if a duplicate entry is encounter it performs an update
    * @param string $table table name as string
    * @param array $data associative array of data and columns
    * @return mixed 
    */
   private function updateOnExist($table, $data)
   {
        $columns    = array();
        $values     = array();
        $upd_values = array();
        foreach ($data as $key => $val) {
            $columns[]    = $this->db->escape_identifiers($key);
            $val = $this->db->escape($val);
            $values[]     = $val;
            $upd_values[] = $key.'='.$val;
        }
        $sql = "INSERT INTO ". $this->db->dbprefix($table) ."(".implode(",", $columns).")values(".implode(', ', $values).")ON DUPLICATE KEY UPDATE".implode(",", $upd_values);
        return $this->db->query($sql);
}