public function importproduct() {
    // El archivo csv debe estar en la ruta /app/webroot/csv/nombre.csv
    $filename = WWW_ROOT . DS . 'csv' . DS . 'nombre.csv';
        // open the file
        $handle = fopen($filename, "r");
        // read the 1st row as headings
        $header = fgetcsv($handle);
        // create a message container
        $return = array(
            'messages' => array(),
            'errors' => array(),
        );
        $i = 0;
        $records = 0;
        $data = array();
         // read each data row in the file
        while (($row = fgetcsv($handle)) !== FALSE) {
            // for each header field
            foreach ($header as $k=>$head) {
                // get the data field from Model.field
                if (strpos($head,'.')!==false) {
                    $h = explode('.',$head);
                    $data[$h[0]][$h[1]]=(isset($row[$k])) ? $row[$k] : '';
                }
                // get the data field from field
                else {
                    $data[$i]['Product'][$head]=(isset($row[$k])) ? $row[$k] : '';
                    $temp['Product'][$head]=(isset($row[$k])) ? $row[$k] : '';
                    if ($head == 'category') {
                        $temp['Product']['category_id'] = $this->strToUrl($row[$k]);
                    }
                }
            }
            if ($this->Product->save($temp)) {
                $records++;
            }
            $i++;
        }
        echo "Fueron grabados ".$records." productos";
        debug($data);
        // close the file
        fclose($handle);
    }