/**
* Imports the users defined in the csv file, iterating each row. This is made under the transaction initiated in import_data
* function.
*
* @param object $usersfile Course csv file.
* @param object $formdata Submitted form data, needed to load the csv.
* @param int $courseid Generated course id in this transaction.
* @param \block_mycourse_recommendations\database_helper $db Database handler object, passed as argument to instance it
* again.
*/
public static function import_users($usersfile, $formdata, $courseid, $db)
{
$iid = \csv_import_reader::get_new_iid('usersfile');
$csvreader = new \csv_import_reader($iid, 'usersfile');
$csvreader->load_csv_content($usersfile, $formdata->encoding, $formdata->delimiter_name);
$csvreader->init();
$fields = $csvreader->get_columns();
while ($fields) {
$userid = $fields[0];
$grade = $fields[1];
$db->insert_historic_user_enrol($userid, $grade, $courseid);
self::$lastinsertedusers++;
$fields = $csvreader->next();
}
$csvreader->close();
}
