/**
* Get the next row of data from the csv file (only the columns we care about)
*
* @return stdClass or false The stdClass is an object containing user, grade and lastmodified
*/
public function next()
{
global $DB;
$result = new stdClass();
while ($record = $this->csvreader->next()) {
$idstr = $record[$this->idindex];
// Strip the integer from the end of the participant string.
$id = substr($idstr, strlen(get_string('hiddenuser', 'assign')));
if ($userid = $this->assignment->get_user_id_for_uniqueid($id)) {
if (array_key_exists($userid, $this->validusers)) {
$result->grade = $record[$this->gradeindex];
$result->modified = strtotime($record[$this->modifiedindex]);
$result->user = $this->validusers[$userid];
$result->feedback = array();
foreach ($this->feedbackcolumnindexes as $description => $details) {
if (!empty($details['index'])) {
$details['value'] = $record[$details['index']];
$result->feedback[] = $details;
}
}
return $result;
}
}
}
// If we got here the csvreader had no more rows.
return false;
}
