/**
* Perform minimal validation on the grade form
* @param array $data
* @param array $files
*/
public function validation($data, $files)
{
global $DB;
$errors = parent::validation($data, $files);
$instance = $this->setaskment->get_instance();
if ($instance->markingworkflow && !empty($data['sendstudentnotifications']) && $data['workflowstate'] != ASSIGN_MARKING_WORKFLOW_STATE_RELEASED) {
$errors['sendstudentnotifications'] = get_string('studentnotificationworkflowstateerror', 'setask');
}
// Advanced grading.
if (!array_key_exists('grade', $data)) {
return $errors;
}
if ($instance->grade > 0) {
if (!unformat_float($data['grade'], true) && !empty($data['grade'])) {
$errors['grade'] = get_string('invalidfloatforgrade', 'setask', $data['grade']);
} else {
if (unformat_float($data['grade']) > $instance->grade) {
$errors['grade'] = get_string('gradeabovemaximum', 'setask', $instance->grade);
} else {
if (unformat_float($data['grade']) < 0) {
$errors['grade'] = get_string('gradebelowzero', 'setask');
}
}
}
} else {
// This is a scale.
if ($scale = $DB->get_record('scale', array('id' => -$instance->grade))) {
$scaleoptions = make_menu_from_list($scale->scale);
if ((int) $data['grade'] !== -1 && !array_key_exists((int) $data['grade'], $scaleoptions)) {
$errors['grade'] = get_string('invalidgradeforscale', 'setask');
}
}
}
return $errors;
}
/**
* 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', 'setask')));
if ($userid = $this->setaskment->get_user_id_for_uniqueid($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;
}