+ // Conditions: Verify that the grade conditions are numbers, and make sense.
+ if (array_key_exists('conditiongradegroup', $data)) {
+ foreach ($data['conditiongradegroup'] as $i => $gradedata) {
+ if ($gradedata['conditiongrademin'] !== '' &&
+ !is_numeric(unformat_float($gradedata['conditiongrademin']))) {
+ $errors["conditiongradegroup[{$i}]"] = get_string('gradesmustbenumeric', 'condition');
+ continue;
+ }
+ if ($gradedata['conditiongrademax'] !== '' &&
+ !is_numeric(unformat_float($gradedata['conditiongrademax']))) {
+ $errors["conditiongradegroup[{$i}]"] = get_string('gradesmustbenumeric', 'condition');
+ continue;
+ }
+ if ($gradedata['conditiongrademin'] !== '' && $gradedata['conditiongrademax'] !== '' &&
+ unformat_float($gradedata['conditiongrademax']) <= unformat_float($gradedata['conditiongrademin'])) {
+ $errors["conditiongradegroup[{$i}]"] = get_string('badgradelimits', 'condition');
+ continue;
+ }
+ if ($gradedata['conditiongrademin'] === '' && $gradedata['conditiongrademax'] === '' &&
+ $gradedata['conditiongradeitemid']) {
+ $errors["conditiongradegroup[{$i}]"] = get_string('gradeitembutnolimits', 'condition');
+ continue;
+ }
+ if (($gradedata['conditiongrademin'] !== '' || $gradedata['conditiongrademax'] !== '') &&
+ !$gradedata['conditiongradeitemid']) {
+ $errors["conditiongradegroup[{$i}]"] = get_string('gradelimitsbutnoitem', 'condition');
+ continue;
+ }
+ }
+ }
+