--- /dev/null
+/**
+ * Implements hook_field_presave().
+ */
+function {{ machine_name }}_field_presave($entity_type, $entity, $field, $instance, $langcode, &$items) {
+ if ($field['type'] == 'number_decimal') {
+ // Let PHP round the value to ensure consistent behavior across storage
+ // backends.
+ foreach ($items as $delta => $item) {
+ if (isset($item['value'])) {
+ $items[$delta]['value'] = round($item['value'], $field['settings']['scale']);
+ }
+ }
+ }
+}