function hook_field_presave

Define custom presave behavior for this module's field types.

Make changes or additions to field values by altering the $items parameter by reference. There is no return value.

Parameters

$entity_type: The type of $entity.

$entity: The entity for the operation.

$field: The field structure for the operation.

$instance: The instance structure for $field on $entity's bundle.

$langcode: The language associated with $items.

$items: $entity->{$field['field_name']}[$langcode], or an empty array if unset.

Related topics

File

modules/field/field.api.php, line 462

Code

function hook_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']);
            }
        }
    }
}