src/Charcoal/Object/ObjectRoute.php
protected function preUpdate(array $properties = null)
    {
        $this->setCreationDate('now');
        $this->setLastModificationDate('now');

        return parent::preUpdate($properties);
    }
protected function preUpdate(array $properties = null)
    {
        $this->setCreationDate('now');
        $this->setLastModificationDate('now');

        return parent::preUpdate($properties);
    }
Event called before _updating_ the object.

@see    Charcoal\Source\StorableTrait::preUpdate() For the "update" Event.
@param  array $properties Optional. The list of properties to update.
@return boolean