akaihola wrote:
They are used to prefill form elements in the Admin (don't know about custom forms though, never tried). So it's just a hint for the user.So, if I'm not mistaken, the default values for a model's fields are not used when saving an object,
Not necessarily. It's more convinient to override _pre_save() method in your model and fill default values there.and I must create a custom manipulator to do that.