Custom manipulator, default form?

[Rob Slotboom]

For one of my models I need to do some extra validation.
Because of what I want it isn't possible to just rely on a validator, I
need a manipulator to get a request object.

The manipulator only has to add an extra validator to one field. This
validator validates using the database. No custom form is needed. The
manipulator will be used within Django's admin.

I searched and red and searched and red again but I couldn't find an
answer on this one:
How to add a custom manipulator, extending the default one, to a model
using the default form?

--
Robert Slotboom

[Aidas Bendoraitis]

I would try just to extend the custom manipulator as you would do with
custom manager:

class CustomAddManipulator(models.manipulators.AutomaticAddManipulator):
# ... override the manipulator ...

class CustomChangeManipulator(models.manipulators.AutomaticChangeManipulator):
# ... override the manipulator ...

class MyModel(models.Model):
AddManipulator = CustomAddManipulator
ChangeManipulator = CustomChangeManipulator

Good luck!
Aidas Bendoraitis aka Archatas