Hi, using django automatic admin interface I need to show a select-box with "True", "False" and "Unknown" values for a certain field of an object. NullBooleanField is the natural choice as type of that field, but I want to add a constraint and a default value in this way: - default value should be "Unknown" - "Unknown" value has not to be accepted as a valid value for that field by the admin interface
The idea is to force the user to explicitly choose among Yes and No without being able to skip that choice. Is there a better way to do it? As far as I understand if I don't specify "default=<something>" the default value is "Unknown" for NullBooleanField, as it is required. But is it possible to say it explicitly in some way? default="Unknown" of default=None don't work. About the second point (avoiding "Unknown" value as an admin interface constraint) I have no ideas. Hints? Thanks in advance, Emanuele
