Django, get all required fields?

Question

How can I get all the fields that is required for a model to be created?
(same as django migrations check before running migrations?)

Answer 1

You can use the get_fields() method on the model Meta class:

fields = MyModel._meta.get_fields()
required_fields = []

# Required means `blank` is False
for f in fields:
    # Note - if the field doesn't have a `blank` attribute it is probably
    # a ManyToOne relation (reverse foreign key), which you probably want to ignore.
    if getattr(f, 'blank', False):
        required_fields.append(f)