Django Form.is_valid Keeps Throwing Keyerror

I have this code in my view: def add_intern(request): if request.method == 'POST': form = InternApplicationForm(request.POST) if form.is_valid(): fo

Solution 1:

Okay, so I just nailed it down.

I followed this advice to set my custom error message for validation. So I had this code:

def__init__(self, *args, **kwargs):
    super(InternApplicationForm, self).__init__(*args, **kwargs)
    for field inself.fields.values():
        field.error_messages = {'required':'*'}

that set the same required field validation message for all fields.

When the error was different (invalid for non-integer), Django looked in the dictionary I supplied—and guess what, KeyError. Because there is no message for invalid there (and that's my fault).

So the fix is

field.error_messages = {'required': '*', 'invalid': "That's not a number, sir."}

(and possibly other error message keys)