Question

My goal is to be able to use get_FOO_display(), and so as far as I understand I will have to have choices specified in the model field. At the same time I am wanting to render the form using a ModelForm as a RadioButton.

The problem I am having is that the default value of “——” that would be used in a dropdown select is showing up as one of my RadioButton options.

models.py

class Medication(models.Model):
    YESNO_CHOICES = [(0, 'No'), (1, 'Yes')]
    Allergies = models.BigIntegerField(verbose_name='Allergies:', choices=YESNO_CHOICES)

forms.py

I have tried just specifying a RadioButton widget in the ModelForm.

class mfMedication(ModelForm):
    class Meta:
        model = Medication
        widgets = {
        'Allergies': RadioSelect(),
        }

and also specifying the RadioButton with the CHOICES.

class mfMedication(ModelForm):
    class Meta:
        model = Medication
        widgets = {
        'Allergies': RadioSelect(choices=Medication.YESNO_CHOICES),
        }

In both cases I get three radiobuttons:

"": -------
0 : No
1 : Yes

The only way I do not get the “——-” is to remove choices=YESNO_CHOICES from my model field, but this stops get_FOO_display() from working.

Any approach that you have used to get this working would be greatly appreciated.

Thanks. JD.

Answer 1

If you want to prevent displaying of ------- choice, you should specify empty_label=None in your form field.

Also, I recomend you to use BooleanField for model and TypedChoiceField for form:

models.py:

class Medication(models.Model):
    Allergies = models.BooleanField('Allergies:')

forms.py:

class MedicationForm(forms.ModelForm):
    YESNO_CHOICES = ((0, 'No'), (1, 'Yes'))
    Allergies = forms.TypedChoiceField(
                     choices=YESNO_CHOICES, widget=forms.RadioSelect, coerce=int
                )