[FIXED] The value of 'form' must inherit from 'BaseModelForm'

Issue

I am trying to add dynamic choice field to adimin form, but I get an error:

The value of 'form' must inherit from 'BaseModelForm'.

What am I doing wrong?

(part of admin.py)

class ReservationForm(forms.Form):

    class Meta:
        model = Reservation

    def __init__(self,*args, **kwargs):
        super(ReservationForm, self).__init__(*args, **kwargs)

        if not self.request.user.is_superuser:
            self.fields['status'] = forms.ChoiceField(STATUS_CHOICES = ( (PENDING,'Pending'),(APPROVED, 'Approved'), (CANCELED, 'Canceled') ))

# Reservation

class ReservationAdmin(admin.ModelAdmin):
    form = ReservationForm

Solution

Your ReservationForm does not extend BaseModelForm or any of its subclasses. Change it to:

class ReservationForm(forms.ModelForm):

Answered By - Selcuk