How to Create a Dynamic ModelForm in Django Admin to Display Dynamic Columns

README.md

class OrganizationMaterialVariantPriceForm(ModelForm):
    def __init_subclass__(cls, **kwargs):
        if cls.__name__ == OrganizationMaterialVariantPriceForm.__name__:
            for color in Color.objects.all():
                field_name = f'color_{color.slug}'
                cls.declared_fields[field_name] = IntegerField(
                    label=color.name,
                    required=False,
                    widget=UnfoldAdminIntegerFieldWidget()
                )

    class Meta:
        model = OrganizationMaterialVariantPrice
        fields = []


class OrganizationMaterialVariantPriceInline(TabularInline):
    model = OrganizationMaterialVariantPrice
    extra = 0
    form = OrganizationMaterialVariantPriceForm
    fields = ['material']

    def get_fields(self, request, obj=None):
        fields = super().get_fields(request, obj) + [
            f'color_{color.slug}' for color in Color.objects.all()
        ]
        return fields