DjangoFormMutation does not generate enum from forms.ChoiceField

• What is the current behavior?

GEEKS_CHOICES =(("1", "One"), ("2", "Two"))

class UpdateUserStateInTradeForm(forms.Form):
    state = forms.ChoiceField(choices=GEEKS_CHOICES)

# mutation
class UpdateUserStateInTradeMutation(DjangoFormMutation):
  class Meta:
    form_class = UpdateUserStateInTradeForm


# generated schema

state: String!

• What is the expected behavior?

state is enumeration

• Please tell us about your environment:

  • Version: 2.13.0, Django 3.0.1
  • Platform: Linux

[marcosalcazar]

About this issue, can you guys let us know what’s the proper way to have Enums for a ChoiceField (or CharField with choices) for a DjangoFormMutation? It seems the bug is still there.

[iorlandini]

@artofhuman that’s a good point. In that case, check the following branch comparison:

https://github.com/graphql-python/graphene-django/compare/main...iorlandini:feature/form-choices-to-enum-conversion

I think it does the job! Just do not forget to use a Django ModelForm instead of a Form because it needs a reference to the model:

def test_form_field_with_choices_convert_enum():
    class TestModel(models.Model):
        field = models.CharField(
            choices=(("choice-0", "Choice 0"), ("choice-1", "Choice 1"))
        )

    class TestType(DjangoObjectType):
        class Meta:
            model = TestModel

    class TestForm(forms.ModelForm):
        class Meta:
            model = TestModel
            fields = ["field"]

    class TestMutation(DjangoFormMutation):
        class Meta:
            form_class = TestForm

    schema = graphene.Schema(mutation=TestMutation)

    _type = schema.get_type("TestModelField")
    assert _type.name == "TestModelField"

    assert _type.values[0].name == "CHOICE_0"
    assert _type.values[0].value == "choice-0"

    assert _type.values[1].name == "CHOICE_1"
    assert _type.values[1].value == "choice-1"