Fixed nested automatic choices coerce for simple types (#50)

Author: rozza

flask_mongoengine/wtf/orm.py

@@ -155,7 +155,7 @@ def conv_List(self, model, field, kwargs):
             return ModelSelectMultipleField(model=field.field.document_type, **kwargs)
         if field.field.choices:
             kwargs['multiple'] = True
-            return self.convert(model, field.field, **kwargs)
+            return self.convert(model, field.field, kwargs)
         field_args = kwargs.pop("field_args", {})
         unbound_field = self.convert(model, field.field, field_args)
         unacceptable = {

tests/test_forms.py

@@ -61,6 +61,22 @@ class MyChoices(db.Document):
             form.save()
             self.assertEqual(MyChoices.objects.first().pill, 1)
 
+    def test_list_choices_coerce(self):
+
+        with self.app.test_request_context('/'):
+            db = self.db
+
+            CHOICES = ((1, "blue"), (2, "red"))
+
+            class MyChoices(db.Document):
+                pill = db.ListField(db.IntField(choices=CHOICES))
+
+            MyChoicesForm = model_form(MyChoices)
+            form = MyChoicesForm(MultiDict({"pill": "1"}))
+            self.assertTrue(form.validate())
+            form.save()
+            self.assertEqual(MyChoices.objects.first().pill[0], 1)
+
     def test_emailfield(self):
 
         with self.app.test_request_context('/'):