Fixed #34388 -- Allowed using choice enumeration types directly on model and form fields.

django/db/models/fields/__init__.py

@@ -14,6 +14,7 @@ from django.conf import settings
 from django.core import checks, exceptions, validators
 from django.db import connection, connections, router
 from django.db.models.constants import LOOKUP_SEP
+from django.db.models.enums import ChoicesMeta
 from django.db.models.query_utils import DeferredAttribute, RegisterLookupMixin
 from django.utils import timezone
 from django.utils.datastructures import DictWrapper
@@ -216,6 +217,8 @@ class Field(RegisterLookupMixin):
         self.unique_for_date = unique_for_date
         self.unique_for_month = unique_for_month
         self.unique_for_year = unique_for_year
+        if isinstance(choices, ChoicesMeta):
+            choices = choices.choices
         if isinstance(choices, collections.abc.Iterator):
             choices = list(choices)
         self.choices = choices

django/forms/fields.py

@@ -16,6 +16,7 @@ from urllib.parse import urlsplit, urlunsplit
 
 from django.core import validators
 from django.core.exceptions import ValidationError
+from django.db.models.enums import ChoicesMeta
 from django.forms.boundfield import BoundField
 from django.forms.utils import from_current_timezone, to_current_timezone
 from django.forms.widgets import (
@@ -857,6 +858,8 @@ class ChoiceField(Field):
 
     def __init__(self, *, choices=(), **kwargs):
         super().__init__(**kwargs)
+        if isinstance(choices, ChoicesMeta):
+            choices = choices.choices
         self.choices = choices
 
     def __deepcopy__(self, memo):