graphene/graphene-django/graphene_django/compat.py

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from django.db import models
class MissingType(object):
pass
try:
UUIDField = models.UUIDField
except AttributeError:
# Improved compatibility for Django 1.6
UUIDField = MissingType
try:
from django.db.models.related import RelatedObject
except:
# Improved compatibility for Django 1.6
RelatedObject = MissingType
try:
# Postgres fields are only available in Django 1.8+
from django.contrib.postgres.fields import ArrayField, HStoreField, JSONField, RangeField
except ImportError:
ArrayField, HStoreField, JSONField, RangeField = (MissingType, ) * 4