rest_framework doesn't have a serializers.ReadOnlyField
diff --git a/planetstack/core/xoslib/methods/sliceplus.py b/planetstack/core/xoslib/methods/sliceplus.py
index b302aec..7e9ae89 100644
--- a/planetstack/core/xoslib/methods/sliceplus.py
+++ b/planetstack/core/xoslib/methods/sliceplus.py
@@ -8,8 +8,15 @@
from core.xoslib.objects.sliceplus import SlicePlus
from plus import PlusSerializerMixin
+if hasattr(serializers, "ReadOnlyField"):
+ # rest_framework 3.x
+ IdField = serializers.ReadOnlyField
+else:
+ # rest_framework 2.x
+ IdField = serializers.Field
+
class SlicePlusIdSerializer(serializers.ModelSerializer, PlusSerializerMixin):
- id = serializers.ReadOnlyField()
+ id = IdField()
sliceInfo = serializers.SerializerMethodField("getSliceInfo")
humanReadableName = serializers.SerializerMethodField("getHumanReadableName")