Support for `read_only_fields` on `ModelSerializer` classes

1 files changed, 7 insertions, 0 deletions

diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py
index 95145d58..329b38f2 100644
--- a/rest_framework/serializers.py
+++ b/rest_framework/serializers.py
@@ -321,6 +321,7 @@ class ModelSerializerOptions(SerializerOptions):
     def __init__(self, meta):
         super(ModelSerializerOptions, self).__init__(meta)
         self.model = getattr(meta, 'model', None)
+        self.read_only_fields = getattr(meta, 'read_only_fields', ())
 
 
 class ModelSerializer(Serializer):
@@ -369,6 +370,12 @@ class ModelSerializer(Serializer):
                 field.initialize(parent=self, field_name=model_field.name)
                 ret[model_field.name] = field
 
+        for field_name in self.opts.read_only_fields:
+            assert field_name in ret, \
+                "read_only_fields on '%s' included invalid item '%s'" % \
+                (self.__class__.__name__, field_name)
+            ret[field_name].read_only = True
+
         return ret
 
     def get_pk_field(self, model_field):