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-rw-r--r--activerecord/lib/active_record/session_store.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/session_store.rb b/activerecord/lib/active_record/session_store.rb
index 7e77aefb21..98e21db908 100644
--- a/activerecord/lib/active_record/session_store.rb
+++ b/activerecord/lib/active_record/session_store.rb
@@ -83,6 +83,8 @@ module ActiveRecord
cattr_accessor :data_column_name
self.data_column_name = 'data'
+ attr_accessible :session_id, :data, :marshaled_data
+
before_save :marshal_data!
before_save :raise_on_session_data_overflow!