Add EppSession for custom session management

app/models/epp_session.rb

@@ -0,0 +1,31 @@
+class EppSession < ActiveRecord::Base
+  before_save :marshal_data!
+
+  def data
+    @data ||= self.class.unmarshal(read_attribute(:data)) || {}
+  end
+
+  def [](key)
+    data[key.to_sym]
+  end
+
+  def []=(key, value)
+    data[key.to_sym] = value
+    save!
+  end
+
+  def marshal_data!
+    self.data = self.class.marshal(data)
+  end
+
+  class << self
+     def marshal(data)
+        ::Base64.encode64(Marshal.dump(data)) if data
+      end
+
+      def unmarshal(data)
+        return data unless data.is_a? String
+        Marshal.load(::Base64.decode64(data)) if data
+      end
+  end
+end