lib/yao/resources/base.rb in yao-0.20.0 vs lib/yao/resources/base.rb in yao-0.21.0

@@ -66,10 +66,11 @@
     # @return [Symbol]
     def self.map_attributes_to_time(*names)
       names.map(&:to_s).each do |name|
         add_instantiation_name_list(name)
         define_method(name) do
-          Time.parse(self[name])
+          time = self[name]
+          Time.parse(time) if time
         end
       end
     end
 
     # @param data_via_json [Hash]