def define_method_attribute=(attr_name)
if create_time_zone_conversion_attribute?(attr_name, columns_hash[attr_name])
method_body, line = "def \#{attr_name}=(original_time)\noriginal_time = nil if original_time.blank?\ntime = original_time\nunless time.acts_like?(:time)\ntime = time.is_a?(String) ? Time.zone.parse(time) : time.to_time rescue time\nend\ntime = time.in_time_zone rescue nil if time\nprevious_time = attribute_changed?(\"\#{attr_name}\") ? changed_attributes[\"\#{attr_name}\"] : read_attribute(:\#{attr_name})\nwrite_attribute(:\#{attr_name}, original_time)\n\#{attr_name}_will_change! if previous_time != time\n@attributes_cache[\"\#{attr_name}\"] = time\nend\n", __LINE__ + 1
generated_attribute_methods.module_eval(method_body, __FILE__, line)
else
super
end
end