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)\ntime = original_time\nunless time.acts_like?(:time)\ntime = time.is_a?(String) ? Time.zone.parse(time) : time.to_time rescue time\nend\nzoned_time = time && time.in_time_zone rescue nil\nrounded_time = round_usec(zoned_time)\nrounded_value = round_usec(read_attribute(\"\#{attr_name}\"))\nif (rounded_value != rounded_time) || (!rounded_value && original_time)\nwrite_attribute(\"\#{attr_name}\", original_time)\n\#{attr_name}_will_change!\n@attributes_cache[\"\#{attr_name}\"] = zoned_time\nend\nend\n", __LINE__ + 1
generated_attribute_methods.module_eval(method_body, __FILE__, line)
else
super
end
end