robski@falcon:/var/www/photos$ ruby script/console
Loading development environment (Rails 2.3.8)
>> cat=Photo.find_by_filename "cat.jpg"
=> #<Photo id: 1, filename: "cat.jpg">
>> cat.filename="Cat.jpg"
=> "Cat.jpg"
>> cat.update
NoMethodError: Attempt to call private method
	from /var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/attribute_methods.rb:240:in `method_missing'
	from (irb):3
>>