1json.cache! ['v1', photo] do
 2  json.id photo.id
 3  json.cake_id photo.imageable_id
 4  json.content_type photo.content_type
 5  json.original_filename photo.original_filename
 6  json.thumb_url photo.url_for(:thumb)
 7  json.large_url photo.url_for(:large)
 8  json.original_url photo.url_for(:original)
 9  json.created_at photo.created_at
10  json.updated_at photo.updated_at
11end