1json.array! @photos do |photo|
 2  json.cache! ['v1', photo] do
 3    json.id photo.id
 4    json.cake_id photo.imageable_id
 5    json.content_type photo.content_type
 6    json.original_filename photo.original_filename
 7    json.thumb_url photo.url_for(:thumb)
 8    json.large_url photo.url_for(:large)
 9    json.original_url photo.url_for(:original)
10    json.created_at photo.created_at
11    json.updated_at photo.updated_at
12  end
13end