1json.cake do
 2  json.partial! 'cake', cake: @cake
 3end
 4json.users [@cake.user] do |user|
 5  json.partial! user, user: user
 6end
 7json.photos @cake.photos do |photo|
 8  json.partial! photo, photo: photo
 9end
10json.categories [@cake.category] do |category|
11  json.partial! category, category: category
12end