Coming from the Rails docs, one can simply do this:
resources :videos, param: :identifier
But, what if I have nested resources? Here are the routes:
resources :videos
resources :images
end
The above generate routes like:
video_images GET /videos/:video_id/images(.:format) images#index
How can I override :video_id from the route? I can't seem to be able to use param in this case.
If you want :identifier instead of :video_id you will have to code the routes manually. Which is a pain, so you should really consider why you want non-standard param values in your application.
get 'videos/:identifier/images', to: 'images#index', as: 'video_images'
Note that you'll need to do this for all CRUD routes...
get 'videos/:identifier/images/:id', :to => "videos#show", :as => "video_image"
get 'videos/:identifier/images/new', :to => "videos#new", :as => "new_video_image"
post 'videos/:identifier/images', :to => "images#create"
get 'videos/:identifier/images/:id/edit', :to => "images#edit", :as => "ed it_video_image"
put 'videos/:identifier/images/:id', :to => "images#update"
delete 'videos/:identifier/images/:id', :to => "images#destroy"
I will try to enhance an unaccepted answer in linked question: https://stackoverflow.com/a/29138733/2405850
try to use nesting with member - it will disable default appending for parent resource id.
However that will make problems with things that probably we want to preserve like names of helpers. One way to fix this - using as (see example below).
Having similar problem I, moreover, still wanted default id for other urls (for example, default videos CRUD or where video is the only possible parent). So I finally I came up with this:
resources :videos do
resources :snapshots
end
resources :videos, param: :imageable_id, only: [] do
member do
resources :images, as: 'video_images'
end
end
resources :users, param: :imageable_id, only: [] do
member do
resources :images, as: 'user_images'
end
end
The code above will generate the following routes:
video_snapshots GET /videos/:video_id/snapshots(.:format) snapshots#index
POST /videos/:video_id/snapshots(.:format) snapshots#create
new_video_snapshot GET /videos/:video_id/snapshots/new(.:format) snapshots#new
edit_video_snapshot GET /videos/:video_id/snapshots/:id/edit(.:format) snapshots#edit
video_snapshot GET /videos/:video_id/snapshots/:id(.:format) snapshots#show
PATCH /videos/:video_id/snapshots/:id(.:format) snapshots#update
PUT /videos/:video_id/snapshots/:id(.:format) snapshots#update
DELETE /videos/:video_id/snapshots/:id(.:format) snapshots#destroy
videos GET /videos(.:format) videos#index
POST /videos(.:format) videos#create
new_video GET /videos/new(.:format) videos#new
edit_video GET /videos/:id/edit(.:format) videos#edit
video GET /videos/:id(.:format) videos#show
PATCH /videos/:id(.:format) videos#update
PUT /videos/:id(.:format) videos#update
DELETE /videos/:id(.:format) videos#destroy
video_images GET /videos/:imageable_id/images(.:format) images#index
POST /videos/:imageable_id/images(.:format) images#create
new_video_image GET /videos/:imageable_id/images/new(.:format) images#new
edit_video_image GET /videos/:imageable_id/images/:id/edit(.:format) images#edit
video_image GET /videos/:imageable_id/images/:id(.:format) images#show
PATCH /videos/:imageable_id/images/:id(.:format) images#update
PUT /videos/:imageable_id/images/:id(.:format) images#update
DELETE /videos/:imageable_id/images/:id(.:format) images#destroy
user_images GET /users/:imageable_id/images(.:format) images#index
POST /users/:imageable_id/images(.:format) images#create
new_user_image GET /users/:imageable_id/images/new(.:format) images#new
edit_user_image GET /users/:imageable_id/images/:id/edit(.:format) images#edit
user_image GET /users/:imageable_id/images/:id(.:format) images#show
PATCH /users/:imageable_id/images/:id(.:format) images#update
PUT /users/:imageable_id/images/:id(.:format) images#update
DELETE /users/:imageable_id/images/:id(.:format) images#destroy
so for every other imageable class you will have to add another ugly construction like above but it should at least preserve other things and act as expected.
