将孩子添加到父母的Rails路线

Question

Been working in another language for a few months and trying to get back into Rails.

If I have a model House , and a model Door , so that Door belongs_to House and House has_many Doors .

If I want to add a door to the house , do I use the route:

add_door_path

or is it

add_door_path(@house)

And if so how do I embed the house_id in to it? Or do I need to create a new route for that? Is it part of the standard resources or is this entirely custom?

Answer 1

if you have

# routes.rb
resources :house do
  resources :doors
end

then you would have house_doors_path(@house)

That is because in your routes you have specified that doors is nested inside the house. You would need the parameter inside because the path requires a house id.

To check for the routes, go here http://localhost:3000/rails/info/routes .

If on the other hand, if you have

# routes.rb
post '/door/' => 'doors#create', as: :add_door

the new door would not know which house it belongs to. so you can add post '/house/:id/door ... which you also need a parameter of house so your syntax would be add_door_path(@house)

I hope that answers your question.