Ruby on Rails 3: link_to create new nested resource? -

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i trying make link create new nested resource in rails 3 application, can't figure out. syntax link new nested resource

solution:

make sure have resources nested in routes file.

resources :books   resources :chapters end

then in view script can call this:

<%= link_to 'new chapter', new_book_chapter_path(@book) %>

the rails guide on routing quite helpful.

note: if message couldn't find book without id, problem isn't link, it's code in controller.

def new   @book = book.find(params[:book_id]) #instead of :id   @chapter = @book.chapter.new   respond_with(@chapter) end

make changes in routes as

map.resources :books |book|     book.resources :chapters end

and use this

link_to new_book_chapter_path(@book)

you can use link understand concept better nested routes


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