Question

I have the following rails 3 nested resource:

resources :books do
  resources :authors
end

My authors table has ID | name | book_id

Given I’m at the URL /books/312/authors/new

How do I structure the controller, so that I create a new Author assigned to a book

@author = Book.author.create.(params[:author])

What should the Authors Form new look like?

<%=form_for [Book, Author.new] do |f| %>

thanks

Answer 1

In the create action of your author controller:

def create
  @book = Book.find(params[:book_id])
  @author = @book.authors.build(params[:author])

  #rest of your code...

Then in your new author form:

<%= form_for [:book, @author] do |f| %>

Hope that helps!