Rails 3, how add a associated record after creating a primary record (Books, Auto Add BookCharacter)

Question

Rails newbie... trying to understand the right way to do things...

In my app users can create a Book ( I have that working)

What I want to happen is when a user

Answer 1

I prefer something like (if User has_many Book):

def create
 @book = current_user.books.new(params[:book])
 respond_to do |format|
  if @book.save
  …