Model definition using couchDB

Hello

I am writing a RoR application which connects to a noSQL database (couchDB).

In the database, I have an author document. The author has a first_name and a last_name. It also have inside another document: a book. The book has a title and a year of publication.

Example: {   author {     "first_name" : "abc",     "last_name" : "def"     "book" {       "title" : "the jungle book",       "year" : "1922"     }   } }

I am trying to define the Author model file so I can access Author's information as so related book information:

class Author < CouchRest::Model::Base

  property :first_name   property :last_name   property :book

  ... end

However, when in the HTML file I try to access to the book author's information, I get errors.

HTML example: <td><%=h author.first_name %> <%=h author.last_name %> <%=h author.book.title %></td>

The error I get is: undefined method `title' for :book:Symbol

It's the first time I am developing a RoR application using a CouchDB application, so I am pretty sure that the problem comes from the way I am defining the Author's model file.

Can anyone help me about that?

Thank you