Это действительно старый урок ( от 6 лет назад !!! ).Вместо этого я бы рекомендовал прочитать это руководство: http://guides.rubyonrails.org/routing.html
Предполагая, что вы работаете с Rails 3, вам просто нужно поместить это в ваш файл routes.rb
:
resources :books
Это будетвыставить маршруты для вашего BooksController
, чтобы вы могли получить доступ к:
HTTP Verb Path action used for
-----------------------------------------------------------------------
GET /books index display a list of all books
GET /books/new new return an HTML form for creating a new book
POST /books create create a new book
GET /books/:id show display a specific book
GET /books/:id/edit edit return an HTML form for editing a book
PUT /books/:id update update a specific book
DELETE /books/:id destroy delete a specific book
Таким образом, в вашем BooksController
вы бы получили:
class BooksController < ApplicationController
# GET /books
# GET /books.xml
def index
@books = Book.all
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => @books }
end
end
# GET /books/1
# GET /books/1.xml
def show
@book = Book.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => @book }
end
end
# GET /books/new
# GET /books/new.xml
def new
@book = Book.new
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @book }
end
end
# GET /books/1/edit
def edit
@book = Book.find(params[:id])
end
# POST /books
# POST /books.xml
def create
@book = Book.new(params[:book])
respond_to do |format|
if @book.save
format.html { redirect_to(@book, :notice => 'Book was successfully created.') }
format.xml { render :xml => @book, :status => :created, :location => @book }
else
format.html { render :action => "new" }
format.xml { render :xml => @book.errors, :status => :unprocessable_entity }
end
end
end
# PUT /books/1
# PUT /books/1.xml
def update
@book = Book.find(params[:id])
respond_to do |format|
if @book.update_attributes(params[:book])
format.html { redirect_to(@book, :notice => 'Book was successfully updated.') }
format.xml { head :ok }
else
format.html { render :action => "edit" }
format.xml { render :xml => @book.errors, :status => :unprocessable_entity }
end
end
end
# DELETE /books/1
# DELETE /books/1.xml
def destroy
@book = Book.find(params[:id])
@book.destroy
respond_to do |format|
format.html { redirect_to(books_url) }
format.xml { head :ok }
end
end
end