Rails 3.0

After doing

rake db:sessions:create

then adding the line of code in the session_store.rb,

CouponManager::Application.config.session_store :active_record_store

What else needs to be done before I'm capable of using sessions like

session[:t开发者_如何学JAVAtl_qty] = 5

That is all you should need to do. You should be able to use that session hash now and it should be persistent. Check out the following code.

Controller

  before_filter :set_user
  def set_user
    if session[:user_id]
      @user = User.find(session[:user_id])
    end
  end

  def login
    if user = User.find(params)
        session[:user_id] = user.id
    end
  end

View

<div>Hello, <%= @user.email %>!</div>

You can always take a look in the sessions table to make sure that your data is getting there... it should be in the data column (base64 encoded). If you're using sqlite3, you can do something like this:

: sqlite3 db/development.sqlite3     
sqlite> select data from sessions limit 1;
... base64 data ...

You can decode the base64 data to see what is making it there. Hope that helps.