Question

I’m trying to build a game where you guess numbers.
The problem is if you make a mistake it redirects you to a leaderboard(mvc) form where you enter your name plus it`s pre populated with sessions data from a different controller(game) and submits both into the DB.

@round & @points are the two variables I want to access and store as score and level.

class ApplicationController < ActionController::Base


  before_filter :set_current_account

  def set_current_account
    #  set @current_account from session data here
    Game.current = @round
  end   


  protect_from_forgery

end

–

class Leaderboard < ActiveRecord::Base
    cattr_accessor :current
end

# == Schema Information
#
# Table name: leaderboards
#
#  id         :integer         not null, primary key
#  name       :string(255)
#  score      :string(255)
#  level      :string(255)
#  created_at :datetime
#  updated_at :datetime
#

–

class GameController < ApplicationController

  def index
    @games = Game.all
    respond_to do |format|
      format.html 
    end
  end

  def start_game
    session[:round] ||= 1
    session[:points] ||= 0
    @round = session[:round]
    @points = session[:points] 
  end


  def generate_round
    numbers = Array.new(6){rand(9)}
    @addition = []
    @display = numbers
    numbers.inject do |s, i|
        @addition << s + i
        @addition.last
    end
  end

  def next_round
    session[:round] += 1
    session[:points] += 1200
    @round = session[:round]
    @points = session[:points]
  end

  def destroy_sessions
    session[:round] = nil
    session[:points] = nil
    session[:addition] = nil
    @round = session[:round]
    @points = session[:points]
    @addition = session[:addition]
    start_game
  end

  def submit_name
    @game = Game.new(params[:game])

    respond_to do |format|
      if @game.save
        format.html { redirect_to(leaderboard_path, :notice => 'Score was added successfully.') }
      else
        format.html { render :action => "new" }
      end
    end
  end

  def game_over
    redirect_to :controller => 'leaderboards', :action => 'new' and return
  end

Answer 1

I haven’t read the whole thing, but if you just want to access those variables, you can just pass them as parameters.

1. Pass those values into game_over as params

2. Use this to redirect

redirect_to :controller => ‘leaderboards’, :action => ‘new’ and return, :round => params[:round], :points => params[:points]

Alternatively, you can just keep the session until a new game is started or score is recorded to the leaderboard.