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  1. class ApplicationController < ActionController::Base
  2.   protected
  3.     def authenticate
  4.       unless session["User"]
  5.         redirect_to :controller => "login"
  6.         return false
  7.       end
  8.  end
  9.  end
  10.  
  11.  
  12.  
  13. class LoginController < ActionController::Base
  14.  
  15.   #before_filter :authorize, :except => :index
  16. #before_filter :authorize, :except => :index
  17. before_filter :authorize, :except => :index
  18.   def index
  19.    
  20.   end
  21.  
  22.   def authorize
  23.     session[:user_id] = nil
  24.     user = User.authenticate(@params["name"], @params["password"])
  25.     if user
  26.            session[:user_id] = user.id
  27.    
  28.             redirect_to :controller => "Questions"
  29.    
  30.     else
  31.       flash[:error] = 'Invalid user name and/or password.'
  32.       redirect_to :action => "index"
  33.     end
  34.   end
  35.  
  36.   def new
  37.    
  38.   end
  39.  
  40.   def register
  41.     if (@params["name"]!='' && @params["password"]!='')
  42.       if session[:user_id] =  !User.checkAvailability(@params["name"])
  43.        
  44.         @user = User.new
  45.         @user.user_name = @params["name"]
  46.         @user.password = @params["password"]
  47.         @user.admin_role= 0
  48.         if @user.save
  49.           session[:user_id] = user.id
  50.             redirect_to :controller => "Questions"
  51.         else
  52.             flash[:error] = 'Problem creating user, please try again'
  53.             redirect_to :action => "new"
  54.         end
  55.       else
  56.         flash[:error] = 'User name already exists.'
  57.         redirect_to :action => "new"
  58.       end
  59.     else
  60.         flash[:error] = 'Please make sure you have entered all parameters.'
  61.         redirect_to :action => "new"
  62.     end
  63.   end
  64.  
  65.  
  66.   def logout
  67.     reset_session
  68.     flash["alert"] = "Logged out"
  69.     redirect_to :action => "index"
  70.   end
  71. end
  72.  
  73.  
  74.  
  75. class QuestionsController < ActionController::Base
  76.  
  77.   def index
  78.     # show the secret stuff
  79.   end
  80.  
  81.   def back
  82.     redirect_to :action => "index"
  83.   end
  84.   def edit
  85.       u = User.find_by_id(session[:user_id])
  86.      
  87.      if u.admin_role
  88.         flash[:error] = " 'The question ID does not exist. '"+ @current_user.author
  89.         redirect_to :action => "index"
  90.      else
  91.         flash[:error] = " 'It works?????. '"+ @current_user.author
  92.         redirect_to :action => "index"
  93.      end
  94.      
  95.      @question = Question.find(@params["id"])
  96.    
  97.      rescue Exception => exc
  98.         flash[:error] = 'The question ID does not exist.'
  99.         redirect_to :action => "index"          
  100.   end
  101.  
  102.  
  103.   def find
  104.      redirect_to :action => "index"
  105.   end
  106.  
  107.   def make
  108.    
  109.   end
  110.  
  111.   def update
  112.     @question = Question.find(@params["id"])
  113.     @question.question = @params["question"]
  114.     @question.answer = @params["answer"]
  115.    
  116.     if @question.save
  117.        flash[:error] = 'Update Successful'
  118.        redirect_to :action => "index"
  119.     else
  120.        flash[:error] = 'Problem updating question, please try again'
  121.        redirect_to :action => "index"
  122.     end
  123.    
  124.     rescue Exception => exc
  125.         flash[:error] = 'The question ID does not exist.'
  126.         redirect_to :action => "index"
  127.   end
  128.  
  129. end
  130.  
  131.  
  132.  
  133. class User < ActiveRecord::Base
  134.   def self.authenticate(name, password)
  135.     find(:first,
  136.       :conditions => [ "user_name = '%s' AND password = '%s'", name, password ]
  137.     )
  138.   end
  139.  
  140.    def self.checkAvailability(name)
  141.     find(:first,
  142.       :conditions => [ "user_name = '%s'", name ]
  143.     )
  144.   end
  145. end
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