Create model for users with email and password

vote.rb

@@ -15,6 +15,9 @@ class Candidate < ActiveRecord::Base
   belongs_to :vote
 end
 
+class User < ActiveRecord::Base
+end
+
 def hash_password(password)
   BCrypt::Password.create(password).to_s
 end
@@ -23,13 +26,6 @@ def verify_password(password, hash)
   BCrypt::Password.new(hash) == password
 end
 
-User = Struct.new(:id, :email, :password_hash)
-USERS = [
-  User.new(1, 'P1', hash_password('P1')),
-  User.new(2, 'P2', hash_password('P2')),
-  User.new(3, 'P3', hash_password('P3')),
-]
-
 enable :sessions
 
 get '/' do
@@ -38,13 +34,23 @@ get '/' do
   erb :home
 end
 
+get '/signup' do
+  erb :signup
+end
+
+post '/signup' do
+  @user = User.create(email: params[:email],
+                      password: hash_password(params[:password]))
+  redirect '/'
+end
+
 get '/login' do
   erb :login
 end
 
 post '/login' do
-  user = USERS.find { |u| u.email == params[:email] }
-  if user && verify_password(params[:password], user.password_hash)
+  user = User.find_by(email: params[:email])
+  if user && verify_password(params[:password], user.password)
     session.clear
     session[:user_id] = user.id
     redirect '/'
@@ -64,6 +70,7 @@ get '/votes/new' do
 end
 
 get '/votes/:id' do
+  redirect '/login' unless current_user
   @vote = Vote.find(params[:id])
   erb :votes_show
 end
@@ -84,10 +91,23 @@ post '/votes/:id/candidates' do
   redirect '/votes/' + @vote.secure_id
 end
 
+post '/votes/:id/ratings' do
+  redirect '/login' unless current_user
+  vote = Vote.find(params[:id])
+  vote.candidates.each do |candidate|
+    rating = Rating.find_by(user: current_user)
+    rating = Rating.find_by(candidate: candidate)
+    rating = Rating.find_or_initialize_by(user: current_user, candidate: candidate)
+    rating.value = params[candidate.id.to_s]
+    rating.save
+  end
+  redirect '/votes/' + vote.secure_id
+end
+
 helpers do
   def current_user
     if session[:user_id]
-       USERS.find { |u| u.id == session[:user_id] }
+       User.find(session[:user_id])
     else
       nil
     end