upto 3.3

app/controllers/ratings_controller.rb

@@ -10,6 +10,8 @@ class RatingsController < ApplicationController
 
   def create
     Rating.create params.require(:rating).permit(:score, :beer_id)
+    session[:last_rating] = "#{rating.beer.name} #{rating.score} points"
+
     redirect_to ratings_path
   end
 

app/controllers/sessions_controller.rb

@@ -0,0 +1,15 @@
+class SessionsController < ApplicationController
+  def new
+  end
+
+  def create
+    user = User.find_by username: params[:username]
+    session[:user_id] = user.id if user
+    redirect_to user
+  end
+
+  def destroy
+    session[:user_id] = nil
+    redirect_to :root
+  end
+end

app/controllers/users_controller.rb

@@ -0,0 +1,70 @@
+class UsersController < ApplicationController
+  before_action :set_user, only: %i[ show edit update destroy ]
+
+  # GET /users or /users.json
+  def index
+    @users = User.all
+  end
+
+  # GET /users/1 or /users/1.json
+  def show
+  end
+
+  # GET /users/new
+  def new
+    @user = User.new
+  end
+
+  # GET /users/1/edit
+  def edit
+  end
+
+  # POST /users or /users.json
+  def create
+    @user = User.new(user_params)
+
+    respond_to do |format|
+      if @user.save
+        format.html { redirect_to user_url(@user), notice: "User was successfully created." }
+        format.json { render :show, status: :created, location: @user }
+      else
+        format.html { render :new, status: :unprocessable_entity }
+        format.json { render json: @user.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # PATCH/PUT /users/1 or /users/1.json
+  def update
+    respond_to do |format|
+      if @user.update(user_params)
+        format.html { redirect_to user_url(@user), notice: "User was successfully updated." }
+        format.json { render :show, status: :ok, location: @user }
+      else
+        format.html { render :edit, status: :unprocessable_entity }
+        format.json { render json: @user.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # DELETE /users/1 or /users/1.json
+  def destroy
+    @user.destroy
+
+    respond_to do |format|
+      format.html { redirect_to users_url, notice: "User was successfully destroyed." }
+      format.json { head :no_content }
+    end
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_user
+      @user = User.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def user_params
+      params.require(:user).permit(:username)
+    end
+end

app/helpers/users_helper.rb

@@ -0,0 +1,2 @@
+module UsersHelper
+end

app/models/user.rb

@@ -0,0 +1,2 @@
+class User < ApplicationRecord
+end

app/views/layouts/application.html.erb

@@ -12,5 +12,13 @@
 
   <body>
     <%= yield %>
+    <% if not session[:user_id].nil? %>
+      <p><%= User.find(session[:user_id]).username %> signed in</p>
+    <% end %>
+    <% if session[:last_rating].nil? %>
+      <p>no ratings given</p>
+    <% else %>
+      <p>previous rating: <%= session[:last_rating] %></p>
+    <% end %>
   </body>
 </html>

app/views/sessions/new.html.erb

@@ -0,0 +1,6 @@
+<h1>Sign in</h1>
+
+<%= form_with url: session_path, method: :post do |form| %>
+  <%= form.text_field :username %>
+  <%= form.submit "Log in" %>
+<% end %>

app/views/users/_form.html.erb

@@ -0,0 +1,22 @@
+<%= form_with(model: user) do |form| %>
+  <% if user.errors.any? %>
+    <div style="color: red">
+      <h2><%= pluralize(user.errors.count, "error") %> prohibited this user from being saved:</h2>
+
+      <ul>
+        <% user.errors.each do |error| %>
+          <li><%= error.full_message %></li>
+        <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div>
+    <%= form.label :username, style: "display: block" %>
+    <%= form.text_field :username %>
+  </div>
+
+  <div>
+    <%= form.submit %>
+  </div>
+<% end %>

app/views/users/_user.html.erb

@@ -0,0 +1,7 @@
+<div id="<%= dom_id user %>">
+  <p>
+    <strong>Username:</strong>
+    <%= user.username %>
+  </p>
+
+</div>

app/views/users/_user.json.jbuilder

@@ -0,0 +1,2 @@
+json.extract! user, :id, :username, :created_at, :updated_at
+json.url user_url(user, format: :json)

app/views/users/edit.html.erb

@@ -0,0 +1,10 @@
+<h1>Editing user</h1>
+
+<%= render "form", user: @user %>
+
+<br>
+
+<div>
+  <%= link_to "Show this user", @user %> |
+  <%= link_to "Back to users", users_path %>
+</div>

app/views/users/index.html.erb

@@ -0,0 +1,15 @@
+<p style="color: green"><%= notice %></p>
+
+<h1>Users</h1>
+
+<div id="users">
+  <% @users.each do |user| %>
+    <%= render user %>
+    <p>
+      <%= link_to "Show this user", user %>
+    </p>
+  <% end %>
+</div>
+
+<%= link_to "New user", new_user_path %>
+<%= link_to "List of breweries", breweries_path %>

app/views/users/index.json.jbuilder

@@ -0,0 +1 @@
+json.array! @users, partial: "users/user", as: :user

app/views/users/new.html.erb

@@ -0,0 +1,9 @@
+<h1>New user</h1>
+
+<%= render "form", user: @user %>
+
+<br>
+
+<div>
+  <%= link_to "Back to users", users_path %>
+</div>

app/views/users/show.html.erb

@@ -0,0 +1,10 @@
+<p style="color: green"><%= notice %></p>
+
+<%= render @user %>
+
+<div>
+  <%= link_to "Edit this user", edit_user_path(@user) %> |
+  <%= link_to "Back to users", users_path %>
+
+  <%= button_to "Destroy this user", @user, method: :delete %>
+</div>

app/views/users/show.json.jbuilder

@@ -0,0 +1 @@
+json.partial! "users/user", user: @user

config/routes.rb

@@ -1,4 +1,5 @@
 Rails.application.routes.draw do
+  resources :users
   resources :beers
   resources :breweries
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
@@ -6,5 +7,7 @@ Rails.application.routes.draw do
   # Defines the root path route ("/")
   # root "articles#index"
   get '/', to: 'breweries#index'
+  get 'signup', to: 'users#new'
   resources :ratings, only: [:index, :new, :create, :destroy]
+  resource :session, only: [:new, :create, :destroy]
 end

db/migrate/20230808143510_create_users.rb

@@ -0,0 +1,9 @@
+class CreateUsers < ActiveRecord::Migration[7.0]
+  def change
+    create_table :users do |t|
+      t.string :username
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2023_06_04_140719) do
+ActiveRecord::Schema[7.0].define(version: 2023_08_08_143510) do
   create_table "beers", force: :cascade do |t|
     t.string "name"
     t.string "style"
@@ -33,4 +33,10 @@ ActiveRecord::Schema[7.0].define(version: 2023_06_04_140719) do
     t.datetime "updated_at", null: false
   end
 
+  create_table "users", force: :cascade do |t|
+    t.string "username"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
 end

test/controllers/users_controller_test.rb

@@ -0,0 +1,48 @@
+require "test_helper"
+
+class UsersControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @user = users(:one)
+  end
+
+  test "should get index" do
+    get users_url
+    assert_response :success
+  end
+
+  test "should get new" do
+    get new_user_url
+    assert_response :success
+  end
+
+  test "should create user" do
+    assert_difference("User.count") do
+      post users_url, params: { user: { username: @user.username } }
+    end
+
+    assert_redirected_to user_url(User.last)
+  end
+
+  test "should show user" do
+    get user_url(@user)
+    assert_response :success
+  end
+
+  test "should get edit" do
+    get edit_user_url(@user)
+    assert_response :success
+  end
+
+  test "should update user" do
+    patch user_url(@user), params: { user: { username: @user.username } }
+    assert_redirected_to user_url(@user)
+  end
+
+  test "should destroy user" do
+    assert_difference("User.count", -1) do
+      delete user_url(@user)
+    end
+
+    assert_redirected_to users_url
+  end
+end

test/fixtures/users.yml

@@ -0,0 +1,7 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  username: MyString
+
+two:
+  username: MyString

test/models/user_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class UserTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/system/users_test.rb

@@ -0,0 +1,41 @@
+require "application_system_test_case"
+
+class UsersTest < ApplicationSystemTestCase
+  setup do
+    @user = users(:one)
+  end
+
+  test "visiting the index" do
+    visit users_url
+    assert_selector "h1", text: "Users"
+  end
+
+  test "should create user" do
+    visit users_url
+    click_on "New user"
+
+    fill_in "Username", with: @user.username
+    click_on "Create User"
+
+    assert_text "User was successfully created"
+    click_on "Back"
+  end
+
+  test "should update User" do
+    visit user_url(@user)
+    click_on "Edit this user", match: :first
+
+    fill_in "Username", with: @user.username
+    click_on "Update User"
+
+    assert_text "User was successfully updated"
+    click_on "Back"
+  end
+
+  test "should destroy User" do
+    visit user_url(@user)
+    click_on "Destroy this user", match: :first
+
+    assert_text "User was successfully destroyed"
+  end
+end