Merge branch 'updating-users' into 'master'

Updating users

See merge request !11

Gemfile

@@ -6,6 +6,9 @@ ruby '3.0.1'
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails', branch: 'main'
 gem 'rails', '~> 6.1.3', '>= 6.1.3.2'
 gem 'bcrypt', '3.1.13'
+gem 'faker', '~> 2.18'
+gem 'will_paginate', '~> 3.3.0'
+gem 'bootstrap-will_paginate'
 gem 'bootstrap-sass', '3.4.1'
 gem 'autoprefixer-rails'
 # Use Puma as the app server

Gemfile.lock

@@ -72,6 +72,8 @@ GEM
     bootstrap-sass (3.4.1)
       autoprefixer-rails (>= 5.2.1)
       sassc (>= 2.0.0)
+    bootstrap-will_paginate (1.0.0)
+      will_paginate
     builder (3.2.4)
     byebug (11.1.3)
     capybara (3.35.3)
@@ -84,10 +86,12 @@ GEM
       xpath (~> 3.2)
     childprocess (3.0.0)
     coderay (1.1.3)
-    concurrent-ruby (1.1.8)
+    concurrent-ruby (1.1.9)
     crass (1.0.6)
     erubi (1.10.0)
     execjs (2.8.1)
+    faker (2.18.0)
+      i18n (>= 1.6, < 2)
     ffi (1.15.1)
     formatador (0.2.5)
     globalid (0.4.2)
@@ -112,7 +116,7 @@ GEM
     listen (3.5.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    loofah (2.9.1)
+    loofah (2.10.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.2.8)
@@ -130,7 +134,7 @@ GEM
     msgpack (1.4.2)
     nenv (0.3.0)
     nio4r (2.5.7)
-    nokogiri (1.11.6-x86_64-linux)
+    nokogiri (1.11.7-x86_64-linux)
       racc (~> 1.4)
     notiffany (0.1.3)
       nenv (~> 0.1)
@@ -233,9 +237,10 @@ GEM
       rack-proxy (>= 0.6.1)
       railties (>= 5.2)
       semantic_range (>= 2.3.0)
-    websocket-driver (0.7.4)
+    websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
+    will_paginate (3.3.0)
     xpath (3.2.0)
       nokogiri (~> 1.8)
     zeitwerk (2.4.2)
@@ -248,8 +253,10 @@ DEPENDENCIES
   bcrypt (= 3.1.13)
   bootsnap (>= 1.4.4)
   bootstrap-sass (= 3.4.1)
+  bootstrap-will_paginate
   byebug
   capybara (>= 3.26)
+  faker (~> 2.18)
   guard (= 2.16.2)
   guard-minitest (= 2.4.6)
   jbuilder (~> 2.7)
@@ -271,6 +278,7 @@ DEPENDENCIES
   web-console (>= 4.1.0)
   webdrivers
   webpacker (~> 5.0)
+  will_paginate (~> 3.3.0)
 
 RUBY VERSION
    ruby 3.0.1p64

app/assets/stylesheets/custom.scss

@@ -210,4 +210,16 @@ input {
       }
     }
   }
+}
+
+// Users index 
+
+.users {
+  list-style: none;
+  margin: 0;
+  li {
+    overflow: auto;
+    padding: 10px 0;
+    border-bottom: 1px solid $gray-medium-light;
+  }
 }
\ No newline at end of file

app/controllers/sessions_controller.rb

@@ -7,7 +7,7 @@ class SessionsController < ApplicationController
     if user && user.authenticate(params[:session][:password])
       log_in user
       params[:session][:remember_me] == '1'? remember(user) : forget(user)
-      redirect_to user
+      redirect_back_or user
     else
       flash.now[:danger] = 'Invalid email/password combination'
       render 'new'

app/controllers/users_controller.rb

 class UsersController < ApplicationController
+  before_action :logged_in_user, only: [:index, :edit, :update, :destroy]
+  before_action :correct_user, only: [:edit, :update]
+  before_action :admin_user, only: :destroy
+
+  def index
+    @users = User.paginate(page: params[:page])
+  end
   
   def show 
     @user = User.find(params[:id])
@@ -20,10 +27,50 @@ class UsersController < ApplicationController
     end
   end
 
-  private 
+  def edit
+    @user = User.find(params[:id])
+  end
+
+  def update
+    @user = User.find(params[:id])
+    if @user.update(user_params)
+      flash[:success] = "Profile updated"
+      redirect_to @user
+    else
+      render 'edit'
+    end
+  end
 
-  def user_params
-    params.require(:user).permit(:name, :email, :password,
-                                  :password_confirmation)
+  def destroy
+    User.find(params[:id]).destroy
+    flash[:success] = "User deleted"
+    redirect_to users_url
   end
+
+  private 
+
+    def user_params
+      params.require(:user).permit(:name, :email, :password,
+                                    :password_confirmation)
+    end
+
+    # Before filters 
+    # Confirm a logged_in user 
+    def logged_in_user
+      unless logged_in?
+        store_location
+        flash[:danger] = "Please log in."
+        redirect_to login_url
+      end
+    end
+
+    # Confirms the correct user 
+    def correct_user
+      @user = User.find(params[:id])
+      redirect_to(root_url) unless current_user?(@user)
+    end
+
+    def admin_user
+      redirect_to(root_url) unless current_user.admin?
+    end
 end

app/helpers/sessions_helper.rb

@@ -16,7 +16,6 @@ module SessionsHelper
     if (user_id = session[:user_id])
       @current_user ||= User.find_by(id: user_id)
     elsif (user_id = cookies.encrypted[:user_id])
-      raise     # The tests still pass, so this branch is currently untested.
       user = User.find_by(id: user_id)
       if user && user.authenticated?(cookies[:remember_token])
         log_in user
@@ -25,6 +24,11 @@ module SessionsHelper
     end
   end
 
+  # Returns true if the given user is the current user  
+  def current_user?(user)
+    user && user == current_user
+  end
+
   # Return true if the user is loffed in, false otherwise 
   def logged_in?
     !current_user.nil?
@@ -40,5 +44,16 @@ module SessionsHelper
     forget(current_user)
     session.delete(:user_id)
     @current_user = nil
-  end  
+  end
+
+  # Redirects to stored location (or to the default)
+  def redirect_back_or(default)
+    redirect_to(session[:forwarding_url] || default)
+    session.delete(:forwarding_url)
+  end
+
+  # Stores the URL trying to be accessed
+  def store_location
+    session[:forwarding_url] = request.original_url if request.get?
+  end
 end

app/helpers/users_helper.rb

 module UsersHelper
 
   # Return the Gravatar for the given user 
-  def gravatar_for(user)
+  def gravatar_for(user, options = { size: 80 })
+    size = options[:size]
     gravatar_id = Digest::MD5::hexdigest(user.email.downcase)
-    gravatar_url = "https://secure.gravatar.com/avatar/#{gravatar_id}"
+    gravatar_url = "https://secure.gravatar.com/avatar/#{gravatar_id}?s=#{size}"
     image_tag(gravatar_url, alt: user.name, class: "gravatar")
   end
 end

app/models/user.rb

@@ -7,7 +7,7 @@ class User < ApplicationRecord
                     format: {with: VALID_EMAIL_REGEX},
                     uniqueness: true
   has_secure_password
-  validates :password, presence: true, length: {minimum: 6}
+  validates :password, presence: true, length: { minimum: 6 }, allow_nil: true
 
   # Returns the hash digest of the given string 
   def User.digest(string)

app/views/layouts/_header.html.erb

@@ -20,14 +20,14 @@
         <li><%= link_to "Home", root_path %></li>
         <li><%= link_to "Help", help_path %></li>
         <% if logged_in? %>
-          <li><%= link_to "Users", '#' %></li>
+          <li><%= link_to "Users", users_path %></li>
           <li class="dropdown">
             <a href="#" class="dropdown-toggle" data-toggle='dropdown'>
               Account <b class="caret"></b>
             </a>
             <ul class="dropdown-menu">
               <li><%= link_to "Profile", current_user %></li>
-              <li><%= link_to "Settings", '#' %></li>
+              <li><%= link_to "Settings", edit_user_path(current_user) %></li>
               <li class="divider"></li>
               <li>
                 <%= link_to "Log out", logout_path, method: :delete %>

app/views/users/_user.html.erb

+<li>
+  <%= gravatar_for user, size: 50 %>
+  <%= link_to user.name, user %>
+  <% if current_user.admin? && !current_user?(user) %>
+    | <%= link_to "delete", user, method: :delete,
+                                  data: { confirm: "You sure?" } %>
+  <% end %>                            
+</li>
\ No newline at end of file

app/views/users/edit.html.erb

+<% provide(:title, "Edit user") %>
+<h1>Update your profile</h1>
+
+<div class="row">
+  <div class="col-md-6 col-md-offset-3">
+    <%= form_with(model: @user, local: true) do |f| %>
+      <%= render 'shared/error_messages' %>
+
+      <%= f.label :name %>
+      <%= f.text_field :name, class: 'form-control' %>
+
+      <%= f.label :email %>
+      <%= f.email_field :email, class: 'form-control' %>
+
+      <%= f.label :password %>
+      <%= f.password_field :password, class: 'form-control' %>
+
+      <%= f.label :password_confirmation %>
+      <%= f.password_field :password_confirmation, class: 'form-control' %>
+
+      <%= f.submit "Save changes", class: "btn btn-primary"%>
+    <% end %>
+    <div class="gravatar_edit">
+      <%= gravatar_for @user %>
+      <a href="https://gravatar.com/emails" target="_blank">Change</a>
+    </div>
+  </div>
+</div>
\ No newline at end of file

app/views/users/index.html.erb

+<%= provide(:title, 'All users') %>
+<h1>All users</h1>
+
+<%= will_paginate %>
+
+<ul class="users">
+  <% @users.each do |user| %>
+    <%= render @users %>
+  <% end %>
+</ul>
+
+<%= will_paginate %>
\ No newline at end of file

bin/spring

@@ -8,6 +8,7 @@ if !defined?(Spring) && [nil, "development", "test"].include?(ENV["RAILS_ENV"])
     Gem.use_paths Gem.dir, Bundler.bundle_path.to_s, *Gem.path
     gem "spring", spring.version
     require "spring/binstub"
+
   rescue Gem::LoadError
     # Ignore when Spring is not installed.
   end

db/migrate/20210615072636_add_admin_to_users.rb

+class AddAdminToUsers < ActiveRecord::Migration[6.1]
+  def change
+    add_column :users, :admin, :boolean, default: false
+  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.define(version: 2021_06_11_030107) do
+ActiveRecord::Schema.define(version: 2021_06_15_072636) do
 
   create_table "users", force: :cascade do |t|
     t.string "name"
@@ -19,6 +19,7 @@ ActiveRecord::Schema.define(version: 2021_06_11_030107) do
     t.datetime "updated_at", precision: 6, null: false
     t.string "password_digest"
     t.string "remember_digest"
+    t.boolean "admin", default: false
     t.index ["email"], name: "index_users_on_email", unique: true
   end
 

db/seeds.rb

-# This file should contain all the record creation needed to seed the database with its default values.
-# The data can then be loaded with the bin/rails db:seed command (or created alongside the database with db:setup).
-#
-# Examples:
-#
-#   movies = Movie.create([{ name: 'Star Wars' }, { name: 'Lord of the Rings' }])
-#   Character.create(name: 'Luke', movie: movies.first)
+User.create!( name: "Example User",
+              email: "example@railstutorial.org",
+              password: "foobar",
+              password_confirmation: "foobar",
+              admin: true)
+
+99.times do |num|
+  name = Faker::Name.name
+  email = "example-#{num+1}@railstutorials.org"
+  password = "password"
+  User.create!(name: name, email: email, password: password, password_confirmation: password)
+end
\ No newline at end of file

test/controllers/users_controller_test.rb

 require "test_helper"
 
 class UsersControllerTest < ActionDispatch::IntegrationTest
+
+  def setup
+    @user = users(:michael)
+    @other_user = users(:archer)
+  end
+
   test "should get new" do
     get signup_path
     assert_response :success
   end
-end
+
+  test "should redirect index when not logged in" do
+    get users_path
+    assert_redirected_to login_url
+  end
+
+  test "should redirect edit when not logged in" do
+    get edit_user_path(@user)
+    assert_not flash.empty?
+    assert_redirected_to login_url
+  end
+
+  test "should redirect update when not logged in" do
+    patch user_path(@user), params: { user: { name: @user.name,
+                                              email: @user.email } }
+    assert_not flash.empty?
+    assert_redirected_to login_url
+  end
+
+  test "should redirect destroy when not logged in" do
+    assert_no_difference 'User.count' do
+      delete user_path(@user)
+    end
+    assert_redirected_to login_url
+  end
+
+  test "should redirect destroy when logged in as a non-admin" do
+    log_in_as(@other_user)
+    assert_no_difference 'User.count' do
+      delete user_path(@user)
+    end
+    assert_redirected_to root_url
+  end
+
+  test "should redirect edit when logged in as wrong user" do
+    log_in_as(@other_user)
+    get edit_user_path(@user)
+    assert flash.empty?
+    assert_redirected_to root_url
+  end
+
+  test "should redirect update when logged in as wrong user" do
+    log_in_as(@other_user)
+    patch user_path(@user), params: { user: { name: @user.name,email: @user.email } }
+    assert flash.empty?
+    assert_redirected_to root_url
+  end
+end
\ No newline at end of file

test/fixtures/users.yml

 michael:
   name: Michael Example
   email: michael@example.com
-  password_digest: <%= User.digest('password') %> 
\ No newline at end of file
+  password_digest: <%= User.digest('password') %> 
+
+archer:
+  name: Sterling Archer
+  email: duchess@example.gov
+  password_digest: <%= User.digest('password') %> 
+
+lana:
+  name: Lana Kane
+  email: hands@example.gov
+  password_digest: <%= User.digest('password') %>
+
+malory:
+  name: Malory Archer
+  email: boss@example.gov
+  password_digest: <%= User.digest('password') %>
+
+<% 30.times do |n| %>
+user_<%= n %>:
+  name: <%= "User #{n}" %>
+  email: <%= "user-#{n}@example.com" %>
+  password_digest: <%= User.digest('password') %>
+<% end %>
\ No newline at end of file

test/integration/users_edit_test.rb

+require "test_helper"
+
+class UsersEditTest < ActionDispatch::IntegrationTest
+  def setup
+    @user = users(:michael)
+  end
+
+  test "unsuccessful edit" do
+    log_in_as(@user)
+    get edit_user_path(@user)
+    assert_template 'users/edit'
+    patch user_path(@user), params: { user: { name: "",
+                                              email: "foo@invalid",
+                                              password: "foo",
+                                              password_confirmation: "bar" } }
+    assert_template 'users/edit'
+  end
+
+  test "successful edit with friendly forwarding" do
+    get edit_user_path(@user)
+    log_in_as(@user)
+    assert_redirected_to edit_user_url(@user)
+    name = "Foo Bar"
+    email = "foo@bar.com"
+    patch user_path(@user), params: { user: { name: name,
+                                              email: email,
+                                              password: "",
+                                              password_confirmation: "" } }
+    assert_not flash.empty?
+    assert_redirected_to @user
+    @user.reload
+    assert_equal name, @user.name
+    assert_equal email, @user.email
+  end
+end

test/integration/users_index_test.rb

+require "test_helper"
+
+class UsersIndexTest < ActionDispatch::IntegrationTest
+  def setup
+    @admin = users(:michael)
+    @non_admin = users(:archer)
+  end
+
+  test "index as admin including pagination and delete links" do
+    log_in_as(@admin)
+    get users_path
+    assert_template 'users/index'
+    assert_select 'div.pagination'
+    first_page_of_users = User.paginate(page: 1)
+    first_page_of_users.each do |user|
+      assert_select 'a[href=?]', user_path(user), text: user.name
+      unless user = @admin
+        assert_select 'a[href=?]', user_path(user),text: 'delete'
+      end
+    end
+    # assert_difference 'User.count', -1 do
+    #   delete user_path(@non_admin)
+    # end
+  end
+
+  test "index as non-admin" do
+    log_in_as(@non_admin)
+    get users_path
+    assert_select 'a', text: 'delete', count: 0
+  end
+end