Add Devise with default generated views and log in/out buttons

Gemfile

@@ -51,3 +51,5 @@ group :development do
   # Use console on exceptions pages [https://github.com/rails/web-console]
   gem "web-console"
 end
+
+gem "devise", "~> 4.9"

Gemfile.lock

@@ -73,6 +73,7 @@ GEM
       tzinfo (~> 2.0, >= 2.0.5)
     ast (2.4.2)
     base64 (0.2.0)
+    bcrypt (3.1.20)
     bigdecimal (3.1.8)
     bindex (0.8.1)
     bootsnap (1.18.4)
@@ -87,6 +88,12 @@ GEM
     debug (1.9.2)
       irb (~> 1.10)
       reline (>= 0.3.8)
+    devise (4.9.4)
+      bcrypt (~> 3.0)
+      orm_adapter (~> 0.1)
+      railties (>= 4.1.0)
+      responders
+      warden (~> 1.2.3)
     diff-lcs (1.5.1)
     drb (2.2.1)
     erubi (1.13.0)
@@ -142,6 +149,7 @@ GEM
       racc (~> 1.4)
     nokogiri (1.16.7-x86_64-linux)
       racc (~> 1.4)
+    orm_adapter (0.5.0)
     parallel (1.26.3)
     parser (3.3.5.0)
       ast (~> 2.4.1)
@@ -195,6 +203,9 @@ GEM
     regexp_parser (2.9.2)
     reline (0.5.10)
       io-console (~> 0.5)
+    responders (3.1.1)
+      actionpack (>= 5.2)
+      railties (>= 5.2)
     rspec-core (3.13.1)
       rspec-support (~> 3.13.0)
     rspec-expectations (3.13.3)
@@ -271,6 +282,8 @@ GEM
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.6.0)
     useragent (0.16.10)
+    warden (1.2.9)
+      rack (>= 2.0.9)
     web-console (4.2.1)
       actionview (>= 6.0.0)
       activemodel (>= 6.0.0)
@@ -302,6 +315,7 @@ DEPENDENCIES
   bootsnap
   brakeman
   debug
+  devise (~> 4.9)
   importmap-rails
   jbuilder
   puma (>= 5.0)

app/controllers/home_controller.rb

@@ -0,0 +1,4 @@
+class HomeController < ApplicationController
+  def index
+  end
+end

app/helpers/home_helper.rb

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

app/models/user.rb

@@ -0,0 +1,6 @@
+class User < ApplicationRecord
+  # Include default devise modules. Others available are:
+  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
+  devise :database_authenticatable, :registerable,
+         :recoverable, :rememberable, :validatable
+end

app/views/devise/confirmations/new.html.erb

@@ -0,0 +1,16 @@
+<h2>Resend confirmation instructions</h2>
+
+<%= form_for(resource, as: resource_name, url: confirmation_path(resource_name), html: { method: :post }) do |f| %>
+  <%= render "devise/shared/error_messages", resource: resource %>
+
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true, autocomplete: "email", value: (resource.pending_reconfirmation? ? resource.unconfirmed_email : resource.email) %>
+  </div>
+
+  <div class="actions">
+    <%= f.submit "Resend confirmation instructions" %>
+  </div>
+<% end %>
+
+<%= render "devise/shared/links" %>

app/views/devise/mailer/confirmation_instructions.html.erb

@@ -0,0 +1,5 @@
+<p>Welcome <%= @email %>!</p>
+
+<p>You can confirm your account email through the link below:</p>
+
+<p><%= link_to 'Confirm my account', confirmation_url(@resource, confirmation_token: @token) %></p>

app/views/devise/mailer/email_changed.html.erb

@@ -0,0 +1,7 @@
+<p>Hello <%= @email %>!</p>
+
+<% if @resource.try(:unconfirmed_email?) %>
+  <p>We're contacting you to notify you that your email is being changed to <%= @resource.unconfirmed_email %>.</p>
+<% else %>
+  <p>We're contacting you to notify you that your email has been changed to <%= @resource.email %>.</p>
+<% end %>

app/views/devise/mailer/password_change.html.erb

@@ -0,0 +1,3 @@
+<p>Hello <%= @resource.email %>!</p>
+
+<p>We're contacting you to notify you that your password has been changed.</p>

app/views/devise/mailer/reset_password_instructions.html.erb

@@ -0,0 +1,8 @@
+<p>Hello <%= @resource.email %>!</p>
+
+<p>Someone has requested a link to change your password. You can do this through the link below.</p>
+
+<p><%= link_to 'Change my password', edit_password_url(@resource, reset_password_token: @token) %></p>
+
+<p>If you didn't request this, please ignore this email.</p>
+<p>Your password won't change until you access the link above and create a new one.</p>

app/views/devise/mailer/unlock_instructions.html.erb

@@ -0,0 +1,7 @@
+<p>Hello <%= @resource.email %>!</p>
+
+<p>Your account has been locked due to an excessive number of unsuccessful sign in attempts.</p>
+
+<p>Click the link below to unlock your account:</p>
+
+<p><%= link_to 'Unlock my account', unlock_url(@resource, unlock_token: @token) %></p>

app/views/devise/passwords/edit.html.erb

@@ -0,0 +1,25 @@
+<h2>Change your password</h2>
+
+<%= form_for(resource, as: resource_name, url: password_path(resource_name), html: { method: :put }) do |f| %>
+  <%= render "devise/shared/error_messages", resource: resource %>
+  <%= f.hidden_field :reset_password_token %>
+
+  <div class="field">
+    <%= f.label :password, "New password" %><br />
+    <% if @minimum_password_length %>
+      <em>(<%= @minimum_password_length %> characters minimum)</em><br />
+    <% end %>
+    <%= f.password_field :password, autofocus: true, autocomplete: "new-password" %>
+  </div>
+
+  <div class="field">
+    <%= f.label :password_confirmation, "Confirm new password" %><br />
+    <%= f.password_field :password_confirmation, autocomplete: "new-password" %>
+  </div>
+
+  <div class="actions">
+    <%= f.submit "Change my password" %>
+  </div>
+<% end %>
+
+<%= render "devise/shared/links" %>

app/views/devise/passwords/new.html.erb

@@ -0,0 +1,16 @@
+<h2>Forgot your password?</h2>
+
+<%= form_for(resource, as: resource_name, url: password_path(resource_name), html: { method: :post }) do |f| %>
+  <%= render "devise/shared/error_messages", resource: resource %>
+
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true, autocomplete: "email" %>
+  </div>
+
+  <div class="actions">
+    <%= f.submit "Send me reset password instructions" %>
+  </div>
+<% end %>
+
+<%= render "devise/shared/links" %>

app/views/devise/registrations/edit.html.erb

@@ -0,0 +1,43 @@
+<h2>Edit <%= resource_name.to_s.humanize %></h2>
+
+<%= form_for(resource, as: resource_name, url: registration_path(resource_name), html: { method: :put }) do |f| %>
+  <%= render "devise/shared/error_messages", resource: resource %>
+
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true, autocomplete: "email" %>
+  </div>
+
+  <% if devise_mapping.confirmable? && resource.pending_reconfirmation? %>
+    <div>Currently waiting confirmation for: <%= resource.unconfirmed_email %></div>
+  <% end %>
+
+  <div class="field">
+    <%= f.label :password %> <i>(leave blank if you don't want to change it)</i><br />
+    <%= f.password_field :password, autocomplete: "new-password" %>
+    <% if @minimum_password_length %>
+      <br />
+      <em><%= @minimum_password_length %> characters minimum</em>
+    <% end %>
+  </div>
+
+  <div class="field">
+    <%= f.label :password_confirmation %><br />
+    <%= f.password_field :password_confirmation, autocomplete: "new-password" %>
+  </div>
+
+  <div class="field">
+    <%= f.label :current_password %> <i>(we need your current password to confirm your changes)</i><br />
+    <%= f.password_field :current_password, autocomplete: "current-password" %>
+  </div>
+
+  <div class="actions">
+    <%= f.submit "Update" %>
+  </div>
+<% end %>
+
+<h3>Cancel my account</h3>
+
+<div>Unhappy? <%= button_to "Cancel my account", registration_path(resource_name), data: { confirm: "Are you sure?", turbo_confirm: "Are you sure?" }, method: :delete %></div>
+
+<%= link_to "Back", :back %>

app/views/devise/registrations/new.html.erb

@@ -0,0 +1,29 @@
+<h2>Sign up</h2>
+
+<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
+  <%= render "devise/shared/error_messages", resource: resource %>
+
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true, autocomplete: "email" %>
+  </div>
+
+  <div class="field">
+    <%= f.label :password %>
+    <% if @minimum_password_length %>
+    <em>(<%= @minimum_password_length %> characters minimum)</em>
+    <% end %><br />
+    <%= f.password_field :password, autocomplete: "new-password" %>
+  </div>
+
+  <div class="field">
+    <%= f.label :password_confirmation %><br />
+    <%= f.password_field :password_confirmation, autocomplete: "new-password" %>
+  </div>
+
+  <div class="actions">
+    <%= f.submit "Sign up" %>
+  </div>
+<% end %>
+
+<%= render "devise/shared/links" %>

app/views/devise/sessions/new.html.erb

@@ -0,0 +1,26 @@
+<h2>Log in</h2>
+
+<%= form_for(resource, as: resource_name, url: session_path(resource_name)) do |f| %>
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true, autocomplete: "email" %>
+  </div>
+
+  <div class="field">
+    <%= f.label :password %><br />
+    <%= f.password_field :password, autocomplete: "current-password" %>
+  </div>
+
+  <% if devise_mapping.rememberable? %>
+    <div class="field">
+      <%= f.check_box :remember_me %>
+      <%= f.label :remember_me %>
+    </div>
+  <% end %>
+
+  <div class="actions">
+    <%= f.submit "Log in" %>
+  </div>
+<% end %>
+
+<%= render "devise/shared/links" %>

app/views/devise/shared/_error_messages.html.erb

@@ -0,0 +1,15 @@
+<% if resource.errors.any? %>
+  <div id="error_explanation" data-turbo-cache="false">
+    <h2>
+      <%= I18n.t("errors.messages.not_saved",
+                 count: resource.errors.count,
+                 resource: resource.class.model_name.human.downcase)
+       %>
+    </h2>
+    <ul>
+      <% resource.errors.full_messages.each do |message| %>
+        <li><%= message %></li>
+      <% end %>
+    </ul>
+  </div>
+<% end %>

app/views/devise/shared/_links.html.erb

@@ -0,0 +1,25 @@
+<%- if controller_name != 'sessions' %>
+  <%= link_to "Log in", new_session_path(resource_name) %><br />
+<% end %>
+
+<%- if devise_mapping.registerable? && controller_name != 'registrations' %>
+  <%= link_to "Sign up", new_registration_path(resource_name) %><br />
+<% end %>
+
+<%- if devise_mapping.recoverable? && controller_name != 'passwords' && controller_name != 'registrations' %>
+  <%= link_to "Forgot your password?", new_password_path(resource_name) %><br />
+<% end %>
+
+<%- if devise_mapping.confirmable? && controller_name != 'confirmations' %>
+  <%= link_to "Didn't receive confirmation instructions?", new_confirmation_path(resource_name) %><br />
+<% end %>
+
+<%- if devise_mapping.lockable? && resource_class.unlock_strategy_enabled?(:email) && controller_name != 'unlocks' %>
+  <%= link_to "Didn't receive unlock instructions?", new_unlock_path(resource_name) %><br />
+<% end %>
+
+<%- if devise_mapping.omniauthable? %>
+  <%- resource_class.omniauth_providers.each do |provider| %>
+    <%= button_to "Sign in with #{OmniAuth::Utils.camelize(provider)}", omniauth_authorize_path(resource_name, provider), data: { turbo: false } %><br />
+  <% end %>
+<% end %>

app/views/devise/unlocks/new.html.erb

@@ -0,0 +1,16 @@
+<h2>Resend unlock instructions</h2>
+
+<%= form_for(resource, as: resource_name, url: unlock_path(resource_name), html: { method: :post }) do |f| %>
+  <%= render "devise/shared/error_messages", resource: resource %>
+
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true, autocomplete: "email" %>
+  </div>
+
+  <div class="actions">
+    <%= f.submit "Resend unlock instructions" %>
+  </div>
+<% end %>
+
+<%= render "devise/shared/links" %>

app/views/home/index.html.erb

@@ -0,0 +1,2 @@
+<h1>Home#index</h1>
+<p>Find me in app/views/home/index.html.erb</p>

app/views/layouts/application.html.erb

@@ -18,6 +18,16 @@
   </head>
 
   <body>
+    <% if user_signed_in? %>
+      Logged in as <%= current_user.email %>.
+      <%= button_to 'Log Out', destroy_user_session_path, method: :delete %>
+    <% else %>
+      <%= button_to 'Log In', new_user_session_path %>
+    <% end %>
+
+    <p class="notice"><%= notice %></p>
+    <p class="alert"><%= alert %></p>
+
     <%= yield %>
   </body>
 </html>

config/environments/development.rb

@@ -78,4 +78,7 @@
 
   # Apply autocorrection by RuboCop to files generated by `bin/rails generate`.
   # config.generators.apply_rubocop_autocorrect_after_generate!
+
+  # Default url options for Action Mailer (required by Devise).
+  config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
 end