newappRoR_postgresql_tailwindcss_devise

This clean Ruby on Rails new app template may be cloned and used to quickly launch new apps with the following pre-installed and configured:

• PostgreSQL database
• Tailwind CSS default stylesheet
• Devise gem (basic User sign-in and registration already programmed)

Ruby version 3.2.2

Here are the commands that created the app, which you may reproduce in shell.

• STEP 1: Create new app

rails new app_name - d postgresql -css tailwind

bundle add devise

bundle install

rails g devise:install

• STEP 2: Configure Devise following terminal prompts

Add to config/environment/development.rb (sets development environment host):

config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }

Add to config/routes.rb (defines root):

root "static_pages#index"

Add to app/views/layouts/application.html.erb (activates flash notifications):

`

<%= notice %>

<%= alert %>

Create views

rails g devise:views

• STEP 3: Create view for landing page

rails g controller StaticPages index

add route for static_pages#index in routes.rb:

get 'static_pages#index', to: 'static_pages#index'

create view for static_pages#index

touch app/views/static_pages/index.html.erb

Put anything in HTML to test:

<h1>static_pages#index</h1>

• STEP 4: Create database and test

bin/rails db:create

Once the preceding steps have been completed, run a rails server to ensure correct installation/config. The page should display: static_pages#index.

rails s

• STEP 5: Create User via Devise

rails g devise User

rails g devise:views

rails db:migrate

Paste the following code in app/views/static_page/index.html.erb to display links:

<% if user_signed_in? %>
    
  <li>
    <%= link_to "Sign out", destroy_user_session_path, method: :delete, data: {turbo_method: :delete} %>
  </li>

  <li>
    Voici ton email : <%= current_user.email %>
  </li>

  <li>
    <%= link_to "Secret page", static_pages_secret_path %>
  </li>

  <li>
   <%= link_to "Edit email / password", edit_user_registration_path %>
  </li>

<% else %>
  <li>    
    <%= link_to "Sign in", new_user_session_path %>
  </li>

  <li>
    <%= link_to "Sign up", new_user_registration_path %>
  </li>

<% end %>

<% if user_signed_in? %>
  <p>Welcome, <%= current_user.email %>.</p>
<% end %>

touch app/views/static_pages/index.html.erb

Paste the following codein static_pages#secret

<h1>StaticPages#secret</h1> <p>Find me in app/views/static_pages/secret.html.erb</p> <% if user_signed_in? %> <p>This is a secret page visible to signed-in users.</p> <% else %> <p>You need to sign in to access this secret page.</p> <% end %>