Devise :: :: In Rails with the Link of If and else.

Devise :: Pdf is also attached in this link :: You can check this tutorial and devise will successsfully run in your application definately.

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1. Add gemfile of devise gem in gemfile ::

1. Add this devise gemcode in your gemfile and bundle update or bundle

command run at terminal

gem ‘devise’

bundle

2. Set up devise in your App ::

Run this Command at your Terminal

rails g devise:install

3. Configure Devise :: First do this then give the command of rails g devise:install

Write this code in the config/enviornments/development.rb

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

4. Setup User Model ::

rails g devise user or rails g devise user --force

rails db:migrate

5. Make the controller with the action

rails g controller home index

6. Set Path route and Default Route ::

get 'home/index'

root to :home#index

7. Create the First User ::

http:://localhost:3000/users/sign_up and create your Account

8. Add Sign Up and Login Links ::

app/views/layout.application.html.erb ::

<% if user_signed_in? %>

Logged in as <strong><%= current_user.email %></strong>

<%= link_to 'Edit Profile',edit_user_registration_path, :class=> 'navbar-link' %>|

<%= link_to "Logout", destroy_user_session_path, method: :delete, :class=>'navbar-link'

<% else %>

<%= link_to "Sign up", new_user_registration_path, :class=>'navbar-link' %>

<%= link_to "Login", new_user_session_path, :class=>'navbar-link' %>

<%end%>

9. If User is not Signed in then force User to redirect to the Login Page::

before_action :authenticate_user!

Dwijendra Parashar