Installed Devsie and created users model and signed in

Gemfile

@@ -2,6 +2,7 @@ source 'https://rubygems.org'
 
 #Flutter Componentes
 gem 'bootstrap-sass', '~> 3.3.6'
+gem 'devise'
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '4.2.5.1'
 # Use sqlite3 as the database for Active Record

Gemfile.lock

@@ -39,6 +39,7 @@ GEM
     arel (6.0.3)
     autoprefixer-rails (6.3.6)
       execjs
+    bcrypt (3.1.11-x86-mingw32)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
     bootstrap-sass (3.3.6)
@@ -55,6 +56,12 @@ GEM
     coffee-script-source (1.10.0)
     concurrent-ruby (1.0.2)
     debug_inspector (0.0.2)
+    devise (4.1.0)
+      bcrypt (~> 3.0)
+      orm_adapter (~> 0.1)
+      railties (>= 4.1.0, < 5.1)
+      responders
+      warden (~> 1.2.3)
     erubis (2.7.0)
     execjs (2.6.0)
     globalid (0.3.6)
@@ -80,6 +87,7 @@ GEM
     multi_json (1.12.0)
     nokogiri (1.6.7.2-x86-mingw32)
       mini_portile2 (~> 2.0.0.rc2)
+    orm_adapter (0.5.0)
     rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -110,6 +118,8 @@ GEM
     rake (11.1.2)
     rdoc (4.2.2)
       json (~> 1.4)
+    responders (2.2.0)
+      railties (>= 4.2.0, < 5.1)
     sass (3.4.22)
     sass-rails (5.0.4)
       railties (>= 4.0.0, < 5.0)
@@ -139,6 +149,8 @@ GEM
       tzinfo (>= 1.0.0)
     uglifier (3.0.0)
       execjs (>= 0.3.0, < 3)
+    warden (1.2.6)
+      rack (>= 1.0)
     web-console (2.3.0)
       activemodel (>= 4.0)
       binding_of_caller (>= 0.7.2)
@@ -152,6 +164,7 @@ DEPENDENCIES
   bootstrap-sass (~> 3.3.6)
   byebug
   coffee-rails (~> 4.1.0)
+  devise
   jbuilder (~> 2.0)
   jquery-rails
   rails (= 4.2.5.1)

app/models/user.rb

@@ -0,0 +1,6 @@
+class User < ActiveRecord::Base
+  # Include default devise modules. Others available are:
+  # :confirmable, :lockable, :timeoutable and :omniauthable
+  devise :database_authenticatable, :registerable,
+         :recoverable, :rememberable, :trackable, :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| %>
+  <%= devise_error_messages! %>
+
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true, 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/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| %>
+  <%= devise_error_messages! %>
+  <%= 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: "off" %>
+  </div>
+
+  <div class="field">
+    <%= f.label :password_confirmation, "Confirm new password" %><br />
+    <%= f.password_field :password_confirmation, autocomplete: "off" %>
+  </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| %>
+  <%= devise_error_messages! %>
+
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true %>
+  </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 +1,39 @@
+<h2>Edit <%= resource_name.to_s.humanize %></h2>
+
+<%= form_for(resource, as: resource_name, url: registration_path(resource_name), html: { method: :put }) do |f| %>
+  <%= devise_error_messages! %>
+
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true %>
+  </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: "off" %>
+  </div>
+
+  <div class="field">
+    <%= f.label :password_confirmation %><br />
+    <%= f.password_field :password_confirmation, autocomplete: "off" %>
+  </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: "off" %>
+  </div>
+
+  <div class="actions">
+    <%= f.submit "Update" %>
+  </div>
+<% end %>
+
+<h3>Cancel my account</h3>
+
+<p>Unhappy? <%= button_to "Cancel my account", registration_path(resource_name), data: { confirm: "Are you sure?" }, method: :delete %></p>
+
+<%= 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| %>
+  <%= devise_error_messages! %>
+
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true %>
+  </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: "off" %>
+  </div>
+
+  <div class="field">
+    <%= f.label :password_confirmation %><br />
+    <%= f.password_field :password_confirmation, autocomplete: "off" %>
+  </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 %>
+  </div>
+
+  <div class="field">
+    <%= f.label :password %><br />
+    <%= f.password_field :password, autocomplete: "off" %>
+  </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/_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| %>
+    <%= link_to "Sign in with #{OmniAuth::Utils.camelize(provider)}", omniauth_authorize_path(resource_name, provider) %><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| %>
+  <%= devise_error_messages! %>
+
+  <div class="field">
+    <%= f.label :email %><br />
+    <%= f.email_field :email, autofocus: true %>
+  </div>
+
+  <div class="actions">
+    <%= f.submit "Resend unlock instructions" %>
+  </div>
+<% end %>
+
+<%= render "devise/shared/links" %>

app/views/layouts/application.html.erb

@@ -9,6 +9,8 @@
 <body>
 <%= render'/layouts/nav' %>
 <div class="container">
+  <span class="notice"><%= notice %></span>
+  <span class="alert"><%= alert %></span>
   <%= yield %>
 </div>
 </body>

config/environments/development.rb

@@ -1,4 +1,6 @@
 Rails.application.configure do
+  #for Devise
+   config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
   # Settings specified here will take precedence over those in config/application.rb.
 
   # In the development environment your application's code is reloaded on