facebook authenticate

app/controllers/users/omniauth_callbacks_controller.rb

@@ -0,0 +1,18 @@
+class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
+  def facebook
+    # You need to implement the method below in your model (e.g. app/models/user.rb)
+    @user = User.from_omniauth(request.env["omniauth.auth"])
+
+    if @user.persisted?
+      sign_in_and_redirect @user, :event => :authentication #this will throw if @user is not activated
+      set_flash_message(:notice, :success, :kind => "Facebook") if is_navigational_format?
+    else
+      session["devise.facebook_data"] = request.env["omniauth.auth"]
+      redirect_to new_user_registration_url
+    end
+  end
+
+  def failure
+    redirect_to root_path
+  end
+end

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

@@ -19,7 +19,8 @@
 <% 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 -%>
+<%- 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/homepages/index.html.erb

@@ -10,6 +10,8 @@
   </thead>
 
   <tbody>
+
+
     <p class="navbar-text pull-right">
     <% if user_signed_in? %>
       Logged in as <strong><%= current_user.email %></strong>.
@@ -18,7 +20,9 @@
     <% else %>
       <%= link_to "Sign up", new_user_registration_path, :class => 'navbar-link'  %> |
       <%= link_to "Login", new_user_session_path, :class => 'navbar-link'  %>
-      <%= link_to "Sign in with Facebook", user_facebook_omniauth_authorize_path %>
+      <!-- <%= link_to "Sign in with Facebook", user_facebook_omniauth_authorize_path %> -->
+
+
     <% end %>
     </p>
 

config/database.yml

@@ -5,21 +5,21 @@
 #   gem 'sqlite3'
 #
 default: &default
-  adapter: postgresql
+  adapter: sqlite3
   pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
   timeout: 5000
 
 development:
   <<: *default
-  database: db/development.postgresql
+  database: db/development.sqlite3
 
 # Warning: The database defined as "test" will be erased and
 # re-generated from your development database when you run "rake".
 # Do not set this db to the same as development or production.
 test:
   <<: *default
-  database: db/test.postgresql
+  database: db/test.sqlite3
 
 production:
   <<: *default
-  database: db/production.postgresql
+  database: db/production.sqlite3

config/initializers/devise.rb

@@ -251,7 +251,7 @@ Devise.setup do |config|
   # Add a new OmniAuth provider. Check the wiki for more information on setting
   # up on your models and hooks.
   # config.omniauth :github, 'APP_ID', 'APP_SECRET', scope: 'user,public_repo'
-  config.omniauth :facebook, "APP_ID", "APP_SECRET"
+  config.omniauth :facebook, "137009576938168", "5fb495fe5da4aad7d7e8f3863018c527"
   # ==> Warden configuration
   # If you want to use other strategies, that are not supported by Devise, or
   # change the failure app, you can configure them inside the config.warden block.