Devise Gem

Setting up Devise

rails generate devise:install

Set a root route

Devise wants us to define a root route with:

# config/routes.rb

root "boards#index"

Generate user account

Use the generator to create the User model and routes.

rails generate devise user

rake db:migrate

Explore Devise-provided RCAVs

Restart the application server and find four new routes defined:

• GET /users/sign_up
• GET /users/sign_in
• GET /users/sign_out
• GET /users/edit

current_user

current_user is a helper method provided by the Devise gem used to access the logged-in user in controllers or views.

Add foreign key columns

Associate boards and posts with owners. Modify database tables to add a new foreign key column.

rails generate migration AddUserIdToBoards user_id:integer

db:migrate

and

rails generate migration AddUserIdToPosts user_id:integer

db:migrate

Add foreign keys in controller actions

Now that foreign key columns are in the database tables, visit any controller actions and make sure current_user.id is passed to any actions that need it (e.g. boards#create).

Update sample data task

user_id is not required in boards and posts. Open lib/tasks/dev.rake and update sample_data to include the foreign key when creating sample data.