devise-cheatesheet

https://github.com/plataformatec/devise

gem 'devise'

rails generate devise:install
#possible configuration for config/environments/development.rb
config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }

rails generate devise MODEL ( or User or what ever)

rake db:migrate


rails generate devise:views ( coppying gem files into the view forlder to be altered )

then go to config/initializers/devise.rb 
and then comment/add config.scoped_views = true

then alter the form in views 




###inside controller/application.rb #####
class ApplicationController < ActionController::Base
  before_action :configure_permitted_parameters, if: :devise_controller?

  protected

  def configure_permitted_parameters
    devise_parameter_sanitizer.permit(:sign_up, keys: [:username])
  end
end
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