Code Explainers

Code explainers tagged #before-action

ruby 
class ApplicationController < ActionController::Base
  EXPERIMENTS = {
    checkout_button_color: %w[control blue green],
    onboarding_flow: %w[control streamlined]

How A/B test cohorts are assigned in Rails

a-b-testing cookies hashing
Intermediate 8 steps
ruby 
class ApplicationController < ActionController::Base
  INACTIVITY_TIMEOUT = 30.minutes
 
  before_action :expire_stale_session

Idle session timeout in a Rails controller

authentication session-management before-action
Intermediate 6 steps
ruby 
class DocumentsController < ApplicationController
  before_action :authenticate_user!
  before_action :set_document
 

Serving secure file downloads in Rails

authorization signed-urls active-storage
Intermediate 8 steps
ruby 
class ArticlesController < ApplicationController
  before_action :set_article, only: %i[show edit update destroy publish]
 
  def edit

Policy-based authorization in a Rails controller

authorization policy-object before-action
Intermediate 9 steps