Code Explainers

Code explainers tagged #callbacks

class Article < ApplicationRecord
  before_validation :generate_slug, on: :create
 
  validates :slug, presence: true, uniqueness: true,

How URL slugs work in Rails

callbacks validations slugs

Intermediate 7 steps

ruby

class ArticlesController < ApplicationController
  before_action :authenticate_user!
  before_action :set_article, only: %i[show edit update destroy]
  before_action :authorize_owner!, only: %i[edit update destroy]

How before_action filters guard a Rails controller

filters authorization callbacks

Intermediate 9 steps