Code Explainers

Code explainers tagged #error handling

ruby 
class CheckoutService
  Result = Struct.new(:success?, :order, :error, keyword_init: true)
 
  def self.call(...)

How a Rails checkout service object works

service object transactions result object
Intermediate 9 steps
ruby 
class RegistrationForm
  include ActiveModel::Model
  include ActiveModel::Attributes
 

How a Rails form object spans two models

form object validations transactions
Intermediate 7 steps