ruby

class CheckoutService
  def initialize(cart:, user:)
    @cart = cart
    @user = user
  end

Rails.application.config.middleware.insert_before 0, Rack::Cors do
  allow do
    origins 'https://app.example.com', 'https://admin.example.com'
    resource '/api/*',
      headers: %w[Authorization Content-Type],
      methods: %i[get post patch delete options],

Rails.application.config.content_security_policy do |policy|
  policy.default_src :self
  policy.font_src    :self, :https, :data
  policy.img_src     :self, :https, :data, "https://cdn.example.com"
  policy.object_src  :none
  policy.script_src  :self, :https

import { Controller } from "@hotwired/stimulus"

export default class extends Controller {
  static targets = ["count", "button"]
  static values = {
    url: String,

import { Controller } from "@hotwired/stimulus"
import consumer from "../channels/consumer"

export default class extends Controller {
  static values = { roomId: Number }

# Gemfile
gem 'dry-types'
gem 'dry-struct'

require 'dry-types'
require 'dry-struct'

module ExistenceChecks
  extend ActiveSupport::Concern

  class_methods do
    def has_any?(conditions = {})
      relation = conditions.present? ? where(conditions) : all

class NotifyFollowersJob
  include Sidekiq::Job

  sidekiq_options queue: :notifications, retry: 5

  def perform(post_id, actor_id)

Apartment.configure do |config|
  config.excluded_models = %w[Tenant User]
  config.tenant_names = -> { Tenant.pluck(:schema_name) }
  config.use_schemas = true
end

class AddUniqueIndexToInventorySnapshots < ActiveRecord::Migration[7.1]
  disable_ddl_transaction!

  def change
    add_index :inventory_snapshots,
              [:warehouse_id, :sku],

<h1>Products</h1>

<%= link_to "New product", new_product_path, data: { turbo_frame: "modal" }, class: "btn" %>

<table id="products">
  <tbody>

<h1><%= @post.title %></h1>
<p><%= @post.author_name %></p>

<%# Only sanitized rich text should be rendered as HTML %>
<div class="prose"><%= sanitize(@post.body_html, tags: %w[p a ul ol li strong em code], attributes: %w[href]) %></div>