rails

ruby
class ApplicationController < ActionController::Base
  helper_method :turbo_native_app?

  private

  def turbo_native_app?

Turbo Native bridge for mobile hybrid apps

hotwire turbo-native mobile
by Jordan Lee 3 tabs
ruby
module Paginatable
  extend ActiveSupport::Concern

  Page = Struct.new(:records, :next_cursor, keyword_init: true)

  DEFAULT_LIMIT = 25

Cursor-Paginated Rails API with ETag and Conditional GET Caching

rails api http-caching
by codesnips 3 tabs
ruby
class ApplicationController < ActionController::Base
  before_action :set_turbo_cache_control

  class_attribute :turbo_no_cache, default: false

  def self.no_turbo_cache

Avoid caching sensitive pages in Turbo Drive

rails hotwire turbo
by codesnips 4 tabs
erb
<div class="settings-layout">
  <nav class="settings-sidebar">
    <h2>Settings</h2>
    <ul>
      <% settings_sections.each do |section| %>
        <li class="<%= "active" if current_page?(section.path) %>">

Turbo Frames: scoped navigation inside a sidebar

rails turbo hotwire
by codesnips 3 tabs
ruby
class Product < ApplicationRecord
  scope :by_status, ->(status) {
    status.present? ? where(status: status) : all
  }

  scope :in_category, ->(category_id) {

Composable Query Filters with Rails Scopes and a Filter Object

rails activerecord scopes
by codesnips 3 tabs
ruby
class ImportResult
  RowError = Struct.new(:line, :messages)

  attr_reader :imported, :row_errors

  def initialize

Streaming CSV Product Import With Per-Row Validation and Error Reporting in Rails

rails csv service-object
by codesnips 3 tabs
ruby
class DeliveryObserver
  def self.delivered_email(message)
    new(message).record
  end

  def initialize(message)

Action Mailer Delivery Observability Hook

rails observability action-mailer
by codesnips 3 tabs
ruby
class PriceBreakdown < Struct.new(:subtotal_cents, :discount_cents, :tax_cents, keyword_init: true)
  def initialize(*)
    super
    freeze
  end

Memoizing a Pricing Breakdown as an Immutable Value Object in Rails

rails memoization value-object
by codesnips 3 tabs
ruby
class LastSeenTracker
  THROTTLE = 5.minutes
  PENDING_KEY = "pending:last_seen".freeze

  class << self
    def touch(user_id, at: Time.current)

Database “Last Seen” without Hot Row Updates

rails performance redis
by codesnips 3 tabs
javascript
import { Controller } from "@hotwired/stimulus"

export default class extends Controller {
  static values = { keymap: Object }

  connect() {

Stimulus: keyboard shortcuts that work with Turbo navigation

rails stimulus hotwire
by codesnips 3 tabs
typescript
export type PostId = string & { readonly brand: unique symbol }
export type UserId = string & { readonly brand: unique symbol }

export interface User {
  id: UserId
  name: string

TypeScript types from Rails serializers

typescript types rails
by Maya Patel 1 tab
ruby
class CreateReservations < ActiveRecord::Migration[7.1]
  def up
    enable_extension "btree_gist" unless extension_enabled?("btree_gist")

    create_table :reservations do |t|
      t.references :room, null: false, foreign_key: true

DB-Level “no overlapping ranges” with exclusion constraint

rails postgres exclusion-constraint
by codesnips 3 tabs