Code snips by codesnips

erb

<nav class="site-nav" data-controller="preload">
  <ul>
    <li>
      <%= link_to "Dashboard", dashboard_path,
            class: "nav-link",
            data: { turbo_preload: true } %>

Speed up perceived performance with Turbo preload links

rails hotwire turbo

by codesnips 3 tabs

erb

<h1>Catalog</h1>

<%= turbo_frame_tag "products" do %>
  <div class="product-grid" data-controller="frame">
    <% @products.each do |product| %>
      <%= render "products/card", product: product %>

Pagination links that escape a Turbo Frame with _top

rails hotwire turbo

by codesnips 4 tabs

ruby

class WizardsController < ApplicationController
  STEPS = %w[account profile confirm].freeze

  before_action :set_step

  def show

Multi-step wizard navigation with Turbo Frames

rails hotwire turbo

by codesnips 4 tabs

ruby

class Recipe < ApplicationRecord
  has_many :ingredients, inverse_of: :recipe, dependent: :destroy

  accepts_nested_attributes_for :ingredients,
    allow_destroy: true,
    reject_if: :all_blank

Add/remove nested fields with Stimulus (no cocoon)

rails hotwire stimulus

by codesnips 4 tabs

erb

<%# Subscribe every viewer of this post to its broadcasts %>
<%= turbo_stream_from @post %>

<%# Update the acting user's button to reflect the toggle %>
<%= turbo_stream.replace dom_id(@post, :like_button) do %>
  <%= render "posts/like_button", post: @post %>

Live counter updates with Turbo Streams (likes, votes)

rails hotwire turbo

by codesnips 4 tabs

erb

<div class="bookmarks">
  <h1>Saved Bookmarks</h1>

  <table>
    <tbody id="bookmarks">
      <%= render partial: "bookmark", collection: @bookmarks %>

Link that submits DELETE with Turbo (data-turbo-method)

rails hotwire turbo

by codesnips 4 tabs

ruby

module TurboResponder
  extend ActiveSupport::Concern

  private

  def respond_with_turbo(resource, on_success:, partial:, notice: nil)

A reusable respond_to block for turbo_stream + html

rails hotwire turbo

by codesnips 3 tabs

ruby

class SubscriptionsController < ApplicationController
  before_action :set_subscription, only: %i[show destroy]

  def new
    @subscription = Subscription.new
  end

Use 303 See Other after POST in Turbo flows

rails hotwire turbo

by codesnips 3 tabs

ruby

module LayoutlessTurboFrame
  extend ActiveSupport::Concern

  included do
    layout :layout_for_turbo
  end

Render without layout for Turbo Frame requests

rails hotwire turbo

by codesnips 4 tabs

ruby

module TimeAgoHelper
  def time_ago_tag(time, locale: I18n.locale, **options)
    return if time.blank?

    time = time.to_time
    fallback = l(time, format: :short)

Time-ago formatting with Stimulus (no heavy date libs)

rails hotwire stimulus

by codesnips 3 tabs

erb

<!DOCTYPE html>
<html>
  <head>
    <title><%= content_for(:title) || "App" %></title>
    <%= csrf_meta_tags %>
    <%= csp_meta_tag %>

Importmap setup for Stimulus controllers (Rails 7 style)

rails hotwire stimulus

by codesnips 4 tabs

erb

<%= form_with model: @document, data: { controller: "upload" } do |form| %>
  <div class="field">
    <%= form.label :file, "Attach a document" %>
    <%= form.file_field :file,
          direct_upload: true,
          data: { upload_target: "input" } %>

Active Storage direct upload progress with Stimulus

rails hotwire stimulus

by codesnips 3 tabs