Code snips by codesnips

ruby

class CommentsController < ApplicationController
  before_action :set_post

  def create
    @comment = @post.comments.build(comment_params)

System test: asserting Turbo Stream responses

rails hotwire turbo

by codesnips 4 tabs

ruby

class ArticlesController < ApplicationController
  before_action :set_article, only: %i[edit update]

  def new
    @article = Article.new
  end

Turbo-friendly 422 responses for invalid forms

rails hotwire turbo

by codesnips 3 tabs

erb

<h1>Create your account</h1>

<%= render "error_summary", record: @user %>

<%= form_with model: @user, url: signups_path do |f| %>
  <div class="field">

Update an error summary area via turbo_stream.update

rails hotwire turbo

by codesnips 3 tabs

ruby

module ApplicationCable
  class Connection < ActionCable::Connection::Base
    identified_by :current_user

    def connect
      self.current_user = find_verified_user

ActionCable channel that streams Turbo updates safely

rails hotwire turbo

by codesnips 4 tabs

ruby

class Import < ApplicationRecord
  include ActionView::RecordIdentifier

  enum status: { pending: 0, processing: 1, completed: 2, failed: 3 }

  has_one_attached :file

Broadcast job progress updates to a Turbo Frame

rails hotwire turbo-streams

by codesnips 4 tabs

ruby

class CommentsController < ApplicationController
  before_action :set_post

  def create
    @comment = @post.comments.build(comment_params)

Turbo Streams fallback to HTML for older clients

rails hotwire turbo-streams

by codesnips 4 tabs

erb

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

Disable Turbo Drive on external links

rails hotwire turbo

by codesnips 3 tabs

ruby

class TurboFailureApp < Devise::FailureApp
  def respond
    if turbo_request?
      redirect_for_turbo
    else
      super

Handle 401 responses in Turbo by forcing a full redirect

rails hotwire turbo

by codesnips 4 tabs

javascript

import * as Turbo from "@hotwired/turbo";

function metaContent(name) {
  const el = document.querySelector(`meta[name="${name}"]`);
  return el ? el.getAttribute("content") : null;
}

Attach custom headers to Turbo fetch requests (stimulus-free)

rails hotwire turbo

by codesnips 3 tabs

css

.turbo-progress-bar {
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--progress-start, #6366f1),
    var(--progress-end, #ec4899)

Customize Turbo progress bar styling with Tailwind/CSS

rails hotwire turbo

by codesnips 3 tabs

erb

<nav id="main-navbar"
     data-turbo-permanent
     data-controller="navbar"
     data-navbar-menu-open-value="false"
     class="navbar">
  <div class="navbar-inner">

Keep navbar state across Turbo navigations with data-turbo-permanent

rails hotwire turbo

by codesnips 3 tabs

javascript

import { StreamActions } from "@hotwired/turbo"

StreamActions.highlight = function () {
  const className = this.getAttribute("data-highlight-class") || "flash-highlight"
  const duration = parseInt(this.getAttribute("data-highlight-duration"), 10) || 1500

Custom turbo_stream action tag: highlight an updated element

rails hotwire turbo

by codesnips 4 tabs