jcrisp

 = form_for(@order, url:order_url, method:'POST') do |order_form|
    = error_messages_for :order
    
    = order_form.text_field :name
    And more parent form fields...
   
    = order_form.fields_for :order_lines, @order.order_lines do |lines_form|
      = lines_form.text_field :item_number
      And more child form fields..

jcrisp

class Order
  include ActiveModel::Model
  
  attr_accessor :order_lines, :name

  def initialize(*params)
    self.order_lines = []
    super
  end

jcrisp

class Application < Rails::Application
  # ... other config ...
  
  # no error div on labels
  add_error_div_proc = ActionView::Base.field_error_proc
  config.action_view.field_error_proc = ->(html_tag, instance) { 
    html_tag && html_tag.start_with?("<label") ? html_tag : add_error_div_proc.call(html_tag, instance) }

end

jcrisp

mysql> SHOW GLOBAL VARIABLES LIKE 'innodb%';
+-------------------------------------------+------------------------+
| Variable_name                             | Value                  |
+-------------------------------------------+------------------------+
| innodb_adaptive_flushing                  | ON                     |
| innodb_adaptive_flushing_lwm              | 10                     |
| innodb_adaptive_hash_index                | ON                     |
| innodb_adaptive_hash_index_parts          | 8                      |
| innodb_adaptive_max_sleep_delay           | 150000                 |
| innodb_api_bk_commit_interval             | 5                      |

jcrisp

RSpec.describe HandleBadEncodingMiddleware do

  let(:app) { double() }
  let(:middleware) { HandleBadEncodingMiddleware.new(app) }

  it "request with query string is unchanged" do
    expect(app).to receive(:call).with("PATH" => "/some/path", "QUERY_STRING" => "name=fred")
    middleware.call("PATH" => "/some/path", "QUERY_STRING" => "name=fred")
  end

jcrisp

class HandleBadEncodingMiddleware
  def initialize(app)
    @app = app
  end

  def call(env)
    begin
      Rack::Utils.parse_nested_query(env['QUERY_STRING'].to_s)
    rescue Rack::Utils::InvalidParameterError
      env['QUERY_STRING'] = ''

jcrisp

sudo apt-get install libapache2-mod-xsendfile
sudo a2enmod xsendfile

# Add to virtual host
sudo vi /etc/apache2/sites-available/mysite.conf
  XSendFile On
  XSendFilePath /var/www/myapp/shared/pdfs

sudo service apache2 restart

jcrisp

task :deploy_pdfs do
  on roles(:app) do |h|
    execute "mkdir -p #{remote_shared_pdfs_dir}"
    rsync_pdfs("#{h.username}@#{h.hostname}")
  end
end

task :delete_pdfs do
  on roles(:app) do
    execute "rm #{remote_shared_pdfs_dir}/*"

jcrisp

#!/usr/bin/env ruby
require 'active_support/inflector'
require 'active_support/core_ext/string/inflections'

begin
  File.exist? './config/environment.rb'
rescue LoadError
  puts "*** rails_refactor needs to be run from the root of a Rails 3 webapp ***"
  exit
end