Agile Web Development with Rails, Edition 4

27.1 Active Merchant 26.1 rack

26.2 rake

implement a custom rake task

edit lib/tasks/db_backup.rake
namespace :db do
 
  desc "Backup the production database"
  task :backup => :environment do
    backup_dir  = ENV['DIR'] || File.join(Rails.root, 'db', 'backup')
 
    source = File.join(Rails.root, 'db', "production.db")
    dest   = File.join(backup_dir, "production.backup")
 
    makedirs backup_dir, :verbose => true
 
    require 'shellwords'
    sh "sqlite3 #{Shellwords.escape source} .dump > #{Shellwords.escape dest}"
  end
 
end
rake db:backup
mkdir -p /home/rubys/git/awdwr/edition4/work-226-41/depot/db/backup
sqlite3 /home/rubys/git/awdwr/edition4/work-226-41/depot/db/production.db .dump > /home/rubys/git/awdwr/edition4/work-226-41/depot/db/backup/production.backup

cleanup (for HAML)

edit app/views/store/index.html.erb

remove scaffolding needed for standalone operation

edit app/store.rb
class StoreApp
  def call(env)
    x = Builder::XmlMarkup.new :indent=>2
 
    x.declare! :DOCTYPE, :html
    x.html do
      x.head do
        x.title 'Pragmatic Bookshelf'
      end
      x.body do
        x.h1 'Pragmatic Bookshelf'
 
        Product.all.each do |product|
          x.h2 product.title
          x << "      #{product.description}\n"
          x.p product.price
        end
      end
    end
 
    response = Rack::Response.new(x.target!)
    response['Content-Type'] = 'text/html'
    response.finish
  end
end

27.1 Active Merchant 26.1 rack