26.2 rake 25.3 Managing Dependencies with Bundler
edit store.ru
require 'rubygems'
require 'bundler/setup'
require './app/store'
use Rack::ShowExceptions
map '/store' do
run StoreApp.new
end
edit app/store.rb
require 'builder'
require 'active_record'
ActiveRecord::Base.establish_connection(
adapter: 'sqlite3',
database: 'db/development.sqlite3')
class Product < ActiveRecord::Base
end
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
edit config/routes.rb
require './app/store'
Rails.application.routes.draw do
match 'catalog' => StoreApp.new, via: :all
get 'admin' => 'admin#index'
controller :sessions do
get 'login' => :new
post 'login' => :create
delete 'logout' => :destroy
end
resources :users
resources :products do
get :download, on: :member
get :who_bought, on: :member
end
scope '(:locale)' do
resources :orders
resources :line_items
resources :carts
root 'store#index', as: 'store_index', via: :all
end
end
get /catalog
Powerful, Effective, and Efficient Full-Stack Web Development As a Rails developer, you care about user experience and performance, but you also want simple and maintainable code. Achieve all that by embracing the full stack of web development, from styling with Bootstrap, building an interactive user interface with AngularJS, to storing data quickly and reliably in PostgreSQL. Take a holistic view of full-stack development to create usable, high-performing applications, and learn to use these technologies effectively in a Ruby on Rails environment.
45.0
Native Apps, Multiple Platforms Answer the question “Can we build this for ALL the devices?” with a resounding YES. This book will help you get there with a real-world introduction to seven platforms, whether you’re new to mobile or an experienced developer needing to expand your options. Plus, you’ll find out which cross-platform solution makes the most sense for your needs.
26.0
Why Ruby Is Slow, and How to Fix It You don’t have to accept slow Ruby or Rails performance. In this comprehensive guide to Ruby optimization, you’ll learn how to write faster Ruby code—but that’s just the beginning. See exactly what makes Ruby and Rails code slow, and how to fix it. Alex Dymo will guide you through perils of memory and CPU optimization, profiling, measuring, performance testing, garbage collection, and tuning. You’ll find that all those “hard” things aren’t so difficult after all, and your code will run orders of magnitude faster.
46.0