khusnetdinov

require "fiber"

f1 = Fiber.new { |f2| f2.resume Fiber.current; while true; puts "A"; f2.transfer; end }
f2 = Fiber.new { |f1| f1.transfer; while true; puts "B"; f1.transfer; end }

f1.resume f2

khusnetdinov

#SOLID Principles with ruby examples

##SRP - Single responsibility principle A class should have only a single responsibility.

Every class should have a single responsibility, and that responsibility should be entirely encapsulated. All its services should be narrowly aligned with that responsibility, this embrace the high cohesion.

##OCP - Open/closed principle Software entities should be open for extension, but closed for modification.

khusnetdinov

# db/migrate/XXXXXXXXXXXXX_add_authentication_token_to_users.rb

class AddAuthenticationTokenToUsers < ActiveRecord::Migration
  def change
    add_column :users, :authentication_token, :string

    add_index :users, :authentication_token, :unique => true
  end
end

khusnetdinov

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

khusnetdinov

require 'net/http'

def post_xml url_string, xml_string
  uri = URI.parse url_string
  request = Net::HTTP::Post.new uri.path
  request.body = xml_string
  request.content_type = 'text/xml'
  response = Net::HTTP.new(uri.host, uri.port).start { |http| http.request request }
  response.body
end

khusnetdinov

1. Gemfile

gem 'browserify-rails', '1.5.0' # until fix: https://github.com/browserify-rails/browserify-rails/issues/101
gem 'react-rails'

Browserify-rails allows to use browserify within assets pipeline. React-rails is here only to allow to use #react_component (and thus, prerendering).

Note that jquery-rails can be removed from Gemfile, the npm version of jquery and jquery-ujs will be used instead.

khusnetdinov

  def index
    @products = ProductsSearch.new { |instance| instance.per_page = 27 }.search do |query|
      query.order()
    end
  end

khusnetdinov

# source 'https://www.npmjs.com/'
assets_path 'assets/javascripts'

asset 'angular',              '1.4.3'                                           # Angular
asset 'angular-ui-bootstrap', '0.13.3'                                          # Booustrap UI
asset 'Chart.js',             '1.0.2'                                           # Chart.js
asset 'angular-chart.js',     '0.7.3'                                           # Directives

khusnetdinov

class Dashboard::StoreProductsController < ApplicationController
  before_filter :require_login
  before_action :set_auction_durations, only: [:index, :edit]

  AUCTION_DURATIONS = [['1 day', 24], ['3 days', 72], ['7 days', 168], ['30 days', 720], ['90 days', 2160]]

  def index
    @products = current_user.products.includes(:order)

    @scope = params.fetch(:scope, 'all')

khusnetdinov

    private static Boolean checkClonedFilesChecksum(String source, String result) throws IOException, NoSuchAlgorithmException {
        String sourceChecksum = getChecksum(source);
        String resultChecksum = getChecksum(result);
        System.out.println("Source checksum: " + sourceChecksum);
        System.out.println("Result checksum: " + resultChecksum);
        return sourceChecksum.equals(resultChecksum);
    }

    private static String getChecksum(String fileName) throws IOException, NoSuchAlgorithmException {
        MessageDigest msg = MessageDigest.getInstance("SHA1");