shilovk

#!/usr/bin/env bash
# run this script from your home folder
# sudo bash
curl -O http://downloads.mongodb.org/linux/mongodb-linux-x86_64-2.6.12.tgz

tar -zxvf mongodb-linux-x86_64-2.6.12.tgz
cp mongodb-linux-x86_64-2.6.12/bin/* /usr/local/bin
groupadd mongodb
useradd --system --no-create-home -g mongodb mongodb

shilovk

# frozen_string_literal: true

require 'rails_helper'

RSpec.configure do |config|
  config.use_transactional_fixtures = false

  # DatabaseCleaner settings
  config.before(:suite) do
    DatabaseCleaner.clean_with(:truncation)

shilovk

#!/bin/bash

main() {
  if [[ $(has_lvh_me) == 1 ]]; then
    echo 'lvh.me is already specified in your hosts file'
  else
    add_lvh_me
    echo 'lvh.me was added to your hosts file!'
  fi
  flush_dns_cache

shilovk

=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')

shilovk

Pry Cheat Sheet

• Youtube Tutorial 2013

Command Line

• pry -r ./config/app_init_file.rb - load your app into a pry session (look at the file loaded by config.ru)
• pry -r ./config/environment.rb - load your rails into a pry session

Debugger

shilovk

def is_vowel_elsif(letter)
  if letter == "a"
    true
  elsif letter == "e"
    true
  elsif letter == "i"
    true
  elsif letter == "o"
    true
  elsif letter == "u"

shilovk

hash = { 'foo' => 'bar' }

# Version 1
hash = Hash[hash.map { |k, v| [k.to_sym, v] }]

# Version 2
hash = hash.reduce({}) do |memo, (k, v)| 
  memo.tap { |m| m[k.to_sym] = v }
end

shilovk

class ApplicationController < ActionController::Base

  ...
  #Problem:
  #In rails 3.0.1+ it is no longer possible to do this anymore;
  #  rescue_from ActionController::RoutingError, :with => :render_not_found
  #
  #The ActionController::RoutingError thrown is not caught by rescue_from.
  #The alternative is to to set a catch-all route to catch all unmatched routes and send them to a method which renders an error
  #As in http://techoctave.com/c7/posts/36-rails-3-0-rescue-from-routing-error-solution

shilovk

<form action="<%= @pay_desc['mrh_url'] %>" method="post">
  <input type=hidden name=MrchLogin value="<%= @pay_desc['mrh_login'] %>">
  <input type=hidden name=OutSum value="<%= @pay_desc['out_summ'] %>">
  <input type=hidden name=InvId value="<%= @pay_desc['inv_id'] %>">
  <input type=hidden name=Desc value="<%= @pay_desc['inv_desc'] %>">
  <input type=hidden name=SignatureValue value="<%= @pay_desc['crc'] %>">
  <input type=hidden name=Shp_item value="<%= @pay_desc['shp_item'] %>">
  <input type=hidden name=IncCurrLabel value="<%= @pay_desc['in_curr'] %>">
  <input type=hidden name=Culture value="<%= @pay_desc['culture'] %>">
  <input type=submit value='Оплатить'>

shilovk

# config/routes.rb

YandexKassaIntegration::Application.routes.draw do
  # ...
  scope '/yandex_kassa' do
    controller 'yandex_kassa', constraints: { subdomain: 'ssl' } do
      post :check
      post :aviso
      get :success
      get :fail