sergii

require "rails_helper"

feature "User signs up" do
  scenario "and is added to the roster" do
    visit root_path
    fill_in "Name", with: "Mickey Mouse"
    fill_in "Experience", with: "Junior"
    click_button "Sign Me Up!"

    expect(page).to have_text("Mickey Mouse")

sergii

# Create and restore backups on PostgreSQL (tested on 9.2 and 9.3)

# create database backup
PGPASSWORD="XXX" pg_dump --no-owner --no-acl -U USER DATABASE -h HOST -F t > output_file.tar

# create database backup (heroku)
heroku pgbackups:capture
heroku pgbackups # show stored backups (assuming a117 is the desired one)
heroku pgbackups:url a117 # => it retrieves dump url on AWS S3

sergii

Sort_by ruby method - sorting using multiple attributes.

I guess everyone knows that feeling when you struggle with a codewars kata, create (or even not!) a looong solution, then you check the solutions of of others and go whaaaaaaaat -- they did it in one line?

This is how I felt today and this is how I refreshed my memory of Ruby's sort_by method.

Task:

sergii

Rails Active Storage Cheatsheet

• Rails Active Storage Cheatsheet
  • Install Active Storage
  • Usage
    • Model
    • Controller
    • Views (in ERB)
    • Display Image and its variants or Preview (PDF or Video)
• Install this libraries first

sergii

How to reset PG Database on Heroku?

• Step 1: heroku restart
• Step 2: heroku pg:reset DATABASE (no need to change the DATABASE)
• Step 3: heroku run rake db:migrate
• Step 4: heroku run rake db:seed (if you have seed)

One liner

heroku restart; heroku pg:reset DATABASE --confirm APP-NAME; heroku run rake db:migrate

sergii

# Additional translations at https://github.com/scambra/devise_invitable/wiki/I18n

ru:
  devise:
    failure:
      invited: 'У вас есть непринятое приглашение, подтвердите его чтобы продолжить создание аккаунта.'
    invitations:
      send_instructions: 'Письмо с приглашением было отправлено на %{email}.'
      invitation_token_invalid: 'Неверный токен приглашения.'
      updated: 'Ваш пароль успешно сохранен. Вы вошли в систему.'

sergii

require "resolv"

class Model < ActiveRecord::Base
  validates :ip_address, format: { with: Resolv::IPv4::Regex }
  validates :mac_address, format: { with: /\A([0-9A-F]{2}[-:]){5}([0-9A-F]{2})\z/ }
end

sergii

# Implement a function called make_acronym that returns the first letters 
# of each word in a passed in string. Make sure the letters returned are 
# uppercase.

# If the value passed in is not a string return 'Not a string'
# If the value passed in is a string which contains only characters 
# other than spaces and alphabet letters, return 'Not letters'

def make_acronym(input_string)
  return nil unless input_string

sergii

select
  *
from
  tables
join (
  select table_id
  from books
  where rating = 1
) as t1 on t1.table_id = tables.table_id
join (

sergii

class PaymentsController < AuthenticatedController
  before_action { authorize!(roles: [:superuser], abilities: [:charge_user, :manage_payments]) }
end

class AuthenticatedController < ApplicationController
  def authorize!(roles: [], abilities: [])
    # current
    (roles & current_user.roles).any? || (abilities & current_user.abilities).any?
    
    # desired