Oleg Nikitashin olegnikitashin

## example_activejob.rb
class MyJob < ActiveJob::Base
  queue_as :urgent

  rescue_from(NoResultsError) do
    retry_job wait: 5.minutes, queue: :default
  end

  def perform(*args)
    MyService.call(*args)
  end

## arel_multiple_cte.rb
# from_cte_sql = ::Namespace::From.where_clause
# ..


from_table = Arel::Table.new(:from_lane)
to_table = Arel::Table.new(:to_lane)
rates_table = Arel::Table.new(:rates)

rates_table
  .join(from_table).on(rates_table[:from_id].eq(from_table[:id]))

## support_cyrillic.sh
$ brew install openssl readline
$ CONFIGURE_OPTS="--with-openssl-dir=`brew --prefix openssl` --with-readline-dir=`brew --prefix readline`" rbenv install 2.0.0-p353

## gist:d93791efee42a586f8af7c98dede42b2
_rollbarConfig = {
  accessToken: 'your token',
  captureUncaught: true,
  payload: {
    environment: 'production',
  },
  checkIgnore: function(isUncaught, args, payload) {
    if (isUncaught && args[0] && args[0].indexOf('Script error') === 0) {
      // ignore
      return true;

## gist:8827427466c4b38a35539781537c4f4f
pg_restore --clean --no-acl --no-owner -d <database> -U <user> <filename.dump>

## gist:00915130f373e3394696a0579de75a0d
# Help nginx+passenger serve static index pages

# Site specific config
server {
  listen 80;
  server_name domain.com;
  index index.html;
  access_log logs/appname.access.log;
  error_log logs/appname.error.log;

## mandrillapp_invalid_sender_characters.rb
# I was encountering this exception
# Net::SMTPServerBusy: 401 4.1.7 Bad sender address syntax
# First I searched to see if there's any documentation around this issue,
# didn't find anything, so I wrote this snippet to find those invalid characters

require 'mail'

Mail.defaults do
  delivery_method :smtp, {
    :port      => 25,

## unobtrusive_poller.js.coffee
###
Unobtrusive JavaScript solution for polling in a Rails application

Introduction:

Add a polling-placeholder wrapper div to any partial and add a data attribute
named poll that should be equal to "true" until you want to stop polling.
The default polling frequency will be used unless you provide an "interval" data
attribute which should be the number of milliseconds to use for the interval.

## benchmark_exists_method.rb
# new method
def exists?(item)
  basket_items.exists?(source_id: item.id)
end

# old method
def exists_two?(item)
  basket_items.select { |curr_item| curr_item.source_id == item.id }.any?
end

## arrayhash.rb
require 'benchmark'
require 'set'

ranges = [ "a".."z", "A".."Z", 0..9 ]
n = ARGV[0].to_i || 100

Benchmark.bm do |x|
  x.report "array" do
    n.times do
      array = []
	class MyJob < ActiveJob::Base
	queue_as :urgent

	rescue_from(NoResultsError) do
	retry_job wait: 5.minutes, queue: :default
	end

	def perform(*args)
	MyService.call(*args)
	end
	# from_cte_sql = ::Namespace::From.where_clause
	# ..


	from_table = Arel::Table.new(:from_lane)
	to_table = Arel::Table.new(:to_lane)
	rates_table = Arel::Table.new(:rates)

	rates_table
	.join(from_table).on(rates_table[:from_id].eq(from_table[:id]))
	$ brew install openssl readline
	$ CONFIGURE_OPTS="--with-openssl-dir=`brew --prefix openssl` --with-readline-dir=`brew --prefix readline`" rbenv install 2.0.0-p353
	_rollbarConfig = {
	accessToken: 'your token',
	captureUncaught: true,
	payload: {
	environment: 'production',
	},
	checkIgnore: function(isUncaught, args, payload) {
	if (isUncaught && args[0] && args[0].indexOf('Script error') === 0) {
	// ignore
	return true;
	# Help nginx+passenger serve static index pages

	# Site specific config
	server {
	listen 80;
	server_name domain.com;
	index index.html;
	access_log logs/appname.access.log;
	error_log logs/appname.error.log;
	# I was encountering this exception
	# Net::SMTPServerBusy: 401 4.1.7 Bad sender address syntax
	# First I searched to see if there's any documentation around this issue,
	# didn't find anything, so I wrote this snippet to find those invalid characters

	require 'mail'

	Mail.defaults do
	delivery_method :smtp, {
	:port => 25,
	###
	Unobtrusive JavaScript solution for polling in a Rails application

	Introduction:

	Add a polling-placeholder wrapper div to any partial and add a data attribute
	named poll that should be equal to "true" until you want to stop polling.
	The default polling frequency will be used unless you provide an "interval" data
	attribute which should be the number of milliseconds to use for the interval.
	# new method
	def exists?(item)
	basket_items.exists?(source_id: item.id)
	end

	# old method
	def exists_two?(item)
	basket_items.select { \|curr_item\| curr_item.source_id == item.id }.any?
	end
	require 'benchmark'
	require 'set'

	ranges = [ "a".."z", "A".."Z", 0..9 ]
	n = ARGV[0].to_i \|\| 100

	Benchmark.bm do \|x\|
	x.report "array" do
	n.times do
	array = []