zismailov

require 'benchmark/ips'

Benchmark.ips do |x|
  x.report('#exists?') { User.where(id: 1).exists? }
  x.report('#any?') { User.where(id: 1).any? }
  x.report('#present?') { User.where(id: 1).present? }

  x.compare!
end

zismailov

# Tasks for managing Unicorn instances of a Rails application.
# Compatible with Ruby >= 1.9.2 and Rails >= 2 .
# Unicorn signals: http://unicorn.bogomips.org/SIGNALS.html

namespace :unicorn do

  class UnicornPIDError < StandardError; end

  def rails_env
    Rails.env

zismailov

Setup

Replace IRB with Pry (in your Gemfile) and Byebug with pry-byebug.

gem 'pry-rails', group: [:development, :test]
gem 'pry-byebug', group: [:development, :test]

Using PRY

zismailov

Installing the Postgres PostGIS extension on OSX

For reference: http://postgis.net/install

If you don’t already have PG installed

The most reliable way to get PostGIS on OSX is to download and install Postgres.app. Great for development and testing. Do not mix with other installations. Select the extension when prompted.

If you already have PG installed

zismailov

[2] pry(main)> Product.last(10).map{|p| p.variants}.flatten
  Product Load (1.1ms)  SELECT  "products".* FROM "products"  ORDER BY "products"."id" DESC LIMIT 10
  Variant Load (96.5ms)  SELECT "variants".* FROM "variants" WHERE "variants"."nomenclature_id" = 247664 AND "variants"."archived_at" IS NULL  ORDER BY order_weight  [["nomenclature_id", 247664]]
  Variant Load (0.6ms)  SELECT "variants".* FROM "variants" WHERE "variants"."nomenclature_id" = 247665 AND "variants"."archived_at" IS NULL  ORDER BY order_weight  [["nomenclature_id", 247665]]
  Variant Load (0.3ms)  SELECT "variants".* FROM "variants" WHERE "variants"."nomenclature_id" = 247666 AND "variants"."archived_at" IS NULL  ORDER BY order_weight  [["nomenclature_id", 247666]]
  Variant Load (0.6ms)  SELECT "variants".* FROM "variants" WHERE "variants"."nomenclature_id" = 247667 AND "variants"."archived_at" IS NULL  ORDER BY order_weight  [["nomenclature_id", 247667]]
  Variant Load (0.5ms)  SELECT "variants".* FROM "variants" WHERE "variants"."nome

zismailov

var curr_domain = window.location.href.split('//')[1].split('/')[0];

var outside_links = [];
var links = document.getElementsByTagName("a");
for(var i=0; i<links.length; i++) {
  var res = links[i].href.split('//')[1];
  if(typeof res == 'undefined') continue;
  if(res.split('/')[0] == curr_domain) continue;
  outside_links.push('http://' + res);
}

zismailov

How to make awesome pry for Rails

Tested on Rails 5.1, for development, test and production (!).

At the top of your Gemfile (don't add to :development or :test):

• Add gem 'pry' to your Gemfile
• Add gem 'awesome_print' to your Gemfile

Make sure you updated your application.rb (not development.rb):

zismailov

class Attachment < ActiveRecord::Base
  mount_uploader :attachment, AttachmentUploader

  # Associations

  belongs_to :attached_item, polymorphic: true

  # Validations

  validates_presence_of :attachment

zismailov

/**
* Jesse Weisbeck's Crossword Puzzle (for all 3 people left who want to play them)
*
*/
(function($){
	$.fn.crossword = function(entryData) {
			/*
				Qurossword Puzzle: a javascript + jQuery crossword puzzle
				"light" refers to a white box - or an input

zismailov

require 'benchmark/ips'

GITHUB_COM = %r{https?://(?:www\.)?github\.com}i

Benchmark.ips do |x|
  x.report('with o') { %r{\A#{GITHUB_COM}/([^/]+)/?\z}o }
  x.report('without o') { %r{\A#{GITHUB_COM}/([^/]+)/?\z} }
  x.compare!
end