jhass

AllCops:
  RunRailsCops: true

# Commonly used screens these days easily fit more than 80 characters.
Metrics/LineLength:
  Max: 120

# Too short methods lead to extraction of single-use methods, which can make
# the code easier to read (by naming things), but can also clutter the class
Metrics/MethodLength: 

siannopollo

pluck_in_batches

Sometimes you need to iterate over a ton of items and you don't want the overhead of creating AR objects out of all of them. Hell, you only need a few things! Well, #pluck has your back.

But what if you want to iterate over many tonnes of items?

Pluck in batches to the rescue!

Enjoy!

tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






\

dhh

class GroupersController < ApplicationController::Base
  def create
    @grouper = Grouper.new(leader: current_member)

    if @grouper.save
      ConfirmedGrouperEmails.new(@grouper).deliver
      AssignBarForGrouper.enqueue(@grouper.id)

      redirect_to home_path
    else

justinweiss

# Call scopes directly from your URL params:
#
#     @products = Product.filter(params.slice(:status, :location, :starts_with))
module Filterable
  extend ActiveSupport::Concern

  module ClassMethods
    
    # Call the class methods with names based on the keys in <tt>filtering_params</tt>
    # with their associated values. For example, "{ status: 'delayed' }" would call 

ziadoz

<form action="." method="post">
        <noscript>You must <a href="http://www.enable-javascript.com" target="_blank">enable JavaScript</a> in your web browser in order to pay via Stripe.</noscript>

        <input 
            type="submit" 
            value="Pay with Card"
            data-key="PUBLISHABLE STRIPE KEY"
            data-amount="500"
            data-currency="cad"
            data-name="Example Company Inc"

practicingruby

## INHERIT from a base class
# -----------------------------------------

class Product < ActiveRecord::Base
  belongs_to :category

  def self.lookup(item_code)
    where(:item_code => item_code).first
  end
end

brobertsaz

Ubuntu 12.04, Ruby, Rails, Nginx, Unicorn and git-deploy

In the seemlingly endless search for the actual correct and easy way to deploy a Rails app, we have tried several ways. We tried out using Apache2 and running a cluster of Thin servers. With the built in threading of Puma we decided to use it with Nginx.

Server Setup

• Create new server
• Login to new server
  • ssh root@IPaddress (you can also use the domain name if you have the DNS setup already)
  • accept the RSA key

wrburgess

##Refs

• wkhtmltopdf
• wicked_pdf
• Blog: Generate PDFs in Rails 3.2

Install wicked_pdf

Add to Gemfile: gem 'wicked_pdf'

lexmag

//= require jquery
//= require jquery_ujs

$(function() {
  var source = new EventSource('/stream');
  source.addEventListener('counter', function(e) {
    $('body').after(e.data + '<br />');
  });
});