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Michael Guterl mguterl

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theorygeek / association_loader.rb
Last active Mar 21, 2021
Preloading Associations with graphql-batch
View association_loader.rb
# frozen_string_literal: true
class AssociationLoader < GraphQL::Batch::Loader
attr_reader :klass, :association
def initialize(klass, association)
raise ArgumentError, "association to load must be a symbol (got #{association.inspect})" unless association.is_a?(Symbol)
raise ArgumentError, "cannot load associations for class #{}" unless klass < ActiveRecord::Base
raise TypeError, "association #{association} does not exist on #{}" unless klass.reflect_on_association(association)
@klass = klass
View gist:598fa75e22bdfa44cf47

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

squarism /
Last active Jul 16, 2019
English is Terrible

I'm sad that the world has adopted English as the language of science and business. It's insane. It's like adopting a psychotic murdering robot to clean your house. English is a mutt language that has never been redone, reworked or even designed. It's a combination of ice cream, meatballs and wine. All fine things by themselves but terrible when combined.

There are more English learners than there are native English speakers in the world. I'm really sorry world. I'm just so so sorry that you have to learn Germanic-French-Latin nonsense. It's terrible. It's a terrible language.

Update: I wrote this before I read Mother Tongue by Bill Bryson. It's fantastic and a better write-up of what I'm trying to say here.

Prepositional phrases.

They make no sense. There's so much context and they are literally confusing.

View react-app-file-structure
├── actions
├── stores
├── views
│   ├── Anonymous
│   │   ├── __tests__
│   │   ├── views
│   │   │   ├── Home
│   │   │   │   ├── __tests__
│   │   │   │   └── Handler.js
mattvv / credit_card_helper.rb
Created Mar 17, 2014
Include this in your test_helper.rb to stub your stripe checkout.js
View credit_card_helper.rb
#this is a very simple, work in progress helper method for stubbing the stripe checkout.js
#this creates a fake server that will generate stripe token as if it's coming from stripe. So we can test credit card input
class FakeStripe < Sinatra::Base
def self.boot
instance = new { |server| server.boot }
get '/checkout.js' do
View Organizing your

Organizing your codes

A few notes on how I organize my code lately. It's not the sexiest topic in the world but it matters, especially given that I keep about 160 repos cloned on my system at any given time.

Directory Layout

I've spent a couple years now trying to avoid the urge to mirror my personal code working space after github repo pathnames, but I'm a weak man and have given in.

When I want to clone a repo, I'll give it a directory matching the pattern ~/code/<owner>/<repo>.

branneman /
Last active May 14, 2021
Better local require() paths for Node.js

Better local require() paths for Node.js


When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

xpepper / download_rubytapas.rb
Last active Jan 1, 2019
This script will download all the published rubytapas. Each episode, with all the attachments, will be downloaded in a folder named after the episode number. For example, in the folder "64" will be downloaded: 064-yield-or-enumerate.html, 064-yield-or-enumerate.mp4, 064-yield-or-enumerate.rb You need to set your credentials (username and passwor…
View download_rubytapas.rb
# username = "my_username"
# pwd = "my_password"
# target_path = "my_target_path"
# saving auth cookie
system %Q{wget --save-cookies /tmp/cookie.txt --keep-session-cookies --post-data "username=#{username}&password=#{pwd}" -O - \}
(25..600).each do |i|
View associations.rb
# use inverse_of to 'just work'
class User < ActiveRecord::Base
has_many :contributions, inverse_of: :user
has_many :posts, through: :contributions
class Post < ActiveRecord::Base
has_many :contributions, inverse_of: :post
has_many :contributors, through: :contributions,
source: :user
skwp / watch_listing.rb
Last active Dec 15, 2015
Hexagonal extraction of a controller action from, showing reuse between controller and Grape/Roar based API. This is sample code stripped down to the essentials and is not guaranteed to work as-is :)
View watch_listing.rb
class Reverb::Actions::WatchListing
def, product, listener)
if product.owner?(user)
Reverb::Analytics.track(user, :watch_product) # FIXME, this doesn't belong here
user.user_watch_products.create(:product_id =>