jaydorsey

# A lot of times, dates will be handled like this:
# 
# parsed_date = Date.parse(maybe_date) rescue nil
#
# This is an alternative, faster strategy that doesn't rely on a catch-all, less performant
# (in error conditions at at least; backtraces aren't generated), rescue behavior
def parse_date_string(maybe_date)
  return if maybe_date.blank?

  catch(:date) do

jaydorsey

---

# NOTE: This was, for some reason, way too hard for me to piece together quickly
services:
  opensearch:
    container_name: opensearch
    image: opensearchproject/opensearch:latest
    environment:
      - node.name=opensearch
      - cluster.name=opensearch-docker-cluster

jaydorsey

# frozen_string_literal: true

# Brief overview of ActiveRecord preload, eager_load, includes, and joins

# TODO: Add a joins/eager_load example
# TODO: Add actual SQL output for every single one of these

# id
# email
class Foo < ApplicationRecord

jaydorsey

# frozen_string_literal: true

# This custom matcher is designed to make record changes easy
#
# Without this matcher you'd typically do one of:
#
#   # I believe these won't always work, depends on object reloading, what is changed, how it's changed,
#   # the order things got loaded, etc.
#   expect { update }.to change(foo, :method)...
#   expect { update }.to change { foo.method }...

jaydorsey

RSpec.describe MyClass do
  let(:my_value) { 1 }
  let(:other_value) { 2 }

  it 'does a thing' do
    expect(my_value).to eq(other_value) # failure condition, something flakey though

  rescue RSpec::Expectations::ExpectationNotMetError
    $ERROR_INFO.message << <<~MSG

jaydorsey

Ruby is expecting a Hash, but you forgot something (maybe a key name?)

Example:

# wrong
foo: { # Start of the new hash
  :bar # You're missing your key OR value
}

jaydorsey

# frozen_string_literal: true

# 1. Put this in your spec folder as spec/flakey_spec.rb
# 2. Run it with `rspec spec/flakey_spec.rb`
#
# Assumptions:
#
#   1. You're using rails, rspec, factory_bot, faker
#   2. You have a standard-ish User model (has create_at, updated_at, etc. integer ID primary key, etc)
#   3. User has a last_name field/column/attribute

jaydorsey

# frozen_string_literal: true

# I often find myself wanting to codify relationships/associations in a factory by default, so the
# factory doesn't require myself or other engineers to retain the knowledge about the complex relationships
# and define those relationships in every part of the test
#
# In this contrived example, our models are tenant-aware via a company_id FK on each model:
#   - Widget belongs_to a company
#   - User belongs to a company 
#   - A widget has a creator; the creator of the widget and the widget itself must belong to the same company

jaydorsey

# app/models/user.rb
#
class User
  after_create :foo
  
  private
  
  def foo
    # ..something we don't do very often
  end

jaydorsey

For some reason, I couldn't get the annotate gem to remove the file annotations

I used SublimeText w/ the following regex:

Find: `(?s)# == Schema Information\n(.*?)\n((# :nodoc:\n)?class)`
Replace: `class` (just adds back what I grabbed above)