krisleech

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"
  gem "rspec"
end

BoomError = Class.new(StandardError)

RSpec.describe 'rescue arguments' do

krisleech

# app/models/my_worker.rb
class MyWorker
  include Carbon::Worker
  
  BoomError = Class.new(StandardError)
  
  retry_without_notification BoomError
  
  def call(attributes)
    raise BoomError

krisleech

# Prevent other processes/threads from updating rows, uses "FOR UPDATE" lock by default:

Recruitment::CpmsTotal.transaction do
  totals = Recruitment::CpmsTotal.not_sent.lock.each # [1]
  sleep(40)
end


# [1] each forces query to happen, #all on its own does not.

krisleech

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"  
  gem "activerecord"
  gem "sqlite3"
end

require "active_record"
require "logger"

krisleech

Tuesday

Time	BG (mmol/l)
13:43	4.4
15:00	4.8
16:44	4.2
19:30	6.9
22:25	5.1

krisleech

# Lets say we have a Book model and we want to fetch some data about the book from an API and store it in the model.
# A Book needs an identifier before it can be fetched from the API. Not all books have an identifier, e.g. it may not have been entered yet.

# Do we silently return in FetchFromApi when the book has no identifer:

class FetchFromApi
  def call(book)
    return unless record.identifier.present?
    
    # do API call and update record

krisleech

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'
  gem 'active_record'
  gem 'sqlite3'
end

krisleech

if study.require_participant_type?
  packed_permutations << Recruitment::ParticipantType.pluck(:identifier).append(nil)
else
  packed_permutations << [].append(nil)
  # or packed_permutations << [nil] (same, but less symmetry)
end

# or

packed_permutations << (study.require_participant_type? ? Recruitment::ParticipantType.pluck(:identifier) : []).append(nil)

krisleech

# in engine

class CreateStudy
  extend ActiveModel::Callbacks
  define_model_callbacks :create

  def call(form)
    if form.valid?
      @study = Study.new(form.study_attributes)

krisleech

require 'dry-validation'
require 'dry-struct'
require 'active_model/errors'

require_relative '../create_study'

module MyApp
  module Types
    include Dry::Types.module