waiting-for-dev

Unhappy path

Before delving into how we support database (DB) transactions, let's first consider how we can handle operations that only pertain to the unhappy path. This consideration is important because, as we will see, it will become relevant when we reach the main topic.

Most of the time, the unhappy path is something managed by the caller (e.g., a controller rendering an error in case of failure). However, there are situations where it makes sense to encapsulate part of the unhappy path within the operations class. For instance, you might want to log the failure somewhere.

When relying on the vanilla #steps method, the implementation is straightforward:

class CreateUser < Dry::Operation

waiting-for-dev

# frozen_string_literal: true

require 'octokit'
require 'faraday/retry'

class Updater
  attr_reader :client

  SOLIDUSIO = 'solidusio'

waiting-for-dev

[Command]
Command="
copyq: 
maxrow = count() - 1
select(maxrow)
paste()
if (config('move') == 'true') {
  remove(0)
} else {
  remove(maxrow)

waiting-for-dev

# frozen_string_literal: true

require "dry/monads"
require "rspec"
require "ostruct"

module Dry
  module TransactionResurrection
    def self.[](monad)
      Module.new do

waiting-for-dev

require 'logger'
require 'byebug'

require 'dry/monads'
require 'dry/monads/do'
require 'dry/matcher/result_matcher'

module Dry
  module Transaction
    module Steps

waiting-for-dev

{"label":"","duration":18592.858384999912,"markers":[{"end":1596.5449410000583,"endStack":null,"isOffMainThread":false,"name":"nsCycleCollector::ForgetSkippable","processType":0,"stack":null,"start":1595.9524039999815},{"end":1621.1153550000163,"endStack":null,"eventPhase":2,"isOffMainThread":false,"name":"DOMEvent","processType":0,"stack":null,"start":1620.9124489999376,"type":"mousemove"},{"causeName":"EventListener.handleEvent","end":1621.1104840000626,"endStack":null,"isOffMainThread":false,"name":"Javascript","processType":0,"stack":1,"start":1620.935107999947},{"causeName":"CC_WAITING","end":1674.7230330000166,"endStack":null,"isOffMainThread":false,"name":"MinorGC","processType":0,"stack":null,"start":1673.6202110000886},{"causeName":"REFRESH_FRAME","end":1712.1202819999307,"endStack":null,"isOffMainThread":false,"name":"MinorGC","processType":0,"stack":null,"start":1711.7321020000381},{"causeName":"REFRESH_FRAME","end":1811.9146579999942,"endStack":null,"isOffMainThread":false,"name":"MinorGC","proces

waiting-for-dev

Measuring objects created by gems in groups [:default, "production"]
Total allocated: 11269732 bytes (61895 objects)
Total retained:  4477284 bytes (11381 objects)

allocated memory by gem
-----------------------------------
   6256569  axlsx-2.0.0
   3278098  nokogiri-1.6.6.2
   1100457  rubyzip-0.9.9
    517043  htmlentities-4.3.4

waiting-for-dev

function epub() {
  tags="$@" 
  if [ x = x${tags} ]; then
     filename=$(date -I)_feeds
  else
     filename=$(date -I)_${tags// /_}_feeds
  fi
  ebook-convert ~/projects/recipes/newsbeuter/newsbeuter.recipe $filename.epub --tags="${tags// /,}"
}

waiting-for-dev

#!/bin/sh

if [ x = x${2} ]; then
   BRANCH_NAME=$(git symbolic-ref --short HEAD)
   STORY_NUMBER=$(echo $BRANCH_NAME | sed -n 's/.*-\([0-9]\)/\1/p')
   if [ x != x${STORY_NUMBER} ]; then
      sed -i.back "1s/^/\n\n[#$STORY_NUMBER]/" "$1"
   fi
fi

waiting-for-dev

#!/bin/bash
# merge2ass.sh - script for merging two text-subtitles into an ass subtitle file
# version 0.9b, 02-feb-2013
# comments/criticism/praise to jose1711-gmail-com

# dependencies: mplayer (if your subtitle files need to be converted to srt), gnu utils

# thanks to:
#  - d.watzke for comments
#  - belisarivs for testing