├── .bundle └── config ├── .circleci └── config.yml ├── .gitignore ├── Gemfile ├── Gemfile.lock ├── MIT-LICENSE ├── README.md ├── Rakefile ├── app ├── assets │ ├── config │ │ └── manifest.js │ ├── images │ │ └── .keep │ ├── javascripts │ │ └── application.js │ └── stylesheets │ │ └── application.css ├── controllers │ ├── application_controller.rb │ └── concerns │ │ └── .keep ├── helpers │ └── application_helper.rb ├── jobs │ ├── application_job.rb │ └── reactor_job.rb ├── models │ ├── application_record.rb │ ├── commands │ │ ├── todo_item │ │ │ └── create.rb │ │ └── todo_list │ │ │ ├── create.rb │ │ │ └── update_name.rb │ ├── events │ │ ├── dispatcher.rb │ │ ├── todo_item │ │ │ ├── base_event.rb │ │ │ └── created.rb │ │ └── todo_list │ │ │ ├── base_event.rb │ │ │ ├── created.rb │ │ │ └── name_updated.rb │ ├── lib │ │ ├── base_event.rb │ │ ├── command.rb │ │ └── event_dispatcher.rb │ ├── reactors │ │ └── todo_list │ │ │ └── send_getting_started_email.rb │ ├── todo_item.rb │ └── todo_list.rb └── views │ └── layouts │ └── application.html.erb ├── bin ├── bundle ├── generate ├── rails ├── rake ├── setup ├── spring ├── update └── yarn ├── config.ru ├── config ├── application.rb ├── boot.rb ├── database.yml ├── environment.rb ├── environments │ ├── development.rb │ ├── production.rb │ └── test.rb ├── initializers │ ├── application_controller_renderer.rb │ ├── assets.rb │ ├── backtrace_silencers.rb │ ├── cookies_serializer.rb │ ├── filter_parameter_logging.rb │ ├── inflections.rb │ ├── mime_types.rb │ └── wrap_parameters.rb ├── locales │ └── en.yml ├── puma.rb ├── routes.rb ├── secrets.yml └── spring.rb ├── db ├── migrate │ ├── 20180529231207_create_todo_lists.rb │ ├── 20180529232913_create_todo_list_events.rb │ ├── 20190501030348_create_todo_items.rb │ └── 20190501031240_todo_item_events.rb ├── schema.rb └── seeds.rb ├── lib ├── assets │ └── .keep └── tasks │ └── .keep ├── log └── .keep ├── package.json ├── public ├── 404.html ├── 422.html ├── 500.html ├── apple-touch-icon-precomposed.png ├── apple-touch-icon.png ├── favicon.ico └── robots.txt ├── test ├── application_system_test_case.rb ├── controllers │ └── .keep ├── fixtures │ ├── .keep │ └── files │ │ └── .keep ├── helpers │ └── .keep ├── integration │ └── .keep ├── models │ ├── .keep │ ├── todo_item_test.rb │ └── todo_list_test.rb ├── system │ └── .keep └── test_helper.rb ├── tmp └── .keep └── vendor └── .keep /.bundle/config: -------------------------------------------------------------------------------- 1 | --- 2 | BUNDLE_PATH: "vendor/bundle" 3 | -------------------------------------------------------------------------------- /.circleci/config.yml: -------------------------------------------------------------------------------- 1 | version: 2 2 | jobs: 3 | build: 4 | parallelism: 1 5 | docker: 6 | - image: circleci/ruby:2.4.2-jessie-node 7 | environment: 8 | BUNDLE_JOBS: 3 9 | BUNDLE_RETRY: 3 10 | BUNDLE_PATH: vendor/bundle 11 | RAILS_ENV: test 12 | steps: 13 | - checkout 14 | 15 | # Which version of bundler? 16 | - run: 17 | name: Which bundler? 18 | command: bundle -v 19 | 20 | - restore_cache: 21 | keys: 22 | - rails-demo-bundle-v1-{{ checksum "Gemfile.lock" }} 23 | - rails-demo-bundle-v1- 24 | 25 | - run: 26 | name: Bundle Install 27 | command: bundle check || bundle install 28 | 29 | - save_cache: 30 | key: rails-demo-bundle-v1-{{ checksum "Gemfile.lock" }} 31 | paths: 32 | - vendor/bundle 33 | 34 | - run: 35 | name: Database setup 36 | command: bin/rails db:schema:load --trace 37 | 38 | - run: 39 | name: Run tests 40 | # https://github.com/rails/spring/pull/546 - Spring bug... 41 | command: DISABLE_SPRING=true bin/rails test 42 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # See https://help.github.com/articles/ignoring-files for more about ignoring files. 2 | # 3 | # If you find yourself ignoring temporary files generated by your text editor 4 | # or operating system, you probably want to add a global ignore instead: 5 | # git config --global core.excludesfile '~/.gitignore_global' 6 | 7 | # Ignore bundler config. 8 | /vendor/bundle 9 | 10 | # Ignore the default SQLite database. 11 | /db/*.sqlite3 12 | /db/*.sqlite3-journal 13 | 14 | # Ignore all logfiles and tempfiles. 15 | /log/* 16 | /tmp/* 17 | !/log/.keep 18 | !/tmp/.keep 19 | 20 | /node_modules 21 | /yarn-error.log 22 | 23 | .byebug_history 24 | -------------------------------------------------------------------------------- /Gemfile: -------------------------------------------------------------------------------- 1 | source 'https://rubygems.org' 2 | 3 | git_source(:github) do |repo_name| 4 | repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/") 5 | "https://github.com/#{repo_name}.git" 6 | end 7 | 8 | 9 | # Bundle edge Rails instead: gem 'rails', github: 'rails/rails' 10 | gem 'rails', '~> 5.2.2' 11 | # Use sqlite3 as the database for Active Record 12 | gem 'sqlite3' 13 | # Use Puma as the app server 14 | gem 'puma', '~> 3.12' 15 | # Use SCSS for stylesheets 16 | gem 'sass-rails', '~> 5.0' 17 | # Use Uglifier as compressor for JavaScript assets 18 | gem 'uglifier', '>= 1.3.0' 19 | # See https://github.com/rails/execjs#readme for more supported runtimes 20 | # gem 'therubyracer', platforms: :ruby 21 | 22 | # Use CoffeeScript for .coffee assets and views 23 | gem 'coffee-rails', '~> 4.2' 24 | # Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks 25 | gem 'turbolinks', '~> 5' 26 | # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder 27 | gem 'jbuilder', '~> 2.5' 28 | # Use ActiveModel has_secure_password 29 | # gem 'bcrypt', '~> 3.1.7' 30 | 31 | # Use Capistrano for deployment 32 | # gem 'capistrano-rails', group: :development 33 | 34 | group :development, :test do 35 | # Call 'byebug' anywhere in the code to stop execution and get a debugger console 36 | gem 'byebug', platforms: [:mri, :mingw, :x64_mingw] 37 | # Adds support for Capybara system testing and selenium driver 38 | gem 'capybara', '~> 2.13' 39 | gem 'selenium-webdriver' 40 | end 41 | 42 | group :development do 43 | # Access an IRB console on exception pages or by using <%= console %> anywhere in the code. 44 | gem 'web-console', '>= 3.3.0' 45 | gem 'listen', '>= 3.0.5', '< 3.2' 46 | # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring 47 | gem 'spring' 48 | gem 'spring-watcher-listen', '~> 2.0.0' 49 | end 50 | 51 | # Windows does not include zoneinfo files, so bundle the tzinfo-data gem 52 | gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby] 53 | -------------------------------------------------------------------------------- /Gemfile.lock: -------------------------------------------------------------------------------- 1 | GEM 2 | remote: https://rubygems.org/ 3 | specs: 4 | actioncable (5.2.2.1) 5 | actionpack (= 5.2.2.1) 6 | nio4r (~> 2.0) 7 | websocket-driver (>= 0.6.1) 8 | actionmailer (5.2.2.1) 9 | actionpack (= 5.2.2.1) 10 | actionview (= 5.2.2.1) 11 | activejob (= 5.2.2.1) 12 | mail (~> 2.5, >= 2.5.4) 13 | rails-dom-testing (~> 2.0) 14 | actionpack (5.2.2.1) 15 | actionview (= 5.2.2.1) 16 | activesupport (= 5.2.2.1) 17 | rack (~> 2.0) 18 | rack-test (>= 0.6.3) 19 | rails-dom-testing (~> 2.0) 20 | rails-html-sanitizer (~> 1.0, >= 1.0.2) 21 | actionview (5.2.2.1) 22 | activesupport (= 5.2.2.1) 23 | builder (~> 3.1) 24 | erubi (~> 1.4) 25 | rails-dom-testing (~> 2.0) 26 | rails-html-sanitizer (~> 1.0, >= 1.0.3) 27 | activejob (5.2.2.1) 28 | activesupport (= 5.2.2.1) 29 | globalid (>= 0.3.6) 30 | activemodel (5.2.2.1) 31 | activesupport (= 5.2.2.1) 32 | activerecord (5.2.2.1) 33 | activemodel (= 5.2.2.1) 34 | activesupport (= 5.2.2.1) 35 | arel (>= 9.0) 36 | activestorage (5.2.2.1) 37 | actionpack (= 5.2.2.1) 38 | activerecord (= 5.2.2.1) 39 | marcel (~> 0.3.1) 40 | activesupport (5.2.2.1) 41 | concurrent-ruby (~> 1.0, >= 1.0.2) 42 | i18n (>= 0.7, < 2) 43 | minitest (~> 5.1) 44 | tzinfo (~> 1.1) 45 | addressable (2.5.2) 46 | public_suffix (>= 2.0.2, < 4.0) 47 | arel (9.0.0) 48 | bindex (0.5.0) 49 | builder (3.2.3) 50 | byebug (11.0.1) 51 | capybara (2.18.0) 52 | addressable 53 | mini_mime (>= 0.1.3) 54 | nokogiri (>= 1.3.3) 55 | rack (>= 1.0.0) 56 | rack-test (>= 0.5.4) 57 | xpath (>= 2.0, < 4.0) 58 | childprocess (0.9.0) 59 | ffi (~> 1.0, >= 1.0.11) 60 | coffee-rails (4.2.2) 61 | coffee-script (>= 2.2.0) 62 | railties (>= 4.0.0) 63 | coffee-script (2.4.1) 64 | coffee-script-source 65 | execjs 66 | coffee-script-source (1.12.2) 67 | concurrent-ruby (1.1.5) 68 | crass (1.0.4) 69 | erubi (1.8.0) 70 | execjs (2.7.0) 71 | ffi (1.10.0) 72 | globalid (0.4.2) 73 | activesupport (>= 4.2.0) 74 | i18n (1.6.0) 75 | concurrent-ruby (~> 1.0) 76 | jbuilder (2.7.0) 77 | activesupport (>= 4.2.0) 78 | multi_json (>= 1.2) 79 | listen (3.1.5) 80 | rb-fsevent (~> 0.9, >= 0.9.4) 81 | rb-inotify (~> 0.9, >= 0.9.7) 82 | ruby_dep (~> 1.2) 83 | loofah (2.2.3) 84 | crass (~> 1.0.2) 85 | nokogiri (>= 1.5.9) 86 | mail (2.7.1) 87 | mini_mime (>= 0.1.1) 88 | marcel (0.3.3) 89 | mimemagic (~> 0.3.2) 90 | method_source (0.9.2) 91 | mimemagic (0.3.3) 92 | mini_mime (1.0.1) 93 | mini_portile2 (2.4.0) 94 | minitest (5.11.3) 95 | multi_json (1.13.1) 96 | nio4r (2.3.1) 97 | nokogiri (1.10.2) 98 | mini_portile2 (~> 2.4.0) 99 | public_suffix (3.0.2) 100 | puma (3.12.1) 101 | rack (2.0.6) 102 | rack-test (1.1.0) 103 | rack (>= 1.0, < 3) 104 | rails (5.2.2.1) 105 | actioncable (= 5.2.2.1) 106 | actionmailer (= 5.2.2.1) 107 | actionpack (= 5.2.2.1) 108 | actionview (= 5.2.2.1) 109 | activejob (= 5.2.2.1) 110 | activemodel (= 5.2.2.1) 111 | activerecord (= 5.2.2.1) 112 | activestorage (= 5.2.2.1) 113 | activesupport (= 5.2.2.1) 114 | bundler (>= 1.3.0) 115 | railties (= 5.2.2.1) 116 | sprockets-rails (>= 2.0.0) 117 | rails-dom-testing (2.0.3) 118 | activesupport (>= 4.2.0) 119 | nokogiri (>= 1.6) 120 | rails-html-sanitizer (1.0.4) 121 | loofah (~> 2.2, >= 2.2.2) 122 | railties (5.2.2.1) 123 | actionpack (= 5.2.2.1) 124 | activesupport (= 5.2.2.1) 125 | method_source 126 | rake (>= 0.8.7) 127 | thor (>= 0.19.0, < 2.0) 128 | rake (12.3.2) 129 | rb-fsevent (0.10.3) 130 | rb-inotify (0.9.10) 131 | ffi (>= 0.5.0, < 2) 132 | ruby_dep (1.5.0) 133 | rubyzip (1.2.2) 134 | sass (3.5.6) 135 | sass-listen (~> 4.0.0) 136 | sass-listen (4.0.0) 137 | rb-fsevent (~> 0.9, >= 0.9.4) 138 | rb-inotify (~> 0.9, >= 0.9.7) 139 | sass-rails (5.0.7) 140 | railties (>= 4.0.0, < 6) 141 | sass (~> 3.1) 142 | sprockets (>= 2.8, < 4.0) 143 | sprockets-rails (>= 2.0, < 4.0) 144 | tilt (>= 1.1, < 3) 145 | selenium-webdriver (3.141.0) 146 | childprocess (~> 0.5) 147 | rubyzip (~> 1.2, >= 1.2.2) 148 | spring (2.0.2) 149 | activesupport (>= 4.2) 150 | spring-watcher-listen (2.0.1) 151 | listen (>= 2.7, < 4.0) 152 | spring (>= 1.2, < 3.0) 153 | sprockets (3.7.2) 154 | concurrent-ruby (~> 1.0) 155 | rack (> 1, < 3) 156 | sprockets-rails (3.2.1) 157 | actionpack (>= 4.0) 158 | activesupport (>= 4.0) 159 | sprockets (>= 3.0.0) 160 | sqlite3 (1.3.13) 161 | thor (0.20.3) 162 | thread_safe (0.3.6) 163 | tilt (2.0.8) 164 | turbolinks (5.2.0) 165 | turbolinks-source (~> 5.2) 166 | turbolinks-source (5.2.0) 167 | tzinfo (1.2.5) 168 | thread_safe (~> 0.1) 169 | uglifier (4.1.10) 170 | execjs (>= 0.3.0, < 3) 171 | web-console (3.7.0) 172 | actionview (>= 5.0) 173 | activemodel (>= 5.0) 174 | bindex (>= 0.4.0) 175 | railties (>= 5.0) 176 | websocket-driver (0.7.0) 177 | websocket-extensions (>= 0.1.0) 178 | websocket-extensions (0.1.3) 179 | xpath (3.1.0) 180 | nokogiri (~> 1.8) 181 | 182 | PLATFORMS 183 | ruby 184 | 185 | DEPENDENCIES 186 | byebug 187 | capybara (~> 2.13) 188 | coffee-rails (~> 4.2) 189 | jbuilder (~> 2.5) 190 | listen (>= 3.0.5, < 3.2) 191 | puma (~> 3.12) 192 | rails (~> 5.2.2) 193 | sass-rails (~> 5.0) 194 | selenium-webdriver 195 | spring 196 | spring-watcher-listen (~> 2.0.0) 197 | sqlite3 198 | turbolinks (~> 5) 199 | tzinfo-data 200 | uglifier (>= 1.3.0) 201 | web-console (>= 3.3.0) 202 | 203 | BUNDLED WITH 204 | 1.15.3 205 | -------------------------------------------------------------------------------- /MIT-LICENSE: -------------------------------------------------------------------------------- 1 | Copyright (c) 2017 Kickstarter, PBC 2 | 3 | Permission is hereby granted, free of charge, to any person obtaining 4 | a copy of this software and associated documentation files (the 5 | "Software"), to deal in the Software without restriction, including 6 | without limitation the rights to use, copy, modify, merge, publish, 7 | distribute, sublicense, and/or sell copies of the Software, and to 8 | permit persons to whom the Software is furnished to do so, subject to 9 | the following conditions: 10 | 11 | The above copyright notice and this permission notice shall be 12 | included in all copies or substantial portions of the Software. 13 | 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 15 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 16 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 17 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 18 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 19 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 20 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 21 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Event Sourcing on Rails - Demo app 2 | 3 | We've put together a minimal Event Sourcing framework to power 4 | https://d.rip and we [wrote about it](https://kickstarter.engineering/event-sourcing-made-simple-4a2625113224) on the [kickstarter engineering blog](https://kickstarter.engineering/event-sourcing-made-simple-4a2625113224). 5 | 6 | This is a working demo application. The ~300 lines of code 7 | making the Event Sourcing framework are under 8 | [`app/models/lib`](https://github.com/pcreux/event-sourcing-rails-todo-app-demo/tree/master/app/models/lib). 9 | 10 | This code is for educational purpose. 11 | 12 | This project is licensed under the terms of the MIT license. 13 | -------------------------------------------------------------------------------- /Rakefile: -------------------------------------------------------------------------------- 1 | # Add your own tasks in files placed in lib/tasks ending in .rake, 2 | # for example lib/tasks/capistrano.rake, and they will automatically be available to Rake. 3 | 4 | require_relative 'config/application' 5 | 6 | Rails.application.load_tasks 7 | -------------------------------------------------------------------------------- /app/assets/config/manifest.js: -------------------------------------------------------------------------------- 1 | //= link_tree ../images 2 | //= link_directory ../javascripts .js 3 | //= link_directory ../stylesheets .css 4 | -------------------------------------------------------------------------------- /app/assets/images/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/app/assets/images/.keep -------------------------------------------------------------------------------- /app/assets/javascripts/application.js: -------------------------------------------------------------------------------- 1 | // This is a manifest file that'll be compiled into application.js, which will include all the files 2 | // listed below. 3 | // 4 | // Any JavaScript/Coffee file within this directory, lib/assets/javascripts, or any plugin's 5 | // vendor/assets/javascripts directory can be referenced here using a relative path. 6 | // 7 | // It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the 8 | // compiled file. JavaScript code in this file should be added after the last require_* statement. 9 | // 10 | // Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details 11 | // about supported directives. 12 | // 13 | //= require rails-ujs 14 | //= require turbolinks 15 | //= require_tree . 16 | -------------------------------------------------------------------------------- /app/assets/stylesheets/application.css: -------------------------------------------------------------------------------- 1 | /* 2 | * This is a manifest file that'll be compiled into application.css, which will include all the files 3 | * listed below. 4 | * 5 | * Any CSS and SCSS file within this directory, lib/assets/stylesheets, or any plugin's 6 | * vendor/assets/stylesheets directory can be referenced here using a relative path. 7 | * 8 | * You're free to add application-wide styles to this file and they'll appear at the bottom of the 9 | * compiled file so the styles you add here take precedence over styles defined in any other CSS/SCSS 10 | * files in this directory. Styles in this file should be added after the last require_* statement. 11 | * It is generally better to create a new file per style scope. 12 | * 13 | *= require_tree . 14 | *= require_self 15 | */ 16 | -------------------------------------------------------------------------------- /app/controllers/application_controller.rb: -------------------------------------------------------------------------------- 1 | class ApplicationController < ActionController::Base 2 | protect_from_forgery with: :exception 3 | end 4 | -------------------------------------------------------------------------------- /app/controllers/concerns/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/app/controllers/concerns/.keep -------------------------------------------------------------------------------- /app/helpers/application_helper.rb: -------------------------------------------------------------------------------- 1 | module ApplicationHelper 2 | end 3 | -------------------------------------------------------------------------------- /app/jobs/application_job.rb: -------------------------------------------------------------------------------- 1 | class ApplicationJob < ActiveJob::Base 2 | end 3 | -------------------------------------------------------------------------------- /app/jobs/reactor_job.rb: -------------------------------------------------------------------------------- 1 | # frozen_string_literal: true 2 | 3 | class ReactorJob < ApplicationJob 4 | def perform(event, reactor_class) 5 | reactor = reactor_class.constantize 6 | 7 | reactor.call(event) 8 | end 9 | end 10 | -------------------------------------------------------------------------------- /app/models/application_record.rb: -------------------------------------------------------------------------------- 1 | class ApplicationRecord < ActiveRecord::Base 2 | self.abstract_class = true 3 | end 4 | -------------------------------------------------------------------------------- /app/models/commands/todo_item/create.rb: -------------------------------------------------------------------------------- 1 | # frozen_string_literal: true 2 | 3 | module Commands 4 | class TodoItem::Create 5 | include Lib::Command 6 | 7 | attributes :todo_list, :name, :metadata 8 | 9 | private def build_event 10 | Events::TodoItem::Created.new( 11 | todo_list_id: todo_list.id, 12 | name: name, 13 | metadata: metadata 14 | ) 15 | end 16 | end 17 | end 18 | -------------------------------------------------------------------------------- /app/models/commands/todo_list/create.rb: -------------------------------------------------------------------------------- 1 | # frozen_string_literal: true 2 | 3 | module Commands 4 | class TodoList::Create 5 | include Lib::Command 6 | 7 | attributes :name, :metadata 8 | 9 | private def build_event 10 | Events::TodoList::Created.new( 11 | name: name, 12 | metadata: metadata 13 | ) 14 | end 15 | end 16 | end 17 | -------------------------------------------------------------------------------- /app/models/commands/todo_list/update_name.rb: -------------------------------------------------------------------------------- 1 | # frozen_string_literal: true 2 | 3 | module Commands 4 | class TodoList::UpdateName 5 | include Lib::Command 6 | 7 | attributes :todo_list, :name, :metadata 8 | 9 | private def build_event 10 | Events::TodoList::NameUpdated.new( 11 | todo_list: todo_list, 12 | name: name, 13 | metadata: metadata 14 | ) 15 | end 16 | 17 | private def noop? 18 | name == todo_list.name 19 | end 20 | end 21 | end 22 | -------------------------------------------------------------------------------- /app/models/events/dispatcher.rb: -------------------------------------------------------------------------------- 1 | # Subscribes Reactors to Events. 2 | # * `trigger` will run the Reactor synchronously 3 | # * `async` will queue up a ReactorJob to run the Reactor 4 | class Events::Dispatcher < Lib::EventDispatcher 5 | on Events::TodoList::Created, async: Reactors::TodoList::SendGettingStartedEmail 6 | end 7 | -------------------------------------------------------------------------------- /app/models/events/todo_item/base_event.rb: -------------------------------------------------------------------------------- 1 | class Events::TodoItem::BaseEvent < Lib::BaseEvent 2 | self.table_name = "todo_item_events" 3 | 4 | belongs_to :todo_item, class_name: "::TodoItem", autosave: false 5 | end 6 | 7 | -------------------------------------------------------------------------------- /app/models/events/todo_item/created.rb: -------------------------------------------------------------------------------- 1 | # frozen_string_literal: true 2 | 3 | class Events::TodoItem::Created < Events::TodoItem::BaseEvent 4 | data_attributes :todo_list_id, :name 5 | 6 | def apply(todo_item) 7 | todo_item.todo_list_id = todo_list_id 8 | todo_item.name = name 9 | 10 | todo_item 11 | end 12 | end 13 | -------------------------------------------------------------------------------- /app/models/events/todo_list/base_event.rb: -------------------------------------------------------------------------------- 1 | class Events::TodoList::BaseEvent < Lib::BaseEvent 2 | self.table_name = "todo_list_events" 3 | 4 | belongs_to :todo_list, class_name: "::TodoList", autosave: false 5 | end 6 | 7 | -------------------------------------------------------------------------------- /app/models/events/todo_list/created.rb: -------------------------------------------------------------------------------- 1 | # frozen_string_literal: true 2 | 3 | class Events::TodoList::Created < Events::TodoList::BaseEvent 4 | data_attributes :name 5 | 6 | def apply(todo_list) 7 | todo_list.name = name 8 | 9 | todo_list 10 | end 11 | end 12 | -------------------------------------------------------------------------------- /app/models/events/todo_list/name_updated.rb: -------------------------------------------------------------------------------- 1 | # frozen_string_literal: true 2 | 3 | class Events::TodoList::NameUpdated < Events::TodoList::BaseEvent 4 | data_attributes :name 5 | 6 | def apply(todo_list) 7 | todo_list.name = name 8 | 9 | todo_list 10 | end 11 | end 12 | -------------------------------------------------------------------------------- /app/models/lib/base_event.rb: -------------------------------------------------------------------------------- 1 | # This is the BaseEvent class that all Events inherit from. 2 | # It takes care of serializing `data` and `metadata` via json 3 | # It defines setters and accessors for the defined `data_attributes` 4 | # After create, it calls `apply` to apply changes. 5 | # 6 | # Subclasses must define the `apply` method. 7 | class Lib::BaseEvent < ActiveRecord::Base 8 | serialize :data, JSON 9 | serialize :metadata, JSON 10 | 11 | before_validation :preset_aggregate 12 | before_create :apply_and_persist 13 | after_create :dispatch 14 | 15 | self.abstract_class = true 16 | 17 | # Not using `created_at` as MySQL timestamps don't include ms. 18 | scope :recent_first, -> { reorder('id DESC')} 19 | 20 | # Apply the event to the aggregate passed in. 21 | # Must return the aggregate. 22 | def apply(aggregate) 23 | raise NotImplementedError 24 | end 25 | 26 | after_initialize do 27 | self.data ||= {} 28 | self.metadata ||= {} 29 | end 30 | 31 | # Define attributes to be serialize in the `data` column. 32 | # It generates setters and getters for those. 33 | # 34 | # Example: 35 | # 36 | # class MyEvent < Lib::BaseEvent 37 | # data_attributes :title, :description, :drop_id 38 | # end 39 | # 40 | # MyEvent.create!( 41 | def self.data_attributes(*attrs) 42 | @data_attributes ||= [] 43 | 44 | attrs.map(&:to_s).each do |attr| 45 | @data_attributes << attr unless @data_attributes.include?(attr) 46 | 47 | define_method attr do 48 | self.data ||= {} 49 | self.data[attr] 50 | end 51 | 52 | define_method "#{attr}=" do |arg| 53 | self.data ||= {} 54 | self.data[attr] = arg 55 | end 56 | end 57 | 58 | @data_attributes 59 | end 60 | 61 | def aggregate=(model) 62 | public_send "#{aggregate_name}=", model 63 | end 64 | 65 | # Return the aggregate that the event will apply to 66 | def aggregate 67 | public_send aggregate_name 68 | end 69 | 70 | def aggregate_id=(id) 71 | public_send "#{aggregate_name}_id=", id 72 | end 73 | 74 | def aggregate_id 75 | public_send "#{aggregate_name}_id" 76 | end 77 | 78 | def build_aggregate 79 | public_send "build_#{aggregate_name}" 80 | end 81 | 82 | private def preset_aggregate 83 | # Build aggregate when the event is creating an aggregate 84 | self.aggregate ||= build_aggregate 85 | end 86 | 87 | # Apply the transformation to the aggregate and save it. 88 | private def apply_and_persist 89 | # Lock! (all good, we're in the ActiveRecord callback chain transaction) 90 | aggregate.lock! if aggregate.persisted? 91 | 92 | # Apply! 93 | self.aggregate = apply(aggregate) 94 | 95 | # Persist! 96 | aggregate.save! 97 | self.aggregate_id = aggregate.id if aggregate_id.nil? 98 | end 99 | 100 | def self.aggregate_name 101 | inferred_aggregate = reflect_on_all_associations(:belongs_to).first 102 | raise "Events must belong to an aggregate" if inferred_aggregate.nil? 103 | inferred_aggregate.name 104 | end 105 | 106 | delegate :aggregate_name, to: :class 107 | 108 | # Underscored class name by default. ex: "post/updated" 109 | # Used when sending events to the data pipeline 110 | def self.event_name 111 | self.name.sub("Events::", '').underscore 112 | end 113 | 114 | private def dispatch 115 | Events::Dispatcher.dispatch(self) 116 | end 117 | end 118 | 119 | -------------------------------------------------------------------------------- /app/models/lib/command.rb: -------------------------------------------------------------------------------- 1 | # The Base command mixin that commands include. 2 | # 3 | # A Command has the following public api. 4 | # 5 | # ``` 6 | # MyCommand.call(user: ..., post: ...) # shorthand to initialize, validate and execute the command 7 | # command = MyCommand.new(user: ..., post: ...) 8 | # command.valid? # true or false 9 | # command.errors # +> 10 | # command.call # validate and execute the command 11 | # ``` 12 | # 13 | # `call` will raise an `ActiveRecord::RecordInvalid` error if it fails validations. 14 | # 15 | # Commands including the `Command::Base` mixin must: 16 | # * list the attributes the command takes 17 | # * implement `build_event` which returns a non-persisted event or nil for noop. 18 | # 19 | # Ex: 20 | # 21 | # ``` 22 | # class MyCommand 23 | # include Command 24 | # 25 | # attributes :user, :post 26 | # 27 | # def build_event 28 | # Event.new(...) 29 | # end 30 | # end 31 | # ``` 32 | module Lib 33 | module Command 34 | extend ActiveSupport::Concern 35 | 36 | included do 37 | include ActiveModel::Validations 38 | end 39 | 40 | class_methods do 41 | # Run validations and persist the event. 42 | # 43 | # On success: returns the event 44 | # On noop: returns nil 45 | # On failure: raise an ActiveRecord::RecordInvalid error 46 | def call(*args) 47 | new(*args).call 48 | end 49 | 50 | # Define the attributes. 51 | # They are set when initializing the command as keyword arguments and 52 | # are all accessible as getter methods. 53 | # 54 | # ex: `attributes :post, :user, :ability` 55 | def attributes(*args) 56 | attr_reader(*args) 57 | 58 | initialize_method_arguments = args.map { |arg| "#{arg}:" }.join(', ') 59 | initialize_method_body = args.map { |arg| "@#{arg} = #{arg}" }.join(";") 60 | 61 | class_eval <<~CODE 62 | def initialize(#{initialize_method_arguments}) 63 | #{initialize_method_body} 64 | after_initialize 65 | end 66 | CODE 67 | end 68 | end 69 | 70 | def call 71 | return nil if event.nil? 72 | raise "The event should not be persisted at this stage!" if event.persisted? 73 | 74 | validate! 75 | execute! 76 | 77 | event 78 | end 79 | 80 | def validate! 81 | valid? || raise(ActiveRecord::RecordInvalid, self) 82 | end 83 | 84 | # A new record or nil if noop 85 | def event 86 | @event ||= build_event 87 | end 88 | 89 | # Save the event. Should not be overwritten by the command as side effects 90 | # should be implemented via Reactors triggering other Events. 91 | private def execute! 92 | event.save! 93 | end 94 | 95 | # Returns a new event record or nil if noop 96 | private def build_event 97 | raise NotImplementedError 98 | end 99 | 100 | # Hook to set default values 101 | private def after_initialize 102 | # noop 103 | end 104 | end 105 | end 106 | -------------------------------------------------------------------------------- /app/models/lib/event_dispatcher.rb: -------------------------------------------------------------------------------- 1 | # Dispatcher implementation used by Events::Dispatcher. 2 | class Lib::EventDispatcher 3 | # Register Reactors to Events. 4 | # * Reactors registered with `trigger` will be triggered synchronously 5 | # * Reactors registered with `async` will be triggered asynchronously via a Sidekiq Job 6 | # 7 | # Example: 8 | # 9 | # on BaseEvent, trigger: LogEvent, async: TrackEvent 10 | # on PledgeCancelled, PaymentFailed, async: [NotifyAdmin, CreateTask] 11 | # on [PledgeCancelled, PaymentFailed], async: [NotifyAdmin, CreateTask] 12 | # 13 | def self.on(*events, trigger: [], async: []) 14 | rules.register(events: events.flatten, sync: Array(trigger), async: Array(async)) 15 | end 16 | 17 | # Dispatches events to matching Reactors once. 18 | # Called by all events after they are created. 19 | def self.dispatch(event) 20 | reactors = rules.for(event) 21 | reactors.sync.each { |reactor| reactor.call(event) } 22 | reactors.async.each { |reactor| ReactorJob.perform_later(event, reactor.to_s) } 23 | end 24 | 25 | def self.rules 26 | @rules ||= RuleSet.new 27 | end 28 | 29 | class RuleSet 30 | def initialize 31 | @rules ||= Hash.new { |h, k| h[k] = ReactorSet.new } 32 | end 33 | 34 | # Register events with their sync and async Reactors 35 | def register(events:, sync:, async:) 36 | events.each do |event| 37 | @rules[event].add_sync sync 38 | @rules[event].add_async async 39 | end 40 | end 41 | 42 | # Return a ReactorSet containing all Reactors matching an Event 43 | def for(event) 44 | reactors = ReactorSet.new 45 | 46 | @rules.each do |event_class, rule| 47 | # Match event by class including ancestors. e.g. All events match a role for BaseEvent. 48 | if event.is_a?(event_class) 49 | reactors.add_sync rule.sync 50 | reactors.add_async rule.async 51 | end 52 | end 53 | 54 | reactors 55 | end 56 | end 57 | 58 | # Contains sync and async reactors. Used to: 59 | # * store reactors via Rules#register 60 | # * return a set of matching reactors with Rules#for 61 | class ReactorSet 62 | attr_reader :sync, :async 63 | 64 | def initialize 65 | @sync = Set.new 66 | @async = Set.new 67 | end 68 | 69 | def add_sync(reactors) 70 | @sync += reactors 71 | end 72 | 73 | def add_async(reactors) 74 | @async += reactors 75 | end 76 | end 77 | end 78 | 79 | -------------------------------------------------------------------------------- /app/models/reactors/todo_list/send_getting_started_email.rb: -------------------------------------------------------------------------------- 1 | class Reactors::TodoList::SendGettingStartedEmail 2 | def self.call(event) 3 | todo_list = event.todo_list 4 | name = event.name 5 | 6 | # send an email... 7 | end 8 | end 9 | -------------------------------------------------------------------------------- /app/models/todo_item.rb: -------------------------------------------------------------------------------- 1 | class TodoItem < ApplicationRecord 2 | belongs_to :todo_list 3 | end 4 | -------------------------------------------------------------------------------- /app/models/todo_list.rb: -------------------------------------------------------------------------------- 1 | class TodoList < ApplicationRecord 2 | has_many :todo_items 3 | end 4 | -------------------------------------------------------------------------------- /app/views/layouts/application.html.erb: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | EventSourcingRailsTodoDemo 5 | <%= csrf_meta_tags %> 6 | 7 | <%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %> 8 | <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %> 9 | 10 | 11 | 12 | <%= yield %> 13 | 14 | 15 | -------------------------------------------------------------------------------- /bin/bundle: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__) 3 | load Gem.bin_path('bundler', 'bundle') 4 | -------------------------------------------------------------------------------- /bin/generate: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | # Generate Events, Commands, Reactors. 3 | # 4 | USAGE = <<~USAGE 5 | script/generate app/models/commands/drop/update.rb 6 | script/generate app/models/events/drop/title_updated.rb 7 | script/generate app/models/reactors/notifications/new_subscriber.rb 8 | USAGE 9 | 10 | if ARGV.empty? 11 | puts "Usage:" 12 | puts USAGE 13 | exit(-1) 14 | end 15 | 16 | require 'fileutils' 17 | 18 | def generate(file_path) 19 | _app, _models, type, entity, file = file_path.split('/') 20 | class_name = file.gsub(/\.rb$/, '').split('_').map(&:capitalize).join 21 | 22 | content = template( 23 | entity: entity, 24 | class_name: class_name, 25 | file: file.gsub(/\.rb$/, ''), 26 | type: type 27 | ) 28 | 29 | FileUtils.mkdir_p File.dirname(file_path) 30 | 31 | File.open(file_path, 'w') do |f| 32 | f.puts content 33 | end 34 | 35 | puts "Done!" 36 | puts "" 37 | puts content 38 | end 39 | 40 | def template(entity:, class_name:, file:, type:) 41 | template = TEMPLATES.fetch(type.to_sym) { DEFAULT_TEMPLATE } 42 | 43 | capitalized_entity = entity.split('_').map(&:capitalize).join 44 | full_class_name = [capitalized_entity, class_name].join('::') 45 | 46 | template 47 | .gsub("FULL_CLASS_NAME", full_class_name) # Comment::Created 48 | .gsub("CLASS_NAME", class_name) # Created 49 | .gsub("ACTION", file) # created 50 | .gsub("ENTITY", capitalized_entity) # Comment 51 | .gsub("entity", entity) # comment 52 | end 53 | 54 | COMMAND_TEMPLATE = <<~CODE 55 | # frozen_string_literal: true 56 | 57 | module Commands 58 | class FULL_CLASS_NAME 59 | include Command 60 | 61 | attributes :entity, :metadata 62 | 63 | private def build_event 64 | return if noop? 65 | 66 | Events::ENTITY::CLASS_NAMEd.new( 67 | entity: entity, 68 | metadata: metadata 69 | ) 70 | end 71 | 72 | private def noop? 73 | entity.ACTIONd? 74 | end 75 | end 76 | end 77 | CODE 78 | 79 | EVENT_TEMPLATE = <<~CODE 80 | # frozen_string_literal: true 81 | 82 | class Events::ENTITY::CLASS_NAME < Events::ENTITY::BaseEvent 83 | data_attributes :thing 84 | 85 | def apply(entity) 86 | entity.thing = thing 87 | 88 | entity 89 | end 90 | end 91 | CODE 92 | 93 | REACTOR_TEMPLATE = <<~CODE 94 | # frozen_string_literal: true 95 | 96 | class Reactors::FULL_CLASS_NAME 97 | def self.call(event) 98 | # ... 99 | end 100 | end 101 | CODE 102 | 103 | TEMPLATES = { 104 | events: EVENT_TEMPLATE, 105 | commands: COMMAND_TEMPLATE, 106 | reactors: REACTOR_TEMPLATE 107 | } 108 | 109 | DEFAULT_TEMPLATE = <<~CODE 110 | # frozen_string_literal: true 111 | 112 | class FULL_CLASS_NAME 113 | # ... 114 | end 115 | CODE 116 | 117 | ARGV.each do |file| 118 | generate(file) 119 | end 120 | -------------------------------------------------------------------------------- /bin/rails: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | begin 3 | load File.expand_path('../spring', __FILE__) 4 | rescue LoadError => e 5 | raise unless e.message.include?('spring') 6 | end 7 | APP_PATH = File.expand_path('../config/application', __dir__) 8 | require_relative '../config/boot' 9 | require 'rails/commands' 10 | -------------------------------------------------------------------------------- /bin/rake: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | begin 3 | load File.expand_path('../spring', __FILE__) 4 | rescue LoadError => e 5 | raise unless e.message.include?('spring') 6 | end 7 | require_relative '../config/boot' 8 | require 'rake' 9 | Rake.application.run 10 | -------------------------------------------------------------------------------- /bin/setup: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | require 'pathname' 3 | require 'fileutils' 4 | include FileUtils 5 | 6 | # path to your application root. 7 | APP_ROOT = Pathname.new File.expand_path('../../', __FILE__) 8 | 9 | def system!(*args) 10 | system(*args) || abort("\n== Command #{args} failed ==") 11 | end 12 | 13 | chdir APP_ROOT do 14 | # This script is a starting point to setup your application. 15 | # Add necessary setup steps to this file. 16 | 17 | puts '== Installing dependencies ==' 18 | system! 'gem install bundler --conservative' 19 | system('bundle check') || system!('bundle install') 20 | 21 | # Install JavaScript dependencies if using Yarn 22 | # system('bin/yarn') 23 | 24 | 25 | # puts "\n== Copying sample files ==" 26 | # unless File.exist?('config/database.yml') 27 | # cp 'config/database.yml.sample', 'config/database.yml' 28 | # end 29 | 30 | puts "\n== Preparing database ==" 31 | system! 'bin/rails db:setup' 32 | 33 | puts "\n== Removing old logs and tempfiles ==" 34 | system! 'bin/rails log:clear tmp:clear' 35 | 36 | puts "\n== Restarting application server ==" 37 | system! 'bin/rails restart' 38 | end 39 | -------------------------------------------------------------------------------- /bin/spring: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | 3 | # This file loads spring without using Bundler, in order to be fast. 4 | # It gets overwritten when you run the `spring binstub` command. 5 | 6 | unless defined?(Spring) 7 | require 'rubygems' 8 | require 'bundler' 9 | 10 | lockfile = Bundler::LockfileParser.new(Bundler.default_lockfile.read) 11 | spring = lockfile.specs.detect { |spec| spec.name == "spring" } 12 | if spring 13 | Gem.use_paths Gem.dir, Bundler.bundle_path.to_s, *Gem.path 14 | gem 'spring', spring.version 15 | require 'spring/binstub' 16 | end 17 | end 18 | -------------------------------------------------------------------------------- /bin/update: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | require 'pathname' 3 | require 'fileutils' 4 | include FileUtils 5 | 6 | # path to your application root. 7 | APP_ROOT = Pathname.new File.expand_path('../../', __FILE__) 8 | 9 | def system!(*args) 10 | system(*args) || abort("\n== Command #{args} failed ==") 11 | end 12 | 13 | chdir APP_ROOT do 14 | # This script is a way to update your development environment automatically. 15 | # Add necessary update steps to this file. 16 | 17 | puts '== Installing dependencies ==' 18 | system! 'gem install bundler --conservative' 19 | system('bundle check') || system!('bundle install') 20 | 21 | puts "\n== Updating database ==" 22 | system! 'bin/rails db:migrate' 23 | 24 | puts "\n== Removing old logs and tempfiles ==" 25 | system! 'bin/rails log:clear tmp:clear' 26 | 27 | puts "\n== Restarting application server ==" 28 | system! 'bin/rails restart' 29 | end 30 | -------------------------------------------------------------------------------- /bin/yarn: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | VENDOR_PATH = File.expand_path('..', __dir__) 3 | Dir.chdir(VENDOR_PATH) do 4 | begin 5 | exec "yarnpkg #{ARGV.join(" ")}" 6 | rescue Errno::ENOENT 7 | $stderr.puts "Yarn executable was not detected in the system." 8 | $stderr.puts "Download Yarn at https://yarnpkg.com/en/docs/install" 9 | exit 1 10 | end 11 | end 12 | -------------------------------------------------------------------------------- /config.ru: -------------------------------------------------------------------------------- 1 | # This file is used by Rack-based servers to start the application. 2 | 3 | require_relative 'config/environment' 4 | 5 | run Rails.application 6 | -------------------------------------------------------------------------------- /config/application.rb: -------------------------------------------------------------------------------- 1 | require_relative 'boot' 2 | 3 | require "rails" 4 | # Pick the frameworks you want: 5 | require "active_model/railtie" 6 | require "active_job/railtie" 7 | require "active_record/railtie" 8 | require "action_controller/railtie" 9 | # require "action_mailer/railtie" 10 | require "action_view/railtie" 11 | # require "action_cable/engine" 12 | require "sprockets/railtie" 13 | require "rails/test_unit/railtie" 14 | 15 | # Require the gems listed in Gemfile, including any gems 16 | # you've limited to :test, :development, or :production. 17 | Bundler.require(*Rails.groups) 18 | 19 | module EventSourcingRailsTodoDemo 20 | class Application < Rails::Application 21 | # Initialize configuration defaults for originally generated Rails version. 22 | config.load_defaults 5.1 23 | 24 | # Settings in config/environments/* take precedence over those specified here. 25 | # Application configuration should go into files in config/initializers 26 | # -- all .rb files in that directory are automatically loaded. 27 | end 28 | end 29 | -------------------------------------------------------------------------------- /config/boot.rb: -------------------------------------------------------------------------------- 1 | ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__) 2 | 3 | require 'bundler/setup' # Set up gems listed in the Gemfile. 4 | -------------------------------------------------------------------------------- /config/database.yml: -------------------------------------------------------------------------------- 1 | # SQLite version 3.x 2 | # gem install sqlite3 3 | # 4 | # Ensure the SQLite 3 gem is defined in your Gemfile 5 | # gem 'sqlite3' 6 | # 7 | default: &default 8 | adapter: sqlite3 9 | pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %> 10 | timeout: 5000 11 | 12 | development: 13 | <<: *default 14 | database: db/development.sqlite3 15 | 16 | # Warning: The database defined as "test" will be erased and 17 | # re-generated from your development database when you run "rake". 18 | # Do not set this db to the same as development or production. 19 | test: 20 | <<: *default 21 | database: db/test.sqlite3 22 | 23 | production: 24 | <<: *default 25 | database: db/production.sqlite3 26 | -------------------------------------------------------------------------------- /config/environment.rb: -------------------------------------------------------------------------------- 1 | # Load the Rails application. 2 | require_relative 'application' 3 | 4 | # Initialize the Rails application. 5 | Rails.application.initialize! 6 | -------------------------------------------------------------------------------- /config/environments/development.rb: -------------------------------------------------------------------------------- 1 | Rails.application.configure do 2 | # Settings specified here will take precedence over those in config/application.rb. 3 | 4 | # In the development environment your application's code is reloaded on 5 | # every request. This slows down response time but is perfect for development 6 | # since you don't have to restart the web server when you make code changes. 7 | config.cache_classes = false 8 | 9 | # Do not eager load code on boot. 10 | config.eager_load = false 11 | 12 | # Show full error reports. 13 | config.consider_all_requests_local = true 14 | 15 | # Enable/disable caching. By default caching is disabled. 16 | if Rails.root.join('tmp/caching-dev.txt').exist? 17 | config.action_controller.perform_caching = true 18 | 19 | config.cache_store = :memory_store 20 | config.public_file_server.headers = { 21 | 'Cache-Control' => "public, max-age=#{2.days.seconds.to_i}" 22 | } 23 | else 24 | config.action_controller.perform_caching = false 25 | 26 | config.cache_store = :null_store 27 | end 28 | 29 | # Print deprecation notices to the Rails logger. 30 | config.active_support.deprecation = :log 31 | 32 | # Raise an error on page load if there are pending migrations. 33 | config.active_record.migration_error = :page_load 34 | 35 | # Debug mode disables concatenation and preprocessing of assets. 36 | # This option may cause significant delays in view rendering with a large 37 | # number of complex assets. 38 | config.assets.debug = true 39 | 40 | # Suppress logger output for asset requests. 41 | config.assets.quiet = true 42 | 43 | # Raises error for missing translations 44 | # config.action_view.raise_on_missing_translations = true 45 | 46 | # Use an evented file watcher to asynchronously detect changes in source code, 47 | # routes, locales, etc. This feature depends on the listen gem. 48 | config.file_watcher = ActiveSupport::EventedFileUpdateChecker 49 | end 50 | -------------------------------------------------------------------------------- /config/environments/production.rb: -------------------------------------------------------------------------------- 1 | Rails.application.configure do 2 | # Settings specified here will take precedence over those in config/application.rb. 3 | 4 | # Code is not reloaded between requests. 5 | config.cache_classes = true 6 | 7 | # Eager load code on boot. This eager loads most of Rails and 8 | # your application in memory, allowing both threaded web servers 9 | # and those relying on copy on write to perform better. 10 | # Rake tasks automatically ignore this option for performance. 11 | config.eager_load = true 12 | 13 | # Full error reports are disabled and caching is turned on. 14 | config.consider_all_requests_local = false 15 | config.action_controller.perform_caching = true 16 | 17 | # Attempt to read encrypted secrets from `config/secrets.yml.enc`. 18 | # Requires an encryption key in `ENV["RAILS_MASTER_KEY"]` or 19 | # `config/secrets.yml.key`. 20 | config.read_encrypted_secrets = true 21 | 22 | # Disable serving static files from the `/public` folder by default since 23 | # Apache or NGINX already handles this. 24 | config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present? 25 | 26 | # Compress JavaScripts and CSS. 27 | config.assets.js_compressor = :uglifier 28 | # config.assets.css_compressor = :sass 29 | 30 | # Do not fallback to assets pipeline if a precompiled asset is missed. 31 | config.assets.compile = false 32 | 33 | # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb 34 | 35 | # Enable serving of images, stylesheets, and JavaScripts from an asset server. 36 | # config.action_controller.asset_host = 'http://assets.example.com' 37 | 38 | # Specifies the header that your server uses for sending files. 39 | # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache 40 | # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX 41 | 42 | 43 | # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies. 44 | # config.force_ssl = true 45 | 46 | # Use the lowest log level to ensure availability of diagnostic information 47 | # when problems arise. 48 | config.log_level = :debug 49 | 50 | # Prepend all log lines with the following tags. 51 | config.log_tags = [ :request_id ] 52 | 53 | # Use a different cache store in production. 54 | # config.cache_store = :mem_cache_store 55 | 56 | # Use a real queuing backend for Active Job (and separate queues per environment) 57 | # config.active_job.queue_adapter = :resque 58 | # config.active_job.queue_name_prefix = "event-sourcing-rails-todo-demo_#{Rails.env}" 59 | 60 | # Enable locale fallbacks for I18n (makes lookups for any locale fall back to 61 | # the I18n.default_locale when a translation cannot be found). 62 | config.i18n.fallbacks = true 63 | 64 | # Send deprecation notices to registered listeners. 65 | config.active_support.deprecation = :notify 66 | 67 | # Use default logging formatter so that PID and timestamp are not suppressed. 68 | config.log_formatter = ::Logger::Formatter.new 69 | 70 | # Use a different logger for distributed setups. 71 | # require 'syslog/logger' 72 | # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name') 73 | 74 | if ENV["RAILS_LOG_TO_STDOUT"].present? 75 | logger = ActiveSupport::Logger.new(STDOUT) 76 | logger.formatter = config.log_formatter 77 | config.logger = ActiveSupport::TaggedLogging.new(logger) 78 | end 79 | 80 | # Do not dump schema after migrations. 81 | config.active_record.dump_schema_after_migration = false 82 | end 83 | -------------------------------------------------------------------------------- /config/environments/test.rb: -------------------------------------------------------------------------------- 1 | Rails.application.configure do 2 | # Settings specified here will take precedence over those in config/application.rb. 3 | 4 | # The test environment is used exclusively to run your application's 5 | # test suite. You never need to work with it otherwise. Remember that 6 | # your test database is "scratch space" for the test suite and is wiped 7 | # and recreated between test runs. Don't rely on the data there! 8 | config.cache_classes = true 9 | 10 | # Do not eager load code on boot. This avoids loading your whole application 11 | # just for the purpose of running a single test. If you are using a tool that 12 | # preloads Rails for running tests, you may have to set it to true. 13 | config.eager_load = false 14 | 15 | # Configure public file server for tests with Cache-Control for performance. 16 | config.public_file_server.enabled = true 17 | config.public_file_server.headers = { 18 | 'Cache-Control' => "public, max-age=#{1.hour.seconds.to_i}" 19 | } 20 | 21 | # Show full error reports and disable caching. 22 | config.consider_all_requests_local = true 23 | config.action_controller.perform_caching = false 24 | 25 | # Raise exceptions instead of rendering exception templates. 26 | config.action_dispatch.show_exceptions = false 27 | 28 | # Disable request forgery protection in test environment. 29 | config.action_controller.allow_forgery_protection = false 30 | 31 | # Print deprecation notices to the stderr. 32 | config.active_support.deprecation = :stderr 33 | 34 | # Raises error for missing translations 35 | # config.action_view.raise_on_missing_translations = true 36 | end 37 | -------------------------------------------------------------------------------- /config/initializers/application_controller_renderer.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # ActiveSupport::Reloader.to_prepare do 4 | # ApplicationController.renderer.defaults.merge!( 5 | # http_host: 'example.org', 6 | # https: false 7 | # ) 8 | # end 9 | -------------------------------------------------------------------------------- /config/initializers/assets.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Version of your assets, change this if you want to expire all your assets. 4 | Rails.application.config.assets.version = '1.0' 5 | 6 | # Add additional assets to the asset load path. 7 | # Rails.application.config.assets.paths << Emoji.images_path 8 | # Add Yarn node_modules folder to the asset load path. 9 | Rails.application.config.assets.paths << Rails.root.join('node_modules') 10 | 11 | # Precompile additional assets. 12 | # application.js, application.css, and all non-JS/CSS in the app/assets 13 | # folder are already added. 14 | # Rails.application.config.assets.precompile += %w( admin.js admin.css ) 15 | -------------------------------------------------------------------------------- /config/initializers/backtrace_silencers.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces. 4 | # Rails.backtrace_cleaner.add_silencer { |line| line =~ /my_noisy_library/ } 5 | 6 | # You can also remove all the silencers if you're trying to debug a problem that might stem from framework code. 7 | # Rails.backtrace_cleaner.remove_silencers! 8 | -------------------------------------------------------------------------------- /config/initializers/cookies_serializer.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Specify a serializer for the signed and encrypted cookie jars. 4 | # Valid options are :json, :marshal, and :hybrid. 5 | Rails.application.config.action_dispatch.cookies_serializer = :json 6 | -------------------------------------------------------------------------------- /config/initializers/filter_parameter_logging.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Configure sensitive parameters which will be filtered from the log file. 4 | Rails.application.config.filter_parameters += [:password] 5 | -------------------------------------------------------------------------------- /config/initializers/inflections.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Add new inflection rules using the following format. Inflections 4 | # are locale specific, and you may define rules for as many different 5 | # locales as you wish. All of these examples are active by default: 6 | # ActiveSupport::Inflector.inflections(:en) do |inflect| 7 | # inflect.plural /^(ox)$/i, '\1en' 8 | # inflect.singular /^(ox)en/i, '\1' 9 | # inflect.irregular 'person', 'people' 10 | # inflect.uncountable %w( fish sheep ) 11 | # end 12 | 13 | # These inflection rules are supported but not enabled by default: 14 | # ActiveSupport::Inflector.inflections(:en) do |inflect| 15 | # inflect.acronym 'RESTful' 16 | # end 17 | -------------------------------------------------------------------------------- /config/initializers/mime_types.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Add new mime types for use in respond_to blocks: 4 | # Mime::Type.register "text/richtext", :rtf 5 | -------------------------------------------------------------------------------- /config/initializers/wrap_parameters.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # This file contains settings for ActionController::ParamsWrapper which 4 | # is enabled by default. 5 | 6 | # Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array. 7 | ActiveSupport.on_load(:action_controller) do 8 | wrap_parameters format: [:json] 9 | end 10 | 11 | # To enable root element in JSON for ActiveRecord objects. 12 | # ActiveSupport.on_load(:active_record) do 13 | # self.include_root_in_json = true 14 | # end 15 | -------------------------------------------------------------------------------- /config/locales/en.yml: -------------------------------------------------------------------------------- 1 | # Files in the config/locales directory are used for internationalization 2 | # and are automatically loaded by Rails. If you want to use locales other 3 | # than English, add the necessary files in this directory. 4 | # 5 | # To use the locales, use `I18n.t`: 6 | # 7 | # I18n.t 'hello' 8 | # 9 | # In views, this is aliased to just `t`: 10 | # 11 | # <%= t('hello') %> 12 | # 13 | # To use a different locale, set it with `I18n.locale`: 14 | # 15 | # I18n.locale = :es 16 | # 17 | # This would use the information in config/locales/es.yml. 18 | # 19 | # The following keys must be escaped otherwise they will not be retrieved by 20 | # the default I18n backend: 21 | # 22 | # true, false, on, off, yes, no 23 | # 24 | # Instead, surround them with single quotes. 25 | # 26 | # en: 27 | # 'true': 'foo' 28 | # 29 | # To learn more, please read the Rails Internationalization guide 30 | # available at http://guides.rubyonrails.org/i18n.html. 31 | 32 | en: 33 | hello: "Hello world" 34 | -------------------------------------------------------------------------------- /config/puma.rb: -------------------------------------------------------------------------------- 1 | # Puma can serve each request in a thread from an internal thread pool. 2 | # The `threads` method setting takes two numbers: a minimum and maximum. 3 | # Any libraries that use thread pools should be configured to match 4 | # the maximum value specified for Puma. Default is set to 5 threads for minimum 5 | # and maximum; this matches the default thread size of Active Record. 6 | # 7 | threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 } 8 | threads threads_count, threads_count 9 | 10 | # Specifies the `port` that Puma will listen on to receive requests; default is 3000. 11 | # 12 | port ENV.fetch("PORT") { 3000 } 13 | 14 | # Specifies the `environment` that Puma will run in. 15 | # 16 | environment ENV.fetch("RAILS_ENV") { "development" } 17 | 18 | # Specifies the number of `workers` to boot in clustered mode. 19 | # Workers are forked webserver processes. If using threads and workers together 20 | # the concurrency of the application would be max `threads` * `workers`. 21 | # Workers do not work on JRuby or Windows (both of which do not support 22 | # processes). 23 | # 24 | # workers ENV.fetch("WEB_CONCURRENCY") { 2 } 25 | 26 | # Use the `preload_app!` method when specifying a `workers` number. 27 | # This directive tells Puma to first boot the application and load code 28 | # before forking the application. This takes advantage of Copy On Write 29 | # process behavior so workers use less memory. If you use this option 30 | # you need to make sure to reconnect any threads in the `on_worker_boot` 31 | # block. 32 | # 33 | # preload_app! 34 | 35 | # If you are preloading your application and using Active Record, it's 36 | # recommended that you close any connections to the database before workers 37 | # are forked to prevent connection leakage. 38 | # 39 | # before_fork do 40 | # ActiveRecord::Base.connection_pool.disconnect! if defined?(ActiveRecord) 41 | # end 42 | 43 | # The code in the `on_worker_boot` will be called if you are using 44 | # clustered mode by specifying a number of `workers`. After each worker 45 | # process is booted, this block will be run. If you are using the `preload_app!` 46 | # option, you will want to use this block to reconnect to any threads 47 | # or connections that may have been created at application boot, as Ruby 48 | # cannot share connections between processes. 49 | # 50 | # on_worker_boot do 51 | # ActiveRecord::Base.establish_connection if defined?(ActiveRecord) 52 | # end 53 | # 54 | 55 | # Allow puma to be restarted by `rails restart` command. 56 | plugin :tmp_restart 57 | -------------------------------------------------------------------------------- /config/routes.rb: -------------------------------------------------------------------------------- 1 | Rails.application.routes.draw do 2 | # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html 3 | end 4 | -------------------------------------------------------------------------------- /config/secrets.yml: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Your secret key is used for verifying the integrity of signed cookies. 4 | # If you change this key, all old signed cookies will become invalid! 5 | 6 | # Make sure the secret is at least 30 characters and all random, 7 | # no regular words or you'll be exposed to dictionary attacks. 8 | # You can use `rails secret` to generate a secure secret key. 9 | 10 | # Make sure the secrets in this file are kept private 11 | # if you're sharing your code publicly. 12 | 13 | # Shared secrets are available across all environments. 14 | 15 | # shared: 16 | # api_key: a1B2c3D4e5F6 17 | 18 | # Environmental secrets are only available for that specific environment. 19 | 20 | development: 21 | secret_key_base: c96d30e694f3de37ed56a0ef1184ab446d2df9b5a312eac01c55a54694103f0a86ff915ba8ab3fbfcd002413576cc0df21dc3a5f7fa81b06d715595bf9048dd6 22 | 23 | test: 24 | secret_key_base: 71009508548c0269724dce7ac4693eaacf373b88ea8a6ef00a4957c22434d72898bf63d1232b5394d050c1190b6811e68fea123067a28de76a86379fb60ad582 25 | 26 | # Do not keep production secrets in the unencrypted secrets file. 27 | # Instead, either read values from the environment. 28 | # Or, use `bin/rails secrets:setup` to configure encrypted secrets 29 | # and move the `production:` environment over there. 30 | 31 | production: 32 | secret_key_base: <%= ENV["SECRET_KEY_BASE"] %> 33 | -------------------------------------------------------------------------------- /config/spring.rb: -------------------------------------------------------------------------------- 1 | %w( 2 | .ruby-version 3 | .rbenv-vars 4 | tmp/restart.txt 5 | tmp/caching-dev.txt 6 | ).each { |path| Spring.watch(path) } 7 | -------------------------------------------------------------------------------- /db/migrate/20180529231207_create_todo_lists.rb: -------------------------------------------------------------------------------- 1 | class CreateTodoLists < ActiveRecord::Migration[5.1] 2 | def change 3 | create_table :todo_lists do |t| 4 | t.string :name, null: false 5 | 6 | t.timestamps null: false 7 | end 8 | end 9 | end 10 | -------------------------------------------------------------------------------- /db/migrate/20180529232913_create_todo_list_events.rb: -------------------------------------------------------------------------------- 1 | class CreateTodoListEvents < ActiveRecord::Migration[5.1] 2 | def change 3 | create_table :todo_list_events do |t| 4 | t.string :type, null: false 5 | t.integer :todo_list_id, null: false 6 | 7 | t.text :data, null: false 8 | t.text :metadata, null: false 9 | t.datetime :created_at, null: false 10 | 11 | t.index :todo_list_id 12 | end 13 | end 14 | end 15 | -------------------------------------------------------------------------------- /db/migrate/20190501030348_create_todo_items.rb: -------------------------------------------------------------------------------- 1 | class CreateTodoItems < ActiveRecord::Migration[5.2] 2 | def change 3 | create_table :todo_items do |t| 4 | t.integer :todo_list_id, null: false 5 | t.string :name, null: false 6 | t.datetime :due_date 7 | t.boolean :completed 8 | t.timestamps null: false 9 | end 10 | end 11 | end 12 | -------------------------------------------------------------------------------- /db/migrate/20190501031240_todo_item_events.rb: -------------------------------------------------------------------------------- 1 | class TodoItemEvents < ActiveRecord::Migration[5.2] 2 | def change 3 | create_table :todo_item_events do |t| 4 | t.string :type, null: false 5 | t.integer :todo_item_id, null: false 6 | 7 | t.text :data, null: false 8 | t.text :metadata, null: false 9 | t.datetime :created_at, null: false 10 | 11 | t.index :todo_item_id 12 | end 13 | end 14 | end 15 | -------------------------------------------------------------------------------- /db/schema.rb: -------------------------------------------------------------------------------- 1 | # This file is auto-generated from the current state of the database. Instead 2 | # of editing this file, please use the migrations feature of Active Record to 3 | # incrementally modify your database, and then regenerate this schema definition. 4 | # 5 | # Note that this schema.rb definition is the authoritative source for your 6 | # database schema. If you need to create the application database on another 7 | # system, you should be using db:schema:load, not running all the migrations 8 | # from scratch. The latter is a flawed and unsustainable approach (the more migrations 9 | # you'll amass, the slower it'll run and the greater likelihood for issues). 10 | # 11 | # It's strongly recommended that you check this file into your version control system. 12 | 13 | ActiveRecord::Schema.define(version: 2019_05_01_031240) do 14 | 15 | create_table "todo_item_events", force: :cascade do |t| 16 | t.string "type", null: false 17 | t.integer "todo_item_id", null: false 18 | t.text "data", null: false 19 | t.text "metadata", null: false 20 | t.datetime "created_at", null: false 21 | t.index ["todo_item_id"], name: "index_todo_item_events_on_todo_item_id" 22 | end 23 | 24 | create_table "todo_items", force: :cascade do |t| 25 | t.integer "todo_list_id", null: false 26 | t.string "name", null: false 27 | t.datetime "due_date" 28 | t.boolean "completed" 29 | t.datetime "created_at", null: false 30 | t.datetime "updated_at", null: false 31 | end 32 | 33 | create_table "todo_list_events", force: :cascade do |t| 34 | t.string "type", null: false 35 | t.integer "todo_list_id", null: false 36 | t.text "data", null: false 37 | t.text "metadata", null: false 38 | t.datetime "created_at", null: false 39 | t.index ["todo_list_id"], name: "index_todo_list_events_on_todo_list_id" 40 | end 41 | 42 | create_table "todo_lists", force: :cascade do |t| 43 | t.string "name", null: false 44 | t.datetime "created_at", null: false 45 | t.datetime "updated_at", null: false 46 | end 47 | 48 | end 49 | -------------------------------------------------------------------------------- /db/seeds.rb: -------------------------------------------------------------------------------- 1 | # This file should contain all the record creation needed to seed the database with its default values. 2 | # The data can then be loaded with the rails db:seed command (or created alongside the database with db:setup). 3 | # 4 | # Examples: 5 | # 6 | # movies = Movie.create([{ name: 'Star Wars' }, { name: 'Lord of the Rings' }]) 7 | # Character.create(name: 'Luke', movie: movies.first) 8 | -------------------------------------------------------------------------------- /lib/assets/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/lib/assets/.keep -------------------------------------------------------------------------------- /lib/tasks/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/lib/tasks/.keep -------------------------------------------------------------------------------- /log/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/log/.keep -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "event-sourcing-rails-todo-demo", 3 | "private": true, 4 | "dependencies": {} 5 | } 6 | -------------------------------------------------------------------------------- /public/404.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | The page you were looking for doesn't exist (404) 5 | 6 | 55 | 56 | 57 | 58 | 59 |
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65 | 66 | 67 | -------------------------------------------------------------------------------- /public/apple-touch-icon-precomposed.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/public/apple-touch-icon-precomposed.png -------------------------------------------------------------------------------- /public/apple-touch-icon.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/public/apple-touch-icon.png -------------------------------------------------------------------------------- /public/favicon.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/public/favicon.ico -------------------------------------------------------------------------------- /public/robots.txt: -------------------------------------------------------------------------------- 1 | # See http://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file 2 | -------------------------------------------------------------------------------- /test/application_system_test_case.rb: -------------------------------------------------------------------------------- 1 | require "test_helper" 2 | 3 | class ApplicationSystemTestCase < ActionDispatch::SystemTestCase 4 | driven_by :selenium, using: :chrome, screen_size: [1400, 1400] 5 | end 6 | -------------------------------------------------------------------------------- /test/controllers/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/test/controllers/.keep -------------------------------------------------------------------------------- /test/fixtures/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/test/fixtures/.keep -------------------------------------------------------------------------------- /test/fixtures/files/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/test/fixtures/files/.keep -------------------------------------------------------------------------------- /test/helpers/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/test/helpers/.keep -------------------------------------------------------------------------------- /test/integration/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/test/integration/.keep -------------------------------------------------------------------------------- /test/models/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/test/models/.keep -------------------------------------------------------------------------------- /test/models/todo_item_test.rb: -------------------------------------------------------------------------------- 1 | require 'test_helper' 2 | 3 | class TodoListTest < ActiveSupport::TestCase 4 | include ActiveJob::TestHelper 5 | 6 | test "create a todo item" do 7 | todo_list = TodoList.create!(name: "List") 8 | event = Commands::TodoItem::Create.call(name: "Todo", todo_list: todo_list, metadata: {}) 9 | todo_item = event.todo_item 10 | 11 | assert_equal "Todo", todo_item.name 12 | end 13 | end 14 | -------------------------------------------------------------------------------- /test/models/todo_list_test.rb: -------------------------------------------------------------------------------- 1 | require 'test_helper' 2 | 3 | class TodoListTest < ActiveSupport::TestCase 4 | include ActiveJob::TestHelper 5 | 6 | test "create a todo list" do 7 | perform_enqueued_jobs do 8 | Commands::TodoList::Create.call(name: "My first list", metadata: { source: "test" }) 9 | end 10 | 11 | assert_equal "My first list", TodoList.first!.name 12 | end 13 | 14 | test "update name" do 15 | event = Commands::TodoList::Create.call(name: "My first list", metadata: {}) 16 | 17 | todo_list = event.todo_list 18 | 19 | Commands::TodoList::UpdateName.call(todo_list: todo_list, name: "New name", metadata: {}) 20 | 21 | assert_equal "New name", TodoList.first!.name 22 | end 23 | end 24 | -------------------------------------------------------------------------------- /test/system/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/test/system/.keep -------------------------------------------------------------------------------- /test/test_helper.rb: -------------------------------------------------------------------------------- 1 | require File.expand_path('../../config/environment', __FILE__) 2 | require 'rails/test_help' 3 | 4 | class ActiveSupport::TestCase 5 | # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order. 6 | fixtures :all 7 | 8 | # Add more helper methods to be used by all tests here... 9 | end 10 | -------------------------------------------------------------------------------- /tmp/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/tmp/.keep -------------------------------------------------------------------------------- /vendor/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pcreux/event-sourcing-rails-todo-app-demo/e0ce83f573f8d72eb465403cdeb8636809fbc35b/vendor/.keep --------------------------------------------------------------------------------