Ruby: Полный Rails
2026-02-26 15:10 Diff
https://ru.hexlet.io/courses/rails-full/lessons/engines/theory_unit
https://github.com/thredded/thredded https://github.com/spree/spree # Создаётся изолированный движок # rails plugin new authoree --mountable # create # create README.md # create Rakefile # Все зависимости для движка указываются в gemspec. Зависимости не указанные в gemspec # create authoree.gemspec # create MIT-LICENSE # create .gitignore # create Gemfile # run git init from "." # create app # create app/controllers/authoree/application_controller.rb # create app/helpers/authoree/application_helper.rb # create app/jobs/authoree/application_job.rb # create app/mailers/authoree/application_mailer.rb # create app/models/authoree/application_record.rb # create app/views/layouts/authoree/application.html.erb # create app/assets/images/authoree # create app/assets/images/authoree/.keep # create config/routes.rb # create lib/authoree.rb # create lib/tasks/authoree_tasks.rake # create lib/authoree/version.rb # create lib/authoree/engine.rb # create app/assets/config/authoree_manifest.js # create app/assets/stylesheets/authoree/application.css # create bin/rails # create test/test_helper.rb # create test/authoree_test.rb # append Rakefile # create test/integration/navigation_test.rb # стаб рельсового приложения через которое мы можем запускать движок как обычное приложение # vendor_app test/dummy # append /tmp/books/Gemfile # authoree/lib/authoree/engine.rb module Authoree class Engine < ::Rails::Engine # Позволяет изолировать всё внутри движка от основного приложения isolate_namespace Authoree end end # authoree/app/controllers/authoree/application_controller.rb # Жёстко задаем зависимость, require_dependency позволяет работать автозагрузке require_dependency 'autoree/application_controller' class Web::ApplicationController < ApplicationController end # authoree/authoree.gemspec # Перед работой с движком необходимо поправить Gemspec (убрать todo) require_relative "lib/authoree/version" Gem::Specification.new do |spec| spec.name = "authoree" spec.version = Authoree::VERSION spec.authors = ["example"] spec.email = ["example@mail.com"] spec.homepage = "http://example.com" spec.summary = "Summary of Authoree." spec.description = "Description of Authoree." spec.license = "MIT" # Prevent pushing this gem to RubyGems.org. To allow pushes either set the 'allowed_push_host' # to allow pushing to a single host or delete this section to allow pushing to any host. # spec.metadata["allowed_push_host"] = "TODO: Set to 'http://mygemserver.com'" spec.metadata["homepage_uri"] = spec.homepage spec.metadata['rubygems_mfa_required'] = true # spec.metadata["source_code_uri"] = "TODO: Put your gem's public repo URL here." # spec.metadata["changelog_uri"] = "TODO: Put your gem's CHANGELOG.md URL here." spec.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.md"] spec.add_dependency "rails", "~> 6.1.4", ">= 6.1.4.1" end # После создания скаффолда внутри движка # bin/rails g scaffold user name # authoree/config/routes.rb# Authoree::Engine.routes.draw do resources :users end # authoree/app/models/authoree/user.rb module Authoree class User < ApplicationRecord end end # authoree/app/controllers/authoree/users_controller.rb require_dependency "authoree/application_controller" module Authoree class UsersController < ApplicationController end # authoree/config/routes.rb# Authoree::Engine.routes.draw do root to: 'users#index' resources :users end # config/routes.rb Rails.application.routes.draw do resources :books # Sidekiq это тоже движок # mount Sidekiq::Web => '/sidekiq' mount Authoree::Engine, at: '/users' end # Gemfile gem 'authoree', path: 'authoree' # Установка миграций из движка # bin/rails authoree:install:migrations 1 ↵ # Copied migration 20211118114102_create_authoree_users.authoree.rb from authoree # Установка миграций из всех движков # bin/rails railties:install:migrations # bin/rails db:migrate module Authoree # Позволяет наследоваться от доступного контроллера в основном приложении class ApplicationController < ::ApplicationController end end # Ссылки на страницы движка создаются с помощью префикса link_to 'Users', authoree.users_path # Пример с динамической настройкой движка # authoree/lib/authoree.rb require "authoree/version" require "authoree/engine" module Authoree mattr_accessor :consumer_class def self.consumer_class @@consumer_class.constantize end end # config/initializers/authoree.rb Authoree.consumer_class = 'Book' # authoree/app/models/authoree/user.rb module Authoree class User < ApplicationRecord attr_accessor :book_title belongs_to :book, class_name: Authoree.consumer_class before_validation :add_book private def add_book self.book = Book.find_or_create_by(title: book_title, shop_id: Shop.last) end end end