In Rails 4.x we have transactional fixtures that wrap each test in a databasetransaction. This transaction rollbacks all the changes at the end of the test.It means the state of the database, before the test is same as after the test isdone. By default this functionality is enabled. We can choose to disable it in a testcase class by setting the class attribute use_transactional_fixtures tofalse cl
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The shift is already happening. Over the past few years, you’ve invested resources in optimizing your APIs for human developers. Meanwhile, a...
Rails 5 beta-1 wasrecently released and one of the notable change was introduction ofApplicationRecord. Up to Rails 4.2, all models inherited from ActiveRecord::Base. But startingfrom Rails 5, all models will inherit from ApplicationRecord. class Post < ApplicationRecordendWhat happened to ActiveRecord::Base ? Well not much changed in reality. Following file will be automatically added tomodels in
Rails API rails/railsのPull RequestにRails apiというものがありました. rails-apiの要素をRalis本体に取り込んだものになるようです. いまのところ,RailsでAPIサーバ作るための超絶スーパーかっこいい便利機能が追加されるというよりは,既存のRailsだとAPIサーバ用途にはデカすぎるのでいいカンジにコンパクトにしていくという方向性っぽいです. 以下,Pull Request内のコミットから気になったやつを適当にピックアップしてみます. (本記事は2015/4/29 日本時間午前9時時点での情報です.今後,開発が進むことで情報が古くなることが予想されます.) Add ActionController API functionality · spastorino/rails@a8559ef ActionController::Apiとい
Rails 5から、attributes APIという機能がActive Recordに追加されました。attributes APIは、既に存在するattributeのtypeを上書きしたり、任意のattributeを定義出来る機能です。 create_table "books", force: :cascade do |t| t.string "name" t.integer "price" t.date "published_on" t.datetime "created_at", null: false t.datetime "updated_at", null: false t.string "out_of_print", default: "false" end
This how-to guide aims to give you the best start to building your Rails API. Thanks to the new rails-api gem that has shipped as part of the Rails core since version 5, Rails is an ideal candidate for building streamlined APIs quickly and easily. Before the advent of Rails 5, the best option for building APIs in Ruby was arguably Grape. Grape is still a great option, especially if you like to DIY
Lets commit these changes: $ git add . $ git commit -am “Add rooms/message views” Now open up http://localhost:3000 again and see what we’ve got: What we have here is a basic rails app with our test message rendered. This is Rails 101. Just about the simplest possible app. With ActionCable it’s just as simple to add realtime functionality, so lets do it: 6. Generate a ActionCable channel with a ‘s
In Rails 4.x, it is not possible to have destroy dependency on both sides of a bi-directional association between the two models as it would result in an infinite callback loop causing SystemStackError: stack level too deep. 1 2class User < ActiveRecord::Base 3 has_one :profile, dependent: :destroy 4end 5 6class Profile < ActiveRecord::Base 7 belongs_to :user, dependent: :destroy 8end 9 Copy 1 2>>
In Rails 4.x, when we save an ActiveRecord object then Rails automaticallyupdates fields updated_at or updated_on. >> user = User.new(name: 'John', email: 'john@example.com')>> user.save INSERT INTO "users" ("name", "created_at", "updated_at", "email") VALUES (?, ?, ?, ?) [["name", "John"], ["created_at", 2016-03-16 09:12:44 UTC], ["updated_at", 2016-03-16 09:12:44 UTC], ["email", "john@example.co
The past week had two great news: Ruby on Google App Engine went beta and Rails 5.0.0.rc1 was released. I decided it was a good opportunity to try both! This article relates my experience trying to run a very basic Rails 5.0.0.rc1 application on the Google App Engine. As a reference, I’m fairly experienced with Rails but I never really used the Google App Engine before. It’s also worth mentionning
It's been one year since Action Cable debuted at RailsConf 2015, and Sophie DeBenedetto is here to answer the question in the minds of many developers: what is it really like to implement "the highlight of Rails 5"? Sophie is a web developer and an instructor at the Flatiron School. Her first love is Ruby on Rails, although she has developed projects with and written about Rails, Ember and Phoenix
Rails 5 will be the easiest release ever to get running on Heroku. You can get it going in just five lines: $ rails new myapp -d postgresql $ cd myapp $ git init . ; git add . ; git commit -m first $ heroku create $ git push heroku master These five lines (and a view or two) are all you need to get a Rails 5 app working on Heroku — there are no special gems you need to install, or flags you must t
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