rails new blog-app

rails routes => logs available routes

rails routes --expanded

rails server / rails s

bundle install

bundle install --without production

gem 'sqlite3'

heroku login/create/rename

git push heroku master

rails generate scaffold Article title:string description:text

rails generate migration create_articles

rails db:migrate

rails db:rollback => rollback last migration

rails c => rails console

  Article.create(title: "first article", description: "Description of first article")
  article = Article.new
  article.title = "second article"
  article.description = "description of second article"
  article = Article.new(title: "third article", description: "description of third article")
  article = Article.find(1)
  Article.first
  Article.last
  article.destroy
  article.save
  article.errors
  article.errors.full_messages
  reload!

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code

byebug

continue

Ruby version

System dependencies

Configuration

Database creation

Database initialization

How to run the test suite

Services (job queues, cache servers, search engines, etc.)

Deployment instructions

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