migben / active-record-pairing-cli

CLI Pairing App

Your project today is a small version of your group projects next week! Your job is to create ONE model, connect it to Active Record, and create a CLI app (command line interface) that will let your app's users perform CRUD actions.

Here are the user stories your app should have:

• Create a new instance of your class and have it save to the database
• Be able to view all instances of your class, listed by their names
• (bonus) Be able to delete an instance
• (bonus) Find an instance and update one of its attributes in the database

Step 1: Set up one class using Active Record

1. Create a migration rake db:create_migration NAME=create_games

2. Write the migration

create_table :games do |t|
  t.string :title
  t.string :genre
  t.integer :price

  t.timestamps
  # created_at, updated_at
end

3. Run the migration: rake db:migrate

4. Check the migration: rake db:migrate:status (and look at your schema)

5. Create model and inherit active record: class Game < ActiveRecord::Base

Step 2: Make the CLI app

We've provided two options for starter code for your CLI app.

If you're feeling confident about OOP, have a look at the bin/run_cli.rb file and the app/cli.rb for a starting place to create your user interface (note: the cli.rb file should not inherit from ActiveRecord). To test your app, from the terminal, run ruby bin/run_cli.rb.

If you're less confident about OOP, there's also a bin/run.rb file with some code defined for starting your CLI application. To test your app, from the terminal, run ruby bin/run.rb.

Helpful Hints

• Consider writing helper methods in your model! For example, you might make a class method like Game.print_all that iterates through all the Game instances and formats them in a nice way to display in the terminal.
• Use rake console to test your code, and see what methods you have access to using Active Record!
• Check out the Active Record documentation:
  • https://guides.rubyonrails.org/active_record_migrations.html
  • https://guides.rubyonrails.org/active_record_querying.html