/hanami_has_many

Primary LanguageRuby

Happy has many

Baseline Hanami

  1. hanami new hanami-has-many
    • Note this created a directory named hanami_has_many
  2. bundle install
  3. Run tests, they work: bundle exec rake
  4. git add <bunch-o-stuff>
  5. git commit -av -m 'bundle install'

Add model and association

  1. bundle exec hanami generate model author
  2. bundle exec hanami generate model book
  3. git commit
  4. Edit author migration: https://guides.hanamirb.org/associations/has-many/
    • This adds one line: column :name, String, null: false
  5. Edit book migration based on same link; this adds two lines:
    • foreign_key :author_id, :authors, on_delete: :cascade, null: false
    • column :title, String, null: false
  6. Prepare DBs:
    • Dev: bundle exec hanami db prepare
    • Test: HANAMI_ENV=test bundle exec hanami db prepare
  7. Edit the author repository: https://guides.hanamirb.org/associations/has-many/#basic-usage
  8. Test in console: bundle exec hanami console --engine=pry
    • author_repository = AuthorRepository.new
    • author = author_repository.create_with_books(name: "Alexandre Dumas", books: [{title: "The Count of Montecristo"}])
    • author.name
    • author.id
    • author.books # lists books!
    • author = author_repository.find(author.id)
    • author.books # Does NOT list books!
    • author = author_repository.find_with_books(author.id)
    • author.books # lists books!
  9. Test and commit
  10. Edit the author repository again: https://guides.hanamirb.org/associations/has-many/#add-and-remove
  11. Test in console: bundle exec hanami console --engine=pry
    • author_repository = AuthorRepository.new
    • author = author_repository.find_with_books(1)
    • book = author_repository.add_book(author, title: "The Three Musketeers")
    • author_repository.remove_book(author, book.id)

Hanami Has Many

Welcome to your new Hanami project!

Setup

How to run tests:

% bundle exec rake

How to run the development console:

% bundle exec hanami console

How to run the development server:

% bundle exec hanami server

How to prepare (create and migrate) DB for development and test environments:

% bundle exec hanami db prepare

% HANAMI_ENV=test bundle exec hanami db prepare

Explore Hanami guides, API docs, or jump in chat for help. Enjoy! 🌸