Upcoming rom-repository command support

rom-repo-crud.rb

require "rom-repository"
require "rom-sql"

config = ROM::Configuration.new(:sql, 'postgres://localhost/rom_repository')

class Users < ROM::Relation[:sql]
  def by_id(id)
    where(id: id)
  end
end

config.register_relation(Users)

rom = ROM.container(config)

class UserRepo < ROM::Repository[:users]
  commands :create, update: :by_id, delete: :by_id

  def [](id)
    users.by_id(id).one
  end
end

repo = UserRepo.new(rom)

user = repo.create(name: 'Jane')
#<ROM::Struct[User] id=4 name="Jane">

repo.update(user.id, name: 'Jane Doe')
#<ROM::Struct[User] id=4 name="Jane Doe">

repo.delete(user.id)
#<ROM::Struct[User] id=4 name="Jane Doe">

repo[user.id]
# nil