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@AMHOL AMHOL/rom-repo-crud.rb
Last active May 17, 2016

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require 'bundler/inline'
gemfile(true) do
source 'https://rubygems.org'
gem 'rom', github: 'rom-rb/rom'
gem 'rom-sql', github: 'rom-rb/rom-sql'
gem 'rom-repository', github: 'rom-rb/rom-repository'
gem 'sqlite3'
end
config = ROM::Configuration.new(:sql, 'sqlite::memory')
gateway = config.gateways[:default]
migrations = []
migrations << gateway.migration do
change do
create_table :users do
primary_key :id
column :name, String, null: false
end
end
end
migrations.each do |migration|
migration.apply(gateway.connection, :up)
end
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)
c = repo.create(name: 'Jane')
r = repo[c.id]
u = repo.update(r.id, name: 'John')
d = repo.delete(u.id)
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