ActiveRecord Spanner adapter

The Cloud Spanner adapter for ActiveRecord.

Status

Experimental. You cannot expect that this gem is ready for production use -- incompatible API change can happen without notice.

Installation

Add this line to your application's Gemfile:

gem 'activerecord-spanner-adapter',
  git: 'https://github.com/supership-jp/activerecord-spanner-adapter.git'

And then execute:

$ bundle

Or install it yourself as:

$ gem install activerecord-spanner-adapter

Usage

Add a configuration like this into your database.yml.

default:
  adapter: spanner
  project: your-gcp-project-name
  instance: your-spanner-instance-name
  database: your-spanner-database-name
  keyfile: path/to/serivce-account-credential.json

NOTE: This adapter uses UUIDs as primary keys by default unlike other adapters. This is because monotonically increasing primary key restricts write performance in Spanner.

c.f. https://cloud.google.com/spanner/docs/best-practices

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/supership-jp/activerecord-spanner-adapter.

License

Copyright (c) 2017 Supership Inc.

Licensed under MIT license.