Clickhouse::Activerecord

A Ruby database ActiveRecord driver for ClickHouse. Support Rails >= 5.0.

Add this line to your application's Gemfile:

gem 'clickhouse-activerecord'

And then execute:

$ bundle

Or install it yourself as:

$ gem install clickhouse-activerecord

Add your database.yml connection information with postfix _clickhouse for you environment:

development_clickhouse:
  adapter: clickhouse
  database: database
  host: localhost
  username: username
  password: password

Add to your model:

class Action < ActiveRecord::Base
  establish_connection "#{Rails.env}_clickhouse".to_sym
end

Or global connection, but schema dump don't works:

development:
  adapter: clickhouse
  database: database
  host: localhost
  username: username
  password: password

Schema dump:

$ rake clickhouse:schema:dump

Action.where(url: 'http://example.com', date: Date.current).where.not(name: nil).order(created_at: :desc).limit(10)
=> #<ActiveRecord::Relation [#<Action *** >]>

Action.create(url: 'http://example.com', date: Date.yesterday)
=> true

NOTE: Creating tables in developing.

After checking out the repo, run bin/setup to install dependencies. 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.

Bug reports and pull requests are welcome on GitHub at https://github.com/pnixx/clickhouse-activerecord. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.