Activerecord::PgArray

This gem defines methods in your models for ActiveRecord attributes that use Postgres's arrays.

I wrote this gem because I realized that working with Postgresql arrays was not as straight-forward as I had hoped.

Installation

Add this line to your application's Gemfile:

gem 'activerecord-pg_array'

Usage

Then in your classes that inherit from ActiveRecord include ActiveRecord::PGArray

Example:

Given the following migration:

class CreateMyModel < ActiveRecord::Migration
  def change
    create_table :my_models do |t|
      t.string :name
      t.integer :friend_ids, array: true, default: []
    end

    add_index :my_models, :friend_ids, using: 'gin'
  end
end

And class:

class MyClass < ActiveRecord::Base
  include ActiveRecord::PGArray
end

The following methods are automatically defined for "friend_ids":

• add_friend(object)
• add_friend!(object)
• add_friends(objects)
• remove_friend(object)
• remove_friend!(object)

Roadmap

• TESTS! Yes I plan on writing tests for this. This gem was pulled out of a rails project and that is where my tests for this are right now. When I have an opportunity, I will add tests.
• Atomic operations

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request