How to store and compare :symbols in an ActiveRecord (Ruby on Rails)

Question

I thought it would be good to populate a status field in an activeRecord table using constants. However, when it comes to checking if this status has a particular status, I\'m h

Answer 1

As of Rails 4.1, Active Record now supports enums

From the release notes:

2.5 Active Record enums

Declare an enum attribute where the values map to integers in the database, but can be queried by name.

class Conversation < ActiveRecord::Base
  enum status: [ :active, :archived ]
end

conversation.archived!
conversation.active? # => false
conversation.status  # => "archived"

Conversation.archived # => Relation for all archived Conversations

Conversation.statuses # => { "active" => 0, "archived" => 1 }

Additional documentation here: http://api.rubyonrails.org/v4.1.0/classes/ActiveRecord/Enum.html