Cache small data sets by wrapping the table with an ActiveHash model.

small_table_caching.rb

#
#  Tired of Rails constructing SQL queries to keep loading the same
#  small set of records over and over again?
#
#  Well, cache those records in memory using ActiveHash!
#  * https://github.com/zilkey/active_hash
#
require 'active_record'
require 'active_hash'

class StaticDataModel < ActiveHash::Base
  class Actual < ActiveRecord::Base
    set_table_name "static_data_models"
  end

  fields :name, :color
  Actual.all.each do |record|
    create :id => record.id, :name => record.name, :color => record.color
  end
end