require 'earth/model'

require 'earth/residence/residential_energy_consumption_survey_response'

class ResidenceClass < ActiveRecord::Base
  extend Earth::Model

  TABLE_STRUCTURE = <<-EOS

CREATE TABLE residence_classes
  (
     name CHARACTER VARYING(255) NOT NULL PRIMARY KEY
  );

EOS

  self.primary_key = "name"
  
  has_many :residential_energy_consumption_survey_responses

  CLASSIFICATIONS = ['mobile home', 'house', 'apartment']

  def classification
    CLASSIFICATIONS.detect { |c| name.downcase.include? c }
  end

  warn_unless_size 5
end