Contents

class FuelType < ActiveRecord::Base
  set_primary_key :name
  
  has_many :prices, :class_name => 'FuelPrice', :foreign_key => 'name' # weird
  
  falls_back_on :emission_factor               => 1.0, #FIXME TODO put a real value here - also do we want to do emission factors in kg / kj?
                :emission_factor_units         => 'FIXME',
                :average_purchase_volume       => 100, #FIXME TODO put a real value here - also do we want to do volumes in kJ?
                :average_purchase_volume_units => 'FIXME'
  
  def price
    prices.average :price
  end
  
  col :name
  col :emission_factor, :type => :float
  col :emission_factor_units
  col :density, :type => :float
  col :density_units
  col :average_purchase_volume, :type => :float
  col :average_purchase_volume_units
  # col :energy_content, :type => :float
  # col :energy_content_units
  # col :carbon_content, :type => :float
  # col :carbon_content_units
end

Version data entries

9 entries across 9 versions & 1 rubygems

Version	Path
earth-0.11.0	lib/earth/fuel/fuel_type.rb
earth-0.7.0	lib/earth/fuel/fuel_type.rb
earth-0.6.6	lib/earth/fuel/fuel_type.rb
earth-0.6.5	lib/earth/fuel/fuel_type.rb
earth-0.6.4	lib/earth/fuel/fuel_type.rb
earth-0.6.3	lib/earth/fuel/fuel_type.rb
earth-0.6.2	lib/earth/fuel/fuel_type.rb
earth-0.6.1	lib/earth/fuel/fuel_type.rb
earth-0.6.0	lib/earth/fuel/fuel_type.rb