Class: Fuel

Inherits:
ActiveRecord::Base
  • Object
show all
Extended by:
Earth::Model
Defined in:
lib/earth/fuel/fuel.rb

Constant Summary collapse

TABLE_STRUCTURE = 
<<-EOS

CREATE TABLE fuels
  (
     name                               CHARACTER VARYING(255) NOT NULL PRIMARY KEY,
     physical_units                     CHARACTER VARYING(255),
     density                            FLOAT,
     density_units                      CHARACTER VARYING(255),
     energy_content                     FLOAT,
     energy_content_units               CHARACTER VARYING(255),
     carbon_content                     FLOAT,
     carbon_content_units               CHARACTER VARYING(255),
     oxidation_factor                   FLOAT,
     biogenic_fraction                  FLOAT,
     co2_emission_factor                FLOAT,
     co2_emission_factor_units          CHARACTER VARYING(255),
     co2_biogenic_emission_factor       FLOAT,
     co2_biogenic_emission_factor_units CHARACTER VARYING(255)
  );

EOS

Instance Method Summary collapse

Methods included from Earth::Model

extend_mining, extended, registry

Instance Method Details

#latest_fuel_year ⇒ Object 



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# File 'lib/earth/fuel/fuel.rb', line 40

def latest_fuel_year
  fuel_years.find_by_year fuel_years.maximum(:year)
end