Contents

require 'earth/model'

require 'earth/automobile/automobile_activity_year_type'

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

  TABLE_STRUCTURE = <<-EOS

CREATE TABLE automobile_activity_years
  (
     activity_year             INTEGER NOT NULL PRIMARY KEY,
     hfc_emission_factor       FLOAT,
     hfc_emission_factor_units CHARACTER VARYING(255)
  );

EOS

  self.primary_key = "activity_year"
  
  # for calculating hfc ef
  has_many :activity_year_types, :foreign_key => :activity_year, :primary_key => :activity_year, :class_name => 'AutomobileActivityYearType'
  
  # Used by Automobile and AutomobileTrip
  def self.find_by_closest_year(year)
    if year > maximum(:activity_year)
      where(:activity_year => maximum(:activity_year)).first
    else
      where(:activity_year => [year, minimum(:activity_year)].max).first
    end
  end
  
  warn_unless_size 15
end

Version data entries

7 entries across 7 versions & 1 rubygems

Version	Path
earth-1.2.1	lib/earth/automobile/automobile_activity_year.rb
earth-1.1.2	lib/earth/automobile/automobile_activity_year.rb
earth-1.1.1	lib/earth/automobile/automobile_activity_year.rb
earth-1.1.0	lib/earth/automobile/automobile_activity_year.rb
earth-1.0.3	lib/earth/automobile/automobile_activity_year.rb
earth-1.0.2	lib/earth/automobile/automobile_activity_year.rb
earth-1.0.1	lib/earth/automobile/automobile_activity_year.rb