Class: AutomobileActivityYearType
- Inherits:
-
ActiveRecord::Base
- Object
- ActiveRecord::Base
- AutomobileActivityYearType
- Extended by:
- Earth::Model
- Defined in:
- lib/earth/automobile/automobile_activity_year_type.rb
Constant Summary collapse
- TABLE_STRUCTURE =
<<-EOS CREATE TABLE automobile_activity_year_types ( name CHARACTER VARYING(255) NOT NULL PRIMARY KEY, activity_year INTEGER, type_name CHARACTER VARYING(255), hfc_emissions FLOAT, hfc_emissions_units CHARACTER VARYING(255), hfc_emission_factor FLOAT, hfc_emission_factor_units CHARACTER VARYING(255) ); EOS
Class Method Summary collapse
-
.find_by_type_name_and_closest_year(type_name, year) ⇒ Object
Used by Automobile and AutomobileTrip.
Instance Method Summary collapse
-
#activity_year_type_fuels ⇒ Object
for calculating hfc ef.
Methods included from Earth::Model
extend_mining, extended, registry
Class Method Details
.find_by_type_name_and_closest_year(type_name, year) ⇒ Object
Used by Automobile and AutomobileTrip
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# File 'lib/earth/automobile/automobile_activity_year_type.rb', line 26 def self.find_by_type_name_and_closest_year(type_name, year) candidates = where(:type_name => type_name) if year > (max_year = candidates.maximum(:activity_year)) candidates.where(:activity_year => max_year).first else candidates.where(:activity_year => [year, candidates.minimum(:activity_year)].max).first end end |
Instance Method Details
#activity_year_type_fuels ⇒ Object
for calculating hfc ef
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# File 'lib/earth/automobile/automobile_activity_year_type.rb', line 36 def activity_year_type_fuels AutomobileActivityYearTypeFuel.where(:activity_year => activity_year, :type_name => type_name) end |