class CbecsEnergyIntensity
Constants
- FUELS
- TABLE_STRUCTURE
Public Class Methods
find_by_naics_code(code)
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Find the first record whose naics_code matches code. If no record found chop off the last character of code and try again, and so on.
# File lib/earth/industry/cbecs_energy_intensity.rb, line 77 def self.find_by_naics_code(code) find_by_naics_code_and_census_field(code, :census_region_number, nil) end
find_by_naics_code_and_census_division_number(code, number)
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Find the first record whose census_division_number matches number and whose naics_code matches code. If no record found chop off the last character of code and try again, and so on.
# File lib/earth/industry/cbecs_energy_intensity.rb, line 89 def self.find_by_naics_code_and_census_division_number(code, number) find_by_naics_code_and_census_field(code, :census_division_number, number) end
find_by_naics_code_and_census_field(code, field, number)
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# File lib/earth/industry/cbecs_energy_intensity.rb, line 93 def self.find_by_naics_code_and_census_field(code, field, number) if code.blank? record = nil else record = where(field => number, :naics_code => code).first record ||= find_by_naics_code_and_census_field(code[0..-2], field, number) end record end
find_by_naics_code_and_census_region_number(code, number)
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Find the first record whose census_region_number matches number and whose naics_code matches code. If no record found chop off the last character of code and try again, and so on.
# File lib/earth/industry/cbecs_energy_intensity.rb, line 83 def self.find_by_naics_code_and_census_region_number(code, number) find_by_naics_code_and_census_field(code, :census_region_number, number) end
Public Instance Methods
fuel_ratios()
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# File lib/earth/industry/cbecs_energy_intensity.rb, line 103 def fuel_ratios energy = 0 FUELS.keys.each { |fuel| energy += send(fuel).to_f } FUELS.keys.inject({}) do |ratios, fuel| ratios[fuel] = send(fuel).to_f / energy.to_f ratios end end