class NationalTransitDatabaseCompany
Constants
- TABLE_STRUCTURE
Public Class Methods
rail_companies()
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# File lib/earth/rail/national_transit_database_company.rb, line 27 def self.rail_companies NationalTransitDatabaseRecord.rail_records.map(&:ntd_company).uniq end
Public Instance Methods
rail_records()
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# File lib/earth/rail/national_transit_database_company.rb, line 31 def rail_records ntd_records.where(:mode_code => NationalTransitDatabaseMode.rail_modes) end