Module: ISO::Countries::CountryField::ClassMethods

Defined in:
lib/iso/countries/country_field.rb

Instance Method Summary collapse

Instance Method Details

#iso_country(*args) ⇒ Object

Declares a field from a model as a iso code for a country

Example:

class Company
  iso_country :country
end

c = Company.new(:country => "es")
c.country_name # => "Spain"
c.country_name = "France"
c.country # => "fr"



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# File 'lib/iso/countries/country_field.rb', line 21

def iso_country(*args)
  args.each do |f|
    class_eval <<-EOC
      
      validates_inclusion_of :#{f}, :in => ISO::Countries.country_codes, :allow_nil => true
      
      def #{f}_name
        ISO::Countries.get_country(#{f})
      end
      
      def #{f}_name=(name)
        code = ISO::Countries.get_code(name)
        if code
          self.#{f} = code
        else
          raise ArgumentError, "Invalid country name"
        end
      end              
      
    EOC
  end
end