Class: Eurovat

Inherits:
Object
  • Object
show all
Defined in:
lib/eurovat.rb,
lib/eurovat/version.rb

Defined Under Namespace

Classes: InvalidFormatError

Constant Summary collapse

SERVICE_URL = 
'http://ec.europa.eu/taxation_customs/vies/checkVatService.wsdl'.freeze
VAT_FORMAT = 
/\A([A-Z]{2})([0-9A-Za-z\+\*\.]{2,12})\Z/.freeze
EU_MEMBER_STATES =

Names must be consistent with the country_select plugin. If you know alternative country spellings please add them here.

[
  'Austria',
  'Belgium',
  'Bulgaria',
  'Cyprus',
  'Czech Republic',
  'Denmark',
  'Estonia',
  'Finland',
  'France',
  'Germany',
  'Greece',
  'Hungary',
  'Ireland',
  'Italy',
  'Latvia',
  'Lithuania',
  'Luxembourg',
  'Malta',
  'Netherlands',
  'Poland',
  'Portugal',
  'Romania',
  'Slovakia',
  'Slovenia',
  'Spain',
  'Sweden',
  'United Kingdom'
].freeze
VERSION_STRING = 
'1.0.3'
@@country = 
'Netherlands'
@@instance = 
nil

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Eurovat

Returns a new instance of Eurovat.



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# File 'lib/eurovat.rb', line 80

def initialize
  @country = @@country
  @mutex   = Mutex.new
  if defined?(SOAP)
    @driver = SOAP::WSDLDriverFactory.new(SERVICE_URL).create_rpc_driver
  else
    @driver = Savon::Client.new(SERVICE_URL)
  end
end

Class Method Details

.check_vat_number(vat_number) ⇒ Object 



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# File 'lib/eurovat.rb', line 75

def self.check_vat_number(vat_number)
  @@instance ||= new
  @@instance.check_vat_number(vat_number)
end

.country ⇒ Object 



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# File 'lib/eurovat.rb', line 50

def self.country
  @@country
end

.country=(val) ⇒ Object 



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# File 'lib/eurovat.rb', line 54

def self.country=(val)
  @@country = country
end

.must_charge_vat?(customer_country, vat_number) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/eurovat.rb', line 58

def self.must_charge_vat?(customer_country, vat_number)
  # http://www.belastingdienst.nl/reken/diensten_in_en_uit_het_buitenland/
  if customer_country == @@country
    true
  else
    if present?(vat_number)
      false
    else
      EU_MEMBER_STATES.include?(customer_country)
    end
  end
end

.sanitize_vat_number(vat_number) ⇒ Object 



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# File 'lib/eurovat.rb', line 71

def self.sanitize_vat_number(vat_number)
  vat_number.gsub(/[\s\t\.]/, '').upcase
end

Instance Method Details

#check_vat_number(vat_number) ⇒ Object

Any exception other than InvalidFormatError indicates that the service is down.



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# File 'lib/eurovat.rb', line 91

def check_vat_number(vat_number)
  vat_number = Eurovat.sanitize_vat_number(vat_number)
  if vat_number =~ VAT_FORMAT
    country_code = $1
    number = $2
    if @driver.respond_to?(:checkVat)
      @mutex.synchronize do
        begin
          result = @driver.checkVat(
            :countryCode => country_code,
            :vatNumber => number)
          result.valid == "true"
        rescue SOAP::FaultError => e
          if e.message == "INVALID_INPUT"
            raise InvalidFormatError, "#{vat_number.inspect} is not formatted like a valid VAT number"
          else
            raise e
          end
        end
      end
    else
      @mutex.synchronize do
        begin
          result = @driver.request(:checkVat) do
            soap.body = {
              :countryCode => country_code,
              :vatNumber => number
            }
          end
          result[:check_vat_response][:valid]
        rescue Savon::SOAP::Fault => e
          if e.message =~ /INVALID_INPUT/
            raise InvalidFormatError, "#{vat_number.inspect} is not formatted like a valid VAT number"
          else
            raise e
          end
        end
      end
    end
  else
    raise InvalidFormatError, "#{vat_number.inspect} is not formatted like a valid VAT number"
  end
end