Class: TranslationValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
lib/zlocalize/rails/translation_validator.rb

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ TranslationValidator

Returns a new instance of TranslationValidator.



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# File 'lib/zlocalize/rails/translation_validator.rb', line 3

def initialize(options = {})
  # create a virtual attribute accessor for the expected translations
  options[:attributes].each do |attr_name|
    options[:class].attr_accessor attr_name
  end
  super
end

Instance Method Details

#evaluate_required_locales(locales, record, attr_name, value) ⇒ Object 



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# File 'lib/zlocalize/rails/translation_validator.rb', line 11

def evaluate_required_locales(locales,record,attr_name,value)
  case locales
    when Symbol then record.send(locales)
    when Array  then locales
    when String then [locales]
    else
       if locales.respond_to?("call")
          args = [record,attr_name,value].slice(0,locales.arity)
          locales.call(*args)
       else
          raise(
            ActiveRecord::ActiveRecordError,
            "Required locales need to be either an Array instance, a symbol/string (method to be called on the instance) " +
            "or a proc/method that returns an Array of locale codes"
          )
       end
  end
end

#validate_each(record, attr_name, value) ⇒ Object 



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# File 'lib/zlocalize/rails/translation_validator.rb', line 30

def validate_each(record, attr_name, value)
  configuration = { :message => :missing_translations,
                    :required_locales => record.respond_to?(:get_required_locales) ? :get_required_locales : [] }
  configuration.update(options)
  locales = evaluate_required_locales(configuration[:required_locales],record,attr_name,value)
  missing_locales = []
  if locales.is_a?(Array)
    locales.each do |loc|
      begin
        s = record.translate(attr_name.to_sym,loc)
      rescue ZLocalize::Translatable::TranslationError
        s = nil
      end
      missing_locales << loc if s.blank?
    end
  end
  if missing_locales.size > 0
    record.errors.add(attr_name, :missing_translation, :message => configuration[:message], :locales => missing_locales.to_sentence)
  end
end