Module: FlexibleDate

Defined in:
lib/flexible_date.rb

Instance Method Summary collapse

Instance Method Details

#flexible_date(*params) ⇒ Object



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# File 'lib/flexible_date.rb', line 3

def flexible_date(*params)
  params.last.kind_of?(Hash) ? (options, fields = params.pop, params) : (options, fields = {}, params)
  suffix = options[:suffix] || "flex"
  condition = options[:if]

  fields.each do |field|
    normalized_field = normalize(field, suffix)

    unless methods.include?(:flexible_date_validations)
      validate :flexible_date_validations

      define_method :flexible_date_validations do
        if @flexible_date_errors
          @flexible_date_errors.each do |f, message|
            errors.add(f, message)
          end
        end
      end
    end

    define_method "#{normalized_field}_#{suffix}" do
      format = I18n.t("flexible_date.configuration.format")
      date = self.send("#{normalized_field}")
      date.try(:strftime, format)
    end

    define_method "#{normalized_field}_#{suffix}=" do |value|
      try_t = lambda do |option1, option2|
        begin
          I18n.t option1, :raise => true
        rescue I18n::MissingTranslationData
          I18n.t option2
        end
      end

      @flexible_date_errors ||= {}
      if condition and not condition.call(self)
        @flexible_date_errors["#{normalized_field}".to_sym] = try_t.call(
          "flexible_date.messages.without_suffix.invalid",
          "flexible_date.messages.invalid")
        @flexible_date_errors["#{normalized_field}_#{suffix}".to_sym] = try_t.call(
          "flexible_date.messages.with_suffix.invalid",
          "flexible_date.messages.invalid")
      else
        begin
          format = I18n.t("flexible_date.configuration.format")
          self.send("#{normalized_field}=", value.blank? ? "" : Date.strptime(value, format))
        rescue ArgumentError
          self.send("#{normalized_field}=", nil)
          @flexible_date_errors["#{normalized_field}".to_sym] = try_t.call(
            "flexible_date.messages.without_suffix.invalid",
            "flexible_date.messages.invalid")
          @flexible_date_errors["#{normalized_field}_#{suffix}".to_sym] = try_t.call(
            "flexible_date.messages.with_suffix.invalid",
            "flexible_date.messages.invalid")
        end
      end
    end
  end
end