class GettextI18nRails::Backend

translates i18n calls to gettext calls

Attributes

backend[RW]

Public Class Methods

new(*args) click to toggle source
# File lib/gettext_i18n_rails/backend.rb, line 8
def initialize(*args)
  self.backend = I18n::Backend::Simple.new(*args)
end

Public Instance Methods

available_locales() click to toggle source
# File lib/gettext_i18n_rails/backend.rb, line 12
def available_locales
  FastGettext.available_locales || []
end
method_missing(method, *args) click to toggle source
# File lib/gettext_i18n_rails/backend.rb, line 34
def method_missing(method, *args)
  backend.send(method, *args)
end
translate(locale, key, options) click to toggle source
# File lib/gettext_i18n_rails/backend.rb, line 16
def translate(locale, key, options)
  I18n.with_locale(locale) do
    if gettext_key = gettext_key(key, options)
      translation =
        plural_translate(gettext_key, options) || FastGettext._(gettext_key)
      interpolate(translation, options)
    else
      result = backend.translate(locale, key, options)
      if result.is_a?(String)
       result = result.dup if result.frozen?
       result.force_encoding("UTF-8")
      else
        result
      end
    end
  end
end

Protected Instance Methods

discard_pass_through_key(key, translation) click to toggle source
# File lib/gettext_i18n_rails/backend.rb, line 64
def discard_pass_through_key(key, translation)
  if translation == key
    nil
  else
    translation
  end
end
flatten_key(key, options) click to toggle source
# File lib/gettext_i18n_rails/backend.rb, line 87
def flatten_key key, options
  scope = [*(options[:scope] || [])]
  scope.empty? ? key.to_s : "#{scope*'.'}.#{key}"
end
gettext_key(key, options) click to toggle source
# File lib/gettext_i18n_rails/backend.rb, line 40
def gettext_key(key, options)
  flat_key = flatten_key key, options
  if FastGettext.key_exist?(flat_key)
    flat_key
  elsif self.class.translate_defaults
    [*options[:default]].each do |default|
      #try the scoped(more specific) key first e.g. 'activerecord.errors.my custom message'
      flat_key = flatten_key default, options
      return flat_key if FastGettext.key_exist?(flat_key)

      #try the short key thereafter e.g. 'my custom message'
      return default if FastGettext.key_exist?(default)
    end
    return nil
  end
end
interpolate(string, values) click to toggle source
# File lib/gettext_i18n_rails/backend.rb, line 72
def interpolate(string, values)
  if string.respond_to?(:%)
    reserved_keys = if defined?(I18n::RESERVED_KEYS) # rails 3+
      I18n::RESERVED_KEYS
    else
      I18n::Backend::Base::RESERVED_KEYS
    end

    options = values.except(*reserved_keys)
    options.any? ? (string % options) : string
  else
    string
  end
end
plural_translate(gettext_key, options) click to toggle source
# File lib/gettext_i18n_rails/backend.rb, line 57
def plural_translate(gettext_key, options)
  if options[:count]
    translation = FastGettext.n_(gettext_key, options[:count])
    discard_pass_through_key gettext_key, translation
  end
end