# This extension stores translation stub records for missing translations to # the database. # # This is useful if you have a web based translation tool. It will populate # the database with untranslated keys as the application is being used. A # translator can then go through these and add missing translations. # # Example usage: # # I18n::Backend::Chain.send(:include, I18n::Backend::ActiveRecord::Missing) # I18n.backend = I18n::Backend::Chain.new(I18n::Backend::ActiveRecord.new, I18n::Backend::Simple.new) # # Stub records for pluralizations will also be created for each key defined # in i18n.plural.keys. # # For example: # # # en.yml # en: # i18n: # plural: # keys: [:zero, :one, :other] # # # pl.yml # pl: # i18n: # plural: # keys: [:zero, :one, :few, :other] # # It will also persist interpolation keys in Translation#interpolations so # translators will be able to review and use them. module I18n module Backend class ActiveRecord module Missing include Flatten def store_default_translations(locale, key, options = {}) count, scope, default, separator = options.values_at(:count, :scope, :default, :separator) separator ||= I18n.default_separator key = normalize_flat_keys(locale, key, scope, separator) unless ActiveRecord::Translation.locale(locale).lookup(key).exists? interpolations = options.keys - I18n::RESERVED_KEYS keys = count ? I18n.t('i18n.plural.keys', :locale => locale).map { |k| [key, k].join(FLATTEN_SEPARATOR) } : [key] keys.each { |key| store_default_translation(locale, key, interpolations) } end end def store_default_translation(locale, key, interpolations) translation = ActiveRecord::Translation.new :locale => locale.to_s, :key => key translation.interpolations = interpolations translation.save end def translate(locale, key, options = {}) result = catch(:exception) { super } if result.is_a?(I18n::MissingTranslation) self.store_default_translations(locale, key, options) throw(:exception, result) else result end end end end end end