Module: ActiveVersion::Translations::HasTranslations::ClassMethods

Defined in:
lib/active_version/translations/has_translations.rb

Instance Method Summary collapse

Instance Method Details

#scope_for_translated_attribute(attribute_name, value, locale: I18n.locale) ⇒ Object

Scope for translated attribute



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# File 'lib/active_version/translations/has_translations.rb', line 131

def scope_for_translated_attribute(attribute_name, value, locale: I18n.locale)
  foreign_key = if translation_class.respond_to?(:source_foreign_key)
    translation_class.source_foreign_key
  else
    "#{name.underscore}_id"
  end
  identity_columns = Array(foreign_key).map(&:to_s)
  scope = translation_class.where(locale: locale).where(attribute_name => value)

  if identity_columns.one?
    ids = scope.select(identity_columns.first)
    where(id: ids)
  else
    ids = scope.pluck(*identity_columns)
    where(primary_key => ids)
  end
end

#translated_copies(*attribute_names) ⇒ Object

Auto-generate copy methods for translated attributes



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# File 'lib/active_version/translations/has_translations.rb', line 164

def translated_copies(*attribute_names)
  define_method(:copy_values_from_translation) do
    attribute_names.each do |attribute_name|
      if respond_to?(:will_save_change_to_attribute?) && will_save_change_to_attribute?(attribute_name)
        next
      end
      if respond_to?(:attribute_changed?) && attribute_changed?(attribute_name)
        next
      end
      next if self[attribute_name].present?

      value = translate(attribute_name, locale: I18n.default_locale).presence
      value ||= translations.first&.send(attribute_name)
      self[attribute_name] = value if value.present?
    end
  end
end

#translated_scopes(*attribute_names) ⇒ Object

Auto-generate scopes for translated attributes



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# File 'lib/active_version/translations/has_translations.rb', line 150

def translated_scopes(*attribute_names)
  attribute_names.each do |attribute_name|
    define_singleton_method(:"for_translated_#{attribute_name}") do |value, locale: I18n.locale|
      scope_for_translated_attribute(attribute_name, value, locale: locale)
    end

    define_singleton_method(:"find_by_translated_#{attribute_name}") do |value, locale: I18n.locale|
      scope_for_translated_attribute(attribute_name, value, locale: locale)
        .first || find_by(attribute_name => value)
    end
  end
end