Class: Brut::FrontEnd::RouteHooks::LocaleDetection

Inherits:
Brut::FrontEnd::RouteHook show all
Defined in:
lib/brut/front_end/route_hooks/locale_detection.rb

Overview

Detects the user's locale from the Accept-Language header and, if one of the locales has been set up in this app, configured Ruby's I18n to use it. This will also store the value in the session via Session#http_accept_language=.

See Also:

Instance Method Summary collapse

Methods inherited from Brut::FrontEnd::RouteHook

#after, #continue

Methods included from Brut::Framework::Errors

#abstract_method!, #bug!

Methods included from HandlingResults

#http_status, #redirect_to

Instance Method Details

#before(session:, env:) ⇒ Object 



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# File 'lib/brut/front_end/route_hooks/locale_detection.rb', line 6

def before(session:,env:)
  http_accept_language = Brut::I18n::HTTPAcceptLanguage.from_header(env["HTTP_ACCEPT_LANGUAGE"])
  if !session.http_accept_language.known?
    session.http_accept_language = http_accept_language
  end
  best_locale = nil
  session.http_accept_language.weighted_locales.each do |weighted_locale|
    if ::I18n.available_locales.include?(weighted_locale.locale.to_sym)
      best_locale = weighted_locale.locale.to_sym
      break
    elsif ::I18n.available_locales.include?(weighted_locale.primary_only.locale.to_sym)
      best_locale = weighted_locale.primary_only.locale.to_sym
      break
    end
  end
  if best_locale
    Brut.container.instrumentation.add_attributes(prefix: "brut.locale-detection", best_locale:)
    ::I18n.locale = best_locale
  else
    Brut.container.instrumentation.add_attributes(prefix: "brut.locale-detection", best_locale: false)
  end
  continue
end