35 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			35 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Ruby
		
	
	
	
# frozen_string_literal: true
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module Localized
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  extend ActiveSupport::Concern
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  included do
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    around_action :set_locale
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  end
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  def set_locale(&block)
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    I18n.with_locale(requested_locale || I18n.default_locale, &block)
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  end
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  private
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  def requested_locale
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    requested_locale_name   = available_locale_or_nil(params[:lang])
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    requested_locale_name ||= available_locale_or_nil(current_user.locale) if respond_to?(:user_signed_in?) && user_signed_in?
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    requested_locale_name ||= http_accept_language if ENV['DEFAULT_LOCALE'].blank?
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    requested_locale_name
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  end
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  def http_accept_language
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    HttpAcceptLanguage::Parser.new(request.headers.fetch('Accept-Language')).language_region_compatible_from(I18n.available_locales) if request.headers.key?('Accept-Language')
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  end
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  def available_locale_or_nil(locale_name)
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    locale_name.to_sym if locale_name.respond_to?(:to_sym) && I18n.available_locales.include?(locale_name.to_sym)
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  end
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  def content_locale
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    @content_locale ||= I18n.locale.to_s.split(/[_-]/).first
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  end
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end
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