discourse/config/initializers/i18n.rb

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# order: after 02-freedom_patches.rb
# Include pluralization module
require 'i18n/backend/pluralization'
I18n::Backend::Simple.send(:include, I18n::Backend::Pluralization)
# Include fallbacks module
require 'i18n/backend/fallbacks'
I18n.backend.class.send(:include, I18n::Backend::Fallbacks)
# Configure custom fallback order
class FallbackLocaleList < Hash
def [](locale)
# user locale, site locale, english
# TODO - this can be extended to be per-language for a better user experience
# (e.g. fallback zh_TW to zh_CN / vice versa)
[locale, SiteSetting.default_locale.to_sym, :en].uniq.compact
end
def ensure_loaded!
self[I18n.locale].each { |l| I18n.ensure_loaded! l }
end
end
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class NoFallbackLocaleList < FallbackLocaleList
def [](locale)
[locale]
end
end
if Rails.env.development?
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I18n.fallbacks = NoFallbackLocaleList.new
else
I18n.fallbacks = FallbackLocaleList.new
I18n.config.missing_interpolation_argument_handler = proc { throw(:exception) }
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end