ruby on rails - How to get all translations from all I18n backends -


i'm creating rake task collect translations existing in rails application , output them file in format (probably yaml of csv).

is there way translations using built-in (or in gem) methods?

currently, best think of iterating on i18n.backend.backends check class , based on perform different actions , in end merge single hash.

something like

all_translations = {} i18n.backend.backends.each |backend|   if backend.class == simple     translations = backend.send(:translations)     # etc   elsif backend.class == keyvalue     # else   else     # ...   end end

not backends conform same interface (which in opinion pretty horrible), can accomplish need through either monkey-patching or creating own backend based off of 1 of built-in i18n backends.

for example, wanted have redis backend falls default rails i18n backend, , needed work i18n-js gem. since keyvalue backend allows translations entire subtree, possible simulate "translations" method long store under top level key. it's simple doing: backend.translate(:en, 'top-level-key')"

# config/initializers/custom_i18n.js module customi18n   def self.backend     backend::chain.new   end    module backend     class chain < i18n::backend::chain       def initialize         super(redisstore.new, i18n::backend::simple.new)       end        def initialized?         backends.all? |backend|           !backend.respond_to?(:initialized?) || backend.initialized?         end       end        protected        def translations         backends.each_with_object({}) |backend, hash|           backend.instance_eval             if respond_to?(:translations, true)               hash.deep_merge! translations             else               available_locales.each |locale|                 translations = translate(locale, redisstore::scope, :scope => nil) rescue argumenterror                 hash.deep_merge!({ locale => translations }) if translations               end             end           end         end       end     end      class redisstore < i18n::backend::keyvalue       scope = 'redis'        def initialize(*args)         super(redis.new)       end        def translate(*args)         args << {} unless args.last.is_a?(hash)         args.last[:scope] = scope unless args.last.has_key?(:scope)         super       end        def store_translations(locale, data, options = {})         super(locale, { scope => data }, options)       end     end   end end  i18n.backend = customi18n.backend

so, approach, can like:

redis_backend = i18n.backend.backends.find { |backend| backend.is_a?(customi18n::backend::redisstore) } redis_backend.store_translations(:en, {:foo => { :bar => { :baz => 'qux' } } })

and automatically gets stored under top level key of "redis", can access variety of different ways:

> i18n.backend.send(:translations)[:en][:foo] => {:bar=>{:baz=>"qux"}}  > i18n.t('foo') i18n keys: [:en, :foo]  => {:bar=>{:baz=>"qux"}}

but if @ redis, can see it's stored under top level key:

> redis.new.get('en.redis')  => "{\"foo\":{\"bar\":{\"baz\":\"qux\"}}}"

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