Sha256: 5384f6ed0dcba786bb2a36451be5e850a954709263ae1a8f211840c4d9ea6328
Contents?: true
Size: 1.92 KB
Versions: 10
Compression:
Stored size: 1.92 KB
Contents
# encoding: utf-8
# This module allows you to easily cache all responses from the backend - thus
# speeding up the I18n aspects of your application quite a bit.
#
# To enable caching you can simply include the Cache module to the Simple
# backend - or whatever other backend you are using:
#
# I18n::Backend::Simple.send(:include, I18n::Backend::Cache)
#
# You will also need to set a cache store implementation that you want to use:
#
# I18n.cache_store = ActiveSupport::Cache.lookup_store(:memory_store)
#
# You can use any cache implementation you want that provides the same API as
# ActiveSupport::Cache (only the methods #fetch and #write are being used).
#
# The cache_key implementation assumes that you only pass values to
# I18n.translate that return a valid key from #hash (see
# http://www.ruby-doc.org/core/classes/Object.html#M000337).
module I18n
class << self
@@cache_store = nil
@@cache_namespace = nil
def cache_store
@@cache_store
end
def cache_store=(store)
@@cache_store = store
end
def cache_namespace
@@cache_namespace
end
def cache_namespace=(namespace)
@@cache_namespace = namespace
end
def perform_caching?
!cache_store.nil?
end
end
module Backend
module Cache
def translate(*args)
I18n.perform_caching? ? fetch(*args) { super } : super
end
protected
def fetch(*args, &block)
result = I18n.cache_store.fetch(cache_key(*args), &block)
raise result if result.is_a?(Exception)
result
rescue MissingTranslationData => exception
I18n.cache_store.write(cache_key(*args), exception)
raise exception
end
def cache_key(*args)
# this assumes that only simple, native Ruby values are passed to I18n.translate
keys = ['i18n', I18n.cache_namespace, args.hash]
keys.compact.join('-')
end
end
end
end
Version data entries
10 entries across 10 versions & 5 rubygems