I18n::Backend::Cache

TODO Should the cache be cleared if new translations are stored?

Constants

USE_INSPECT_HASH

In Ruby < 1.9 the following is true: { :foo => 1, :bar => 2 }.hash == { :foo => 2, :bar => 1 }.hash Therefore we must use the hash of the inspect string instead to avoid cache key colisions.

Public Instance Methods

translate(locale, key, options = {}) click to toggle source
# File lib/i18n/backend/cache.rb, line 65
def translate(locale, key, options = {})
  I18n.perform_caching? ? fetch(cache_key(locale, key, options)) { super } : super
end

Protected Instance Methods

_fetch(cache_key, &block) click to toggle source
# File lib/i18n/backend/cache.rb, line 78
def _fetch(cache_key, &block)
  result = I18n.cache_store.read(cache_key) and return result
  result = catch(:exception, &block)
  I18n.cache_store.write(cache_key, result) unless result.is_a?(Proc)
  result
end
cache_key(locale, key, options) click to toggle source
# File lib/i18n/backend/cache.rb, line 85
def cache_key(locale, key, options)
  # This assumes that only simple, native Ruby values are passed to I18n.translate.
  "i18n/#{I18n.cache_namespace}/#{locale}/#{key.hash}/#{USE_INSPECT_HASH ? options.inspect.hash : options.hash}"
end
fetch(cache_key, &block) click to toggle source
# File lib/i18n/backend/cache.rb, line 71
def fetch(cache_key, &block)
  result = _fetch(cache_key, &block)
  throw(:exception, result) if result.is_a?(MissingTranslation)
  result = result.dup if result.frozen? rescue result
  result
end

[Validate]

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