X-Git-Url: https://review.fuel-infra.org/gitweb?a=blobdiff_plain;ds=sidebyside;f=lib%2Fmcollective%2Fvendor%2Fi18n%2Flib%2Fi18n%2Fbackend%2Fkey_value.rb;fp=lib%2Fmcollective%2Fvendor%2Fi18n%2Flib%2Fi18n%2Fbackend%2Fkey_value.rb;h=c34b797c969827767a44608b3090fe1249462020;hb=b87d2f4e68281062df1913440ca5753ae63314a9;hp=0000000000000000000000000000000000000000;hpb=ab0ea530b8ac956091f17b104ab2311336cfc250;p=packages%2Fprecise%2Fmcollective.git diff --git a/lib/mcollective/vendor/i18n/lib/i18n/backend/key_value.rb b/lib/mcollective/vendor/i18n/lib/i18n/backend/key_value.rb new file mode 100644 index 0000000..c34b797 --- /dev/null +++ b/lib/mcollective/vendor/i18n/lib/i18n/backend/key_value.rb @@ -0,0 +1,101 @@ +require 'i18n/backend/base' +require 'active_support/json' +require 'active_support/ordered_hash' # active_support/json/encoding uses ActiveSupport::OrderedHash but does not require it + +module I18n + module Backend + # This is a basic backend for key value stores. It receives on + # initialization the store, which should respond to three methods: + # + # * store#[](key) - Used to get a value + # * store#[]=(key, value) - Used to set a value + # * store#keys - Used to get all keys + # + # Since these stores only supports string, all values are converted + # to JSON before being stored, allowing it to also store booleans, + # hashes and arrays. However, this store does not support Procs. + # + # As the ActiveRecord backend, Symbols are just supported when loading + # translations from the filesystem or through explicit store translations. + # + # Also, avoid calling I18n.available_locales since it's a somehow + # expensive operation in most stores. + # + # == Example + # + # To setup I18n to use TokyoCabinet in memory is quite straightforward: + # + # require 'rufus/tokyo/cabinet' # gem install rufus-tokyo + # I18n.backend = I18n::Backend::KeyValue.new(Rufus::Tokyo::Cabinet.new('*')) + # + # == Performance + # + # You may make this backend even faster by including the Memoize module. + # However, notice that you should properly clear the cache if you change + # values directly in the key-store. + # + # == Subtrees + # + # In most backends, you are allowed to retrieve part of a translation tree: + # + # I18n.backend.store_translations :en, :foo => { :bar => :baz } + # I18n.t "foo" #=> { :bar => :baz } + # + # This backend supports this feature by default, but it slows down the storage + # of new data considerably and makes hard to delete entries. That said, you are + # allowed to disable the storage of subtrees on initialization: + # + # I18n::Backend::KeyValue.new(@store, false) + # + # This is useful if you are using a KeyValue backend chained to a Simple backend. + class KeyValue + module Implementation + attr_accessor :store + + include Base, Flatten + + def initialize(store, subtrees=true) + @store, @subtrees = store, subtrees + end + + def store_translations(locale, data, options = {}) + escape = options.fetch(:escape, true) + flatten_translations(locale, data, escape, @subtrees).each do |key, value| + key = "#{locale}.#{key}" + + case value + when Hash + if @subtrees && (old_value = @store[key]) + old_value = ActiveSupport::JSON.decode(old_value) + value = old_value.deep_symbolize_keys.deep_merge!(value) if old_value.is_a?(Hash) + end + when Proc + raise "Key-value stores cannot handle procs" + end + + @store[key] = ActiveSupport::JSON.encode([value]) unless value.is_a?(Symbol) + end + end + + def available_locales + locales = @store.keys.map { |k| k =~ /\./; $` } + locales.uniq! + locales.compact! + locales.map! { |k| k.to_sym } + locales + end + + protected + + def lookup(locale, key, scope = [], options = {}) + key = normalize_flat_keys(locale, key, scope, options[:separator]) + value = @store["#{locale}.#{key}"] + value = ActiveSupport::JSON.decode(value)[0] if value + value.is_a?(Hash) ? value.deep_symbolize_keys : value + end + end + + include Implementation + end + end +end