Module: I18n::Backend::Fallbacks

extract_string_default!(options) click to toggle source

    # File lib/i18n/backend/fallbacks.rb, line 55
55:       def extract_string_default!(options)
56:         defaults = Array(options[:default])
57:         if index = find_first_string_default(defaults)
58:           options[:default] = defaults[0, index]
59:           defaults[index]
60:         end
61:       end

find_first_string_default(defaults) click to toggle source

    # File lib/i18n/backend/fallbacks.rb, line 63
63:       def find_first_string_default(defaults)
64:         defaults.each_index { |ix| return ix if String === defaults[ix] }
65:         nil
66:       end

translate(locale, key, options = {}) click to toggle source

Overwrites the Base backend translate method so that it will try each locale given by I18n.fallbacks for the given locale. E.g. for the locale :“de-DE” it might try the locales :“de-DE”, :de and :en (depends on the fallbacks implementation) until it finds a result with the given options. If it does not find any result for any of the locales it will then raise a MissingTranslationData exception as usual.

The default option takes precedence over fallback locales only when it’s not a String. When default contains String it is evaluated after fallback locales.

    # File lib/i18n/backend/fallbacks.rb, line 40
40:       def translate(locale, key, options = {})
41:         default = extract_string_default!(options) if options[:default]
42: 
43:         I18n.fallbacks[locale].each do |fallback|
44:           begin
45:             result = super(fallback, key, options)
46:             return result unless result.nil?
47:           rescue I18n::MissingTranslationData
48:           end
49:         end
50: 
51:         return super(locale, nil, options.merge(:default => default)) if default
52:         raise(I18n::MissingTranslationData.new(locale, key, options))
53:       end

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