I18n::Backend::Pluralization

Public Instance Methods

pluralize(locale, entry, count) click to toggle source

Overwrites the Base backend translate method so that it will check the translation meta data space (:i18n) for a locale specific pluralization rule and use it to pluralize the given entry. I.e. the library expects pluralization rules to be stored at I18n.t(:’i18n.plural.rule’)

Pluralization rules are expected to respond to #(entry, count) and return a pluralization key. Valid keys depend on the translation data hash (entry) but it is generally recommended to follow CLDR’s style, i.e., return one of the keys :zero, :one, :few, :many, :other.

The :zero key is always picked directly when count equals 0 AND the translation data has the key :zero. This way translators are free to either pick a special :zero translation even for languages where the pluralizer does not return a :zero key.

    # File lib/i18n/backend/pluralization.rb, line 33
33:       def pluralize(locale, entry, count)
34:         return entry unless entry.is_a?(Hash) and count
35: 
36:         pluralizer = pluralizer(locale)
37:         if pluralizer.respond_to?(:call)
38:           key = count == 0 && entry.has_key?(:zero) ? :zero : pluralizer.call(count)
39:           raise InvalidPluralizationData.new(entry, count) unless entry.has_key?(key)
40:           entry[key]
41:         else
42:           super
43:         end
44:       end

Protected Instance Methods

pluralizer(locale) click to toggle source
    # File lib/i18n/backend/pluralization.rb, line 52
52:         def pluralizer(locale)
53:           pluralizers[locale] ||= I18n.t(:'i18n.plural.rule', :locale => locale, :resolve => false)
54:         end
pluralizers() click to toggle source
    # File lib/i18n/backend/pluralization.rb, line 48
48:         def pluralizers
49:           @pluralizers ||= {}
50:         end

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