bf22c69286
Don't include locales which only have rails translations in the candidates, and ensure that user specified options take priority over less specific variants of earlier choices.
54 lines
1.5 KiB
Ruby
54 lines
1.5 KiB
Ruby
class Locale < I18n::Locale::Tag::Rfc4646
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class List < Array
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attr_reader :locales
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def initialize(tags)
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super(tags.map { |tag| Locale.tag(tag) }).compact!
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end
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def candidates(preferred)
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preferred.expand & self
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end
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def preferred(preferred)
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candidates(preferred).first
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end
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def expand
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List.new(reverse.each_with_object([]) do |locale, expanded|
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locale.candidates.uniq.reverse_each do |candidate|
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expanded << candidate if candidate == locale || !expanded.include?(candidate)
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end
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end.reverse.uniq << Locale.default)
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end
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end
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def self.list(*tags)
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List.new(tags.flatten)
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end
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def self.default
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tag(I18n.default_locale)
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end
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def self.available
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@available ||= List.new(I18n.available_locales).reject!(&:invalid?)
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end
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def invalid?
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I18n.t("activerecord.models.acl", :locale => self, :fallback => false, :raise => true).nil?
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rescue I18n::MissingTranslationData
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true
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end
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def candidates
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List.new([self.class.new(language, script, region, variant),
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self.class.new(language, script, region),
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self.class.new(language, script, nil, variant),
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self.class.new(language, script),
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self.class.new(language, nil, region, variant),
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self.class.new(language, nil, region),
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self.class.new(language, nil, nil, variant),
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self.class.new(language)])
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end
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end
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