A Dynamic way to Use Pluralization in ruby on rails for Arabic or English Localization

In pluralization The English pluralized english translations must have 2 keys: one  and other , one for signular, e.g. one: person and other for plural: other: people

For Arabic arabic plural forms are way more complex, so we have to define following keys: zero one  two few many other

For Example Like Below

We need to defined some rule in Arabic Plural so We defined Like Below In special_rule.rb module 

module SpecialRules
  module Arabic
    PLURALIZE = ->(n) do
      case n
      when 0
        :zero
      when 1
        :one
      when 2
        :two
      else
        if (n % 100).in?(10..20)
          :few
        elsif (n % 100).in?(21..99)
          :many
        else
          :other
        end
      end
    end
  end
end

{
  ar: {
    i18n: {
      plural: {
        keys: [:zero, :one, :two, :few, :many, :other],
        rule: SpecialRules::Arabic::PLURALIZE
      },
      transliterate: {
        rule: ->(input) { input.to_s.tr("0123456789.", "٠١٢٣٤٥٦٧٨٩٫") }
      }
    }
  },
  en: {
    i18n: {
      transliterate: {
        rule: ->(input) { input.to_s.tr("٠١٢٣٤٥٦٧٨٩٫", "0123456789.") }
      }
    }
  }
}

Then need to update the ar.yml file

computable:
    item:
      zero: "٠ عنصر"
      one: "١ عنصر"
      two: "عنصرين"
      few: "%{localized_count} عناصر"
      many: "%{localized_count} عنصر"
      other: "%{localized_count} عناصر"

For English We just need to defined en.yml 

computable:
    item:
      one: 1 item
      other: "%{localized_count} items"

Now You can acces those Pluralization in both the langauges

I18n.translate('computable.one', count: 1, localized_count: I18n.transliterate(1.to_s, locale: :ar), locale: :ar) 

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