Module: I18n::InterpolateNested

Defined in:
lib/i18n/interpolate_nested/railtie.rb,
lib/i18n/interpolate_nested/version.rb,
lib/i18n/interpolate_nested.rb

Constant Summary collapse

VERSION = 
"1.0.0"

Class Method Summary collapse

Class Method Details

.init ⇒ void

This method returns an undefined value.

Hooks into I18n and enables nested values when interpolating. This method is idempotent.



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# File 'lib/i18n/interpolate_nested.rb', line 12

def self.init
  return if defined?(@@initialized)

  original_handler = I18n.config.missing_interpolation_argument_handler
  I18n.config.missing_interpolation_argument_handler = ->(key, values, string) do
    keys = key.to_s.split(".")

    if keys.length > 1
      keys.reduce(values) do |vs, k|
        break original_handler.call(key, values, string) if vs.nil?
        vs[k.to_sym]
      end
    else
      original_handler.call(key, values, string)
    end
  end

  pattern = Regexp.union(I18n::INTERPOLATION_PATTERN, /%\{[\w.]+\}/)
  I18n.send(:remove_const, :INTERPOLATION_PATTERN)
  I18n.const_set(:INTERPOLATION_PATTERN, pattern)

  @@initialized = true
end