mastodon/app/validators/language_validator.rb

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# frozen_string_literal: true
class LanguageValidator < ActiveModel::EachValidator
include LanguagesHelper
def validate_each(record, attribute, value)
record.errors.add(attribute, :invalid) unless valid?(value)
end
private
def valid?(str)
if str.nil?
true
elsif str.is_a?(Array)
str.all? { |x| valid_locale?(x) }
else
valid_locale?(str)
end
end
end