discourse/lib/validators/unicode_username_validator.rb

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# frozen_string_literal: true
class UnicodeUsernameValidator
def initialize(opts = {})
@opts = opts
end
def valid_value?(value)
@valid = SiteSetting.external_system_avatars_enabled || value == "f"
end
def error_message
I18n.t("site_settings.errors.unicode_usernames_avatars") if !@valid
end
end