discourse/lib/validators/timezone_validator.rb

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# frozen_string_literal: true
class TimezoneValidator < ActiveModel::EachValidator
def self.valid?(value)
ok = ActiveSupport::TimeZone[value].present?
Rails.logger.warn("Invalid timezone '#{value}' detected!") if !ok
ok
end
def self.error_message(value)
I18n.t("errors.messages.invalid_timezone", tz: value)
end
def validate_each(record, attribute, value)
return if value.blank? || TimezoneValidator.valid?(value)
record.errors.add(attribute, :timezone, message: TimezoneValidator.error_message(value))
end
end