TinyTDS wrapper for Connection Pool gem

tiny_tds_wrapper.rb

class TinyTdsWrapper
  def initialize(config)
    @config = config
    @client = nil
  end

  def method_missing(method_name, *args, &block)
    connect!
    begin
      @client.send(method_name, *args, &block)
    rescue TinyTds::Error => e
      disconnect!
      raise e
    end
  end

  def connect!
    disconnect! unless active?
    @client ||= TinyTds::Client.new(@config)
  end

  def disconnect!
    @client.close if @client
    @client = nil
  end

  def active?
    @client && @client.active?
  end
end