<?php

  class mw_data_versions extends mw_data{

    function version($application_name){
      if(
        $version = $this->data_read(
          array(
            "table_name" => "versions",
            "index_name" => "application",
            "index_value" => $application_name
          )
        )
      ) return $version["version"];
      return false;
    }

  }