thetool/application/ContractconfiggroupProductgroup/ContractconfiggroupProductgroup.php

<?php

class ContractconfiggroupProductgroup extends mfBaseModel {
  private $productgroup;
  private $contractconfiggroup;
  
  public function getProperty($name) {
    if($this->$name == null) {
      
      if(!$this->id) {
        return null;
      }
      
      if($name == "productgroup") {
        $this->productgroup = new Productgroup($this->productgroup_id);
        return $this->productgroup;
      }
      
      if($name == "contractconfiggroup") {
        $this->contractconfiggroup = new ContractconfigGroup($this->contractconfiggroup_id);
        return $this->contractconfiggroup;
      }
      
      $classname = ucfirst($name);
      $idfield = $name."_id";
      $this->$name = new $classname($this->$idfield);
      
      if($this->$name->id) {
        return $this->$name;
      } else {
        return null;
      }
    }
    
    return $this->$name;
  }
}