<?php 
public function getPostData()
    {
        $ini = AdiantiApplicationConfig::get();
        
        if (isset($_POST[$this->name]))
        {
            $values = $_POST[$this->name];
            
            if (isset($ini['general']['compat']) AND $ini['general']['compat'] ==  '4')
            {
                $return = [];
                if (is_array($values))
                {
                    TTransaction::open($this->database);
                    foreach ($values as $value)
                    {
                        if ($value)
                        {
                            $model = $this->model;
                            $pk = constant("{$model}::PRIMARYKEY");
                            
                            if ($pk === $this->key) // key is the primary key (default)
                            {
                                // use find because it uses cache
                                $object = $model::find( $value );
                            }
                            else // key is an alternative key (uses where->first)
                            {
                                $object = $model::where( $this->key, '=', $value )->first();
                            }
                            
                            if ($object)
                            {
                                $description = $object->render($this->mask);
                                $return[$value] = $description;
                            }
                        }
                    }
                }
                return $return;
            }
            else
            {
                if (empty($this->separator))
                {
                    return $values;
                }
                else
                {
                    return implode($this->separator, $values);
                }
            }
        }
        else
        {
            return '';
        }
    }
?>