doctrine2/models/gnatUser.php

<?php

class gnatUserTable { }

class gnatUser extends Doctrine_Record 
{
    public function setTableDefinition() 
    {
        $this->hasColumn('name', 'string', 150);
        $this->hasColumn('foreign_id', 'integer', 10, array (  'unique' => true,));
    }
    
    public function setUp()
    {
        parent::setUp();
        $this->ownsOne('gnatEmail as Email', array('local'=>'foreign_id','foreign'=>'id','onDelete'=>'CASCADE'));        
    }
    
}