使用列聚合扩展模型

技术:ORM,条令1.1.6,KohanaPHP

第1.1.6条。如何在不同的桌子上分布模型?

具体情况:

我有一个包含ID、登录名和密码的类实体,它有一个emailaddress、多个地址和一些其他关系。我还有另外两个类,Company和Person,它们扩展了实体。我想用 Column aggregation 所以所有的登录和密码信息都保存在一个地方。现在我想给我的Person类添加特定的列(firstname、lastname等),但是我找不到如何做到这一点。文档给出的唯一示例是没有额外列的示例。

当前类别

实体类:

class Entity extends Doctrine_Record
{
    public function setTableDefinition() {
        $this->setTableName('entity');
        $this->hasColumn('id', 'integer', 4, array(
             'type' => 'integer',
             'length' => 4,
             'unsigned' => 0,
             'primary' => true,
             'autoincrement' => true,
             ));
        $this->hasColumn('login', 'string', 64, array(
             'type' => 'string',
             'length' => 64,
             'fixed' => false,
             'primary' => false,
             'notnull' => true,
             'autoincrement' => false,
             ));
        $this->hasColumn('password', 'string', 64, array(
             'type' => 'string',
             'length' => 64,
             'fixed' => false,
             'primary' => false,
             'notnull' => true,
             'autoincrement' => false,
             ));
        $this->hasColumn('created', 'date', null, array(
             'type' => 'date',
             'primary' => false,
             'notnull' => false,
             'autoincrement' => false,
             ));
        $this->hasColumn('modified', 'date', null, array(
             'type' => 'date',
             'primary' => false,
             'notnull' => false,
             'autoincrement' => false,
             ));

        $this->setSubclasses(array(
                'Person' => array("type" => 1)
            ));
    }
}

人员类别:

class Person extends Entity
{
    public function setTableDefinition() {
        $this->setTableName('person');
        $this->hasColumn('id', 'integer', 4, array(
             'type' => 'integer',
             'length' => 4,
             'unsigned' => 0,
             'primary' => true,
             'autoincrement' => true,
             ));
        $this->hasColumn('firstname', 'string', 255, array(
             'type' => 'string',
             'length' => 255,
             'fixed' => false,
             'primary' => false,
             'notnull' => true,
             'autoincrement' => false,
             ));
        $this->hasColumn('insertion', 'string', 64, array(
             'type' => 'string',
             'length' => 64,
             'fixed' => false,
             'primary' => false,
             'notnull' => false,
             'autoincrement' => false,
             ));
        $this->hasColumn('lastname', 'string', 255, array(
             'type' => 'string',
             'length' => 255,
             'fixed' => false,
             'primary' => false,
             'notnull' => true,
             'autoincrement' => false,
             ));
    }
}

CREATE TABLE `person` (
    `id` INT AUTO_INCREMENT, 
    `firstname` VARCHAR(255) NOT NULL, 
    `insertion` VARCHAR(64), 
    `lastname` VARCHAR(255) NOT NULL, 
    PRIMARY KEY(`id`)
) ENGINE = INNODB

CREATE TABLE `entity` (`
    id` INT AUTO_INCREMENT, 
    `login` VARCHAR(64) NOT NULL, 
    `password` VARCHAR(64) NOT NULL, 
    `created` DATE, 
    `modified` DATE, 
    PRIMARY KEY(`id`)
) ENGINE = INNODB

有人能告诉我怎么做吗?