class-table-mapper设计php和ZF

时间:2009-12-11 20:02:33

标签: php oop zend-framework models mappers

是否有更好的方法可以使用ZF使用映射器,现实生活对象和table_objects。

这就是我使用Zend Framework的方法:

class User_DbTable extends Zend_DB_Table_Abstract{
      protected $_name = "user"; // name of the table
}

用户类 - >用户对象:

class User{
  protected $_id;
  protected $_name;
  protected $_addresses; //list of OBJs

  public function set_name($_name){
    $this->_name = $_name;
  }
  public function get_name(){
    return $this->_name;
  }
  public function set_adresses($_addresses){
    $this->_addresses = $_addresses;
  }
// and so on....
}

映射器:

class UserMapper{
   protected $userTBL;

   public function __construct(){
     $this->userTBL = new User_DbTable();
   }
   public function __fatchAll(){
     $select = $this->userTBL->select();
     foreach($this->userTBL->fetchAll($select) as $row){
       $user = new User(); // model
       $user->set_name($row->name);
       // gat all the addreses of this user with eg. AddressMapper()
       $user->set_addresses($addresses); // array of object of address just like User
       $users[] = $user;
     }
     return $users;
   }
}

控制器中的用法: 列表动作:

$userMP = new UserMapper();
$this->view->users = $userMP->__fatchAll();

或添加/保存操作:

$newUser = new User();
$newUser->set_name('somename');
$userMP = new UserMapper();
$userMP->save($newUser);

1 个答案:

答案 0 :(得分:2)

ZF允许您扩展Zend_Db_Table_Row类,并告诉Zend_Db_Table类始终使用它。这样,您就可以访问所有Zend_Db_Table_Row功能,同时在顶部添加您自己的逻辑。

你可以这样做

class User_DbTable extends Zend_DB_Table_Abstract{
      protected $_name = "user"; // name of the table
      protected $_rowClass = "User"; // The name of your Zend_Db_Table_Row class
}

class User extends Zend_Db_Table_Row {

  public function set_name($_name){
    $this->name = $_name;
  }
  public function get_name(){
    return $this->name;
  }
  public function set_adresses($_addresses){
    $this->addresses = $_addresses;
  }
// and so on....
}

您可以在Zend_Db_Table_Row here

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