Doctrine_Entity_One_to_Many.php

<?php
// Eorder.php
use Doctrine\Common\Collections\ArrayCollection;
/**
* @Entity @Table(name="e_orders", options={"collate"="utf8_general_ci"})
*/
class Eorder
{
	/**
	 * @var integer
	 * @Id @GeneratedValue @Column(type="integer", name="order_id")
	*/
	protected $id;

	public function getId() { return $this->id; }

	/**
	 * @var OrderStockBatch[]|ArrayCollection
	 * @OneToMany(targetEntity="Eitem", mappedBy="order")
	 */
	protected $items;

	public function __construct() {
		$this->items = new ArrayCollection();
	}

	public function getItems() { return $this->items; }
	public function setItems($items) { $this->items = $items; return $this; }
	
}

// Eitem.php
/**
* @Entity @Table(name="e_items", options={"collate"="utf8_general_ci"})
*/
class Eitem
{
	/**
	 * @var integer
	 * @Id @GeneratedValue @Column(type="integer", name="item_id")
	*/
	protected $id;

	public function getId() { return $this->id; }	

	public function __construct()
	{

	}

	/**
	 * @var Eorder
	 * @ManyToOne(targetEntity="Eorder", inversedBy="items")
	 * @JoinColumn(name="order_id", referencedColumnName="order_id", onDelete="CASCADE")  // 不用双向无法join column 到 item表
	 */
	protected $order;

	/**
	 * @var integer
	 * @Column(type="integer", name="order_stock_batch_qty")
	 */
	protected $qty;

	public function getQty() { return $this->qty; }
	public function setQty($qty) { $this->qty = $qty; return $this; }
}