Ivo*_*eek 18 php symfony-forms symfony doctrine-orm
我的问题的简短版本:
如何在Symfony2中编辑子表单的实体？
= - = - = - = - = - = - =长而详细的版本= - = - = - = - = - = - = - =
我有一个实体订单
<?php
class Order
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @ORM\ManyToOne(targetEntity="Customer")
* @ORM\JoinColumn(name="customer_id", referencedColumnName="id", nullable=false)
**/
private $customer;
/**
* @var \DateTime
*
* @ORM\Column(name="date", type="date")
*/
private $date;
/**
* @ORM\ManyToOne(targetEntity="\AppBundle\Entity\OrderStatus")
* @ORM\JoinColumn(name="order_status_id", referencedColumnName="id", nullable=false)
**/
private $orderStatus;
/**
* @var string
*
* @ORM\Column(name="reference", type="string", length=64)
*/
private $reference;
/**
* @var string
*
* @ORM\Column(name="comments", type="text")
*/
private $comments;
/**
* @var array
*
* @ORM\OneToMany(targetEntity="OrderRow", mappedBy="Order", cascade={"persist"})
*/
private $orderRows;
...
}
MySQL的
_____________________________________________________________ |id | order id | |customer_id | fk customer.id NOT NULL | |date | order date | |order_status_id | fk order_status.id NOT NULL | |reference | varchar order reference | |comments | text comments | |___________________________________________________________|
和实体OrderRow(订单可以有一行或多行)
<?php
class OrderRow
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @ORM\ManyToOne(targetEntity="Order", inversedBy="orderRows", cascade={"persist"})
* @ORM\JoinColumn(name="order_id, referencedColumnName="id", nullable=false)
**/
private $order;
/**
* @ORM\ManyToOne(targetEntity="[MyShop\Bundle\ProductBundle\Entity\Product")
* @ORM\JoinColumn(name="product_id", referencedColumnName="id", nullable=true)
**/
private $product;
/**
* @var string
*
* @ORM\Column(name="description", type="string", length=255)
*/
private $description;
/**
* @var integer
*
* @ORM\Column(name="count", type="integer")
*/
private $count = 1;
/**
* @var \DateTime
*
* @ORM\Column(name="date", type="date")
*/
private $date;
/**
* @var decimal
*
* @ORM\Column(name="amount", type="decimal", precision=5, scale=2)
*/
private $amount;
/**
* @var string
*
* @ORM\Column(name="tax_amount", type="decimal", precision=5, scale=2)
*/
private $taxAmount;
/**
* @var string
*
* @ORM\Column(name="discount_amount", type="decimal", precision=5, scale=2)
*/
private $discountAmount;
...
}
MySQL的
_____________________________________________________________ |id | order id | |order_id | fk order.id NOT NULL | |product_id | fk product.id | |description | varchar product description | |count | int count | |date | date | |amount | amount | |taxAmount | tax amount | |discountAmount | discount amount | |___________________________________________________________|
我想创建一个允许编辑一个订单及其行的表单.
OrderType.php
class OrderType extends AbstractType
{
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('customer', 'entity', array(
'class' => 'Customer',
'multiple' => false
))
->add('orderStatus', 'entity', array(
'class' => 'AppBundle\Entity\OrderStatus',
'multiple' => false
))
->add('date')
->add('reference')
->add('comments')
->add('orderRows', 'collection', [
'type' => new OrderRowType(),
'allow_add' => true,
'by_reference' => false,
])
;
}
...
}
OrderRowType.php
class OrderRowType extends AbstractType
{
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('order', 'entity', array(
'class' => 'MyShop\Bundle\OrderBundle\Entity\Order',
'multiple' => false
))
->add('product', 'product_selector') // service
->add('orderRowStatus', 'entity', array(
'class' => 'AppBundle\Entity\OrderRowStatus',
'multiple' => false
))
->add('description')
->add('count')
->add('startDate')
->add('endDate')
->add('amount')
->add('taxAmount')
->add('discountAmount')
;
}
...
}
通过向我的API发送请求来更新订单:
状态代码:200
Params: {
"order[customer]": "3",
"order[orderStatus]": "1",
"order[date][month]:": "5",
"order[date][day]": "18",
"order[date][year]": "2015",
"order[reference]": "Testing",
"order[comments]": "I have nothing to say!",
"order[orderRows][0][order]": "32",
"order[orderRows][0][product]": "16721",
"order[orderRows][0][orderRowStatus]:1": "1",
"order[orderRows][0][description]": "8 GB memory",
"order[orderRows][0][count]": "12",
"order[orderRows][0][startDate][month]": "5",
"order[orderRows][0][startDate][day]": "18",
"order[orderRows][0][startDate][year]": "2015",
"order[orderRows][0][endDate][month]": "5",
"order[orderRows][0][endDate][day]": "18",
"order[orderRows][0][endDate][year]": "2015",
"order[orderRows][0][amount]": "122.03",
"order[orderRows][0][taxAmount]": "25.63",
"order[orderRows][0][discountAmount]": "0",
"order[orderRows][1][order]": "32",
"order[orderRows][1][product]": "10352",
"order[orderRows][1][orderRowStatus]": "2",
"order[orderRows][1][description]": "12 GB MEMORY",
"order[orderRows][1][count]": "1",
"order[orderRows][1][startDate][month]": "5",
"order[orderRows][1][startDate][day]": "18",
"order[orderRows][1][startDate][year]": "2015",
"order[orderRows][1][endDate][month]": "5",
"order[orderRows][1][endDate][day]": "18",
"order[orderRows][1][endDate][year]": "2015",
"order[orderRows][1][amount]": "30.8",
"order[orderRows][1][taxAmount]": "6.47",
"order[orderRows][1][discountAmount]": "0",
"order[orderRows][2][order]": "32",
"order[orderRows][2][product]": "2128",
"order[orderRows][2][orderRowStatus]": "3",
"order[orderRows][2][description]": "4GB MEMORY",
"order[orderRows][2][count]": "5",
"order[orderRows][2][startDate][month]": "5",
"order[orderRows][2][startDate][day]": "18",
"order[orderRows][2][startDate][year]": "2015",
"order[orderRows][2][endDate][month]": "5",
"order[orderRows][2][endDate][day]": "18",
"order[orderRows][2][endDate][year]": "2015",
"order[orderRows][2][amount]": "35.5",
"order[orderRows][2][taxAmount]": "7.46",
"order[orderRows][2][discountAmount]": "0"
}
上面的请求编辑订单详细信息并创建新的order_rows,因为没有提供order_row_id.现在在Symfony2中,我发现我应该只将$ builder-> add('id')添加到我的OrderRowType中,我的实体也没有为列ID设置setter.
经过大量的信息,我有一个很短的问题.我该如何更新此表单中的order_rows记录？
如果您不了解内部,处理收集和Doctrine有时会很复杂.我将首先向您提供有关内部结构的一些信息,以便您更清楚地了解引擎盖下的内容.
从您提供的详细信息中很难估计实际问题,但我会给您一些建议,可以帮助您调试问题.我给出了一个广泛的答案,所以它可能会帮助别人.
以下是我的猜测:您正在通过引用修改实体,即使您设置by_reference为false也是如此.这可能是因为您没有定义addOrderRow和removeOrderRow方法(两者都有)或者因为您没有使用doctrine集合对象
在控制器中创建Form对象时,将它与从数据库中检索的实体(即带有ID)或刚刚创建的实体绑定:这意味着表单DO不需要主实体的id,它也不需要集合对象的id.为方便起见,您可以将其添加到表单中,但如果确实它们是不可变的(例如,hidden键入disabled => true选项).
创建Collection表单时,Symfony会自动为实体集合中已存在的每个实体创建一个子表单; 这就是为什么在一个entity/<id>/edit动作中你应该总是看到已经存在的集合元素的可编辑形式.
的allow_add和allow_delete选项,控制是否将所生成的子窗体可以动态改变大小,通过去除收集的某些元件,或者通过添加新的元素(参见ResizeFormListener类).请注意,当您使用prototypewith javascript时,__prototype__必须小心使用占位符:这是key用于重新映射对象服务器端的实际值,因此如果您更改它,则Form将在集合中创建一个新元素.
在Doctrine中,你需要好好照顾owning side和inverse side映射.该owning侧是将持续存在关联到数据库的实体,和逆侧是其它实体.当持久化时,owning侧面是唯一触发关系被保存的.在对象修改期间保持两个关系同步是一种模型责任.
当一个一对多的关系处理中,owning一边是many(例如,OrderRow你的情况S),以及one是inverse侧.
最后,应用程序需要明确标记要保留的实体.可以将关系的两侧标记为persist cascading,以便通过关系的所有可到达实体也被持久化.在此过程中,所有新实体都会自动保留,并且(在标准配置中)所有"脏"实体都会更新.
脏实体的概念在官方文档中得到了很好的解释.默认情况下,Doctrine会通过将每个属性与原始状态进行比较来自动检测更新的实体,并UPDATE在刷新期间生成语句.如果明确表示性能改进(即@ChangeTrackingPolicy("DEFERRED_EXPLICIT")),则必须手动保留所有实体,即使关系标记为级联.
另请注意,当从DB重新加载实体时,Doctrine使用PersistenCollection实例来处理集合,因此您需要使用doctrine集合接口来处理实体集合.
总而言之,这里有一个(希望是完整的)列表,用于检查正确的集合更新.
Doctrine\Common\Collection,而不是一个简单的数组;在你的情况下:
<?php
class Order
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var \Doctrine\Common\Collections\Collection
* @ORM\OneToMany(targetEntity="OrderRow", mappedBy="Order", cascade={"persist"})
*/
private $orderRows;
public function __construct()
{
// this is required, as Doctrine will replace it by a PersistenCollection on load
$this->orderRows = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Add order row
*
* @param OrderRow $row
*/
public function addOrderRow(OrderRow $row)
{
if (! $this->orderRows->contains($row))
$this->orderRows[] = $row;
$row->setOrder($this);
}
/**
* Remove order row
*
* @param OrderRow $row
*/
public function removeOrderRow(OrderRow $row)
{
$removed = $this->orderRows->removeElement($row);
/*
// you may decide to allow your domain to have spare rows, with order set to null
if ($removed)
$row->setOrder(null);
*/
return $removed;
}
/**
* Get order rows
* @return OrderRow[]
*/
public function getOrders()
{
// toArray prevent edit by reference, which breaks encapsulation
return $this->orderRows->toArray();
}
}
class OrderRows
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var Order
* @ORM\ManyToOne(targetEntity="Order", inversedBy="orderRows", cascade={"persist"})
* @ORM\JoinColumn(name="order_id, referencedColumnName="id", nullable=false)
*/
private $order;
/**
* Set order
*
* @param Order $order
*/
public function setOrder(Order $order)
{
// avoid infinite loops addOrderRow -> setOrder -> addOrderRow
if ($this->order === $order) {
return;
}
if (null !== $this->order) {
// see the comment above about spare order rows
$this->order->removeOrderRow($this);
}
$this->order = $order;
}
/**
* Get order
*
* @return Order
*/
public function getOrder()
{
return $this->order;
}
}
id表单不公开订单(但在模板中包含GET路由器操作的正确参数)order不存在,因为它将由模型类自动更新by_reference设置为falseaddOrderRow和removeOrderRow中定义Order的类Order::getOrderRows不要直接返回集合这里的片段:
class OrderType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('orderRows', 'collection', [
'type' => new OrderRowType(),
'allow_add' => true, // without, new elements are ignored
'allow_delete' => true, // without, deleted elements are not updated
'by_reference' => false, // hint Symfony to use addOrderRow and removeOrderRow
// NOTE: both method MUST exist, or Symfony will ignore the option
])
;
}
}
class OrderRowType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
// ->add('order') NOT required, the model will handle the setting
->add('product', 'product_selector') // service
;
}
}
Form::handleRequest确保HTTP方法与Form方法属性匹配在你的情况下,你应该有这样的行动:
public function updateAction(Request $request, $id)
{
$em = $this->getDoctrine()->getManager();
$order = $em->getRepository('YourBundle:Order')->find($id);
if (! $order) {
throw $this->createNotFoundException('Unable to find Order entity.');
}
$previousRows = $order->getOrderRows();
// is a PUT request, so make sure that <input type="hidden" name="_method" value="PUT" /> is present in the template
$editForm = $this->createForm(new OrderType(), $order, array(
'method' => 'PUT',
'action' => $this->generateUrl('order_update', array('id' => $id))
));
$editForm->handleRequest($request);
if ($editForm->isValid()) {
// removed rows = previous rows - current rows
$rowsRemoved = array_udiff($previousRows, $order->getOrderRows(), function ($a, $b) { return $a === $b ? 0 : -1; });
// removed rows must be deleted manually
foreach ($rowsRemoved as $row) {
$em->remove($row);
}
// if not cascading, all rows must be persisted as well
$em->flush();
}
return $this->render('YourBundle:Order:edit.html.twig', array(
'entity' => $order,
'edit_form' => $editForm->createView(),
));
}
希望这可以帮助!
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