Symfony中的嵌套形式 [英] Nested form in Symfony
问题描述
我有一个这样的嵌套实体:
I have a nested entity like this:
<?php
/**
* @ORM\Entity(repositoryClass="App\Repository\BinderRepository")
*/
class Binder
{
/**
* @ORM\Id
* @ORM\GeneratedValue
* @ORM\Column(type="integer")
*
* @Groups({"export"})
*
* @var int
*/
private $id;
/**
* @ORM\Column(type="string", length=125)
*
* @Groups({"export"})
*
* @var string
*/
private $name;
/**
* @ORM\ManyToMany(targetEntity="App\Entity\Binder")
*
* @Groups({"export"})
* @MaxDepth(10)
*
* @var Collection
*/
private $children;
因此,活页夹可以包含一个subBinder,而该subBinder可以包含subsubBinder等.
So, a Binder can contain a subBinder which can contain a subsubBinder etc.
我将这些实体导出为JSON,在前端对其进行修改,然后将其重新发布为JSON.
I export these entities in JSON, modify them in front-end and re-post them in JSON.
我想制作一个能够处理这种提交的表格:
I'd like to make a form which will be able to handle this kind of submission:
[{"name":"Root 1","id":1,"level":0,"is_open":true,"children":[{"name":"Child 1","id":2,"level":1}]}]
所以,我建立了这种形式:
So, I've built this form:
class BinderType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name', TextType::class, ['label' => 'binders.name'])
->add('children', CollectionType::class, array(
'entry_type' => BinderType::class,
'allow_add' => true))
->add('create', SubmitType::class, ['label' => 'binders.create'])
;
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'data_class' => Binder::class,
]);
}
}
但不幸的是,它抛出了Maximum function nesting level of '256' reached, aborting!
But unfortunately, it throws a Maximum function nesting level of '256' reached, aborting!
我知道这是因为我正在创建具有无限子项的表单,但是我只想处理我正在提交的JSON(当前分为2级(根节点和subNode)). 我可以将嵌套限制为10个级别,但是我喜欢我的表单可以工作.
I know it's because I'm creating a form with infinite subchilds, but I just want to handle the JSON I'm submitting which is currently 2 levels (root and subNode). I can limit the nesting to 10 levels but I just like my form to work.
我想念什么?
推荐答案
添加递归限制.无论如何,对于symfony项目,您将需要增加php.ini上的嵌套级别.我发现256对我的许多项目而言,这是一个相当低的级别.
Add a recursion limit. Anyway you will need to increase the nesting level on your php.ini for symfony projects I've found 256 it is a quite low level for many of my projects.
class BinderType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name', TextType::class, ['label' => 'binders.name'])
;
if ($options['recursion']>0) {
$builder
->add('children', CollectionType::class, array(
'entry_type' => BinderType::class,
'allow_add' => true,
'entry_options' => ['recursion'=>$options['recursion']-1]
))
;
}
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'data_class' => Binder::class,
'recursion' => 10
]);
}
}
这篇关于Symfony中的嵌套形式的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!