呈现表单中经过过滤的复选框集合 [英] Render a filtered checkbox collection in a form
问题描述
我想将过滤后的集合呈现为复选框列表. 但是我很难得到显示的收藏.我收到可捕获的致命错误:无法将Doctrine \ ORM \ PersistentCollection类的对象转换为字符串".
I want to render a filtered collection as a checkbox list. But i have trouble to get the collection shown. i get "Catchable Fatal Error: Object of class Doctrine\ORM\PersistentCollection could not be converted to string".
以下是我的表单类型:
class PropertyfilterType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('view', EntityType::class, [
'class' => Propsearch::class,
'choice_label' => 'propsearchviews',
'expanded' => true,
'multiple' => true
]);
}
这是我的多对多实体
<?php
namespace App\Entity;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Symfony\Component\Validator\Constraints as Assert;
use Doctrine\ORM\Mapping as ORM;
/**
*/
class Propsearch
{
/**
* @ORM\Id()
* @ORM\GeneratedValue()
* @ORM\Column(type="integer")
*/
private $id;
/**
* @var Propsearchview[]|ArrayCollection
*
* @ORM\ManyToMany(targetEntity="App\Entity\Propview", cascade={"persist"})
* @ORM\JoinTable(name="propsearch_propview")
* @ORM\OrderBy({"title": "ASC"})
* @Assert\Count(max="4", maxMessage="Can only select 4 views")
*/
private $propsearchviews;
/**
* @var Propsearchfacility[]|ArrayCollection
*
* @ORM\ManyToMany(targetEntity="App\Entity\Propfacility", cascade={"persist"})
* @ORM\JoinTable(name="propsearch_propfacility")
* @ORM\OrderBy({"title": "ASC"})
* @Assert\Count(max="4", maxMessage="Can only select 4 facilities")
*/
private $propsearchfacilities;
public function getId(): ?int
{
return $this->id;
}
public function __construct()
{
$this->propsearchviews = new ArrayCollection();
$this->propsearchfacilities = new ArrayCollection();
}
/**
* @return Collection|Propsearchview[]
*/
public function getPropsearchviews(): Collection
{
return $this->propsearchviews;
}
public function addPropsearchview(Propsearchview $propsearchview): self
{
if (!$this->propsearchviews->contains($propsearchview)) {
$this->propsearchviews[] = $propsearchview;
}
return $this;
}
public function removePropsearchview(Propsearchview $propsearchview): self
{
if ($this->propsearchviews->contains($propsearchview)) {
$this->propsearchviews->removeElement($propsearchview);
}
return $this;
}
/**
* @return Collection|Propsearchfacility[]
*/
public function getPropsearchfacilities(): Collection
{
return $this->propsearchfacilities;
}
public function addPropsearchfacility(Propsearchfacility $propsearchfacility): self
{
if (!$this->propsearchfacilities->contains($propsearchfacility)) {
$this->propsearchfacilities[] = $propsearchacility;
}
return $this;
}
public function removePropsearchfacility(Propsearchfacility $propsearchfacility): self
{
if ($this->propsearchfacilities->contains($propsearchfacility)) {
$this->propsearchfacilities->removeElement($propsearchfacility);
}
return $this;
}
}
这是我的原始视图实体.
This is my original view entity.
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Entity()
* @ORM\Table(name="propview")
*
* Defines the properties of the Tag entity to represent the post tags.
*
* See https://symfony.com/doc/current/book/doctrine.html#creating-an-entity-class
*
* @author Yonel Ceruto <yonelceruto@gmail.com>
*/
class Propview
{
/**
* @var int
*
* @ORM\Id
* @ORM\GeneratedValue
* @ORM\Column(type="integer")
*/
private $id;
/**
* @var string
*
* @ORM\Column(type="string", length=191)
*/
private $title;
public function getId(): ?int
{
return $this->id;
}
public function getTitle(): ?string
{
return $this->title;
}
public function setTitle(string $title): self
{
$this->title = $title;
return $this;
}
public function __toString(): string
{
return $this->title;
}
}
所以我想将视图的集合显示为复选框列表，该列表已添加到表单的propsearch表中. 预先感谢！
So i want to show the collection of views as a checkbox list that has been added to the propsearch table in the form. Thanks in advance!
编辑2 好吧，我有proppropviewviews，它具有propviewtype的colleciton.包括propsearch的数据类.
Edit 2 Okay so i have the propsearchviews which has an colleciton from propviewtype. including the dataclass from propsearch.
<?php
namespace App\Form;
use App\Entity\Propsearch;
class PropertyfilterType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('propsearchviews', CollectionType::class, [
'entry_type' => PropviewType::class,
'by_reference' => false,
]);
}
propviewtype本身
the propviewtype itself
namespace App\Form\Type;
use App\Entity\Propview;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
class PropviewType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('propview', EntityType::class, [
'class' => Propview::class,
'choice_label' => 'title',
]);
/**
* @param OptionsResolver $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => Propview::class,
));
}
}
和我的html.twig文件
and my html.twig file
<div class="col-12 col-md-4 mb-2">
{% for field in propertybuyform.propsearchviews %}
<div class="col-xs-4">
{{ form_widget(field) }}
{{ form_label(field) }}
</div>
{% endfor %}
</div>
推荐答案
您应使用嵌入式表单功能来实现此目的.请参考 https://symfony.com/doc/current/form/form_collections.html 了解如何实现. 简要描述您的情况-您应创建PropsearchType，它将propsearchviews属性呈现为CollectionType，其中"entry_type"是您应创建的另一种自定义表单类型-PropviewType，应将您的Propviews呈现为checboxes.
You should use embedded form functionality to achieve this. Please refer to https://symfony.com/doc/current/form/form_collections.html to get idea of how it could be implemented. Briefly describing your case - you should create PropsearchType which would render propsearchviews property as CollectionType, where 'entry_type' would be another custom form type that you should create - PropviewType, that should render your Propviews as checboxes.
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