Question

我有两个实体

员工和FreeDay

一名员工可以有一天或多天的免费日。免费日被定义为星期几，因此星期一=> 1，星期二=＆gt; 2等..

在员工表单视图中，我想将FreeDay实体显示为复选框列表，如下所示：

Days Form View

但我收到了这个错误：

警告：spl_object_hash（）期望参数1为对象，给定整数

我真的很困惑，而且我不知道如何解决这个问题。

实体代码如下：

员工实体：

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Gedmo\Mapping\Annotation as Gedmo;
use Symfony\Component\Validator\Constraints as Assert;


/**
 * Employee
 *
 * @Gedmo\SoftDeleteable(fieldName="deletedAt")
 */
class Employee
{

/**
 * @ORM\OneToMany(targetEntity="FreeDay", mappedBy="employee", cascade={"persist","remove"},orphanRemoval=true)
 */
private $freedays;



/**
 * Constructor
 */
public function __construct()
{
    $this->freedays = new \Doctrine\Common\Collections\ArrayCollection();
}

/**
 * Add freedays
 *
 * @param \AppBundle\Entity\Free $freeday
 *
 * @return Employee
 */
public function addFreeDay(\AppBundle\Entity\FreeDay $freeday)
{
    $this->freedays[] = $freeday;

    return $this;
}

/**
 * Remove freeday
 *
 * @param \AppBundle\Entity\FreeDay $freeday
 */
public function removeFreeDay(\AppBundle\Entity\FreeDay $freeday)
{
    $this->freedays->removeElement($freeday);
}

/**
 * Get freeday
 *
 * @return \Doctrine\Common\Collections\Collection
 */
public function getFreeDays()
{
    return $this->freedays;
}
}

免费日实体：

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Gedmo\Mapping\Annotation as Gedmo;
use Symfony\Component\Validator\Constraints as Assert;

class FreeDay
{
/**
 * @var int
 *
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;

/**
 * @var int
 * @ORM\ManyToOne(targetEntity="Employee", inversedBy="freedays")
 * @ORM\JoinColumn(name="employee_id", referencedColumnName="id", onDelete="CASCADE")
 */
private $employee;

/**
 * @var int
 *
 * @ORM\Column(name="day", type="integer")
 */
private $day;


/**
 * Get id
 *
 * @return int
 */
public function getId()
{
    return $this->id;
}


/**
 * Set day
 *
 * @param integer $day
 *
 * @return FreeDay
 */
public function setDay($day)
{
    $this->day = $day;

    return $this;
}

/**
 * Get day
 *
 * @return int
 */
public function getDay()
{
    return $this->day;
}

/**
 * Set employee
 *
 * @param \AppBundle\Entity\Employee $employee
 *
 * @return FreeDay
 */
public function setEmployee(\AppBundle\Entity\Employee $employee = null)
{
    $this->employee = $employee;

    return $this;
}

/**
 * Get employee
 *
 * @return \AppBundle\Entity\Employee
 */
public function getEmployee()
{
    return $this->employee;
}

EmployeeType.php

class EmployeeType extends AbstractType
{


public function buildForm(FormBuilderInterface $builder, array $options)
{



    $builder

        ->add('freedays', EntityType::class, array(
            'class'=>'AppBundle:FreeDay',
            'choices'=>$this->getDays(),
            'expanded'=>true,
            'multiple'=>true
        ))

        ->add('save', SubmitType::class, array('label' => 'Salva'))
    ;
}


private function getDays() {
    return array(
        'Monday'=>1,
        'Tuesday'=>2,
        'Wednesday'=>3,
        'Thursday'=>4,
        'Friday'=>5,
        'Saturday'=>6,
    );
}
public function configureOptions(OptionsResolver $resolver)
{
    $resolver->setDefaults(array(
        'data_class' => 'AppBundle\Entity\Employee',
    ));
}
}

Answer 1

在表单构建器中使用entity选项需要选项是该实体的对象，请参阅symfony文档：http://symfony.com/doc/current/reference/forms/types/entity.html#using-choices

当你将一个数组传递给它时，你总会遇到这个错误。

要实现您在问题中概述的内容，您需要在数据库中使用相关的ID和名称（如您在getDays函数中列出的名称），因此星期一将在您的数据库中拥有1的id。

如果您只想要所有选项，请参阅文档的此部分：http://symfony.com/doc/current/reference/forms/types/entity.html#basic-usage

但是，如果您想过滤结果，则需要一个查询构建器，如文档中所述：http://symfony.com/doc/current/reference/forms/types/entity.html#using-a-custom-query-for-the-entities

如果这对您不起作用或者我误解了这个问题，请告诉我。

Symfony一对多与表单视图中的复选框列表

1 个答案: