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當我嘗試delete or clear速遞公司時，它會拋出以下錯誤。我認爲我沒有很好的調試技巧。任何人都可以幫助我，這背後的原因是什麼？這裏是控制器，視圖和模態。實體必須被管理或計劃在Symfony/twig中進行單個計算
Entity has to be managed or scheduled for removal for single computation Sokosimu\PostalDeliveryBundle\Entity\[email protected]
控制器
public function clearRatesAction(DeliveryCompany $deliveryCompany){
$em = $this->get('doctrine')->getManager();
$postalcharge = new PostalCharge();
$em->getConnection()->beginTransaction();
try {
$rate = $postalcharge ->setDeliveryCompany($deliveryCompany);
$em->persist($rate);
$em->remove($rate);
$em->flush($rate);
$em->getConnection()->commit();
} catch(Exception $e){
$em->getConnection()->rollback();
throw $e;
}
return $this->redirect($this->generateUrl('sokosimu_postal_delivery_list_company'));
}
}
嫩枝（查看）
<tbody>
{% for deliveryCompany in deliveryCompanyList %}
<tr>
<td><a href="{{ path('sokosimu_postal_delivery_company_detail',{'deliveryCompany':deliveryCompany.getid()}) }}">{{ deliveryCompany.getName() }}</td>
<td>{{ deliveryCompany.getAddress() }}</td>
<td><a href="{{ path('sokosimu_postal_delivery_company_edit',{'deliveryCompany':deliveryCompany.getId()}) }}">Edit</a>
<a href="{{ path('sokosimu_postal_delivery_clear_rates',{'deliveryCompany':deliveryCompany.getId()}) }}">ClearRates</a>
</td>
</tr>
{% endfor %}
</tbody>
郵政電荷實體
<?php
// src/Sokosimu/PostalDeliveryBundle/Entity/PostalCharge.php
namespace Sokosimu\PostalDeliveryBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/** * @ORM\Entity(repositoryClass="Sokosimu\PostalDeliveryBundle\Entity\Repository\PostalChargeRepository")
* @ORM\Table(name="postal_charge")
* @ORM\HasLifecycleCallbacks()
*/
class PostalCharge
{
/**
* @ORM\Id
* @ORM\Column(name="id",type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\Column(name="record_type",type="string", length=225)
*/
protected $recordType;
/**
* @ORM\Column(name="active_from",type="datetime", nullable=True)
*/
protected $activeFrom;
/**
* @ORM\Column(name="active_to",type="datetime", nullable=True)
*/
protected $activeTo;
/**
* @ORM\Column(name="active_record",type="string", length=225, nullable=True)
*/
protected $activeRecord;
/**
* @ORM\Column(name="origin_country",type="string", length=225, nullable=True)
*/
protected $originCountry;
/**
* @ORM\Column(name="weight_from",type="integer")
*/
protected $weightFrom;
/**
* @ORM\Column(name="weight_to",type="integer")
*/
protected $weightTo;
/**
* @ORM\Column(name="from_region",type="string", length=225, nullable=True)
*/
protected $fromRegion;
/**
* @ORM\Column(name="to_region",type="string", length=225, nullable=True)
*/
protected $toRegion;
/**
* @ORM\Column(name="priority",type="string", length=225, nullable=True)
*/
protected $priority;
/**
* @ORM\Column(name="economy",type="string", length=225, nullable=True)
*/
protected $economy;
/**
* @ORM\Column(name="increment_price",type="string", length=225, nullable=True)
*/
protected $incrementPrice;
/**
* @ORM\Column(name="tax",type="string", length=225, nullable=True)
*/
protected $tax;
/**
* @ORM\Column(name="insurance",type="string", length=225, nullable=True)
*/
protected $insurance;
/**
* @ORM\Column(name="increment_unit",type="string", length=225, nullable=True)
*/
protected $incrementUnit;
/**
* @ORM\Column(name="currency_code",type="string", length=225, nullable=True)
*/
protected $currencyCode;
/**
* @ORM\Column(name="country_code",type="string", length=225, nullable=True)
*/
protected $countryCode;
/**
* @ORM\ManyToOne(targetEntity="DeliveryCompany")
* @ORM\JoinColumn(name="delivery_company_id",referencedColumnName="id",nullable=True)
*/
protected $deliveryCompany;
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set recordType
*
* @param string $recordType
* @return PostalCharge
*/
public function setRecordType($recordType)
{
$this->recordType = $recordType;
return $this;
}
/**
* Get recordType
*
* @return string
*/
public function getRecordType()
{
return $this->recordType;
}
/**
* Set activeFrom
*
* @param \DateTime $activeFrom
* @return PostalCharge
*/
public function setActiveFrom($activeFrom)
{
$this->activeFrom = $activeFrom;
return $this;
}
/**
* Get activeFrom
*
* @return \DateTime
*/
public function getActiveFrom()
{
return $this->activeFrom;
}
/**
* Set activeTo
*
* @param \DateTime $activeTo
* @return PostalCharge
*/
public function setActiveTo($activeTo)
{
$this->activeTo = $activeTo;
return $this;
}
/**
* Get activeTo
*
* @return \DateTime
*/
public function getActiveTo()
{
return $this->activeTo;
}
/**
* Set activeRecord
*
* @param string $activeRecord
* @return PostalCharge
*/
public function setActiveRecord($activeRecord)
{
$this->activeRecord = $activeRecord;
return $this;
}
/**
* Get activeRecord
*
* @return string
*/
public function getActiveRecord()
{
return $this->activeRecord;
}
/**
* Set originCountry
*
* @param string $originCountry
* @return PostalCharge
*/
public function setOriginCountry($originCountry)
{
$this->originCountry = $originCountry;
return $this;
}
/**
* Get originCountry
*
* @return string
*/
public function getOriginCountry()
{
return $this->originCountry;
}
/**
* Set weightFrom
*
* @param integer $weightFrom
* @return PostalCharge
*/
public function setWeightFrom($weightFrom)
{
$this->weightFrom = $weightFrom;
return $this;
}
/**
* Get weightFrom
*
* @return integer
*/
public function getWeightFrom()
{
return $this->weightFrom;
}
/**
* Set weightTo
*
* @param integer $weightTo
* @return PostalCharge
*/
public function setWeightTo($weightTo)
{
$this->weightTo = $weightTo;
return $this;
}
/**
* Get weightTo
*
* @return integer
*/
public function getWeightTo()
{
return $this->weightTo;
}
/**
* Set fromRegion
*
* @param string $fromRegion
* @return PostalCharge
*/
public function setFromRegion($fromRegion)
{
$this->fromRegion = $fromRegion;
return $this;
}
/**
* Get fromRegion
*
* @return string
*/
public function getFromRegion()
{
return $this->fromRegion;
}
/**
* Set toRegion
*
* @param string $toRegion
* @return PostalCharge
*/
public function setToRegion($toRegion)
{
$this->toRegion = $toRegion;
return $this;
}
/**
* Get toRegion
*
* @return string
*/
public function getToRegion()
{
return $this->toRegion;
}
/**
* Set priority
*
* @param string $priority
* @return PostalCharge
*/
public function setPriority($priority)
{
$this->priority = $priority;
return $this;
}
/**
* Get priority
*
* @return string
*/
public function getPriority()
{
return $this->priority;
}
/**
* Set economy
*
* @param string $economy
* @return PostalCharge
*/
public function setEconomy($economy)
{
$this->economy = $economy;
return $this;
}
/**
* Get economy
*
* @return string
*/
public function getEconomy()
{
return $this->economy;
}
/**
* Set incrementPrice
*
* @param string $incrementPrice
* @return PostalCharge
*/
public function setIncrementPrice($incrementPrice)
{
$this->incrementPrice = $incrementPrice;
return $this;
}
/**
* Get incrementPrice
*
* @return string
*/
public function getIncrementPrice()
{
return $this->incrementPrice;
}
/**
* Set tax
*
* @param string $tax
* @return PostalCharge
*/
public function setTax($tax)
{
$this->tax = $tax;
return $this;
}
/**
* Get tax
*
* @return string
*/
public function getTax()
{
return $this->tax;
}
/**
* Set insurance
*
* @param string $insurance
* @return PostalCharge
*/
public function setInsurance($insurance)
{
$this->insurance = $insurance;
return $this;
}
/**
* Get insurance
*
* @return string
*/
public function getInsurance()
{
return $this->insurance;
}
/**
* Set incrementUnit
*
* @param string $incrementUnit
* @return PostalCharge
*/
public function setIncrementUnit($incrementUnit)
{
$this->incrementUnit = $incrementUnit;
return $this;
}
/**
* Get incrementUnit
*
* @return string
*/
public function getIncrementUnit()
{
return $this->incrementUnit;
}
/**
* Set currencyCode
*
* @param string $currencyCode
* @return PostalCharge
*/
public function setCurrencyCode($currencyCode)
{
$this->currencyCode = $currencyCode;
return $this;
}
/**
* Get currencyCode
*
* @return string
*/
public function getCurrencyCode()
{
return $this->currencyCode;
}
/**
* Set countryCode
*
* @param string $countryCode
* @return PostalCharge
*/
public function setCountryCode($countryCode)
{
$this->countryCode = $countryCode;
return $this;
}
/**
* Get countryCode
*
* @return string
*/
public function getCountryCode()
{
return $this->countryCode;
}
/**
* Set deliveryCompany
*
* @param \Sokosimu\PostalDeliveryBundle\Entity\DeliveryCompany $deliveryCompany
* @return PostalCharge
*/
public function setDeliveryCompany(\Sokosimu\PostalDeliveryBundle\Entity\DeliveryCompany $deliveryCompany = null)
{
$this->deliveryCompany = $deliveryCompany;
return $this;
}
/**
* Get deliveryCompany
*
* @return \Sokosimu\PostalDeliveryBundle\Entity\DeliveryCompany
*/
public function getDeliveryCompany()
{
return $this->deliveryCompany;
}
}
你能解釋是什麼意思$ em-> persist（$ rate）和$ em-> remove（$ rate）？爲什麼你試圖堅持$ rate（和postalcharge一樣），並立即刪除它？ （你期望什麼行爲？） – Timurib