问题描述
我正在使用 Doctrine ORM。
尝试从数据库获取数据时出现此错误:Fatal error: Uncaught PDOException: sqlSTATE[42S02]: Base table or view not found: 1146 Table 'db.Genericmeasurements' doesn't exist
产生错误的代码:
$sensor = $entityManager->getRepository('EspRemoteServer\Entity\GenericSensor')->getSensor(1);
foreach ($sensor as $s)
{
$measurement = $s->getMeasurements();
$values = $measurement->getValues();
}
它进入 getValues() 并在尝试执行 sql 时产生错误。
我试图用 AssociationOverride 做一些事情,但似乎我无法覆盖表名。
Genericmeasurements.PHP
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\MappedSuperclass
*/
abstract class Genericmeasurements
{
/**
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
* @ORM\Column(name="id",type="integer")
*/
private $id;
/**
* @ORM\Column(name="time",type="datetime",nullable=false)
*/
private $time;
/**
* @ORM\ManyToOne(targetEntity="GenericSensor",inversedBy="measurements")
* @ORM\JoinColumn(name="sensor_id",referencedColumnName="id")
*/
private $sensor;
function __construct()
{
}
//getters and setters
}
DS18B20Measurements.PHP
/**
* @ORM\Entity
* @ORM\Table(name="ds18b20_sensor")
*/
class DS18B20Measurements extends Genericmeasurements
{
use TemperatureTrait;
function __construct()
{
}
}
GenericSensor.PHP
/**
* @ORM\Entity(repositoryClass="EspRemoteServer\Entity\Repository\GenericSensorRepository")
* @ORM\Table(name="sensors")
*/
class GenericSensor
{
/**
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
* @ORM\Column(name="id",type="integer")
*/
private $id;
/**
* @ORM\Column(name="name",type="string",nullable=false)
*/
private $name;
/**
* @ORM\Column(name="token",nullable=false)
*/
private $token;
/**
* @ORM\Column(name="description",type="text")
*/
private $description;
/**
* @ORM\Column(name="location",nullable=false)
*/
private $location;
/**
* @ORM\OnetoMany(targetEntity="Genericmeasurements",mappedBy="sensor")
**/
private $measurements;
function __construct($name = '',$token = '',$description = '',$location = '')
{
$this->name = $name;
$this->token = $token;
$this->description = $description;
$this->location = $location;
$this->measurements = new ArrayCollection();
}
//getters and setters
}
解决方法
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