Zend 2 + Doctrine实体请求

我在使用原则时遇到了麻烦。当我尝试获取特定实体时，我无法检索结果。我有论文实体：Zend 2 + Doctrine实体请求

<?php 

namespace TDS\Entity; 

use Doctrine\ORM\Mapping as ORM; 

/** 
* Courses 
* 
* @ORM\Table(name="courses") 
* @ORM\Entity 
*/ 
class Courses 
{ 
    /** 
    * @var integer 
    * 
    * @ORM\Column(name="id", type="integer", nullable=false) 
    * @ORM\Id 
    * @ORM\GeneratedValue(strategy="IDENTITY") 
    */ 
    private $id; 

    /** 
    * @var string 
    * 
    * @ORM\Column(name="name", type="string", length=64, nullable=false) 
    */ 
    private $name; 



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

    /** 
    * Set name 
    * 
    * @param string $name 
    * 
    * @return Courses 
    */ 
    public function setName($name) 
    { 
     $this->name = $name; 

     return $this; 
    } 

    /** 
    * Get name 
    * 
    * @return string 
    */ 
    public function getName() 
    { 
     return $this->name; 
    } 
}

而且

<?php 

namespace TDS\Entity; 

use Doctrine\ORM\Mapping as ORM; 

/** 
* Levels 
* 
* @ORM\Table(name="levels") 
* @ORM\Entity 
*/ 
class Levels 
{ 
    /** 
    * @var integer 
    * 
    * @ORM\Column(name="id", type="integer", nullable=false) 
    * @ORM\Id 
    * @ORM\GeneratedValue(strategy="IDENTITY") 
    */ 
    private $id; 

    /** 
    * @var string 
    * 
    * @ORM\Column(name="name", type="string", length=64, nullable=false) 
    */ 
    private $name; 



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

    /** 
    * Set name 
    * 
    * @param string $name 
    * 
    * @return Levels 
    */ 
    public function setName($name) 
    { 
     $this->name = $name; 

     return $this; 
    } 

    /** 
    * Get name 
    * 
    * @return string 
    */ 
    public function getName() 
    { 
     return $this->name; 
    } 
}

而且

<?php 

namespace TDS\Entity; 

use Doctrine\ORM\Mapping as ORM; 

/** 
* Places 
* 
* @ORM\Table(name="places") 
* @ORM\Entity 
*/ 
class Places 
{ 
    /** 
    * @var integer 
    * 
    * @ORM\Column(name="id", type="integer", nullable=false) 
    * @ORM\Id 
    * @ORM\GeneratedValue(strategy="IDENTITY") 
    */ 
    private $id; 

    /** 
    * @var string 
    * 
    * @ORM\Column(name="name", type="string", length=64, nullable=false) 
    */ 
    private $name; 

    /** 
    * @var string 
    * 
    * @ORM\Column(name="address", type="text", length=65535, nullable=false) 
    */ 
    private $address; 

    /** 
    * @var float 
    * 
    * @ORM\Column(name="latitude", type="float", precision=10, scale=0, nullable=false) 
    */ 
    private $latitude; 

    /** 
    * @var float 
    * 
    * @ORM\Column(name="longitude", type="float", precision=10, scale=0, nullable=false) 
    */ 
    private $longitude; 



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

    /** 
    * Set name 
    * 
    * @param string $name 
    * 
    * @return Places 
    */ 
    public function setName($name) 
    { 
     $this->name = $name; 

     return $this; 
    } 

    /** 
    * Get name 
    * 
    * @return string 
    */ 
    public function getName() 
    { 
     return $this->name; 
    } 

    /** 
    * Set address 
    * 
    * @param string $address 
    * 
    * @return Places 
    */ 
    public function setAddress($address) 
    { 
     $this->address = $address; 

     return $this; 
    } 

    /** 
    * Get address 
    * 
    * @return string 
    */ 
    public function getAddress() 
    { 
     return $this->address; 
    } 

    /** 
    * Set latitude 
    * 
    * @param float $latitude 
    * 
    * @return Places 
    */ 
    public function setLatitude($latitude) 
    { 
     $this->latitude = $latitude; 

     return $this; 
    } 

    /** 
    * Get latitude 
    * 
    * @return float 
    */ 
    public function getLatitude() 
    { 
     return $this->latitude; 
    } 

    /** 
    * Set longitude 
    * 
    * @param float $longitude 
    * 
    * @return Places 
    */ 
    public function setLongitude($longitude) 
    { 
     $this->longitude = $longitude; 

     return $this; 
    } 

    /** 
    * Get longitude 
    * 
    * @return float 
    */ 
    public function getLongitude() 
    { 
     return $this->longitude; 
    } 
}

而且

<?php 

namespace TDS\Entity; 

use Doctrine\ORM\Mapping as ORM; 

/** 
* TimeSlot 
* 
* @ORM\Table(name="time_slot") 
* @ORM\Entity 
*/ 
class TimeSlot 
{ 
    /** 
    * @var integer 
    * 
    * @ORM\Column(name="id", type="integer", nullable=false) 
    * @ORM\Id 
    * @ORM\GeneratedValue(strategy="IDENTITY") 
    */ 
    private $id; 

    /** 
    * @var \DateTime 
    * 
    * @ORM\Column(name="start", type="time", nullable=false) 
    */ 
    private $start; 

    /** 
    * @var \DateTime 
    * 
    * @ORM\Column(name="end", type="time", nullable=false) 
    */ 
    private $end; 

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



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

    /** 
    * Set start 
    * 
    * @param \DateTime $start 
    * 
    * @return TimeSlot 
    */ 
    public function setStart($start) 
    { 
     $this->start = $start; 

     return $this; 
    } 

    /** 
    * Get start 
    * 
    * @return \DateTime 
    */ 
    public function getStart() 
    { 
     return $this->start; 
    } 

    /** 
    * Set end 
    * 
    * @param \DateTime $end 
    * 
    * @return TimeSlot 
    */ 
    public function setEnd($end) 
    { 
     $this->end = $end; 

     return $this; 
    } 

    /** 
    * Get end 
    * 
    * @return \DateTime 
    */ 
    public function getEnd() 
    { 
     return $this->end; 
    } 

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

     return $this; 
    } 

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

论文实体使用一个表来加入他们的联系。此表还包含一个id，因为一行可以被另一个表引用。

这里是最后的实体：

<?php 

namespace TDS\Entity; 

use Doctrine\ORM\Mapping as ORM; 

/** 
* CoursesLevelsPlaces 
* 
* @ORM\Table(name="courses_levels_places", uniqueConstraints={@ORM\UniqueConstraint(name="id_course", columns={"id_course", "id_level", "id_place", "id_time_slot"})}, indexes={@ORM\Index(name="courses", columns={"id_course"}), @ORM\Index(name="levels", columns={"id_level"}), @ORM\Index(name="places", columns={"id_place"}), @ORM\Index(name="time_slot", columns={"id_time_slot"})}) 
* @ORM\Entity 
*/ 
class CoursesLevelsPlaces 
{ 
    /** 
    * @var integer 
    * 
    * @ORM\Column(name="id", type="integer", nullable=false) 
    * @ORM\Id 
    * @ORM\GeneratedValue(strategy="IDENTITY") 
    */ 
    private $id; 

    /** 
    * @var \TDS\Entity\Courses 
    * 
    * @ORM\ManyToOne(targetEntity="TDS\Entity\Courses") 
    * @ORM\JoinColumns({ 
    * @ORM\JoinColumn(name="id_course", referencedColumnName="id") 
    * }) 
    */ 
    private $idCourse; 

    /** 
    * @var \TDS\Entity\Levels 
    * 
    * @ORM\ManyToOne(targetEntity="TDS\Entity\Levels") 
    * @ORM\JoinColumns({ 
    * @ORM\JoinColumn(name="id_level", referencedColumnName="id") 
    * }) 
    */ 
    private $idLevel; 

    /** 
    * @var \TDS\Entity\Places 
    * 
    * @ORM\ManyToOne(targetEntity="TDS\Entity\Places") 
    * @ORM\JoinColumns({ 
    * @ORM\JoinColumn(name="id_place", referencedColumnName="id") 
    * }) 
    */ 
    private $idPlace; 

    /** 
    * @var \TDS\Entity\TimeSlot 
    * 
    * @ORM\ManyToOne(targetEntity="TDS\Entity\TimeSlot") 
    * @ORM\JoinColumns({ 
    * @ORM\JoinColumn(name="id_time_slot", referencedColumnName="id") 
    * }) 
    */ 
    private $idTimeSlot; 



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

    /** 
    * Set idCourse 
    * 
    * @param \TDS\Entity\Courses $idCourse 
    * 
    * @return CoursesLevelsPlaces 
    */ 
    public function setIdCourse(\TDS\Entity\Courses $idCourse = null) 
    { 
     $this->idCourse = $idCourse; 

     return $this; 
    } 

    /** 
    * Get idCourse 
    * 
    * @return \TDS\Entity\Courses 
    */ 
    public function getIdCourse() 
    { 
     return $this->idCourse; 
    } 

    /** 
    * Set idLevel 
    * 
    * @param \TDS\Entity\Levels $idLevel 
    * 
    * @return CoursesLevelsPlaces 
    */ 
    public function setIdLevel(\TDS\Entity\Levels $idLevel = null) 
    { 
     $this->idLevel = $idLevel; 

     return $this; 
    } 

    /** 
    * Get idLevel 
    * 
    * @return \TDS\Entity\Levels 
    */ 
    public function getIdLevel() 
    { 
     return $this->idLevel; 
    } 

    /** 
    * Set idPlace 
    * 
    * @param \TDS\Entity\Places $idPlace 
    * 
    * @return CoursesLevelsPlaces 
    */ 
    public function setIdPlace(\TDS\Entity\Places $idPlace = null) 
    { 
     $this->idPlace = $idPlace; 

     return $this; 
    } 

    /** 
    * Get idPlace 
    * 
    * @return \TDS\Entity\Places 
    */ 
    public function getIdPlace() 
    { 
     return $this->idPlace; 
    } 

    /** 
    * Set idTimeSlot 
    * 
    * @param \TDS\Entity\TimeSlot $idTimeSlot 
    * 
    * @return CoursesLevelsPlaces 
    */ 
    public function setIdTimeSlot(\TDS\Entity\TimeSlot $idTimeSlot = null) 
    { 
     $this->idTimeSlot = $idTimeSlot; 

     return $this; 
    } 

    /** 
    * Get idTimeSlot 
    * 
    * @return \TDS\Entity\TimeSlot 
    */ 
    public function getIdTimeSlot() 
    { 
     return $this->idTimeSlot; 
    } 
}

当我做一个查询来获取请求长一段时间和休息运行所有CoursesLevelsPlaces。试图使print_r的结果：

以下是我提出请求：

$qb = $this->getEm()->createQueryBuilder(); 
$qb->select('clp')->from('TDS\Entity\CoursesLevelsPlaces', 'clp'); 
$list = $qb->getQuery()->getResult();

问题是我不能找回我的实体。例如，如果我在课程上提出请求，结果将正确显示。每个CoursesLevelsPlaces行都是唯一的，并且与其他实体具有一对一的关系。

有关信息，我产生从我的数据库架构（反向学说）论文实体

你有任何想法，为什么我得到这样的结果？谢谢

来源

2015-07-05 mika

你不应该print_r或var_dump完整的学说2实体，因为所有的元数据等也将被打印。这将导致内存问题，并且输出将很大程度上为您的浏览器显示。

您有几种选择

通过将搜索结果进行迭代，并使用getter方法来检索数据。
```
foreach ($list as $entity) { 
    echo $entity->getId() . PHP_EOL; 
} 
```

从doctrine使用Debug util。

foreach ($list as $entity) { 
    Doctrine\Common\Util\Debug::dump($entity); 
}

使用调试器（Xdebug的），把一个断点在你的IDE和观看实体内容

来源

2015-07-06 14:29:01

谢谢，仅此而已。我没有想到这个。 – mika

Zend 2 + Doctrine实体请求

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