产品和评论之间的学说查询生成器[symfony2]

Question

当我在查看www.example.com/product/10此产品是链接到a User Id.现在，我想只显示Comment是链接到我查看的产品的User id。

表Comment是链接到表User，所以每个评论都有用户ID。表格Product（Post）也链接到表格用户，每个产品都有用户标识。

现在表Comment和Product还没有链接，我认为他们应该是这样我可以执行查询，但我不知道。

我正在使用FosCommentBundle进行评论。

控制器：

public function productAction($id, Request $request) 
    { 
     $session = $this->getRequest()->getSession(); 
     $em = $this->getDoctrine()->getManager(); 
     $findEntities = $em->getRepository('FLYBookingsBundle:Post')->findBy(array('id' => $id)); 
     $entities = $this->get('knp_paginator')->paginate($findEntities, $this->get('request')->query->get('page', 1), 9 
     ); 

     if ($session->has('cart')) 
      $cart = $session->get('cart'); 
     else 
      $cart = false; 
     if (!$entities) { 
      throw $this->createNotFoundException('Unable to find Post entity.'); 
     } 
     $id = 'thread_id'; 
     $thread = $this->container->get('fos_comment.manager.thread')->findThreadById($id); 
     if (null === $thread) { 
      $thread = $this->container->get('fos_comment.manager.thread')->createThread(); 
      $thread->setId($id); 
      $thread->setPermalink($request->getUri()); 

      // Add the thread 
      $this->container->get('fos_comment.manager.thread')->saveThread($thread); 
     } 
     $comments = $this->container->get('fos_comment.manager.comment')->findCommentTreeByThread($thread); 
     return $this->render('FLYBookingsBundle:Post:product.html.twig', array('entity' => $entities, 
      'cart' => $cart,'comments' => $comments, 
      'thread' => $thread)); 

    } 

Product.html.twig

<div id="fos_comment_thread" data-thread="{{ thread.id }}"> 
     {% include 'FOSCommentBundle:Thread:async.html.twig' with { 
             'comments': comments, 
             'thread': thread 
             } %} 

Comment.php

<?php 


namespace Application\Sonata\CommentBundle\Entity; 
use Doctrine\ORM\Mapping as ORM; 
use FOS\CommentBundle\Entity\Comment as BaseComment; 
use FOS\CommentBundle\Model\SignedCommentInterface; 
use Symfony\Component\Security\Core\User\UserInterface; 
use Application\Sonata\UserBundle\Entity\User; 

/** 
* @ORM\Entity 
* @ORM\ChangeTrackingPolicy("DEFERRED_EXPLICIT") 
*/ 
class Comment extends BaseComment implements SignedCommentInterface 
{ 
    /** 
    * @ORM\Id 
    * @ORM\Column(type="integer") 
    * @ORM\generatedValue(strategy="AUTO") 
    */ 

    protected $id; 

    /** 
    * Thread of this comment 
    * 
    * @var Thread 
    * @ORM\ManyToOne(targetEntity="Application\Sonata\CommentBundle\Entity\Thread") 
    */ 
    protected $thread; 
    /** 
    * Author of the comment 
    * 
    * @ORM\ManyToOne(targetEntity="Application\Sonata\UserBundle\Entity\User") 
    * @var User 
    */ 
    protected $author; 

    /** 
    * Sets the author of the Comment 
    * 
    * @param UserInterface $user 
    */ 
    public function setAuthor(UserInterface $author) 
    { 
     $this->author = $author; 
    } 

    /** 
    * Gets the author of the Comment 
    * 
    * @return UserInterface 
    */ 
    public function getAuthor() 
    { 
     return $this->author; 
    } 

    public function getAuthorName() 
    { 
     if (null === $this->getAuthor()) { 
      return 'Anonymous'; 
     } 

     return $this->getAuthor()->getUsername(); 
    } 

    /** 
    * Get id 
    * 
    * @return integer 
    */ 

    public function getId() 
    { 
     return $this->id; 
    } 

} 

post.php中

<?php 

namespace FLY\BookingsBundle\Entity; 

use Doctrine\ORM\Mapping as ORM; 
use Application\Sonata\UserBundle\Entity\User; 
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Security; 
use JMS\SecurityExtraBundle\Annotation\Secure; 
use Symfony\Component\Validator\Constraints as Assert; 
use Vich\UploaderBundle\Form\Type\VichImageType; 
use Symfony\Component\HttpFoundation\File\File; 
use Vich\UploaderBundle\Mapping\Annotation as Vich; 
use Symfony\Component\Form\Extension\Core\Type\FileType; 
/** 
* Post 
* 
* @ORM\Table(name="post") 
* @ORM\Entity(repositoryClass="FLY\BookingsBundle\Entity\PostRepository") 
* @Vich\Uploadable 
*/ 
class Post 
{ 
    /** 
    * @var integer 
    * 
    * @ORM\Column(name="id", type="integer") 
    * @ORM\Id 
    * @ORM\GeneratedValue(strategy="AUTO") 
    */ 

    private $id; 
    /** 
    * @var string 
    * 
    * @Assert\Length(min=2, max=20) 
    * 
    * @ORM\Column(name="username", type="string", length=45, nullable=true) 
    */ 
    private $username; 

    /** 
    * @var string 
    * 
    * @Assert\Regex("/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/") 
    * 
    * @ORM\Column(name="email", type="string", length=45, nullable=false) 
    */ 
    private $email; 
    /** 
    * @ORM\ManyToOne(targetEntity="FLY\BookingsBundle\Entity\Tva") 
    * @ORM\joinColumn(onDelete="SET NULL") 
    */ 
    private $tva; 

    /** 
    * @ORM\ManyToOne(targetEntity="FLY\BookingsBundle\Entity\Media") 
    * @ORM\joinColumn(onDelete="SET NULL") 
    */ 
    private $image; 
    /** 
    * @var string 
    * 
    * @Assert\Length(max=350) 
    * 
    * @ORM\Column(name="description", type="text" , length=125, nullable=true) 
    */ 
    private $description; 
    /** 
    * @var float 
    * 
    * @Assert\NotBlank() 
    * 
    * 
    * @Assert\Regex(
    *   pattern= "/^[1-9]\d{0,7}(?:\.\d{1,4})?$/", 
    *   message= "The First number can't start with 0" 
    *    ) 
    * 
    * @ORM\Column(name="price", type="float") 
    */ 
    private $price; 

    /** 
    * 
    * 
    * @ORM\ManyToOne(targetEntity="Application\Sonata\UserBundle\Entity\User") 
    * @ORM\JoinColumn(onDelete="CASCADE") 
    * @Security("user.getId() == post.getUser()") 
    */ 
    private $user; 
    /** 
    * @ORM\OneToOne(targetEntity="Quantity", cascade={"remove"}) 
    * @ORM\JoinColumn(name="sold_id", referencedColumnName="id") 
    */ 
    protected $sold; 
    /** 
    * Get id 
    * 
    * @return integer 
    */ 
    public function getId() 
    { 
     return $this->id; 
    } 
    /** 
    * Set username 
    * 
    * @param string $username 
    * 
    * @return Post 
    */ 
    public function setUsername($username) 
    { 
     $this->username = $username; 

     return $this; 
    } 

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

    /** 
    * Set email 
    * 
    * @param string $email 
    * 
    * @return Post 
    */ 
    public function setEmail($email) 
    { 
     $this->email = $email; 

     return $this; 

    } 

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


    /** 
    * Set price 
    * 
    * @param float $price 
    * @return Post 
    */ 
    public function setPrice($price) 
    { 
     $this->price = $price; 

     return $this; 
    } 

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

    /** 
    * @return User 
    */ 
    public function getUser() 
    { 
     return $this->user; 
    } 

    /* 
    * @param User $user 
    */ 
    public function setUser(User $user) 
    { 
     $this->user = $user; 

     return $this; 
    } 


    /** 
    * Set tva 
    * 
    * @param \FLY\BookingsBundle\Entity\Tva $tva 
    * @return Post 
    */ 
    public function setTva(\FLY\BookingsBundle\Entity\Tva $tva) 
    { 
     $this->tva = $tva; 

     return $this; 
    } 

    /** 
    * Get tva 
    * 
    * @return \FLY\BookingsBundle\Entity\Tva 
    */ 
    public function getTva() 
    { 
     return $this->tva; 
    } 

    /** 
    * Set image 
    * 
    * @param \FLY\BookingsBundle\Entity\Media $image 
    * @return Post 
    */ 
    public function setImage(\FLY\BookingsBundle\Entity\Media $image) 
    { 
     $this->image = $image; 

     return $this; 
    } 

    /** 
    * Get image 
    * 
    * @return \FLY\BookingsBundle\Entity\Media 
    */ 
    public function getImage() 
    { 
     return $this->image; 
    } 



    /** 
    * Set description 
    * 
    * @param string $description 
    * @return Post 
    */ 
    public function setDescription($description) 
    { 
     $this->description = $description; 

     return $this; 
    } 

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


    /** 
    * Set sold 
    * 
    * @param integer $sold 
    * @return Post 
    */ 
    public function setSold($sold) 
    { 
     $this->sold = $sold; 
     return $this; 
    } 

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


    /** 
    * NOTE: This is not a mapped field of entity metadata, just a simple property. 
    * 
    * @Vich\UploadableField(mapping="product_image", fileNameProperty="imageName") 
    * 
    * @var File 
    */ 
    private $imageFile; 

    /** 
    * @ORM\Column(type="string", length=255) 
    * 
    * @var string 
    */ 
    private $imageName; 

    /** 
    * @ORM\Column(type="datetime") 
    * 
    * @var \DateTime 
    */ 
    private $updatedAt; 

    /** 
    * If manually uploading a file (i.e. not using Symfony Form) ensure an instance 
    * of 'UploadedFile' is injected into this setter to trigger the update. If this 
    * bundle's configuration parameter 'inject_on_load' is set to 'true' this setter 
    * must be able to accept an instance of 'File' as the bundle will inject one here 
    * during Doctrine hydration. 
    * 
    * @param File|\Symfony\Component\HttpFoundation\File\UploadedFile $image 
    * 
    * @return User 
    */ 
    public function setImageFile(File $image = null) 
    { 
     $this->imageFile = $image; 

     if ($image) { 
      // It is required that at least one field changes if you are using doctrine 
      // otherwise the event listeners won't be called and the file is lost 
      $this->updatedAt = new \DateTime('now'); 
     } 

     return $this; 
    } 

    /** 
    * @return File 
    */ 
    public function getImageFile() 
    { 
     return $this->imageFile; 
    } 

    /** 
    * @param string $imageName 
    * 
    * @return User 
    */ 
    public function setImageName($imageName) 
    { 
     $this->imageName = $imageName; 

     return $this; 
    } 

    /** 
    * @return string 
    */ 
    public function getImageName() 
    { 
     return $this->imageName; 
    } 

} 

ADD：从评论

<?php 
namespace Application\Sonata\CommentBundle\Entity; 
use FLY\BookingsBundle\Entity\Post; 
use Application\Sonata\UserBundle\Entity\User; 
use Doctrine\ORM\EntityRepository; 

class CommentRepository extends EntityRepository 
{ 
    /** 
    * Get Comments for a single Product. 
    * @param Post $post 
    * @return mixed 
    */ 
    public function getCommentsForSinglePost(Post $post) 
    { 
     $qb = $this->createQueryBuilder('c') 
      ->where('c.post = :postId') 
      ->setParameter('postId', $post->getId()); 
     $query = $qb->getQuery(); 
     return $query->execute(); 
    } 
} 

关系到后（产品）：

/** 
* @ORM\ManyToOne(targetEntity="FLY\BookingsBundle\Entity\Post") 
* @ORM\JoinColumn(nullable=true) 
*/ 
private $post; 

/** 
* Set post 
* 
* @param \FLY\BookingsBundle\Entity\Post $post 
* @return Comment 
*/ 
public function setUser(\FLY\BookingsBundle\Entity\Post $post = null) 
{ 
    $this->post = $post; 
    return $this; 

} 

/** 
* Get post 
* 
* @return \FLY\BookingsBundle\Entity\Post 
*/ 
public function getPost() 
{ 
    return $this->post; 
} 

modication在控制器：

public function productAction($id, Request $request, $post) 
    { 
     $session = $this->getRequest()->getSession(); 
     $em = $this->getDoctrine()->getManager(); 
     $findEntities = $em->getRepository('FLYBookingsBundle:Post')->findBy(array('id' => $id)); 
     $entities = $this->get('knp_paginator')->paginate($findEntities, $this->get('request')->query->get('page', 1), 9 
     ); 

     if ($session->has('cart')) 
      $cart = $session->get('cart'); 
     else 
      $cart = false; 
     if (!$entities) { 
      throw $this->createNotFoundException('Unable to find Post entity.'); 
     } 
     $post = 'thread_id'; 
     $thread = $em->getRepository('ApplicationSonataCommentBundle:Comment')->getCommentsForSinglePost($post); 
     if (null === $thread) { 
      $thread = $this->container->get('fos_comment.manager.thread')->createThread(); 
      $thread->setId($post); 
      $thread->setPermalink($request->getUri()); 

      // Add the thread 
      $this->container->get('fos_comment.manager.thread')->saveThread($thread); 
     } 
     $comments = $this->container->get('fos_comment.manager.comment')->findCommentTreeByThread($thread); 
     return $this->render('FLYBookingsBundle:Post:product.html.twig', array('entity' => $entities, 
      'cart' => $cart,'comments' => $comments,'post' => $post, 
      'thread' => $thread)); 

    } 

错误：

Controller "FLY\BookingsBundle\Controller\PostController::productAction()" requires that you provide a value for the "$post" argument (because there is no default value or because there is a non optional argument after this one).

Answer 1

考虑到你有Many-To-One协会从Comment到Product。以下是您应该如何在CommentRepository中编写新方法以获取单个产品的评论列表。

/** 
* Get Comments for a single Product. 
* @param Product $product 
* @return mixed 
*/ 
public function getCommentsForSingleProduct(Product $product) 
{ 
    $qb = $this->createQueryBuilder('c') 
     ->where('c.product = :productId') 
     ->setParameter('productId', $product->getId()); 
    $query = $qb->getQuery(); 
    return $query->execute(); 
} 

您可以根据您的要求添加任何其他条件。或添加排序，或分页等。

注：我没有添加用户关联。需要帮助请叫我。