Symfony创建教义ORM服务

Question

为了便于学习，我正在用symfony3编写一个非常简单的API。我正在努力报道服务领域。

我有一个存储库，我想注入教义ORM，这样做，我试图在我的services.xml文件中创建教义ORM服务。

Services.xml：

    <service
            id="orm.doctrine.service"
            class="Book\BookBundle\DoctrineORM\DoctrineRepo">
        <argument type="service" id="doctrine.orm.entity_manager" />
    </service>

    <service
            id="book.repo.create_book_repository"
            class="Book\BookBundle\Repositories\CreateBookRepository">
        <argument type="service" id="orm.doctrine.service" />
    </service>

学说是一个安装了作曲家的供应商库，因此我的捆绑包中没有它的类。相反，我试图引用它。

理论回购：

<?php

namespace Book\BookBundle\DoctrineORM;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class DoctrineRepo extends Controller
{

    private $db;

    public function initDoctrine()
    {
        $this->db = $this->get('doctrine.orm.entity_manager');
        return $this->db;
    }

}

CreateBookRepository：

<?php

名称空间Book\BookBundle\Repositories；

使用Book\BookBundle\Entity\BookEntity；使用Book\BookBundle\DoctrineORM\DoctrineRepo；

类CreateBookRepository{

private $db;

public function __construct(
    DoctrineRepo $doctrineRepository
) {
    $this->db = $doctrineRepository;
}

public function createRepository()
{

    $product = new BookEntity();
    $product->setTitle('Test Title');
    $product->setAuthor('Leps');
    $product->setReleaseDate(new \DateTime);
    $product->setGender('Scfi');
    $product->setDescription('Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
        Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in
        voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt
        mollit anim id est laborum.');


    $em = $this->db->initDoctrine()->getDoctrine()->getManager();

    $em->persist($product);
    $em->flush();

}

我错过了什么还是不明白...？

Answer 1

首先，让我们配置我们的服务：

#../services.xml

<service id="book.manager" class="Book\BookBundle\Manager\BookManager">
    <argument type="service" id="doctrine.orm.entity_manager" />
</service>

第二，创建服务（BookManager）

namespace Book\BookBundle\Manager;

use Doctrine\ORM\EntityManager;
use Book\BookBundle\Entity\BookEntity;

class BookManager
{
    /** @var Entity Manager */
    protected $em;

    /** 
     * Constructor
     *
     * @param \Doctrine\ORM\EntityManager $em
     */
    public function __construct(EntityManager $em)
    {
        $this->em = $em;
    }


    public function createBook(BookEntity $book)
    {
        /... a specific logic if you need .../

        $this->em->persist($book);
        $this->em->flush();
    }
}

最后，在需要服务的地方（例如在控制器中）调用服务

public function yourSpecificAction()
{
    // We instanciate a new object

    $book = new BookEntity();
    $book->setTitle('Test Title');
    $book->setAuthor('Leps');
    $book->setReleaseDate(new \DateTime);
    $book->setGender('Scfi');
    $book->setDescription('Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
    Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in
    voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt
    mollit anim id est laborum.');

    // we call the service
    $bookManager = $this->get('book.manager');

    // we call the method you need
    $bookManager->createBook($book);


    // same to: $bookManager = $this->get('book.manager')->createBook($book);
}

希望它能帮助你。。。

Answer 2

如果您需要在特定服务中注入原则实体管理器，请查看以下内容：

<service id="your_service" class="path_to_your_class_service">
     <argument type="service" id="doctrine.orm.entity_manager" />
</service>