Symfony 2 Doctrine：Fixtures：加载未定义的索引

Question

我最近一直在使用Symfony2，我一直在关注这个教程： tutorial.co.symblog.co.uk

不幸的是，由于教程很久以前就已经写好了，很多东西都是错的。 我已经能够通过常识来解决大部分问题，但这个问题很棘手......

我正在创建一个博客，并拥有博客帖子的数据夹具，以及这些博客帖子的评论。 当我跑：

php app/console doctrine:fixtures load

我明白了：

PHP Notice:  Undefined index: blog-1 in /private_html/symfony/symblog/vendor/doctrine/data-fixtures/lib/Doctrine/Common/DataFixtures/ReferenceRepository.php on line 154

这是我的博客装置：

<?php
// src/Blogger/BlogBundle/DataFixtures/ORM/BlogFixtures.php

namespace Blogger\BlogBundle\DataFixtures\ORM;

use Doctrine\Common\DataFixtures\AbstractFixture;
use Doctrine\Common\DataFixtures\OrderedFixtureInterface;
use Doctrine\Common\Persistence\ObjectManager;
use Blogger\BlogBundle\Entity\Blog;

class BlogFixtures implements OrderedFixtureInterface
{
    /**
     * {@inheritDoc}
     */
    public function load(ObjectManager $manager)
    {
        $blog1 = new Blog();
        $blog1->setTitle('A day with Symfony2');
        $blog1->setBlog('Lorem ipsum dolor sit amet, consectetur adipiscing eletra electrify denim vel ports.\nLorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi ut velocity magna. Etiam vehicula nunc non leo hendrerit commodo. Vestibulum vulputate mauris eget erat congue dapibus imperdiet justo scelerisque. Nulla consectetur tempus nisl vitae viverra. Cras el mauris eget erat congue dapibus imperdiet justo scelerisque. Nulla consectetur tempus nisl vitae viverra. Cras elementum molestie vestibulum. Morbi id quam nisl. Praesent hendrerit, orci sed elementum lobortis, justo mauris lacinia libero, non facilisis purus ipsum non mi. Aliquam sollicitudin, augue id vestibulum iaculis, sem lectus convallis nunc, vel scelerisque lorem tortor ac nunc. Donec pharetra eleifend enim vel porta.');
        $blog1->setImage('beach.jpg');
        $blog1->setAuthor('Parth Sarin');
        $blog1->setTags('symfony2, php, paradise, symblog');
        $blog1->setCreated(new \DateTime());
        $blog1->setUpdated($blog1->getCreated());
        $manager->persist($blog1);

        $blog2 = new Blog();
        $blog2->setTitle('The pool on the roof must have a leak');
        $blog2->setBlog('Vestibulum vulputate mauris eget erat congue dapibus imperdiet justo scelerisque. Na. Cras elementum molestie vestibulum. Morbi id quam nisl. Praesent hendrerit, orci sed elementum lobortis.');
        $blog2->setImage('pool_leak.jpg');
        $blog2->setAuthor('Zero Cool');
        $blog2->setTags('pool, leaky, hacked, movie, hacking, symblog');
        $blog2->setCreated(new \DateTime("2011-07-23 06:12:33"));
        $blog2->setUpdated($blog2->getCreated());
        $manager->persist($blog2);

        $blog3 = new Blog();
        $blog3->setTitle('Misdirection. What the eyes see and the ears hear, the mind believes');
        $blog3->setBlog('Lorem ipsumvehicula nunc non leo hendrerit commodo. Vestibulum vulputate mauris eget erat congue dapibus imperdiet justo scelerisque.');
        $blog3->setImage('misdirection.jpg');
        $blog3->setAuthor('Gabriel');
        $blog3->setTags('misdirection, magic, movie, hacking, symblog');
        $blog3->setCreated(new \DateTime("2011-07-16 16:14:06"));
        $blog3->setUpdated($blog3->getCreated());
        $manager->persist($blog3);

        $blog4 = new Blog();
        $blog4->setTitle('The grid - A digital frontier');
        $blog4->setBlog('Lorem commodo. Vestibulum vulputate mauris eget erat congue dapibus imperdiet justo scelerisque. Nulla consectetur tempus nisl vitae viverra.');
        $blog4->setImage('the_grid.jpg');
        $blog4->setAuthor('Kevin Flynn');
        $blog4->setTags('grid, daftpunk, movie, symblog');
        $blog4->setCreated(new \DateTime("2011-06-02 18:54:12"));
        $blog4->setUpdated($blog4->getCreated());
        $manager->persist($blog4);

        $blog5 = new Blog();
        $blog5->setTitle('You\'re either a one or a zero. Alive or dead');
        $blog5->setBlog('Lorem ipsum dolor sit amet, consectetur adipiscing elittibulum vulputate mauris eget erat congue dapibus imperdiet justo scelerisque.');
        $blog5->setImage('one_or_zero.jpg');
        $blog5->setAuthor('Gary Winston');
        $blog5->setTags('binary, one, zero, alive, dead, !trusting, movie, symblog');
        $blog5->setCreated(new \DateTime("2011-04-25 15:34:18"));
        $blog5->setUpdated($blog5->getCreated());
        $manager->persist($blog5);

        $manager->flush();

        $this->addReference('blog-1', $blog1);
        $this->addReference('blog-2', $blog2);
        $this->addReference('blog-3', $blog3);
        $this->addReference('blog-4', $blog4);
        $this->addReference('blog-5', $blog5);
    }

    /**
     * {@inheritDoc}
     */
    public function getOrder() {
        return 1;
    }
}

如果您还有其他需要，请告诉我，并且一如既往地提前感谢！

Answer 1

在BlogFixtures类中扩展AbstractFixture ：

class BlogFixtures  extends AbstractFixture implements OrderedFixtureInterface{ ... }

docs： http ： //symfony.com/doc/current/bundles/DoctrineFixturesBundle/index.html#sharing-objects-between-fixtures