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Symfony2实现在doctrine中内置数据的方法_PHP

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2016-05-28 11:48:49903browse

本文实例讲述了Symfony2实现在doctrine中内置数据的方法。分享给大家供大家参考,具体如下:

我们在使用symfony的时候,有时需要在数据库中内置一些数据,那么我们如何在doctrine中设置呢?

所幸,symfony已经为我们封装好了。这里,我们需要用到DoctrineFixturesBundle。

第一步,在composer.json中引入所需的DoctrineFixturesBundle:

{
  "require": {
    "doctrine/doctrine-fixtures-bundle": "2.2.*"
  }
}

第二步,执行composer:

composer update doctrine/doctrine-fixtures-bundle

第三步,在内核(app/AppKernel.php)中注册此bundle:

// ...
public function registerBundles()
{
  $bundles = array(
    // ...
    new Doctrine\Bundle\FixturesBundle\DoctrineFixturesBundle(),
    // ...
  );
  // ...
}

第四步,在需要内置数据的bundle下创建一个PHP类文件,如src/Acme/HelloBundle/DataFixtures/ORM/LoadUserData.php,其代码如下:

// src/Acme/HelloBundle/DataFixtures/ORM/LoadUserData.php
namespace Acme\HelloBundle\DataFixtures\ORM;
use Doctrine\Common\DataFixtures\FixtureInterface;
use Doctrine\Common\Persistence\ObjectManager;
use Acme\HelloBundle\Entity\User;
class LoadUserData implements FixtureInterface
{
  /**
   * {@inheritDoc}
   */
  public function load(ObjectManager $manager)
  {
    $userAdmin = new User();
    $userAdmin->setUsername('admin');
    $userAdmin->setPassword('test');
    $manager->persist($userAdmin);
    $manager->flush();
  }
}

第五步,通过console执行内置数据命令:

php app/console doctrine:fixtures:load #为防止数据库中原先的值被清除,可使用 --append 参数

此命令有以下三个参数:

fixtures=/path/to/fixture – Use this option to manually specify the directory where the fixtures classes should be loaded;
append – Use this flag to append data instead of deleting data before loading it (deleting first is the default behavior);
em=manager_name – Manually specify the entity manager to use for loading the data.

官方文档:http://symfony.com/doc/current/bundles/DoctrineFixturesBundle/index.html

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