标签:products symfony radmin array 官方 function str const res
根据官方文档对Fixture进行学习
首先使用
composer require --dev doctrine/doctrine-fixtures-bundle
来导入扩展
之后注意,如果symfony版本不是3以下的,需要添加数组元素到AppKernel当中,即下列语句,注意添加到in_array对应的那块
$bundles[] = new Doctrine\Bundle\FixturesBundle\DoctrineFixturesBundle();
FixtureBundle本质上可以看作一个php类,创建一个Fixture类,用它来,使用
Doctrine\Common\Persistence\ObjectManage 的ObjectManage类来托管(persist)需要加入的对象实体,对对象实体进行初始化,之后使用 flush方法来更新入数据库当中
namespace App\DataFixtures;
use App\Entity\Product;
use Doctrine\Bundle\FixturesBundle\Fixture;
use Doctrine\Common\Persistence\ObjectManager;
class AppFixtures extends Fixture
{
public function load(ObjectManager $manager)
{
// create 20 products! Bam!
for ($i = 0; $i < 20; $i++) {
$product = new Product();
$product->setName(‘product ‘.$i);
$product->setPrice(mt_rand(10, 100));
$manager->persist($product);
}
$manager->flush();
}
}
之后命令行执行
php bin/console doctrine:fixtures:load
将数据更新入数据库当中
除此之外,如果你想讲services和Fixture相结合的话,你的Fixture就可以当做是一个Services进行使用,可以注入任何东西,实例,这里的就是说可以在Fixture当中添加构造函数,变量等,
注意这里的encoder->encodePassword方法可以对密码进行加密,具体实现不说了,
use Symfony\Component\Security\Core\Encoder\UserPasswordEncoderInterface;
// ...
private $encoder;
public function __construct(UserPasswordEncoderInterface $encoder)
{
$this->encoder = $encoder;
}
// ...
public function load(ObjectManager $manager)
{
$user = new User();
$user->setUsername(‘admin‘);
$password = $this->encoder->encodePassword($user, ‘pass_1234‘);
$user->setPassword($password);
$manager->persist($user);
$manager->flush();
}
同时可以在一个Fixture当中调用另一个Fixture,一个Fixture当中使用
this->addReference(self::ADMIN_USER_REFERENCE, $userAdmin);
将$userAdmin变量交给addReference,之后在另一个Fixture当中,使用getReference方法来获得$userAdmin变量,参数为,类名:add时候的别名
$userGroup->addUser($this->getReference(UserFixtures::ADMIN_USER_REFERENCE));
具体实例如下
// src/DataFixtures/UserFixtures.php
// ...
class UserFixtures extends Fixture
{
public const ADMIN_USER_REFERENCE = ‘admin-user‘;
public function load(ObjectManager $manager)
{
$userAdmin = new User(‘admin‘, ‘pass_1234‘);
$manager->persist($userAdmin);
$manager->flush();
// other fixtures can get this object using the UserFixtures::ADMIN_USER_REFERENCE constant
$this->addReference(self::ADMIN_USER_REFERENCE, $userAdmin);
}
}
// src/DataFixtures/GroupFixtures.php
// ...
class GroupFixtures extends Fixture
{
public function load(ObjectManager $manager)
{
$userGroup = new Group(‘administrators‘);
// this reference returns the User object created in UserFixtures
$userGroup->addUser($this->getReference(UserFixtures::ADMIN_USER_REFERENCE));
$manager->persist($userGroup);
$manager->flush();
}
}
个人感觉这个东西和doctrine的getManager方法差不多,都是对对象进行托管,之后更新入数据库当中,
标签:products symfony radmin array 官方 function str const res
原文地址:https://www.cnblogs.com/eenio/p/10538694.html