Symfony 3.4 没有元数据类来处理错误 [英] Symfony 3.4 No Metadata Classes to process Error

问题描述

我已经安装了 symfony 3.4 和学说包

I have installed symfony 3.4 and doctrine packages

"php": ">=5.5.9",
        "doctrine/doctrine-bundle": "^1.8",
        "doctrine/doctrine-migrations-bundle": "^1.3",
        "doctrine/orm": "^2.5",
        "incenteev/composer-parameter-handler": "^2.0",
        "sensio/distribution-bundle": "^5.0.19",
        "sensio/framework-extra-bundle": "^5.0.0",
        "symfony/monolog-bundle": "^3.1.0",
        "symfony/polyfill-apcu": "^1.0",
        "symfony/swiftmailer-bundle": "^2.6.4",
        "symfony/symfony": "3.4.*",
        "twig/twig": "^1.0||^2.0"

使用以下命令创建数据库

Created database using following command

php bin/console doctrine:database:create

G:\XAMPP\htdocs\project>php bin/console doctrine:schema:validate
[Mapping]  OK - The mapping files are correct.
[Database] OK - The database schema is in sync with the mapping files.

G:\XAMPP\htdocs\project>php bin/console doctrine:schema:validate
[Mapping]  OK - The mapping files are correct.
[Database] OK - The database schema is in sync with the mapping files.

G:\XAMPP\htdocs\project>php bin/console doctrine:schema:update --force
No Metadata Classes to process.

G:\XAMPP\htdocs\project>

每当我运行 php bin/console algorithm:schema:update --force 命令时，它都会抛出类似

Whenever i ran php bin/console doctrine:schema:update --force command it will throw an error like

没有要处理的元数据类.

No Metadata Classes to process.

我在文档中创建了实体类http://symfony.com/doc/3.4/doctrine.html

I created entity class as in the documentation http://symfony.com/doc/3.4/doctrine.html

产品实体类

<?php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="product")
 */
class Product
{
    /**
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=100)
     */
    private $name;

    /**
     * @ORM\Column(type="decimal", scale=2)
     */
    private $price;


    /**
     * Get id
     *
     * @return int
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set name
     *
     * @param string $name
     *
     * @return Product
     */
    public function setName($name)
    {
        $this->name = $name;

        return $this;
    }

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

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

        return $this;
    }

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

推荐答案

是的，我终于发现问题出在 John.orm.php 文件上，该文件会在我运行 php bin/时生成控制台教义:生成:实体

Yes finally i found the issue is with John.orm.php file which will generated when i ran php bin/console doctrine:generate:entity

我使用以下命令创建了实体类

I have created Entity class using following command

php bin/console doctrine:generate:entity

然后它会提示

Welcome to the Doctrine2 entity generator

This command helps you generate Doctrine2 entities.

First, you need to give the entity name you want to generate.
You must use the shortcut notation like AcmeBlogBundle:Post.

The Entity shortcut name: AppBundle:John

Determine the format to use for the mapping information.

Configuration format (yml, xml, php, or annotation) [annotation]: php

Instead of starting with a blank entity, you can add some fields now.
Note that the primary key will be added automatically (named id).

Available types: array, simple_array, json_array, object,
boolean, integer, smallint, bigint, string, text, datetime, datetimetz,
date, time, decimal, float, binary, blob, guid.

New field name (press <return> to stop adding fields): id
 Field "id" is already defined.
New field name (press <return> to stop adding fields): username
Field type [string]: string
Field length [255]:
Is nullable [false]: true
Unique [false]: false

New field name (press <return> to stop adding fields): password
Field type [string]:
Field length [255]:
Is nullable [false]: true
Unique [false]:

New field name (press <return> to stop adding fields): dob
Field type [string]: date
Is nullable [false]: true
Unique [false]:

New field name (press <return> to stop adding fields):


  Entity generation


  created .\src\AppBundle/Entity/John.php
  created .\src\AppBundle/Resources/config/doctrine/
  created .\src\AppBundle/Resources/config/doctrine/John.orm.php
> Generating entity class G:\XAMPP\htdocs\project\src\AppBundle\Entity\John.php:
 OK!
> Generating repository class G:\XAMPP\htdocs\project\src\AppBundle\Repository\J
ohnRepository.php: OK!
> Generating mapping file G:\XAMPP\htdocs\project\src\AppBundle\Resources\config
\doctrine\John.orm.php: OK!


  Everything is OK! Now get to work :).



G:\XAMPP\htdocs\project>

成功后会在AppBundle\Entity;文件夹下创建实体类，在AppBundle\Repository;文件夹下创建repository类，还会生成John.ormAppBundle\Resources\config\doctrine\John.orm.php

And after success it will will create entity class in AppBundle\Entity; folder and repository class in AppBundle\Repository; also it will generate John.orm.php in AppBundle\Resources\config\doctrine\John.orm.php

删除 John.orm.php 文件后，如果我运行 php bin/console algorithm:schema:update --force 然后它会生成表格.

After deleting John.orm.php file if i run php bin/console doctrine:schema:update --force then it will generate tables.

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