准备升级

检查中列出的所有依赖项和捆绑包 composer.json 如果您已经发布了与symfony3.4兼容的版本,您可以通过在Packagist上搜索每个包来实现这一点 EasyAdmin 与Symfony 3兼容,因为 requires symfony/*: ~2.3 ). 如果其中一个依赖项与symfony3不兼容,则必须找到替换包或修补这些库。

编写器.json

为了从Symfony升级你的应用程序 2.8 致Symfony 3.4 编写器.json 文件:

( […] 表示未更改的代码)

旧的( 2.8

{
    […]
    "autoload-dev": {
        "files": [ "vendor/symfony/symfony/src/Symfony/Component/VarDumper/Resources/functions/dump.php" ]
     },
    "require": {
        "php": ">=5.3.9",
        "doctrine/doctrine-bundle": "~1.4",
        "doctrine/orm": "^2.4.8",
        "incenteev/composer-parameter-handler": "~2.0",
        "sensio/distribution-bundle": "~4.0",
        "sensio/framework-extra-bundle": "^3.0.2",
        "symfony/monolog-bundle": "^3.0.2",
        "symfony/swiftmailer-bundle": "~2.3,>=2.3.10",
        "symfony/symfony": "2.8.*",
        "twig/twig": "^1.0||^2.0"
    },
    "require-dev": {
        "sensio/generator-bundle": "~3.0",
        "symfony/phpunit-bridge": "~2.7"
    },
    "config": {
        "bin-dir": "bin",
        "platform": {
            "php": "5.6"
        },
        "sort-packages": true
    },
    "extra": {
        "symfony-app-dir": "app",
        "symfony-web-dir": "web",
        "symfony-assets-install": "relative",
        […]
        "branch-alias": {
            "dev-master": "2.8-dev"
        }
    }
}

新建( 3.4

{
    […]
    "autoload-dev": {
        "psr-4": { "Tests\\": "tests/" },
        "files": [ "vendor/symfony/symfony/src/Symfony/Component/VarDumper/Resources/functions/dump.php" ]
     },
    "require": {
        "php": ">=5.5.9",
        "doctrine/doctrine-bundle": "^1.6",
        "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"
    },
    "require-dev": {
        "sensio/generator-bundle": "^3.0",
        "symfony/phpunit-bridge": "^3.0"
    },
    "config": {
        "platform": {
            "php": "5.6"
        },
        "sort-packages": true
    },

    "extra": {
        "symfony-app-dir": "app",
        "symfony-bin-dir": "bin",
        "symfony-var-dir": "var",
        "symfony-web-dir": "web",
        "symfony-tests-dir": "tests",
        "symfony-assets-install": "relative",
        […]
        "branch-alias": {
            "dev-master": "3.4-dev"
        }
    }
}

摘要

• autoload-dev.psr-4 已添加(必须更改测试目录的路径)
• Symfony和依赖项已更新
• symfony/polyfill-apcu 是一个新的依赖项
• extra 已更新以使用新的目录结构: var 临时文件等。
• config.bin-dir 已删除

有关升级的更多详细信息: → 3.0 , → 3.1 , → 3.2 → 3.3 , → 3.4

添加 getRootDir 和更新 registerContainerConfiguration 功能:

public function getRootDir()
{
    return __DIR__;
}

public function registerContainerConfiguration(LoaderInterface $loader)
{
    $loader->load($this->getRootDir().'/config/config_'.$this->getEnvironment().'.yml');
}

缓存和日志

如果你想 cache 和 logs var/ ,您必须更新 app/AppKernel.php 通过添加以下行来创建文件:

public function getCacheDir()
{
    return dirname(__DIR__).'/var/cache/'.$this->getEnvironment();
}
public function getLogDir()
{
    return dirname(__DIR__).'/var/logs';
}

然后创建 目录并放置一个空文件 .gitkeep

并将这些更改应用于 .gitignore 文件:

/var/cache/*
/var/logs/*
!var/cache/.gitkeep
!var/logs/.gitkeep

另请参见: What is the new Symfony 3 directory structure?

编写器.json 文件,则必须更新依赖项:

composer update

然后可能需要刷新缓存:

php app/console cache:clear --env=dev

注意:为了得到 编写器.json 文件夹:

# create Symfony "2.8.*" project in the "2.8" directory
composer create-project symfony/framework-standard-edition "2.8" "2.8.*" --no-interaction -v
# create Symfony "3.4.*" project in the "3.4" directory
composer create-project symfony/framework-standard-edition "3.4" "3.4.*" --no-interaction -v
# compare the Symfony 2.8 and 3.4 composer.json files
diff -u 2.8/composer.json 3.4/composer.json

差异可在 GitHub 我也是。

奖金: enable autowiring of services .

现在,您可以使用名为 校长 (我是这本书的作者)。它为许多框架准备了一套,Symfony框架是最完整的。还包括您可能需要的PHP升级。

有关此特定升级路径的详细信息,请参阅: How to Upgrade Symfony 2.8 to 3.4