database - Laravel - 在 config/database.php 中执行逻辑

Question

众所周知，在 Laravel 中 config/database.php 是一堆数组和值。但对于某些情况，我需要在那里做一些逻辑，并且我设法在 config/database.php 中做一些简单的逻辑，并且它按照我想要的方式工作(可以引用下面的代码)，但是我想知道这样做是否可行/实用？

如果不切实际，您能否建议获得与下面相同的结果的其他方法是什么？

'connections' => [

    'mysql' => (function(){ 
        $config = [
            'driver' => 'mysql',
            'host' => env('DB_HOST', '127.0.0.1'),
            'port' => env('DB_PORT', '3306'),
            'database' => env('DB_DATABASE', 'live_db'),
            'username' => env('DB_USERNAME', 'myuser'),
            'password' => env('DB_PASSWORD', '2309423234'),
            'unix_socket' => env('DB_SOCKET', ''),
            'charset' => 'utf8',
            'collation' => 'utf8_unicode_ci',
            'prefix' => 'gn_',
            //'prefix_indexes' => true,
            'strict' => false,
            'engine' => env('DB_ENGINE', null),
        ]; 

        // do some logic here (and it's working!!)
        // but........
        // is it okay to do like this?
        if(env('DB_WITH_SSLMODE', false)){
            $config += [
                'sslmode' => env('DB_SSLMODE', 'prefer'),
                'options'   => [
                    PDO::MYSQL_ATTR_SSL_CA    => env('DB_OPT_MYSQL_ATTR_SSL_CA', 'C:\wamp64\bin\cloudsql\certificates\server-ca.pem'),
                    PDO::MYSQL_ATTR_SSL_CERT    => env('DB_OPT_MYSQL_ATTR_SSL_CERT', 'C:\wamp64\bin\cloudsql\certificates\client-cert.pem'),
                    PDO::MYSQL_ATTR_SSL_KEY    => env('DB_OPT_MYSQL_ATTR_SSL_KEY', 'C:\wamp64\bin\cloudsql\certificates\client-key.pem'),
                    PDO::MYSQL_ATTR_SSL_VERIFY_SERVER_CERT => env('DB_OPT_MYSQL_ATTR_SSL_VERIFY_SERVER_CERT', false)
                ],
            ];
        }

        return $config;
    })(),

],

Answer 1

使用三元运算符怎么样？ (几乎就像 Laravel 5.8 中默认完成的那样)。

注意:第一个解决方案不会从配置数组中删除 sslmode。如果您需要这样做，请选择第二个选项!

1)它应该像这样工作:

'connections' => [
    'mysql' => [
        'driver' => 'mysql',
        'host' => env('DB_HOST', '127.0.0.1'),
        'port' => env('DB_PORT', '3306'),
        'database' => env('DB_DATABASE', 'forge'),
        'username' => env('DB_USERNAME', 'forge'),
        'password' => env('DB_PASSWORD', ''),
        'unix_socket' => env('DB_SOCKET', ''),
        'charset' => 'utf8mb4',
        'collation' => 'utf8mb4_unicode_ci',
        'prefix' => '',
        'prefix_indexes' => true,
        'strict' => true,
        'engine' => null,
        'sslmode' => env('DB_WITH_SSLMODE') ? env('DB_SSLMODE','prefer') : null,
        'options' => (extension_loaded('pdo_mysql') && env('DB_WITH_SSLMODE')) ? [
            PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
            PDO::MYSQL_ATTR_SSL_CERT => env('MYSQL_ATTR_SSL_CERT'),
            PDO::MYSQL_ATTR_SSL_KEY => env('MYSQL_ATTR_SSL_KEY'),
            PDO::MYSQL_ATTR_SSL_VERIFY_SERVER_CERT => env('MYSQL_ATTR_SSL_VERIFY_SERVER_CERT')
        ] : [],
    ],
],

或

2) 肮脏的解决方案，但有一个条件:

'connections' => [
    'mysql' => array_merge([
        'driver' => 'mysql',
        'host' => env('DB_HOST', '127.0.0.1'),
        'port' => env('DB_PORT', '3306'),
        'database' => env('DB_DATABASE', 'forge'),
        'username' => env('DB_USERNAME', 'forge'),
        'password' => env('DB_PASSWORD', ''),
        'unix_socket' => env('DB_SOCKET', ''),
        'charset' => 'utf8mb4',
        'collation' => 'utf8mb4_unicode_ci',
        'prefix' => '',
        'prefix_indexes' => true,
        'strict' => true,
        'engine' => null
    ], (extension_loaded('pdo_mysql') && env('DB_WITH_SSLMODE')) ? [
        'sslmode' => env('DB_SSLMODE', 'prefer'),
        'options' => [
            PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
            PDO::MYSQL_ATTR_SSL_CERT => env('MYSQL_ATTR_SSL_CERT'),
            PDO::MYSQL_ATTR_SSL_KEY => env('MYSQL_ATTR_SSL_KEY'),
            PDO::MYSQL_ATTR_SSL_VERIFY_SERVER_CERT => env('MYSQL_ATTR_SSL_VERIFY_SERVER_CERT')
        ]
    ] : [ 'options' => [] ]),
],

然后将 env() 中的默认值移至 .env 文件(请注意，我删除了 DB_OPT_ 前缀):

DB_WITH_SSLMODE=true
MYSQL_ATTR_SSL_CA=C:\wamp64\bin\cloudsql\certificates\server-ca.pem
MYSQL_ATTR_SSL_CERT=C:\wamp64\bin\cloudsql\certificates\client-cert.pem
MYSQL_ATTR_SSL_KEY=C:\wamp64\bin\cloudsql\certificates\client-key.pem
MYSQL_ATTR_SSL_VERIFY_SERVER_CERT=false

因此，如果将 DB_WITH_SSLMODE 设置为 false，则会返回空数组，并且不会启用 ssl。

注意:我认为您指定的sslmode仅适用于 PostgreSQL 连接，但您的情况并非如此。