Laravel 动态更改连接

Question

如何更改 laravel 的连接形式控制器，但连接信息存储在数据库中，如数据库管理器，我的示例：

我的数据库中有一个数据库信息：

id, driver, database_name, username, password, host

所以在我的控制器上调用：

$connection = Database::find( 1 );
$users = new Users();
$users->setConnection( [
    'driver' => $connection->driver,
    'host' => $connection->host,
    'username' => $connection->username,
    'password' => $connection->password
] );
$users = $users->get();

Answer 1

我这边去找个帮手。让我们在 app/Helpers/DatabaseConnection.php 中创建一个。

namespace App\Helpers;
use Config;
use DB;

class DatabaseConnection
{
    public static function setConnection($params)
    {
        config(['database.connections.onthefly' => [
            'driver' => $params->driver,
            'host' => $params->host,
            'username' => $params->username,
            'password' => $params->password
        ]]);

        return DB::connection('onthefly');
    }
}

现在我们在控制器的某个地方尝试

use App\Helpers\DatabaseConnection;
... 

$params = Database::find( 1 );
$connection = DatabaseConnection::setConnection($params);
$users = $connection->select(...);

注：未测试。我希望它有用或只是指导你

更多信息：

使用多数据库：https://laravel.com/docs/5.3/database#read-and-write-connections
即时设置配置：https://laravel.com/docs/5.3/configuration#accessing-configuration-values

Answer 2

谢谢，EddyTheDove，我正在使用你的解决方案，这很棒 :) 只是想知道如何 select table 我把这个命名

namespace App\Helpers;
use Config;
use DB;

class DatabaseConnection
{
    public static function setConnection($params)
    {
        config(['database.connections.onthefly' => [
            'driver' => $params->driver,
            'host' => $params->host,
            'username' => $params->username,
            'password' => $params->password
        ]]);

        return DB::connection('onthefly');
    }
}

现在我们在控制器的某个地方尝试

使用App\Helpers\DatabaseConnection； ...

    $params['connection_name'] = 'onthefly';
    $params['dbname'] ='dbname';
    $params['driver'] = 'mysql';
    $params['host'] = 'localhost';
    $params['username'] = 'root';
    $params['password'] = '';
    $params['port'] = 3306;

$connection = DatabaseConnection::setConnection($params);
$getTableData = $connection->table('table_name')->where("column_name",'=','matchCondition')->get();

Laravel 动态更改连接

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php

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laravel