运行数据库迁移时使用特定的数据库连接

Question

我有以下数据库迁移，我使用它进行测试：

use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facade\App;
use Illuminate\Database\Migrations\Migration;

class TestWebsitedbMigration extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        if(App::environment() == "testing")
        {
            ini_set('memory_limit', '-1');
            DB::unprepared( file_get_contents( "resources/database_dumps/my_website.sql" ) );
        }
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        if(App::environment() == "testing")
        {
            // Burn it down!!!!
            // But needs some im plementation first
        }
    }
}

整个想法是为了在我运行phpunit集成测试时使用迁移来创建和创建数据库。因为之前没有迁移脚本，所以我在resources/database_dumps/my_website.sql中创建了一个仅模式的数据库转储。

我使用该转储将模式加载到我的数据库中。但是我的应用程序有两个数据库连接：

return [

    'default'     => env('DB_CONNECTION', 'brock_lesnar'),
    'connections' => [
        'seth_rollins' => [
            'driver'   => 'pgsql',
            'host'     => env('DB_API_HOST', '192.168.10.70'),
            'port'     => env('DB_API_PORT', '5432'),
            'database' => env('DB_API_DATABASE', 'etable_api'),
            'username' => env('DB_API_USERNAME', ''),
            'password' => env('DB_API_PASSWORD', ''),
            'charset'  => 'utf8',
            'prefix'   => '',
            'schema'   => 'public',
            'sslmode'  => 'prefer',
        ],

        'brock_lesnar' => [
            'driver'   => 'pgsql',
            'host' => env('BROCK_DB_HOST', '192.168.10.70'),
            'port'     => env('BROCK_DB_PORT', '5432'),
            'database' => env('BROCK_DB_DATABASE', 'etable'),
            'username' => env('BROCK_DB_USERNAME', ''),
            'password' => env('BROCK_DB_PASSWORD', ''),
            'charset'  => 'utf8',
            'prefix'   => '',
            'schema'   => 'public',
            'sslmode'  => 'prefer',
        ],
    ],

    'migrations' => 'migrations',

    /*
    |--------------------------------------------------------------------------
    | Redis Databases
    |--------------------------------------------------------------------------
    |
    | Redis is an open source, fast, and advanced key-value store that also
    | provides a richer set of commands than a typical key-value systems
    | such as APC or Memcached. Laravel makes it easy to dig right in.
    |
     */

    'redis' => [
        'client'  => 'predis',
        'default' => [
            'host'     => env('REDIS_HOST', '127.0.0.1'),
            'password' => env('REDIS_PASSWORD', NULL),
            'port'     => env('REDIS_PORT', 6379),
            'database' => 0,
        ],
    ],
];

我想将此迁移运行到seth_rollins数据库连接中。你知道怎么做吗？如您所见，我的默认数据库是brock_lestnar数据库。

Answer 1

假设你有这个玩具迁移：

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class MakeDummyTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    { 
        $schema=Schema::connection('seth_rollins');
        $schema->create('dummy_table', function (Blueprint $table) {
                $table->increments('id');
                $table->string('lover')->nullable()->default('Becky Lynch')
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {     
       // Destroy it here
    }
}

您可以通过Schema::connection('seth_rollins');指定要运行迁移的连接。此外，您还可以在运行测试的位置上指定一个文件夹。假设你创建了文件夹，然后运行：

  php artisan make:migration --path './database/migrations/seth_rollins' ^migration_name^ --table=^table_name^ 

您可以运行迁移，如此asnwer所示。