Route Model Binding on different database - laravel

Question

I have multiple databases and as a model considers default connection when invoked from a route model binding, it says table not found. How can i bind the model in a resource controller edit/update method as a part of Route Model binding to consider the current connection and not the default connection?
PS - I cannot declare $connection on the model because, i won't know which database it will be accessing at a said moment.

Answer 1

You can use a route middleware to set the database connection for particular routes. To do this you will need to set up your connections in your database config, and then add the middleware.
I use a similar setup in a multi-tenant application to manage system vs tenant database connections. Database config:
'connections' => [
'system' => [
'driver' => 'mysql',
'host' => env('DB_HOST', '127.0.0.1'),
'port' => env('DB_PORT', '3306'),
'database' => env('DB_DATABASE', 'lms'),
'username' => env('DB_USERNAME', 'lms'),
'password' => env('DB_PASSWORD', 'lms'),
'unix_socket' => env('DB_SOCKET', ''),
'charset' => 'utf8mb4',
'collation' => 'utf8mb4_unicode_ci',
'prefix' => '',
'strict' => true,
'engine' => null,
],
'tenant' => [
'driver' => 'mysql',
'host' => env('DB_HOST', '127.0.0.1'),
'port' => env('DB_PORT', '3306'),
'database' => '',
'username' => '',
'password' => '',
'unix_socket' => env('DB_SOCKET', ''),
'charset' => 'utf8mb4',
'collation' => 'utf8mb4_unicode_ci',
'prefix' => '',
'strict' => true,
'engine' => null,
],
],
The middleware in my example enforced the use of a database defined as tenant.
use Closure;
use Illuminate\Support\Facades\Config;
class EnforceTenancy
{
/**
* Handle an incoming request.
*
* #param \Illuminate\Http\Request $request
* #param \Closure $next
* #return mixed
*/
public function handle($request, Closure $next)
{
Config::set('database.default', 'tenant');
return $next($request);
}
}
You can then register the middleware in the kernel.php $routeMiddleware array
'tenancy.enforce' => \App\Http\Middleware\EnforceTenancy::class,
and then apply the middleware in your route file for any route that requires the second db.