Seeding tenant database in Laravel 5 - php

Question

I am working on building a system using a main database and multiple tenant databases in laravel 5. I have a database migration and seed for the main database no problem, using php artisan migrate:refresh --seed.
Tenants then get their own database upon registration. I need to run a migration and seed on the tenants database.
The tenant migration files are stored in a separate folder. The migration runs (unfortunately on the main database) with the following command
\Artisan::call('migrate', [
'--path' => "database/migrations_system"
);
However I need the migration to occur on the tenant database, say DB_1.
I read the following should work
\Artisan::call('migrate', [
'--path' => "database/migrations_system",
'--database' => 'db_1'
]);
However I end up with an error
InvalidArgumentException in DatabaseManager.php line 238:
Database [db_1] not configured.
Stuck.... How can I specify the migration to run on a specific database?
UPDATE:
I have found that changing config/database.php and adding db_1 gets me past this error....
'db_1' => [
'driver' => 'mysql',
'host' => env('DB_HOST', 'localhost'),
'database' => 'db_1',
'username' => env('DB_USERNAME', 'root'),
'password' => env('DB_PASSWORD', 'pass'),
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
'strict' => false,
'port' => '3306'
],
However this connection is unknown and needs to be done on the fly, which I am also stuck on how to accomplish....
UPDATE Again and working solution.... Modify the config on the fly...
$connections = \Config::get('database.connections');
$tenant_database = 'db_1'; //assign from your main database
$tenant_connection = [
'driver' => 'mysql',
'host' => env('DB_HOST', 'localhost'),
'database' => $tenant_database ,
'username' => env('DB_USERNAME'),
'password' => env('DB_PASSWORD'),
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
'strict' => false,
'port' => '3306'
];
$connections['tenant'] = $tenant_connection;
\Config::set('database.connections', $connections);
\Artisan::call('migrate', [
'--path' => "database/migrations_system",
'--database' => 'tenant'
]);
So it looks like I have answered my own question, however maybe some can comment on this procedure.

Answer 1

I'll put my own solution down....
1) Create the database name
For example I name the new database db_1 where 1 represents the ID of the system in the main database. I have considered storing a unique scrambled name in the main database. In the end that seemed like overkill.
2) Create the connection - for this I use the exact same name as the new database.
public function createConnection()
{
$connections = \Config::get('database.connections');
if(!isset($connections[$this->getSystemName()]))
{
$tenant_connection = [
'driver' => 'mysql',
'host' => env('DB_HOST', 'localhost'),
'database' => $this->getSystemName(),
'username' => env('DB_USERNAME'),
'password' => env('DB_PASSWORD'),
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
'strict' => false,
'port' => '3306'
];
$connections[$this->getSystemName()] = $tenant_connection;
\Config::set('database.connections', $connections);
//dd(\Config::get('database.connections'));
}
}
3) Create the database, which you do using your main connection
$sql = "CREATE DATABASE " . $this->tenant_name;
DB::connection('main_db')->statement($sql);
4)run the migration
$r = \Artisan::call('migrate', [
'--path' => "database/migrations_tenant",
'--database' => $this->tenant_name
]);
5) finally you can seed test data or load some default data. Access the connection like
DB::connection($this->system_name)->table($table)->insert($csv);