SqlServer Support

Added SqlSrv support (including permission control)

assets/config.php

@@ -61,6 +61,7 @@ return [
             'sqlite' => Stancl\Tenancy\TenantDatabaseManagers\SQLiteDatabaseManager::class,
             'mysql' => Stancl\Tenancy\TenantDatabaseManagers\MySQLDatabaseManager::class,
             'pgsql' => Stancl\Tenancy\TenantDatabaseManagers\PostgreSQLDatabaseManager::class,
+            'sqlsrv' => Stancl\Tenancy\TenantDatabaseManagers\SQLServerDatabaseManager::class,
 
         /**
          * Use this database manager for MySQL to have a DB user created for each tenant database.
@@ -68,7 +69,14 @@ return [
          */
             // 'mysql' => Stancl\Tenancy\TenantDatabaseManagers\PermissionControlledMySQLDatabaseManager::class,
 
-        /**
+            /**
+             * Use this database manager for SQlServer to have a DB user created for each tenant database.
+             * You can customize the grants given to these users by changing the $GrantPermissions property.
+             */
+
+             //'sqlsrv' => Stancl\Tenancy\TenantDatabaseManagers\PermissionControlledSQLServerDatabaseManager::class,
+
+            /**
          * Disable the pgsql manager above, and enable the one below if you
          * want to separate tenant DBs by schemas rather than databases.
          */

src/TenantDatabaseManagers/PermissionControlledSQLServerDatabaseManager.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Stancl\Tenancy\TenantDatabaseManagers;
+
+use Illuminate\Support\Facades\DB;
+use Stancl\Tenancy\Concerns\CreatesDatabaseUsers;
+use Stancl\Tenancy\Contracts\ManagesDatabaseUsers;
+use Stancl\Tenancy\DatabaseConfig;
+
+class PermissionControlledSQLServerDatabaseManager extends SqlServerDatabaseManager implements ManagesDatabaseUsers
+{
+    use CreatesDatabaseUsers;
+
+    public function createUser(DatabaseConfig $databaseConfig): bool
+    {
+        $central = DB::connection()->getDatabaseName();
+        $database = $databaseConfig->getName();
+        $username = $databaseConfig->getUsername();
+        $password = $databaseConfig->getPassword();
+
+        $GrantPermissions = "Use {$database}
+        CREATE LOGIN {$username} WITH PASSWORD = '{$password}'
+        CREATE USER {$username} FOR LOGIN {$username}
+        ALTER ROLE db_owner ADD MEMBER {$username}  Use {$central}";
+
+        return $this->database()->statement($GrantPermissions);
+    }
+
+    public function deleteUser(DatabaseConfig $databaseConfig): bool
+    {
+        $central = DB::connection()->getDatabaseName();
+        return $this->database()->statement("Use'{$databaseConfig->getName()}'
+        DROP USER IF EXISTS '{$databaseConfig->getUsername()}'
+        DROP LOGIN '{$databaseConfig->getUsername()}'
+        Use {$central}");
+    }
+    public function userExists(string $username): bool
+    {
+        return (bool) $this->database()->select("SELECT sp.name as username FROM sys.server_principals sp WHERE sp.name = '{$username}'");
+    }
+
+    public function makeConnectionConfig(array $baseConfig, string $databaseName): array
+    {
+        $baseConfig['database'] = $databaseName;
+
+        return $baseConfig;
+    }
+}

src/TenantDatabaseManagers/SqlServerDatabaseManager.php

@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Stancl\Tenancy\TenantDatabaseManagers;
+
+use Illuminate\Database\Connection;
+use Illuminate\Support\Facades\DB;
+use Stancl\Tenancy\Contracts\TenantDatabaseManager;
+use Stancl\Tenancy\Contracts\TenantWithDatabase;
+use Stancl\Tenancy\Exceptions\NoConnectionSetException;
+
+class SqlServerDatabaseManager implements TenantDatabaseManager
+{
+    /** @var string */
+    protected $connection;
+
+    protected function database(): Connection
+    {
+        if ($this->connection === null) {
+            throw new NoConnectionSetException(static::class);
+        }
+
+        return DB::connection($this->connection);
+    }
+
+    public function setConnection(string $connection): void
+    {
+        $this->connection = $connection;
+    }
+
+    public function createDatabase(TenantWithDatabase $tenant): bool
+    {
+        return $this->database()->statement("CREATE DATABASE \"{$tenant->database()->getName()}\"");
+    }
+
+    public function deleteDatabase(TenantWithDatabase $tenant): bool
+    {
+        return $this->database()->statement("DROP DATABASE \"{$tenant->database()->getName()}\"");
+    }
+
+    public function databaseExists(string $name): bool
+    {
+        return (bool) $this->database()->select("SELECT physical_database_name FROM sys.databases WHERE physical_database_name = '$name'");
+    }
+
+    public function makeConnectionConfig(array $baseConfig, string $databaseName): array
+    {
+        $baseConfig['database'] = $databaseName;
+
+        return $baseConfig;
+    }
+}