fix dashes on the name and better error handling (#336)

app/SSH/Services/Database/Postgresql.php

@@ -2,10 +2,26 @@
 
 namespace App\SSH\Services\Database;
 
+use App\Exceptions\SSHError;
+
 class Postgresql extends AbstractDatabase
 {
     protected function getScriptsDir(): string
     {
         return 'postgresql';
     }
+
+    /**
+     * @throws SSHError
+     */
+    public function create(string $name): void
+    {
+        $this->service->server->ssh()->exec(
+            $this->getScript($this->getScriptsDir().'/create.sh', [
+                'name' => $name,
+                'ssh_user' => $this->service->server->ssh_user,
+            ]),
+            'create-database'
+        );
+    }
 }