代码小优化

app/Http/Controllers/Api/LoginController.php

@@ -50,13 +50,12 @@ class LoginController extends Controller
 		}
 
 		// TODO 登录部分待优化
-		$userModel = new User();
-		$userModel->firstOrCreate([
+		$userModel = User::firstOrCreate([
 			'openid' => $res['openid'] ?? '',
 			'unionid' => $res['unionid'] ?? '',
 			'agent_id' => $agent->id,
 		], [
-			'nickname' => substr(session_create_id(), 0, 10),
+			'nickname' => uniqid(),
 			'avatar' => '/static/images/avatar.png'
 		]);