From dd0984f9e268a7b7e49659bfec5144b2c9ad7b74 Mon Sep 17 00:00:00 2001
From: HB9HIL <fabian.berg@hb9hil.org>
Date: Wed, 24 Jul 2024 14:20:52 +0200
Subject: [PATCH] add check if database is empty

---
 install/includes/core/database_class.php | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/install/includes/core/database_class.php b/install/includes/core/database_class.php
index 7334de9d1..22d94430d 100644
--- a/install/includes/core/database_class.php
+++ b/install/includes/core/database_class.php
@@ -50,22 +50,28 @@ class Database {
 		try {
 			$timeout = 5;  /* five seconds for timeout */
 			$link = mysqli_init();
-
+		
 			$link->options(MYSQLI_OPT_CONNECT_TIMEOUT, $timeout);
-
+		
 			$link->real_connect($data['db_hostname'], $data['db_username'], $data['db_password'], $data['db_name']);
-
+		
 			if ($link->connect_error) {
-				throw new Exception('Connection Error: ' . $link->connect_error);
+				throw new Exception(__("Connection Error: ") . $link->connect_error);
 			}
-
+		
+			$result = $link->query("SHOW TABLES");
+		
+			if ($result->num_rows > 0) {
+				throw new Exception(__("Database is not empty."));
+			}
+		
 			$mysql_version = $link->server_info;
-
+		
 			$link->close();
-
+		
 			return $mysql_version;
 		} catch (Exception $e) {
-			return 'Error: ' . $e->getMessage();
+			return __("Error: ") . $e->getMessage();
 		}
 	}
 }