1 files changed, 18 insertions, 0 deletions
diff --git a/src/main/java/org/openslx/imagemaster/db/mappers/DbUser.java b/src/main/java/org/openslx/imagemaster/db/mappers/DbUser.java
index ed55d8a..349b023 100644
--- a/src/main/java/org/openslx/imagemaster/db/mappers/DbUser.java
+++ b/src/main/java/org/openslx/imagemaster/db/mappers/DbUser.java
@@ -105,4 +105,22 @@ public class DbUser
 		return new ArrayList<>( 0 );
 	}
 
+	public static boolean exists( UserInfo user )
+	{
+		if ( user == null )
+			return false;
+		return exists( user.userId );
+	}
+
+	private static boolean exists( String userId )
+	{
+		if ( userId == null )
+			return false;
+		try {
+			return forLogin( userId ) != null;
+		} catch ( SQLException e ) {
+			return false;
+		}
+	}
+
 }