fix sql, counter show 0

server/index.go

@@ -91,6 +91,10 @@ func handleIndex(w http.ResponseWriter, r *http.Request) {
 }
 
 func splitInt(n int) []int {
+	if n == 0 {
+		return []int{0}
+	}
+
 	slc := []int{}
 	for n > 0 {
 		slc = append(slc, n%10)

server/stats.go

@@ -341,7 +341,7 @@ func handleStats(w http.ResponseWriter, r *http.Request) {
 	var saved int
 	err = db.QueryRow(r.Context(),
 		`SELECT (SUM(old_size) - COALESCE(SUM(size), 0)) AS saved
-		FROM files WHERE ($1 = -1 OR files.library_id = $1) AND status = $2 AND old_size NOT NULL`, id, constants.FILE_STATUS_EXISTS).Scan(&saved)
+		FROM files WHERE ($1 = -1 OR files.library_id = $1) AND status = $2 AND old_size IS NOT NULL`, id, constants.FILE_STATUS_EXISTS).Scan(&saved)
 	if err != nil {
 		saved = 0
 	}