fix delete function

dbHandler.go

@@ -218,42 +218,22 @@ func (dH *DBHandler) UpdateValuesByKey(model any, key string, value any) error {
 	return dH.db.Model(lookUpModel).Updates(model).Error
 }
 
-// deleteById
-//
-// Description:
-//
-//	Deletes records by their ID(s).
-//
-// Behavior:
-//   - If the first ID == 0, all records in the table are deleted.
-//   - Otherwise, deletes the provided IDs.
-//
-// Parameters:
-//   - model: Model struct type representing the table.
-//   - id:    Variadic list of IDs to delete.
-//
-// Returns:
-//   - error: Any deletion error.
 func (dH *DBHandler) DeleteById(model any, ids ...uint) error {
 	if len(ids) == 0 {
 		return fmt.Errorf("no IDs provided")
 	}
 
-	if ids[0] == 0 {
-		dH.logger.Debug("deleteById", "delete all")
-		return dH.db.Where("1 = 1").Delete(model).Error
+	if len(ids) == 1 && ids[0] == 0 {
+		dH.logger.Debug("deleteById", "delete ALL records!")
+		return dH.db.Session(&gorm.Session{AllowGlobalUpdate: true}).
+			Delete(model).Error
 	}
 
 	dH.logger.Debug("deleteById", "delete ids "+fmt.Sprint(ids))
-	if !dH.Exists(model, "id", ids, false) {
-		return errors.New("no matching id(s) found")
-	}
 
-	// Always use Model() to avoid GORM’s “limit 1” safeguard
-	if err := dH.db.Model(model).Where("id IN ?", ids).Delete(nil).Error; err != nil {
+	if err := dH.db.Delete(model, ids).Error; err != nil {
 		return fmt.Errorf("delete failed: %w", err)
 	}
-
 	return nil
 }
 
@@ -314,15 +294,10 @@ func (dH *DBHandler) Exists(model any, key string, value any, likeSearch bool) (
 
 	dH.logger.Debug("exists", "checking existence for key "+query+" value "+fmt.Sprint(args))
 
-	t := reflect.TypeOf(model)
-	if t.Kind() == reflect.Ptr {
-		t = t.Elem()
-	}
-
 	tx := dH.db.Where(query, args).Find(model)
 
 	if tx.Error != nil {
-		dH.logger.Error("Exists", fmt.Sprintf("query failed: %w", tx.Error))
+		dH.logger.Error("Exists", fmt.Sprintf("query failed: %v", tx.Error))
 		return false
 	}
 	return tx.RowsAffected > 0