fix(repositories): correctly handle slices in squirrel update builder

apps/api-gql/internal/services/commands_with_groups_and_responses/update.go

@@ -144,29 +144,31 @@ func (c *Service) Update(
 
 			newCmd.Command = newDbCmd
 
-			for _, r := range cmd.Responses {
-				err := c.responsesRepository.Delete(trCtx, r.ID)
-				if err != nil {
-					return err
+			if input.Responses != nil {
+				for _, r := range cmd.Responses {
+					err := c.responsesRepository.Delete(trCtx, r.ID)
+					if err != nil {
+						return err
+					}
 				}
-			}
 
-			newCmd.Responses = make([]responsemodel.Response, 0, len(cmd.Responses))
-			for _, r := range input.Responses {
-				newResponse, err := c.responsesRepository.Create(
-					trCtx,
-					commands_response.CreateInput{
-						CommandID:         newDbCmd.ID,
-						Text:              r.Text,
-						Order:             r.Order,
-						TwitchCategoryIDs: r.TwitchCategoryIDs,
-					},
-				)
-				if err != nil {
-					return err
+				newCmd.Responses = make([]responsemodel.Response, 0, len(cmd.Responses))
+				for _, r := range input.Responses {
+					newResponse, err := c.responsesRepository.Create(
+						trCtx,
+						commands_response.CreateInput{
+							CommandID:         newDbCmd.ID,
+							Text:              r.Text,
+							Order:             r.Order,
+							TwitchCategoryIDs: r.TwitchCategoryIDs,
+						},
+					)
+					if err != nil {
+						return err
+					}
+
+					newCmd.Responses = append(newCmd.Responses, newResponse)
 				}
-
-				newCmd.Responses = append(newCmd.Responses, newResponse)
 			}
 
 			return nil

libs/repositories/squirrel_patch_builder.go

@@ -21,7 +21,15 @@ func SquirrelApplyPatch(
 
 // isNil checks if an interface value is nil or contains a nil dynamic value
 func isNil(value interface{}) bool {
-	// Use reflection to detect nil dynamic value
+	// Use reflection to detect nil dynamic value or nil slice
 	v := reflect.ValueOf(value)
-	return !v.IsValid() || (v.Kind() == reflect.Ptr && v.IsNil())
+	if !v.IsValid() {
+		return true
+	}
+	switch v.Kind() {
+	case reflect.Ptr, reflect.Interface, reflect.Slice, reflect.Map, reflect.Chan, reflect.Func:
+		return v.IsNil()
+	default:
+		return false
+	}
 }