enforce at least 1 field exists one update functions

backend/src/errors/common.go

@@ -3,6 +3,10 @@ package errors
 import "github.com/gofiber/fiber/v2"
 
 var (
+	FailedToValidateAtLeastOneField = Error{
+		StatusCode: fiber.StatusBadRequest,
+		Message:    "failed to validate at least one field",
+	}
 	FailedToParseRequestBody = Error{
 		StatusCode: fiber.StatusBadRequest,
 		Message:    "failed to parse request body",

backend/src/models/category.go

@@ -9,4 +9,4 @@ type Category struct {
 
 type CategoryRequestBody struct {
 	Name string `json:"name" validate:"required,max=255"`
-}
+}

backend/src/services/club.go

@@ -71,6 +71,10 @@ func (c *ClubService) UpdateClub(id string, clubBody models.UpdateClubRequestBod
 		return nil, &errors.FailedToValidateClub
 	}
 
+	if err := utilities.AtLeastOne(clubBody, models.UpdateClubRequestBody{}); err != nil {
+		return nil, err
+	}
+
 	club, err := utilities.MapRequestToModel(clubBody, &models.Club{})
 	if err != nil {
 		return nil, &errors.FailedToMapRequestToModel

backend/src/services/event.go

@@ -127,6 +127,10 @@ func (e *EventService) UpdateEvent(id string, eventBody models.UpdateEventReques
 		return nil, &errors.FailedToValidateEvent
 	}
 
+	if err := utilities.AtLeastOne(eventBody, models.UpdateEventRequestBody{}); err != nil {
+		return nil, err
+	}
+
 	event, err := utilities.MapRequestToModel(eventBody, &models.UpdateEventRequestBody{})
 	if err != nil {
 		return nil, &errors.FailedToMapRequestToModel

backend/src/services/tag.go

@@ -76,6 +76,11 @@ func (t *TagService) UpdateTag(tagID string, tagBody models.UpdateTagRequestBody
 		return nil, &errors.FailedToValidateTag
 	}
 
+	if err := utilities.AtLeastOne(tagBody, models.UpdateTagRequestBody{}); err != nil {
+		return nil, err
+	}
+
+
 	tag, err := utilities.MapRequestToModel(tagBody, &models.Tag{})
 	if err != nil {
 		return nil, &errors.FailedToMapRequestToModel

backend/src/services/user.go

@@ -86,6 +86,10 @@ func (u *UserService) UpdateUser(id string, userBody models.UpdateUserRequestBod
 		return nil, &errors.FailedToValidateUser
 	}
 
+	if err := utilities.AtLeastOne(userBody, models.UpdateUserRequestBody{}); err != nil {
+		return nil, err
+	}
+
 	user, err := utilities.MapRequestToModel(userBody, &models.User{})
 	if err != nil {
 		return nil, &errors.FailedToMapRequestToModel

backend/src/utilities/validator.go

@@ -1,6 +1,7 @@
 package utilities
 
 import (
+	"reflect"
 	"regexp"
 	"strconv"
 
@@ -41,6 +42,14 @@ func RegisterCustomValidators() (*validator.Validate, error) {
 	return validate, nil
 }
 
+func AtLeastOne[Model any](body Model, model Model) *errors.Error {
+	if reflect.DeepEqual(body, model) {
+		return &errors.FailedToValidateAtLeastOneField
+	}
+
+	return nil
+}
+
 func validateEmail(fl validator.FieldLevel) bool {
 	email, err := emailaddress.Parse(fl.Field().String())
 	if err != nil {