fix campaign rules

internal/repository/campaign_repository.go

@@ -30,24 +30,7 @@ func NewCampaignRepository(db *gorm.DB) CampaignRepository {
 }
 
 func (r *campaignRepository) Create(ctx context.Context, campaign *entities.Campaign) error {
-	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		// Create campaign first
-		if err := tx.Create(campaign).Error; err != nil {
-			return fmt.Errorf("failed to create campaign: %w", err)
-		}
-
-		// Create campaign rules
-		if len(campaign.Rules) > 0 {
-			for i := range campaign.Rules {
-				campaign.Rules[i].CampaignID = campaign.ID
-			}
-			if err := tx.Create(&campaign.Rules).Error; err != nil {
-				return fmt.Errorf("failed to create campaign rules: %w", err)
-			}
-		}
-
-		return nil
-	})
+	return r.db.WithContext(ctx).Create(campaign).Error
 }
 
 func (r *campaignRepository) GetByID(ctx context.Context, id string) (*entities.Campaign, error) {
@@ -114,29 +97,7 @@ func (r *campaignRepository) List(ctx context.Context, req *entities.ListCampaig
 }
 
 func (r *campaignRepository) Update(ctx context.Context, campaign *entities.Campaign) error {
-	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		// Update campaign
-		if err := tx.Save(campaign).Error; err != nil {
-			return fmt.Errorf("failed to update campaign: %w", err)
-		}
-
-		// Delete existing rules
-		if err := tx.Where("campaign_id = ?", campaign.ID).Delete(&entities.CampaignRule{}).Error; err != nil {
-			return fmt.Errorf("failed to delete existing campaign rules: %w", err)
-		}
-
-		// Create new rules
-		if len(campaign.Rules) > 0 {
-			for i := range campaign.Rules {
-				campaign.Rules[i].CampaignID = campaign.ID
-			}
-			if err := tx.Create(&campaign.Rules).Error; err != nil {
-				return fmt.Errorf("failed to create campaign rules: %w", err)
-			}
-		}
-
-		return nil
-	})
+	return r.db.WithContext(ctx).Save(campaign).Error
 }
 
 func (r *campaignRepository) Delete(ctx context.Context, id string) error {