feat: working e2e solution

backend/models/events.go

@@ -46,6 +46,10 @@ func (m EventModel) Save(ctx context.Context, events []model.Events) (model.Even
 }
 
 func (m EventModel) SaveToImage(ctx context.Context, imageId uuid.UUID, events []model.Events) error {
+	if len(events) == 0 {
+		return nil
+	}
+
 	event, err := m.Save(ctx, events)
 
 	if err != nil {

backend/models/links.go

@@ -13,6 +13,10 @@ type LinkModel struct {
 }
 
 func (m LinkModel) Save(ctx context.Context, imageId uuid.UUID, links []string) error {
+	if len(links) == 0 {
+		return nil
+	}
+
 	stmt := ImageLinks.INSERT(ImageLinks.ImageID, ImageLinks.Link)
 
 	for _, link := range links {

backend/models/locations.go

@@ -58,6 +58,10 @@ func (m LocationModel) Save(ctx context.Context, locations []model.Locations) (m
 }
 
 func (m LocationModel) SaveToImage(ctx context.Context, imageId uuid.UUID, locations []model.Locations) error {
+	if len(locations) == 0 {
+		return nil
+	}
+
 	location, err := m.Save(ctx, locations)
 
 	if err != nil {

backend/models/tags.go

@@ -28,6 +28,10 @@ type TagModel struct {
 // |           --         --
 // |       ----      IQ     ----
 func (m TagModel) getNonExistantTags(ctx context.Context, userId uuid.UUID, tags []string) ([]string, error) {
+	if len(tags) == 0 {
+		return tags, nil
+	}
+
 	values := ""
 	counter := 1
 	// big big SQL injection problem here?
@@ -107,6 +111,10 @@ func (m TagModel) List(ctx context.Context, userId uuid.UUID) ([]model.UserTags,
 }
 
 func (m TagModel) SaveToImage(ctx context.Context, imageId uuid.UUID, tags []string) error {
+	if len(tags) == 0 {
+		return nil
+	}
+
 	userId, err := getUserIdFromImage(ctx, m.dbPool, imageId)
 	if err != nil {
 		return err

backend/models/text.go

@@ -13,6 +13,10 @@ type TextModel struct {
 }
 
 func (m TextModel) Save(ctx context.Context, imageId uuid.UUID, texts []string) error {
+	if len(texts) == 0 {
+		return nil
+	}
+
 	saveImageTextStmt := ImageText.INSERT(ImageText.ImageID, ImageText.ImageText)
 
 	for _, t := range texts {