Fix resetting list, label & namespace colors

pkg/models/label.go

@@ -92,7 +92,14 @@ func (l *Label) Create(a web.Auth) (err error) {
 // @Failure 500 {object} models.Message "Internal error"
 // @Router /labels/{id} [put]
 func (l *Label) Update() (err error) {
-	_, err = x.ID(l.ID).Update(l)
+	_, err = x.
+		ID(l.ID).
+		Cols(
+			"title",
+			"description",
+			"hex_color",
+		).
+		Update(l)
 	if err != nil {
 		return
 	}

pkg/models/list.go

@@ -460,13 +460,11 @@ func CreateOrUpdateList(list *List) (err error) {
 			"title",
 			"is_archived",
 			"identifier",
+			"hex_color",
 		}
 		if list.Description != "" {
 			colsToUpdate = append(colsToUpdate, "description")
 		}
-		if list.HexColor != "" {
-			colsToUpdate = append(colsToUpdate, "hex_color")
-		}
 
 		_, err = x.
 			ID(list.ID).

pkg/models/namespace.go

@@ -448,13 +448,11 @@ func (n *Namespace) Update() (err error) {
 	colsToUpdate := []string{
 		"name",
 		"is_archived",
+		"hex_color",
 	}
 	if n.Description != "" {
 		colsToUpdate = append(colsToUpdate, "description")
 	}
-	if n.HexColor != "" {
-		colsToUpdate = append(colsToUpdate, "hex_color")
-	}
 
 	// Do the actual update
 	_, err = x.