remove feed key

Former-commit-id: b047d25d19c2861a1283799dd9b38aacebed7638

rss/item.go

@@ -21,16 +21,14 @@ type Item struct {
 	Link    string
 	Content string
 	TS      time.Time
-	FeedKey string
 }
 
-func newItem(i *gofeed.Item, contentFilter, feedKey string) (*Item, error) {
+func newItem(i *gofeed.Item, contentFilter string) (*Item, error) {
 	item := &Item{
 		Title:   i.Title,
 		Link:    i.Link,
 		Content: i.Content,
 		TS:      latestTSPtr(i.UpdatedParsed, i.PublishedParsed),
-		FeedKey: feedKey,
 	}
 
 	if item.Content == "" {
@@ -76,15 +74,15 @@ func (i *Item) save() error {
 	if err != nil {
 		return err
 	}
-	return db.Set(i.Link, b, nsItems, i.FeedKey)
+	return db.Set(i.Link, b, nsItems)
 }
 
 func (i *Item) load() error {
-	if i.Link == "" || i.FeedKey == "" {
+	if i.Link == "" {
 		return errors.New("cannot load nil item")
 	}
 	db := config.Values().DB
-	b, err := db.Get(i.Link, nsItems, i.FeedKey)
+	b, err := db.Get(i.Link, nsItems)
 	if err != nil {
 		return err
 	}