basic storage package

storage/folder.go

@@ -0,0 +1,42 @@
+package storage
+
+import "fmt"
+
+type Folder struct {
+	Id int64
+	Title string
+	IsExpanded bool
+}
+
+func (s *Storage) CreateFolder(title string) *Folder {
+	expanded := true
+	result, err := s.db.Exec(`
+		insert into folders (title, is_expanded) values (?, ?)`,
+		title, expanded,
+	)
+	if err != nil {
+		fmt.Println(err)
+		return nil
+	}
+	id, idErr := result.LastInsertId()
+	if idErr != nil {
+		return nil
+	}
+	return &Folder{Id: id, Title: title, IsExpanded: expanded}
+}
+
+func (s *Storage) DeleteFolder(folderId int64) bool {
+	_, err1 := s.db.Exec(`update feeds set folder_id = null where folder_id = ?`, folderId)
+	_, err2 := s.db.Exec(`delete from folders where id = ?`, folderId)
+	return err1 == nil && err2 == nil
+}
+
+func (s *Storage) RenameFolder(folderId int64, newTitle string) bool {
+	_, err := s.db.Exec(`update folders set title = ? where id = ?`, newTitle, folderId)
+	return err == nil
+}
+
+func (s *Storage) ToggleFolderExpanded(folderId int64, isExpanded bool) bool {
+	_, err := s.db.Exec(`update folders set is_expanded = ? where id = ?`, isExpanded, folderId)
+	return err == nil
+}