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feed.go
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feed.go
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package storage
import (
"database/sql"
"log"
)
type Feed struct {
Id int64 `json:"id"`
FolderId *int64 `json:"folder_id"`
Title string `json:"title"`
Description string `json:"description"`
Link string `json:"link"`
FeedLink string `json:"feed_link"`
Icon *[]byte `json:"icon,omitempty"`
HasIcon bool `json:"has_icon"`
}
func (s *Storage) CreateFeed(title, description, link, feedLink string, folderId *int64) *Feed {
if title == "" {
title = feedLink
}
result, err := s.db.Exec(`
insert into feeds (title, description, link, feed_link, folder_id)
values (?, ?, ?, ?, ?)
on conflict (feed_link) do update set folder_id=?`,
title, description, link, feedLink, folderId,
folderId,
)
if err != nil {
return nil
}
id, idErr := result.LastInsertId()
if idErr != nil {
return nil
}
return &Feed{
Id: id,
Title: title,
Description: description,
Link: link,
FeedLink: feedLink,
FolderId: folderId,
}
}
func (s *Storage) DeleteFeed(feedId int64) bool {
result, err := s.db.Exec(`delete from feeds where id = ?`, feedId)
if err != nil {
log.Print(err)
return false
}
nrows, err := result.RowsAffected()
if err != nil {
if err != sql.ErrNoRows {
log.Print(err)
}
return false
}
return nrows == 1
}
func (s *Storage) RenameFeed(feedId int64, newTitle string) bool {
_, err := s.db.Exec(`update feeds set title = ? where id = ?`, newTitle, feedId)
return err == nil
}
func (s *Storage) UpdateFeedFolder(feedId int64, newFolderId *int64) bool {
_, err := s.db.Exec(`update feeds set folder_id = ? where id = ?`, newFolderId, feedId)
return err == nil
}
func (s *Storage) UpdateFeedIcon(feedId int64, icon *[]byte) bool {
_, err := s.db.Exec(`update feeds set icon = ? where id = ?`, icon, feedId)
return err == nil
}
func (s *Storage) ListFeeds() []Feed {
result := make([]Feed, 0)
rows, err := s.db.Query(`
select id, folder_id, title, description, link, feed_link,
ifnull(length(icon), 0) > 0 as has_icon
from feeds
order by title collate nocase
`)
if err != nil {
log.Print(err)
return result
}
for rows.Next() {
var f Feed
err = rows.Scan(
&f.Id,
&f.FolderId,
&f.Title,
&f.Description,
&f.Link,
&f.FeedLink,
&f.HasIcon,
)
if err != nil {
log.Print(err)
return result
}
result = append(result, f)
}
return result
}
func (s *Storage) ListFeedsMissingIcons() []Feed {
result := make([]Feed, 0)
rows, err := s.db.Query(`
select id, folder_id, title, description, link, feed_link
from feeds
where icon is null
`)
if err != nil {
log.Print(err)
return result
}
for rows.Next() {
var f Feed
err = rows.Scan(
&f.Id,
&f.FolderId,
&f.Title,
&f.Description,
&f.Link,
&f.FeedLink,
)
if err != nil {
log.Print(err)
return result
}
result = append(result, f)
}
return result
}
func (s *Storage) GetFeed(id int64) *Feed {
var f Feed
err := s.db.QueryRow(`
select
id, folder_id, title, link, feed_link,
icon, ifnull(icon, '') != '' as has_icon
from feeds where id = ?
`, id).Scan(
&f.Id, &f.FolderId, &f.Title, &f.Link, &f.FeedLink,
&f.Icon, &f.HasIcon,
)
if err != nil {
if err != sql.ErrNoRows {
log.Print(err)
}
return nil
}
return &f
}
func (s *Storage) ResetFeedErrors() {
if _, err := s.db.Exec(`delete from feed_errors`); err != nil {
log.Print(err)
}
}
func (s *Storage) SetFeedError(feedID int64, lastError error) {
_, err := s.db.Exec(`
insert into feed_errors (feed_id, error)
values (?, ?)
on conflict (feed_id) do update set error = excluded.error`,
feedID, lastError.Error(),
)
if err != nil {
log.Print(err)
}
}
func (s *Storage) GetFeedErrors() map[int64]string {
errors := make(map[int64]string)
rows, err := s.db.Query(`select feed_id, error from feed_errors`)
if err != nil {
log.Print(err)
return errors
}
for rows.Next() {
var id int64
var error string
if err = rows.Scan(&id, &error); err != nil {
log.Print(err)
}
errors[id] = error
}
return errors
}
func (s *Storage) SetFeedSize(feedId int64, size int) {
_, err := s.db.Exec(`
insert into feed_sizes (feed_id, size)
values (?, ?)
on conflict (feed_id) do update set size = excluded.size`,
feedId, size,
)
if err != nil {
log.Print(err)
}
}