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miniflux/storage/entry.go
2018-08-24 21:56:39 -07:00

278 lines
7.7 KiB
Go

// Copyright 2017 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package storage // import "miniflux.app/storage"
import (
"errors"
"fmt"
"time"
"miniflux.app/logger"
"miniflux.app/model"
"miniflux.app/timer"
"github.com/lib/pq"
)
// CountUnreadEntries returns the number of unread entries.
func (s *Storage) CountUnreadEntries(userID int64) int {
builder := s.NewEntryQueryBuilder(userID)
builder.WithStatus(model.EntryStatusUnread)
n, err := builder.CountEntries()
if err != nil {
logger.Error("unable to count unread entries: %v", err)
return 0
}
return n
}
// NewEntryQueryBuilder returns a new EntryQueryBuilder
func (s *Storage) NewEntryQueryBuilder(userID int64) *EntryQueryBuilder {
return NewEntryQueryBuilder(s, userID)
}
// UpdateEntryContent updates entry content.
func (s *Storage) UpdateEntryContent(entry *model.Entry) error {
tx, err := s.db.Begin()
if err != nil {
return err
}
_, err = tx.Exec(`UPDATE entries SET content=$1 WHERE id=$2 AND user_id=$3`, entry.Content, entry.ID, entry.UserID)
if err != nil {
tx.Rollback()
return err
}
query := `
UPDATE entries
SET document_vectors = to_tsvector(title || ' ' || coalesce(content, ''))
WHERE id=$1 AND user_id=$2
`
_, err = tx.Exec(query, entry.ID, entry.UserID)
if err != nil {
tx.Rollback()
return err
}
return tx.Commit()
}
// createEntry add a new entry.
func (s *Storage) createEntry(entry *model.Entry) error {
query := `
INSERT INTO entries
(title, hash, url, comments_url, published_at, content, author, user_id, feed_id, document_vectors)
VALUES
($1, $2, $3, $4, $5, $6, $7, $8, $9, to_tsvector($1 || ' ' || coalesce($6, '')))
RETURNING id, status
`
err := s.db.QueryRow(
query,
entry.Title,
entry.Hash,
entry.URL,
entry.CommentsURL,
entry.Date,
entry.Content,
entry.Author,
entry.UserID,
entry.FeedID,
).Scan(&entry.ID, &entry.Status)
if err != nil {
return fmt.Errorf("unable to create entry: %v", err)
}
for i := 0; i < len(entry.Enclosures); i++ {
entry.Enclosures[i].EntryID = entry.ID
entry.Enclosures[i].UserID = entry.UserID
err := s.CreateEnclosure(entry.Enclosures[i])
if err != nil {
return err
}
}
return nil
}
// updateEntry updates an entry when a feed is refreshed.
// Note: we do not update the published date because some feeds do not contains any date,
// it default to time.Now() which could change the order of items on the history page.
func (s *Storage) updateEntry(entry *model.Entry) error {
query := `
UPDATE entries SET
title=$1, url=$2, comments_url=$3, content=$4, author=$5,
document_vectors=to_tsvector($1 || ' ' || coalesce($4, ''))
WHERE user_id=$6 AND feed_id=$7 AND hash=$8
RETURNING id
`
err := s.db.QueryRow(
query,
entry.Title,
entry.URL,
entry.CommentsURL,
entry.Content,
entry.Author,
entry.UserID,
entry.FeedID,
entry.Hash,
).Scan(&entry.ID)
if err != nil {
return err
}
for _, enclosure := range entry.Enclosures {
enclosure.UserID = entry.UserID
enclosure.EntryID = entry.ID
}
return s.UpdateEnclosures(entry.Enclosures)
}
// entryExists checks if an entry already exists based on its hash when refreshing a feed.
func (s *Storage) entryExists(entry *model.Entry) bool {
var result int
query := `SELECT count(*) as c FROM entries WHERE user_id=$1 AND feed_id=$2 AND hash=$3`
s.db.QueryRow(query, entry.UserID, entry.FeedID, entry.Hash).Scan(&result)
return result >= 1
}
// cleanupEntries deletes from the database entries marked as "removed" and not visible anymore in the feed.
func (s *Storage) cleanupEntries(feedID int64, entryHashes []string) error {
query := `
DELETE FROM entries
WHERE feed_id=$1 AND
id IN (SELECT id FROM entries WHERE feed_id=$2 AND status=$3 AND NOT (hash=ANY($4)))
`
if _, err := s.db.Exec(query, feedID, feedID, model.EntryStatusRemoved, pq.Array(entryHashes)); err != nil {
return fmt.Errorf("unable to cleanup entries: %v", err)
}
return nil
}
// UpdateEntries updates a list of entries while refreshing a feed.
func (s *Storage) UpdateEntries(userID, feedID int64, entries model.Entries, updateExistingEntries bool) (err error) {
var entryHashes []string
for _, entry := range entries {
entry.UserID = userID
entry.FeedID = feedID
if s.entryExists(entry) {
if updateExistingEntries {
err = s.updateEntry(entry)
}
} else {
err = s.createEntry(entry)
}
if err != nil {
return err
}
entryHashes = append(entryHashes, entry.Hash)
}
if err := s.cleanupEntries(feedID, entryHashes); err != nil {
logger.Error("[Storage:CleanupEntries] %v", err)
}
return nil
}
// ArchiveEntries changes the status of read items to "removed" after 60 days.
func (s *Storage) ArchiveEntries() error {
query := `
UPDATE entries SET status='removed'
WHERE id=ANY(SELECT id FROM entries WHERE status='read' AND starred is false AND published_at < now () - '60 days'::interval LIMIT 500)
`
if _, err := s.db.Exec(query); err != nil {
return fmt.Errorf("unable to archive read entries: %v", err)
}
return nil
}
// SetEntriesStatus update the status of the given list of entries.
func (s *Storage) SetEntriesStatus(userID int64, entryIDs []int64, status string) error {
defer timer.ExecutionTime(time.Now(), fmt.Sprintf("[Storage:SetEntriesStatus] userID=%d, entryIDs=%v, status=%s", userID, entryIDs, status))
query := `UPDATE entries SET status=$1 WHERE user_id=$2 AND id=ANY($3)`
result, err := s.db.Exec(query, status, userID, pq.Array(entryIDs))
if err != nil {
return fmt.Errorf("unable to update entries status: %v", err)
}
count, err := result.RowsAffected()
if err != nil {
return fmt.Errorf("unable to update these entries: %v", err)
}
if count == 0 {
return errors.New("nothing has been updated")
}
return nil
}
// ToggleBookmark toggles entry bookmark value.
func (s *Storage) ToggleBookmark(userID int64, entryID int64) error {
defer timer.ExecutionTime(time.Now(), fmt.Sprintf("[Storage:ToggleBookmark] userID=%d, entryID=%d", userID, entryID))
query := `UPDATE entries SET starred = NOT starred WHERE user_id=$1 AND id=$2`
result, err := s.db.Exec(query, userID, entryID)
if err != nil {
return fmt.Errorf("unable to toggle bookmark flag: %v", err)
}
count, err := result.RowsAffected()
if err != nil {
return fmt.Errorf("unable to toogle bookmark flag: %v", err)
}
if count == 0 {
return errors.New("nothing has been updated")
}
return nil
}
// FlushHistory set all entries with the status "read" to "removed".
func (s *Storage) FlushHistory(userID int64) error {
defer timer.ExecutionTime(time.Now(), fmt.Sprintf("[Storage:FlushHistory] userID=%d", userID))
query := `UPDATE entries SET status=$1 WHERE user_id=$2 AND status=$3 AND starred='f'`
_, err := s.db.Exec(query, model.EntryStatusRemoved, userID, model.EntryStatusRead)
if err != nil {
return fmt.Errorf("unable to flush history: %v", err)
}
return nil
}
// MarkAllAsRead set all entries with the status "unread" to "read".
func (s *Storage) MarkAllAsRead(userID int64) error {
defer timer.ExecutionTime(time.Now(), fmt.Sprintf("[Storage:MarkAllAsRead] userID=%d", userID))
query := `UPDATE entries SET status=$1 WHERE user_id=$2 AND status=$3`
_, err := s.db.Exec(query, model.EntryStatusRead, userID, model.EntryStatusUnread)
if err != nil {
return fmt.Errorf("unable to mark all entries as read: %v", err)
}
return nil
}
// EntryURLExists returns true if an entry with this URL already exists.
func (s *Storage) EntryURLExists(userID int64, entryURL string) bool {
var result int
query := `SELECT count(*) as c FROM entries WHERE user_id=$1 AND url=$2`
s.db.QueryRow(query, userID, entryURL).Scan(&result)
return result >= 1
}