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// 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 (
"fmt"
"github.com/miniflux/miniflux/model"
)
// GetEnclosures returns all attachments for the given entry.
func (s *Storage) GetEnclosures(entryID int64) (model.EnclosureList, error) {
query := `SELECT
id, user_id, entry_id, url, size, mime_type
FROM enclosures
WHERE entry_id = $1 ORDER BY id ASC`
rows, err := s.db.Query(query, entryID)
if err != nil {
return nil, fmt.Errorf("unable to get enclosures: %v", err)
}
defer rows.Close()
enclosures := make(model.EnclosureList, 0)
for rows.Next() {
var enclosure model.Enclosure
err := rows.Scan(
&enclosure.ID,
&enclosure.UserID,
&enclosure.EntryID,
&enclosure.URL,
&enclosure.Size,
&enclosure.MimeType,
)
if err != nil {
return nil, fmt.Errorf("unable to fetch enclosure row: %v", err)
}
enclosures = append(enclosures, &enclosure)
}
return enclosures, nil
}
// CreateEnclosure creates a new attachment.
func (s *Storage) CreateEnclosure(enclosure *model.Enclosure) error {
query := `
INSERT INTO enclosures
(url, size, mime_type, entry_id, user_id)
VALUES
($1, $2, $3, $4, $5)
RETURNING id
`
err := s.db.QueryRow(
query,
enclosure.URL,
enclosure.Size,
enclosure.MimeType,
enclosure.EntryID,
enclosure.UserID,
).Scan(&enclosure.ID)
if err != nil {
return fmt.Errorf("unable to create enclosure: %v", err)
}
return nil
}
// IsEnclosureExists checks if an attachment exists.
func (s *Storage) IsEnclosureExists(enclosure *model.Enclosure) bool {
var result int
query := `SELECT count(*) as c FROM enclosures WHERE user_id=$1 AND entry_id=$2 AND url=$3`
s.db.QueryRow(query, enclosure.UserID, enclosure.EntryID, enclosure.URL).Scan(&result)
return result >= 1
}
// UpdateEnclosures add missing attachments while updating a feed.
func (s *Storage) UpdateEnclosures(enclosures model.EnclosureList) error {
for _, enclosure := range enclosures {
if !s.IsEnclosureExists(enclosure) {
err := s.CreateEnclosure(enclosure)
if err != nil {
return err
}
}
}
return nil
}
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