98 lines
2.3 KiB
Go
98 lines
2.3 KiB
Go
package persistence
|
|
|
|
import (
|
|
"database/sql"
|
|
|
|
"offline_twitter/scraper"
|
|
)
|
|
|
|
/**
|
|
* Save an Image
|
|
*
|
|
* args:
|
|
* - img: the Image to save
|
|
*/
|
|
func (p Profile) SaveImage(img scraper.Image) error {
|
|
_, err := p.DB.Exec(`
|
|
insert into images (id, tweet_id, filename, is_downloaded)
|
|
values (?, ?, ?, ?, ?, ?)
|
|
on conflict do update
|
|
set is_downloaded=?
|
|
`,
|
|
img.ID, img.TweetID, img.Filename, img.IsDownloaded,
|
|
img.IsDownloaded,
|
|
)
|
|
return err
|
|
}
|
|
|
|
/**
|
|
* Save a Video. If it's a new Video (no rowid), does an insert; otherwise, does an update.
|
|
*
|
|
* args:
|
|
* - img: the Video to save
|
|
*
|
|
* returns:
|
|
* - the rowid
|
|
*/
|
|
func (p Profile) SaveVideo(vid scraper.Video) (sql.Result, error) {
|
|
if vid.ID == 0 {
|
|
// New image
|
|
return p.DB.Exec("insert into videos (tweet_id, filename) values (?, ?) on conflict do nothing", vid.TweetID, vid.Filename)
|
|
} else {
|
|
// Updating an existing image
|
|
return p.DB.Exec("update videos set filename=?, is_downloaded=? where rowid=?", vid.Filename, vid.IsDownloaded, vid.ID)
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the list of images for a tweet
|
|
*/
|
|
func (p Profile) GetImagesForTweet(t scraper.Tweet) (imgs []scraper.Image, err error) {
|
|
stmt, err := p.DB.Prepare("select id, filename, is_downloaded from images where tweet_id=?")
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer stmt.Close()
|
|
rows, err := stmt.Query(t.ID)
|
|
if err != nil {
|
|
return
|
|
}
|
|
var img scraper.Image
|
|
|
|
for rows.Next() {
|
|
err = rows.Scan(&img.ID, &img.Filename, &img.IsDownloaded)
|
|
if err != nil {
|
|
return
|
|
}
|
|
img.TweetID = t.ID
|
|
imgs = append(imgs, img)
|
|
}
|
|
return
|
|
}
|
|
|
|
|
|
/**
|
|
* Get the list of videos for a tweet
|
|
*/
|
|
func (p Profile) GetVideosForTweet(t scraper.Tweet) (vids []scraper.Video, err error) {
|
|
stmt, err := p.DB.Prepare("select rowid, filename, is_downloaded from videos where tweet_id=?")
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer stmt.Close()
|
|
rows, err := stmt.Query(t.ID)
|
|
if err != nil {
|
|
return
|
|
}
|
|
var vid scraper.Video
|
|
for rows.Next() {
|
|
err = rows.Scan(&vid.ID, &vid.Filename, &vid.IsDownloaded)
|
|
if err != nil {
|
|
return
|
|
}
|
|
vid.TweetID = t.ID
|
|
vids = append(vids, vid)
|
|
}
|
|
return
|
|
}
|