Fix upsert of torrents

We're missing some infos from the Torrents
We ensure that we set them for now, we'll need to edit the polochon
torrenters so that they put this info
And add a DB constraint, a torrent shouldn't be able to be created
without an imdbID

backend/movies/movies.go

@@ -223,6 +223,7 @@ func (m *Movie) RefreshTorrents(env *web.Env, torrenters []polochon.Torrenter) e
 
 	// Update them in database
 	for _, t := range m.Movie.Torrents {
+		t.ImdbID = m.ImdbID
 		err = models.UpsertMovieTorrent(env.Database, t)
 		if err != nil {
 			log.Error("error while adding torrent", err)

backend/shows/episodes.go

@@ -179,6 +179,9 @@ func RefreshTorrents(env *web.Env, showEpisode *polochon.ShowEpisode, torrenters
 
 	// Upsert all the torrents we got
 	for _, t := range showEpisode.Torrents {
+		t.ImdbID = showEpisode.ShowImdbID
+		t.Season = showEpisode.Season
+		t.Episode = showEpisode.Episode
 		err = models.UpsertEpisodeTorrent(env.Database, t)
 		if err != nil {
 			log.Errorf("error while adding torrent : %s", err)