add discnumber

model/model.go

@@ -16,17 +16,18 @@ type Artist struct {
 type Track struct {
 	IDBase
 	CrudBase
+	Filename       string `gorm:"not null; unique_index:idx_folder_filename" sql:"default: null"`
 	Album          *Album
 	AlbumID        int `gorm:"not null; unique_index:idx_folder_filename" sql:"default: null; type:int REFERENCES albums(id) ON DELETE CASCADE"`
-	Filename       string `gorm:"not null; unique_index:idx_folder_filename" sql:"default: null"`
 	Artist         *Artist
 	ArtistID       int    `gorm:"not null; index" sql:"default: null; type:int REFERENCES artists(id) ON DELETE CASCADE"`
-	Duration       int    `gorm:"not null" sql:"default: null"`
 	Size           int    `gorm:"not null" sql:"default: null"`
+	Duration       int    `gorm:"not null" sql:"default: null"`
 	Bitrate        int    `gorm:"not null" sql:"default: null"`
 	TagTitle       string `sql:"default: null"`
 	TagTrackArtist string `sql:"default: null"`
 	TagTrackNumber int    `sql:"default: null"`
+	TagDiscNumber  int    `sql:"default: null"`
 }
 
 func (t *Track) Ext() string {

scanner/scanner.go

@@ -261,6 +261,7 @@ func (s *Scanner) handleTrack(it *item) error {
 	track.TagTitle = tags.Title()
 	track.TagTrackArtist = tags.Artist()
 	track.TagTrackNumber = tags.TrackNumber()
+	track.TagDiscNumber = tags.DiscNumber()
 	track.Duration = tags.DurationSecs() // these two should be calculated
 	track.Bitrate = tags.Bitrate()       // from the file instead of tags
 	//
@@ -282,7 +283,8 @@ func (s *Scanner) handleTrack(it *item) error {
 	// set album if this is the first track in the folder
 	folder := s.curFolder()
 	if !folder.ReceivedPaths || folder.ReceivedTags {
-		// the folder hasn't been modified or already has it's tags
+		// the folder hasn't been modified
+		// or already has it's tags
 		return nil
 	}
 	folder.TagTitle = tags.Album()

server/handler/construct_sub_by_folder.go

@@ -41,6 +41,7 @@ func newTCTrackByFolder(t *model.Track, parent *model.Album) *subsonic.TrackChil
 		Artist:      t.TagTrackArtist,
 		Title:       t.TagTitle,
 		TrackNumber: t.TagTrackNumber,
+		DiscNumber:  t.TagDiscNumber,
 		Path: path.Join(
 			parent.LeftPath,
 			parent.RightPath,

server/handler/construct_sub_by_tags.go

@@ -34,6 +34,7 @@ func newTrackByTags(t *model.Track, album *model.Album) *subsonic.TrackChild {
 		Title:       t.TagTitle,
 		Artist:      t.TagTrackArtist,
 		TrackNumber: t.TagTrackNumber,
+		DiscNumber:  t.TagDiscNumber,
 		Path: path.Join(
 			album.LeftPath,
 			album.RightPath,

server/handler/handler_sub_by_tags.go

@@ -68,7 +68,7 @@ func (c *Controller) GetAlbum(w http.ResponseWriter, r *http.Request) {
 	err = c.DB.
 		Preload("TagArtist").
 		Preload("Tracks", func(db *gorm.DB) *gorm.DB {
-			return db.Order("tracks.tag_track_number")
+			return db.Order("tracks.tag_disc_number, tracks.tag_track_number")
 		}).
 		First(album, id).
 		Error

server/subsonic/subsonic.go

@@ -102,6 +102,7 @@ type TrackChild struct {
 	Suffix      string    `xml:"suffix,attr,omitempty"      json:"suffix,omitempty"`
 	Title       string    `xml:"title,attr,omitempty"       json:"title,omitempty"`
 	TrackNumber int       `xml:"track,attr,omitempty"       json:"track,omitempty"`
+	DiscNumber  int       `xml:"discNumber,attr,omitempty"  json:"discNumber,omitempty"`
 	Type        string    `xml:"type,attr,omitempty"        json:"type,omitempty"`
 }