construct subsonic models elsewhere

model/model.go

@@ -13,9 +13,9 @@ import "time"
 type Album struct {
 	IDBase
 	CrudBase
-	AlbumArtist   AlbumArtist
+	Artist   Artist
-	AlbumArtistID int    `gorm:"index" sql:"default: null; type:int REFERENCES album_artists(id) ON DELETE CASCADE"`
+	ArtistID int    `gorm:"index" sql:"default: null; type:int REFERENCES artists(id) ON DELETE CASCADE"`
-	Title         string `gorm:"not null; index"`
+	Title    string `gorm:"not null; index"`
 	// an Album having a `Path` is a little weird when browsing by tags
 	// (for the most part - the library's folder structure is treated as
 	// if it were flat), but this solves the "American Football problem"
@@ -28,8 +28,8 @@ type Album struct {
 	IsNew   bool `gorm:"-"`
 }
 
-// AlbumArtist represents the AlbumArtists table
+// Artist represents the Artists table
-type AlbumArtist struct {
+type Artist struct {
 	IDBase
 	CrudBase
 	Name   string `gorm:"not null; unique_index"`
@@ -40,26 +40,26 @@ type AlbumArtist struct {
 type Track struct {
 	IDBase
 	CrudBase
-	Album         Album
+	Album       Album
-	AlbumID       int `gorm:"index" sql:"default: null; type:int REFERENCES albums(id) ON DELETE CASCADE"`
+	AlbumID     int `gorm:"index" sql:"default: null; type:int REFERENCES albums(id) ON DELETE CASCADE"`
-	AlbumArtist   AlbumArtist
+	Artist      Artist
-	AlbumArtistID int `gorm:"index" sql:"default: null; type:int REFERENCES album_artists(id) ON DELETE CASCADE"`
+	ArtistID    int `gorm:"index" sql:"default: null; type:int REFERENCES artists(id) ON DELETE CASCADE"`
-	Artist        string
+	TrackArtist string
-	Bitrate       int
+	Bitrate     int
-	Codec         string
+	Codec       string
-	DiscNumber    int
+	DiscNumber  int
-	Duration      int
+	Duration    int
-	Title         string
+	Title       string
-	TotalDiscs    int
+	TotalDiscs  int
-	TotalTracks   int
+	TotalTracks int
-	TrackNumber   int
+	TrackNumber int
-	Year          int
+	Year        int
-	Suffix        string
+	Suffix      string
-	ContentType   string
+	ContentType string
-	Size          int
+	Size        int
-	Folder        Folder
+	Folder      Folder
-	FolderID      int    `gorm:"not null; index" sql:"default: null; type:int REFERENCES folders(id) ON DELETE CASCADE"`
+	FolderID    int    `gorm:"not null; index" sql:"default: null; type:int REFERENCES folders(id) ON DELETE CASCADE"`
-	Path          string `gorm:"not null; unique_index"`
+	Path        string `gorm:"not null; unique_index"`
 }
 
 // Cover represents the covers table

scanner/scanner.go

@@ -31,7 +31,7 @@ type Scanner struct {
 	curTracks  []model.Track
 	curCover   model.Cover
 	curAlbum   model.Album
-	curAArtist model.AlbumArtist
+	curAArtist model.Artist
 }
 
 func New(db *gorm.DB, musicPath string) *Scanner {
@@ -43,7 +43,7 @@ func New(db *gorm.DB, musicPath string) *Scanner {
 		curTracks:  make([]model.Track, 0),
 		curCover:   model.Cover{},
 		curAlbum:   model.Album{},
-		curAArtist: model.AlbumArtist{},
+		curAArtist: model.Artist{},
 	}
 }
 
@@ -105,7 +105,7 @@ func (s *Scanner) MigrateDB() error {
 	defer s.tx.Commit()
 	s.tx.AutoMigrate(
 		model.Album{},
-		model.AlbumArtist{},
+		model.Artist{},
 		model.Track{},
 		model.Cover{},
 		model.User{},

scanner/walk.go

@@ -81,7 +81,7 @@ func (s *Scanner) callbackPost(path string, info *godirwalk.Dirent) error {
 	s.curTracks = make([]model.Track, 0)
 	s.curCover = model.Cover{}
 	s.curAlbum = model.Album{}
-	s.curAArtist = model.AlbumArtist{}
+	s.curAArtist = model.Artist{}
 	//
 	log.Printf("processed folder `%s`\n", path)
 	return nil
@@ -156,7 +156,7 @@ func (s *Scanner) handleTrack(it *item) error {
 	track.ContentType = it.track.mime
 	track.Size = int(it.stat.Size())
 	track.Title = tags.Title()
-	track.Artist = tags.Artist()
+	track.TrackArtist = tags.Artist()
 	track.Year = tags.Year()
 	track.FolderID = s.curFolders.PeekID()
 	//
@@ -168,7 +168,7 @@ func (s *Scanner) handleTrack(it *item) error {
 		s.curAArtist.Name = tags.AlbumArtist()
 		s.tx.Save(&s.curAArtist)
 	}
-	track.AlbumArtistID = s.curAArtist.ID
+	track.ArtistID = s.curAArtist.ID
 	//
 	// set album if this is the first track in the folder
 	if len(s.curTracks) > 0 {
@@ -189,7 +189,7 @@ func (s *Scanner) handleTrack(it *item) error {
 	s.curAlbum.Path = directory
 	s.curAlbum.Title = tags.Album()
 	s.curAlbum.Year = tags.Year()
-	s.curAlbum.AlbumArtistID = s.curAArtist.ID
+	s.curAlbum.ArtistID = s.curAArtist.ID
 	s.curAlbum.IsNew = true
 	return nil
 }

server/handler/construct_sub_by_folder.go

@@ -0,0 +1,54 @@
+package handler
+
+import (
+	"github.com/sentriz/gonic/model"
+	"github.com/sentriz/gonic/server/subsonic"
+)
+
+func makeChildFromFolder(f *model.Folder, parent *model.Folder) *subsonic.Child {
+	return &subsonic.Child{
+		ID:       f.ID,
+		Title:    f.Name,
+		CoverID:  f.CoverID,
+		ParentID: parent.ID,
+		IsDir:    true,
+	}
+}
+
+func makeChildFromTrack(t *model.Track, parent *model.Folder) *subsonic.Child {
+	return &subsonic.Child{
+		ID:          t.ID,
+		Album:       t.Album.Title,
+		Artist:      t.TrackArtist,
+		ContentType: t.ContentType,
+		Path:        t.Path,
+		Size:        t.Size,
+		Suffix:      t.Suffix,
+		Title:       t.Title,
+		Track:       t.TrackNumber,
+		ParentID:    parent.ID,
+		CoverID:     parent.CoverID,
+		Duration:    0,
+		IsDir:       false,
+		Type:        "music",
+	}
+}
+
+func makeAlbumFromFolder(f *model.Folder) *subsonic.Album {
+	return &subsonic.Album{
+		ID:       f.ID,
+		Title:    f.Name,
+		Album:    f.Name,
+		CoverID:  f.CoverID,
+		ParentID: f.ParentID,
+		Artist:   f.Parent.Name,
+		IsDir:    true,
+	}
+}
+
+func makeArtistFromFolder(f *model.Folder) *subsonic.Artist {
+	return &subsonic.Artist{
+		ID:   f.ID,
+		Name: f.Name,
+	}
+}

server/handler/construct_sub_by_tags.go

@@ -0,0 +1,43 @@
+package handler
+
+import (
+	"github.com/sentriz/gonic/model"
+	"github.com/sentriz/gonic/server/subsonic"
+)
+
+func makeAlbumFromAlbum(a *model.Album, artist *model.Artist) *subsonic.Album {
+	return &subsonic.Album{
+		ID:       a.ID,
+		Name:     a.Title,
+		Created:  a.CreatedAt,
+		CoverID:  a.CoverID,
+		Artist:   artist.Name,
+		ArtistID: artist.ID,
+	}
+}
+
+func makeTrackFromTrack(t *model.Track, album *model.Album) *subsonic.Track {
+	return &subsonic.Track{
+		ID:          t.ID,
+		Title:       t.Title,
+		Artist:      t.TrackArtist,
+		TrackNumber: t.TrackNumber,
+		ContentType: t.ContentType,
+		Path:        t.Path,
+		Suffix:      t.Suffix,
+		CreatedAt:   t.CreatedAt,
+		Size:        t.Size,
+		Album:       album.Title,
+		AlbumID:     album.ID,
+		ArtistID:    album.Artist.ID,
+		CoverID:     album.CoverID,
+		Type:        "music",
+	}
+}
+
+func makeArtistFromArtist(a *model.Artist) *subsonic.Artist {
+	return &subsonic.Artist{
+		ID:   a.ID,
+		Name: a.Name,
+	}
+}

server/handler/handler_admin.go

@@ -49,7 +49,7 @@ func (c *Controller) ServeLogout(w http.ResponseWriter, r *http.Request) {
 
 func (c *Controller) ServeHome(w http.ResponseWriter, r *http.Request) {
 	var data templateData
-	c.DB.Table("album_artists").Count(&data.ArtistCount)
+	c.DB.Table("artists").Count(&data.ArtistCount)
 	c.DB.Table("albums").Count(&data.AlbumCount)
 	c.DB.Table("tracks").Count(&data.TrackCount)
 	c.DB.Find(&data.AllUsers)

server/handler/handler_sub_by_folder.go

@@ -13,7 +13,7 @@ import (
 func (c *Controller) GetIndexes(w http.ResponseWriter, r *http.Request) {
 	// we are browsing by folder, but the subsonic docs show sub <artist> elements
 	// for this, so we're going to return root directories as "artists"
-	var folders []*model.Folder
+	var folders []model.Folder
 	c.DB.Where("parent_id = ?", 1).Find(&folders)
 	var indexMap = make(map[rune]*subsonic.Index)
 	var indexes []*subsonic.Index
@@ -28,10 +28,8 @@ func (c *Controller) GetIndexes(w http.ResponseWriter, r *http.Request) {
 			indexMap[i] = index
 			indexes = append(indexes, index)
 		}
-		index.Artists = append(index.Artists, &subsonic.Artist{
+		index.Artists = append(index.Artists,
-			ID:   folder.ID,
+			makeArtistFromFolder(&folder))
-			Name: folder.Name,
-		})
 	}
 	sub := subsonic.NewResponse()
 	sub.Indexes = &subsonic.Indexes{
@@ -48,61 +46,42 @@ func (c *Controller) GetMusicDirectory(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	childrenObj := []*subsonic.Child{}
-	var cFolder model.Folder
+	var folder model.Folder
-	c.DB.First(&cFolder, id)
+	c.DB.First(&folder, id)
 	//
-	// start looking for child folders in the current dir
+	// start looking for child childFolders in the current dir
-	var folders []*model.Folder
+	var childFolders []model.Folder
 	c.DB.
 		Where("parent_id = ?", id).
-		Find(&folders)
+		Find(&childFolders)
-	for _, folder := range folders {
+	for _, c := range childFolders {
-		childrenObj = append(childrenObj, &subsonic.Child{
+		childrenObj = append(childrenObj,
-			Parent:  cFolder.ID,
+			makeChildFromFolder(&c, &folder))
-			ID:      folder.ID,
-			Title:   folder.Name,
-			IsDir:   true,
-			CoverID: folder.CoverID,
-		})
 	}
 	//
-	// start looking for child tracks in the current dir
+	// start looking for child childTracks in the current dir
-	var tracks []*model.Track
+	var childTracks []model.Track
 	c.DB.
 		Where("folder_id = ?", id).
 		Preload("Album").
 		Order("title").
-		Find(&tracks)
+		Find(&childTracks)
-	for _, track := range tracks {
+	for _, c := range childTracks {
 		if getStrParam(r, "c") == "Jamstash" {
 			// jamstash thinks it can't play flacs
-			track.ContentType = "audio/mpeg"
+			c.ContentType = "audio/mpeg"
-			track.Suffix = "mp3"
+			c.Suffix = "mp3"
 		}
-		childrenObj = append(childrenObj, &subsonic.Child{
+		childrenObj = append(childrenObj,
-			ID:          track.ID,
+			makeChildFromTrack(&c, &folder))
-			Album:       track.Album.Title,
-			Artist:      track.Artist,
-			ContentType: track.ContentType,
-			CoverID:     cFolder.CoverID,
-			Duration:    0,
-			IsDir:       false,
-			Parent:      cFolder.ID,
-			Path:        track.Path,
-			Size:        track.Size,
-			Suffix:      track.Suffix,
-			Title:       track.Title,
-			Track:       track.TrackNumber,
-			Type:        "music",
-		})
 	}
 	//
 	// respond section
 	sub := subsonic.NewResponse()
 	sub.Directory = &subsonic.Directory{
-		ID:       cFolder.ID,
+		ID:       folder.ID,
-		Parent:   cFolder.ParentID,
+		Parent:   folder.ParentID,
-		Name:     cFolder.Name,
+		Name:     folder.Name,
 		Children: childrenObj,
 	}
 	respond(w, r, sub)
@@ -152,28 +131,18 @@ func (c *Controller) GetAlbumList(w http.ResponseWriter, r *http.Request) {
 		))
 		return
 	}
-	var folders []*model.Folder
+	var folders []model.Folder
 	q.
 		Where("folders.has_tracks = 1").
 		Offset(getIntParamOr(r, "offset", 0)).
 		Limit(getIntParamOr(r, "size", 10)).
 		Preload("Parent").
 		Find(&folders)
-	listObj := []*subsonic.Album{}
-	for _, folder := range folders {
-		listObj = append(listObj, &subsonic.Album{
-			ID:       folder.ID,
-			Title:    folder.Name,
-			Album:    folder.Name,
-			CoverID:  folder.CoverID,
-			ParentID: folder.ParentID,
-			IsDir:    true,
-			Artist:   folder.Parent.Name,
-		})
-	}
 	sub := subsonic.NewResponse()
-	sub.Albums = &subsonic.Albums{
+	sub.Albums = &subsonic.Albums{}
-		List: listObj,
+	for _, folder := range folders {
+		sub.Albums.List = append(sub.Albums.List,
+			makeAlbumFromFolder(&folder))
 	}
 	respond(w, r, sub)
 }

server/handler/handler_sub_by_tags.go

@@ -11,7 +11,7 @@ import (
 )
 
 func (c *Controller) GetArtists(w http.ResponseWriter, r *http.Request) {
-	var artists []*model.AlbumArtist
+	var artists []model.Artist
 	c.DB.Find(&artists)
 	var indexMap = make(map[rune]*subsonic.Index)
 	var indexes subsonic.Artists
@@ -26,10 +26,8 @@ func (c *Controller) GetArtists(w http.ResponseWriter, r *http.Request) {
 			indexMap[i] = index
 			indexes.List = append(indexes.List, index)
 		}
-		index.Artists = append(index.Artists, &subsonic.Artist{
+		index.Artists = append(index.Artists,
-			ID:   artist.ID,
+			makeArtistFromArtist(&artist))
-			Name: artist.Name,
-		})
 	}
 	sub := subsonic.NewResponse()
 	sub.Artists = &indexes
@@ -42,26 +40,15 @@ func (c *Controller) GetArtist(w http.ResponseWriter, r *http.Request) {
 		respondError(w, r, 10, "please provide an `id` parameter")
 		return
 	}
-	var artist model.AlbumArtist
+	var artist model.Artist
 	c.DB.
 		Preload("Albums").
 		First(&artist, id)
-	albumsObj := []*subsonic.Album{}
-	for _, album := range artist.Albums {
-		albumsObj = append(albumsObj, &subsonic.Album{
-			ID:       album.ID,
-			Name:     album.Title,
-			Created:  album.CreatedAt,
-			Artist:   artist.Name,
-			ArtistID: artist.ID,
-			CoverID:  album.CoverID,
-		})
-	}
 	sub := subsonic.NewResponse()
-	sub.Artist = &subsonic.Artist{
+	sub.Artist = makeArtistFromArtist(&artist)
-		ID:     artist.ID,
+	for _, album := range artist.Albums {
-		Name:   artist.Name,
+		sub.Artist.Albums = append(sub.Artist.Albums,
-		Albums: albumsObj,
+			makeAlbumFromAlbum(&album, &artist))
 	}
 	respond(w, r, sub)
 }
@@ -73,39 +60,22 @@ func (c *Controller) GetAlbum(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	var album model.Album
-	c.DB.
+	err = c.DB.
-		Preload("AlbumArtist").
+		Preload("Artist").
 		Preload("Tracks", func(db *gorm.DB) *gorm.DB {
-            return db.Order("tracks.track_number")
+			return db.Order("tracks.track_number")
-        }).
+		}).
-		First(&album, id)
+		First(&album, id).
-	tracksObj := []*subsonic.Track{}
+		Error
-	for _, track := range album.Tracks {
+	if gorm.IsRecordNotFoundError(err) {
-		tracksObj = append(tracksObj, &subsonic.Track{
+		respondError(w, r, 10, "couldn't find an album with that id")
-			ID:          track.ID,
+		return
-			Title:       track.Title,
-			Artist:      track.Artist, // track artist
-			TrackNo:     track.TrackNumber,
-			ContentType: track.ContentType,
-			Path:        track.Path,
-			Suffix:      track.Suffix,
-			Created:     track.CreatedAt,
-			Size:        track.Size,
-			Album:       album.Title,
-			AlbumID:     album.ID,
-			ArtistID:    album.AlbumArtist.ID, // album artist
-			CoverID:     album.CoverID,
-			Type:        "music",
-		})
 	}
 	sub := subsonic.NewResponse()
-	sub.Album = &subsonic.Album{
+	sub.Album = makeAlbumFromAlbum(&album, &album.Artist)
-		ID:      album.ID,
+	for _, track := range album.Tracks {
-		Name:    album.Title,
+		sub.Album.Tracks = append(sub.Album.Tracks,
-		CoverID: album.CoverID,
+			makeTrackFromTrack(&track, &album))
-		Created: album.CreatedAt,
-		Artist:  album.AlbumArtist.Name,
-		Tracks:  tracksObj,
 	}
 	respond(w, r, sub)
 }
@@ -122,9 +92,9 @@ func (c *Controller) GetAlbumListTwo(w http.ResponseWriter, r *http.Request) {
 	switch listType {
 	case "alphabeticalByArtist":
 		q = q.Joins(`
-			JOIN album_artists
+			JOIN artists
-			ON albums.album_artist_id = album_artists.id`)
+			ON albums.artist_id = artists.id`)
-		q = q.Order("album_artists.name")
+		q = q.Order("artists.name")
 	case "alphabeticalByName":
 		q = q.Order("title")
 	case "byYear":
@@ -157,26 +127,17 @@ func (c *Controller) GetAlbumListTwo(w http.ResponseWriter, r *http.Request) {
 		))
 		return
 	}
-	var albums []*model.Album
+	var albums []model.Album
 	q.
 		Offset(getIntParamOr(r, "offset", 0)).
 		Limit(getIntParamOr(r, "size", 10)).
-		Preload("AlbumArtist").
+		Preload("Artist").
 		Find(&albums)
-	listObj := []*subsonic.Album{}
-	for _, album := range albums {
-		listObj = append(listObj, &subsonic.Album{
-			ID:       album.ID,
-			Name:     album.Title,
-			Created:  album.CreatedAt,
-			CoverID:  album.CoverID,
-			Artist:   album.AlbumArtist.Name,
-			ArtistID: album.AlbumArtist.ID,
-		})
-	}
 	sub := subsonic.NewResponse()
-	sub.AlbumsTwo = &subsonic.Albums{
+	sub.AlbumsTwo = &subsonic.Albums{}
-		List: listObj,
+	for _, album := range albums {
+		sub.AlbumsTwo.List = append(sub.AlbumsTwo.List,
+			makeAlbumFromAlbum(&album, &album.Artist))
 	}
 	respond(w, r, sub)
 }

server/handler/handler_sub_common.go

@@ -96,14 +96,14 @@ func (c *Controller) Scrobble(w http.ResponseWriter, r *http.Request) {
 	// fetch user to get lastfm session
 	user := r.Context().Value(contextUserKey).(*model.User)
 	if user.LastFMSession == "" {
-		respondError(w, r, 0, fmt.Sprintf("no last.fm session for this user: %v", err))
+		respondError(w, r, 0, "you don't have a last.fm session")
 		return
 	}
 	// fetch track for getting info to send to last.fm function
 	var track model.Track
 	c.DB.
 		Preload("Album").
-		Preload("AlbumArtist").
+		Preload("Artist").
 		First(&track, id)
 	// scrobble with above info
 	err = lastfm.Scrobble(

server/handler/middleware_sub.go

@@ -33,12 +33,12 @@ func checkCredentialsToken(password, token, salt string) bool {
 	return token == expToken
 }
 
-func checkCredentialsBasic(password, givenPassword string) bool {
+func checkCredentialsBasic(password, given string) bool {
-	if givenPassword[:4] == "enc:" {
+	if given[:4] == "enc:" {
-		bytes, _ := hex.DecodeString(givenPassword[4:])
+		bytes, _ := hex.DecodeString(given[4:])
-		givenPassword = string(bytes)
+		given = string(bytes)
 	}
-	return password == givenPassword
+	return password == given
 }
 
 func (c *Controller) WithValidSubsonicArgs(next http.HandlerFunc) http.HandlerFunc {
@@ -62,7 +62,6 @@ func (c *Controller) WithValidSubsonicArgs(next http.HandlerFunc) http.HandlerFu
 		}
 		user := c.GetUserFromName(username)
 		if user == nil {
-			// the user does not exist
 			respondError(w, r, 40, "invalid username")
 			return
 		}

server/lastfm/lastfm.go

@@ -48,10 +48,10 @@ func Scrobble(apiKey, secret, session string, track *model.Track,
 	}
 	params.Add("api_key", apiKey)
 	params.Add("sk", session)
-	params.Add("artist", track.Artist)
+	params.Add("artist", track.TrackArtist)
 	params.Add("track", track.Title)
 	params.Add("album", track.Album.Title)
-	params.Add("albumArtist", track.AlbumArtist.Name)
+	params.Add("albumArtist", track.Artist.Name)
 	params.Add("trackNumber", strconv.Itoa(track.TrackNumber))
 	params.Add("api_sig", getParamSignature(params, secret))
 	_, err := makeRequest("POST", params)

server/lastfm/lastfm_test.go

@@ -0,0 +1,23 @@
+package lastfm
+
+import (
+	"crypto/md5"
+	"fmt"
+	"net/url"
+	"testing"
+)
+
+func TestGetParamSignature(t *testing.T) {
+	params := url.Values{}
+	params.Add("ccc", "CCC")
+	params.Add("bbb", "BBB")
+	params.Add("aaa", "AAA")
+	params.Add("ddd", "DDD")
+	actual := getParamSignature(params, "secret")
+	expected := fmt.Sprintf("%x", md5.Sum([]byte(
+		"aaaAAAbbbBBBcccCCCdddDDDsecret",
+	)))
+	if actual != expected {
+		t.Errorf("expected %x, got %s", expected, actual)
+	}
+}

server/subsonic/media.go

@@ -1,6 +1,8 @@
 package subsonic
 
-import "time"
+import (
+	"time"
+)
 
 type Albums struct {
 	List []*Album `xml:"album" json:"album,omitempty"`
@@ -30,26 +32,26 @@ type RandomTracks struct {
 }
 
 type Track struct {
-	ID          int       `xml:"id,attr,omitempty"          json:"id"`
+	ID            int       `xml:"id,attr,omitempty"          json:"id"`
-	Parent      int       `xml:"parent,attr,omitempty"      json:"parent"`
+	Parent        int       `xml:"parent,attr,omitempty"      json:"parent"`
-	Title       string    `xml:"title,attr,omitempty"       json:"title"`
+	Title         string    `xml:"title,attr,omitempty"       json:"title"`
-	Album       string    `xml:"album,attr,omitempty"       json:"album"`
+	Album         string    `xml:"album,attr,omitempty"       json:"album"`
-	Artist      string    `xml:"artist,attr,omitempty"      json:"artist"`
+	Artist        string    `xml:"artist,attr,omitempty"      json:"artist"`
-	IsDir       bool      `xml:"isDir,attr,omitempty"       json:"isDir"`
+	IsDir         bool      `xml:"isDir,attr,omitempty"       json:"isDir"`
-	CoverID     int       `xml:"coverArt,attr,omitempty"    json:"coverArt"`
+	CoverID       int       `xml:"coverArt,attr,omitempty"    json:"coverArt"`
-	Created     time.Time `xml:"created,attr,omitempty"     json:"created"`
+	CreatedAt     time.Time `xml:"created,attr,omitempty"     json:"created"`
-	Duration    int       `xml:"duration,attr,omitempty"    json:"duration"`
+	Duration      int       `xml:"duration,attr,omitempty"    json:"duration"`
-	Genre       string    `xml:"genre,attr,omitempty"       json:"genre"`
+	Genre         string    `xml:"genre,attr,omitempty"       json:"genre"`
-	Bitrate     int       `xml:"bitRate,attr,omitempty"     json:"bitRate"`
+	Bitrate       int       `xml:"bitRate,attr,omitempty"     json:"bitRate"`
-	Size        int       `xml:"size,attr,omitempty"        json:"size"`
+	Size          int       `xml:"size,attr,omitempty"        json:"size"`
-	Suffix      string    `xml:"suffix,attr,omitempty"      json:"suffix"`
+	Suffix        string    `xml:"suffix,attr,omitempty"      json:"suffix"`
-	ContentType string    `xml:"contentType,attr,omitempty" json:"contentType"`
+	ContentType   string    `xml:"contentType,attr,omitempty" json:"contentType"`
-	IsVideo     bool      `xml:"isVideo,attr,omitempty"     json:"isVideo"`
+	IsVideo       bool      `xml:"isVideo,attr,omitempty"     json:"isVideo"`
-	Path        string    `xml:"path,attr,omitempty"        json:"path"`
+	Path          string    `xml:"path,attr,omitempty"        json:"path"`
-	AlbumID     int       `xml:"albumId,attr,omitempty"     json:"albumId"`
+	AlbumID       int       `xml:"albumId,attr,omitempty"     json:"albumId"`
-	ArtistID    int       `xml:"artistId,attr,omitempty"    json:"artistId"`
+	ArtistID int       `xml:"artistId,attr,omitempty"    json:"artistId"`
-	TrackNo     int       `xml:"track,attr,omitempty"       json:"track"`
+	TrackNumber   int       `xml:"track,attr,omitempty"       json:"track"`
-	Type        string    `xml:"type,attr,omitempty"        json:"type"`
+	Type          string    `xml:"type,attr,omitempty"        json:"type"`
 }
 
 type Artists struct {
@@ -84,7 +86,7 @@ type Directory struct {
 
 type Child struct {
 	ID          int    `xml:"id,attr,omitempty"          json:"id,omitempty"`
-	Parent      int    `xml:"parent,attr,omitempty"      json:"parent,omitempty"`
+	ParentID    int    `xml:"parent,attr,omitempty"      json:"parent,omitempty"`
 	Title       string `xml:"title,attr,omitempty"       json:"title,omitempty"`
 	IsDir       bool   `xml:"isDir,attr,omitempty"       json:"isDir,omitempty"`
 	Album       string `xml:"album,attr,omitempty"       json:"album,omitempty"`