Introduced types for the collections

domain/album.go

@@ -15,9 +15,11 @@ type Album struct {
 	Genre        string
 }
 
+type Albums []Album
+
 type AlbumRepository interface {
 	BaseRepository
 	Put(m *Album) error
 	Get(id string) (*Album, error)
-	FindByArtist(artistId string) ([]Album, error)
+	FindByArtist(artistId string) (Albums, error)
 }

domain/index.go

@@ -10,9 +10,11 @@ type ArtistIndex struct {
 	Artists []ArtistInfo
 }
 
+type ArtistIndexes []ArtistIndex
+
 type ArtistIndexRepository interface {
 	BaseRepository
 	Put(m *ArtistIndex) error
 	Get(id string) (*ArtistIndex, error)
-	GetAll() ([]ArtistIndex, error)
+	GetAll() (ArtistIndexes, error)
 }

domain/mediafile.go

@@ -32,9 +32,11 @@ func (mf *MediaFile) ContentType() string {
 	return mime.TypeByExtension("." + mf.Suffix)
 }
 
+type MediaFiles []MediaFile
+
 type MediaFileRepository interface {
 	BaseRepository
 	Put(m *MediaFile) error
 	Get(id string) (*MediaFile, error)
-	FindByAlbum(albumId string) ([]MediaFile, error)
+	FindByAlbum(albumId string) (MediaFiles, error)
 }

domain/mediafolder.go

@@ -6,6 +6,8 @@ type MediaFolder struct {
 	Path string
 }
 
+type MediaFolders []MediaFolder
+
 type MediaFolderRepository interface {
-	GetAll() ([]MediaFolder, error)
+	GetAll() (MediaFolders, error)
 }