Add db migration file to change audiobooks to library items with new data model

server/objects/metadata/AudioMetaTags.js

@@ -1,4 +1,4 @@
-class AudioFileMetadata {
+class AudioMetaTags {
   constructor(metadata) {
     this.tagAlbum = null
     this.tagArtist = null
@@ -126,4 +126,4 @@ class AudioFileMetadata {
     return true
   }
 }
-module.exports = AudioFileMetadata
+module.exports = AudioMetaTags

server/objects/metadata/BookMetadata.js

@@ -22,12 +22,12 @@ class BookMetadata {
   construct(metadata) {
     this.title = metadata.title
     this.subtitle = metadata.subtitle
-    this.authors = metadata.authors.map(a => ({ ...a }))
-    this.narrators = [...metadata.narrators]
-    this.series = metadata.series.map(s => ({ ...s }))
-    this.genres = [...metadata.genres]
-    this.publishedYear = metadata.publishedYear
-    this.publishedDate = metadata.publishedDate
+    this.authors = (metadata.authors && metadata.authors.map) ? metadata.authors.map(a => ({ ...a })) : []
+    this.narrators = metadata.narrators ? [...metadata.narrators] : []
+    this.series = (metadata.series && metadata.series.map) ? metadata.series.map(s => ({ ...s })) : []
+    this.genres = metadata.genres ? [...metadata.genres] : []
+    this.publishedYear = metadata.publishedYear || null
+    this.publishedDate = metadata.publishedDate || null
     this.publisher = metadata.publisher
     this.description = metadata.description
     this.isbn = metadata.isbn

server/objects/metadata/FileMetadata.js

@@ -37,5 +37,9 @@ class FileMetadata {
       birthtimeMs: this.birthtimeMs
     }
   }
+
+  clone() {
+    return new FileMetadata(this.toJSON())
+  }
 }
 module.exports = FileMetadata