Avoid replacing covers with null when updating library (sort of closes #3194)

(cherry picked from commit e6bc181e7ab700577bc76bf63b610a901cb36863)
2020-05-23 10:56:44 -04:00 · 2020-05-23 10:56:44 -04:00 · 471eb36a92
commit 471eb36a92
parent 8b8b377c29
1 changed files with 9 additions and 3 deletions
--- a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt
@ -342,9 +342,15 @@ class LibraryUpdateService(
        // Update manga details metadata in the background
        if (preferences.autoUpdateMetadata()) {
            source.fetchMangaDetails(manga)
-                .map { networkManga ->
-                    manga.prepUpdateCover(coverCache, networkManga, false)
-                    manga.copyFrom(networkManga)
+                .map { updatedManga ->
+                    // Avoid "losing" covers
+                    if (updatedManga.thumbnail_url != null) {
+                        manga.prepUpdateCover(coverCache, updatedManga, false)
+                    } else {
+                        updatedManga.thumbnail_url = manga.thumbnail_url
+                    }
+
+                    manga.copyFrom(updatedManga)
                    db.insertManga(manga).executeAsBlocking()
                    manga
                }