Fix #1122

(Uploading books with applied language restriction leads no longer to error 500)

cps/editbooks.py

@@ -656,6 +656,12 @@ def upload():
                     db_language = db.Languages(input_language)
                     db.session.add(db_language)
 
+            # If the language of the file is excluded from the users view, it's not imported, to allow the user to view
+            # the book it's language is set to the filter language
+            if db_language != current_user.filter_language() and current_user.filter_language() != "all":
+                db_language = db.session.query(db.Languages).\
+                    filter(db.Languages.lang_code == current_user.filter_language()).first()
+
             # combine path and normalize path from windows systems
             path = os.path.join(author_dir, title_dir).replace('\\', '/')
             db_book = db.Books(title, "", db_author.sort, datetime.datetime.now(), datetime.datetime(101, 1, 1),
@@ -688,7 +694,9 @@ def upload():
             # save data to database, reread data
             db.session.commit()
             db.update_title_sort(config)
-            book = db.session.query(db.Books).filter(db.Books.id == book_id).filter(common_filters()).first()
+            # Reread book. It's important not to filter the result, as it could have language which hide it from
+            # current users view (tags are not stored/extracted from metadata and could also be limited)
+            book = db.session.query(db.Books).filter(db.Books.id == book_id).first()
 
             # upload book to gdrive if nesseccary and add "(bookid)" to folder name
             if config.config_use_google_drive: