add/remove series from a book now works, havent thought about removing a parent book fro a series, but otherwise you can add more than one series, remove as well, and it works in the DB

series.py

@@ -44,6 +44,13 @@ def CalcAvgRating(sid):
         print( row )
     return row.rating
 
+def ListOfSeriesWithMissingBooks():
+    res=db.engine.execute("select id, title, num_books, count from ( select s.id, s.title, s.num_books, count(bsl.book_id) from series s, book_series_link bsl where s.id = bsl.series_id group by s.id ) as foo where num_books > count")
+    tmp=[]
+    for row in res:
+        tmp.append({'id': row[0], 'title': row[1]})
+    return tmp
+
 ################################################################################
 # Routes for series data
 #