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

main.py

@@ -5,6 +5,7 @@ from flask_bootstrap import Bootstrap
 from wtforms import SubmitField, StringField, HiddenField, SelectField, IntegerField, TextAreaField, validators
 from flask_wtf import FlaskForm
 from status import st, Status
+import re
 
 ####################################### Flask App globals #######################################
 app = Flask(__name__)
@@ -26,7 +27,7 @@ from covertype import Covertype, CovertypeForm, CovertypeSchema, GetCovertypeByI
 from owned import Owned, OwnedForm, OwnedSchema, GetOwnedById
 from rating import Rating, RatingForm, RatingSchema
 from loan import Loan, LoanForm, LoanSchema
-from series import Series, SeriesForm, SeriesSchema
+from series import Series, SeriesForm, SeriesSchema, ListOfSeriesWithMissingBooks
 
 ####################################### CLASSES / DB model #######################################
 book_author_link = db.Table('book_author_link', db.Model.metadata,
@@ -77,6 +78,7 @@ class Book(db.Model):
     genre = db.relationship('Genre', secondary=book_genre_link )
     loan = db.relationship('Loan', secondary=Book_Loan_Link.__table__);
     series = db.relationship('Series', secondary=Book_Series_Link.__table__);
+    bsl = db.relationship('Book_Series_Link' )
     year_published = db.Column(db.Integer)
     condition = db.Column(db.Integer, db.ForeignKey('condition.id'))
     covertype = db.Column(db.Integer, db.ForeignKey('covertype.id'))
@@ -212,6 +214,7 @@ app.jinja_env.globals['GetConditionById'] = GetConditionById
 app.jinja_env.globals['GetPublisherById'] = GetPublisherById
 app.jinja_env.globals['SeriesBookNum'] = SeriesBookNum
 app.jinja_env.globals['ClearStatus'] = st.ClearMessage
+app.jinja_env.globals['ListOfSeriesWithMissingBooks'] = ListOfSeriesWithMissingBooks
 
 book_schema = BookSchema()
 
@@ -367,6 +370,18 @@ def book(id):
                 if 'author-' in el:
                    book.author.append( Author.query.get( request.form[el] ) )
 
+            print( "bsl={}".format( book.bsl ))
+            # delete all bsls
+            db.engine.execute("delete from book_series_link where book_id = {}".format( book.id ) )
+            cnt=1
+            for field in request.form:
+                if 'bsl-book_id-' in field and field != 'bsl-book_id-NUM':
+                    cnt=int(re.findall( '\d+', field )[0])
+                    print( "found: bsl-{} book_id == {}, series_id={}, book_num={}".format(cnt, request.form['bsl-book_id-{}'.format(cnt)], request.form['bsl-series_id-{}'.format(cnt)], request.form['bsl-book_num-{}'.format(cnt)]) )
+                    sql="insert into book_series_link (book_id, series_id, book_num) values ( {}, {}, {} )".format( request.form['bsl-book_id-{}'.format(cnt)], request.form['bsl-series_id-{}'.format(cnt)], request.form['bsl-book_num-{}'.format(cnt)])
+                    db.engine.execute( sql )
+                    cnt=cnt+1
+
             ## TODO:
             # what about series?, subbooks?, loan?, etc.
             db.session.commit()
@@ -382,7 +397,7 @@ def book(id):
     genre_list = GetGenres()
 
     book_s = book_schema.dump(book)
-    return render_template("book.html", b=book, books=book_s, book_form=book_form, author_list=author_list, genre_list=genre_list, alert=alert, message=message, n=book_form.notes )
+    return render_template("book.html", b=book, books=book_s, book_form=book_form, author_list=author_list, genre_list=genre_list, alert=alert, message=message, n=book_form.notes, poss_series_list=ListOfSeriesWithMissingBooks() )
 
 @app.route("/", methods=["GET"])
 def main_page():