first pass for series data, can save, and shows associated books... Does not deal with series inside series

main.py

@@ -23,6 +23,7 @@ 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
 
 # allow jinja2 to call this python function
 app.jinja_env.globals['GetCovertypeById'] = GetCovertypeById
@@ -50,6 +51,11 @@ class Book_Loan_Link(db.Model):
     book_id = db.Column(db.Integer, db.ForeignKey('book.id'), unique=True, nullable=False, primary_key=True)
     loan_id = db.Column(db.Integer, db.ForeignKey('loan.id'), unique=True, nullable=False, primary_key=True)
 
+class Book_Series_Link(db.Model):
+    __tablename__ = "book_series_link"
+    book_id = db.Column(db.Integer, db.ForeignKey('book.id'), unique=True, nullable=False, primary_key=True)
+    series_id = db.Column(db.Integer, db.ForeignKey('series.id'), unique=True, nullable=False, primary_key=True)
+
 class Book_Sub_Book_Link(db.Model):
     __tablename__ = "book_sub_book_link"
     book_id = db.Column(db.Integer, db.ForeignKey('book.id'), unique=True, nullable=False, primary_key=True)
@@ -66,6 +72,7 @@ class Book(db.Model):
     publisher = db.relationship('Publisher', secondary=book_publisher_link)
     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__);
     year_published = db.Column(db.Integer)
     condition = db.Column(db.Integer, db.ForeignKey('condition.id'))
     covertype = db.Column(db.Integer, db.ForeignKey('covertype.id'))
@@ -136,12 +143,14 @@ def books():
 
 @app.route("/books_for_loan/<id>", methods=["GET"])
 def books_for_loan(id):
-#    books = db.engine.execute ( "select * from book_loan_link where loan_id = {}".format( id ) )
-    print( id )
     books = Book.query.join(Book_Loan_Link).filter(Book_Loan_Link.loan_id==id).order_by(Book.id).all()
-    print( books )
     return render_template("books_for_loan.html", books=books)
 
+@app.route("/books_for_series/<id>", methods=["GET"])
+def books_for_series(id):
+    books = Book.query.join(Book_Series_Link).filter(Book_Series_Link.series_id==id).order_by(Book.id).all()
+    return render_template("books_for_series.html", books=books)
+
 @app.route("/book/<id>", methods=["GET"])
 def book(id):
     book = Book.query.get(id)