updated README to reflect next steps (will use flask-wtf and flask-boostrap), but proof-of-concept author/<id> works to save to database with a form / POST

main.py

@@ -167,9 +167,24 @@ def book(id):
     return render_template("books.html", books=book_s, subs=sub_book )
 
 @app.route("/authors", methods=["GET"])
-def author():
+def authors():
     authors = Author.query.all()
-    return render_template("author.html", authors=authors)
+    return render_template("authors.html", authors=authors)
+
+@app.route("/author/<id>", methods=["GET", "POST"])
+def author(id):
+    if request.method == 'POST':
+        id = request.form['author.id']
+        author = Author.query.get(id)
+        author.firstnames = request.form['author.firstnames']
+        author.surname = request.form['author.surname']
+        db.session.commit()
+        message="Successfully Updated Author (id={})".format(id)
+    else:
+        author = Author.query.get(id)
+        message=""
+    return render_template("author.html", author=author, message=message)
+    
 
 if __name__ == "__main__":
     app.run(host="0.0.0.0", debug=True)