created generic id_name_form.html and made condition, covertype, genre, owned, publisher & rating use it for single edit page

author.py

@@ -1,4 +1,5 @@
 from wtforms import SubmitField, StringField, HiddenField, validators, Form
+from flask_wtf import FlaskForm
 from flask import request, render_template
 from __main__ import db, app, ma
 
@@ -24,7 +25,7 @@ class AuthorSchema(ma.SQLAlchemyAutoSchema):
 ################################################################################
 # Helper class that defines a form for author, used to make html <form>, with field validation (via wtforms)
 ################################################################################
-class AuthorForm(Form):
+class AuthorForm(FlaskForm):
     id = HiddenField()
     firstnames = StringField('FirstName(s):', [validators.DataRequired()])
     surname = StringField('Surname:', [validators.DataRequired()])
@@ -49,7 +50,8 @@ def author(id):
     ### DDP: should this be request.form or request.values?
     alert="Success"
     author_form = AuthorForm(request.form)
-    if request.method == 'POST' and author_form.validate():
+    print( author_form.validate_on_submit() )
+    if request.method == 'POST' and author_form.validate_on_submit():
         id = request.form['id']
         author = Author.query.get(id)
         try: