fixed bug with route to / now needing to be to base.html, not main.html, then just added publisher (list all/edit 1/deleted button)

publisher.py

@@ -0,0 +1,64 @@
+from wtforms import SubmitField, StringField, HiddenField, validators, Form
+from flask import request, render_template
+from __main__ import db, app, ma
+
+################################################################################
+# Class describing Publisher in the database, and via sqlalchemy, connected to the DB as well
+################################################################################
+class Publisher(db.Model):
+    id = db.Column(db.Integer, unique=True, nullable=False, primary_key=True)
+    name = db.Column(db.String(50), unique=False, nullable=False)
+
+    def __repr__(self):
+        return "<id: {}, name: {}>".format(self.id,self.name)
+
+################################################################################
+# Helper class that inherits a .dump() method to turn class Publisher into json / useful in jinja2
+################################################################################
+class PublisherSchema(ma.SQLAlchemyAutoSchema):
+    class Meta: model = Publisher
+
+################################################################################
+# Helper class that defines a form for publisher, used to make html <form>, with field validation (via wtforms)
+################################################################################
+class PublisherForm(Form):
+    id = HiddenField()
+    name = StringField('Name:', [validators.DataRequired()])
+    submit = SubmitField('Save' )
+    delete = SubmitField('Delete' )
+
+################################################################################
+# Routes for publisher data
+#
+# /publishers -> GET only -> prints out list of all publishers
+################################################################################
+@app.route("/publishers", methods=["GET"])
+def publishers():
+    publishers = Publisher.query.all()
+    return render_template("publishers.html", publishers=publishers)
+
+################################################################################
+# /publisher/<id> -> GET/POST(save or delete) -> shows/edits/delets a single publisher
+################################################################################
+@app.route("/publisher/<id>", methods=["GET", "POST"])
+def publisher(id):
+    ### DDP: should this be request.form or request.values?
+    alert="Success"
+    publisher_form = PublisherForm(request.form)
+    if request.method == 'POST' and publisher_form.validate():
+        id = request.form['id']
+        publisher = Publisher.query.get(id)
+        try:
+            request.form['submit']
+        except:
+            message="Sorry, Deleting unsupported at present"
+            alert="Danger"
+        else:
+            publisher.name = request.form['name']
+            db.session.commit()
+            message="Successfully Updated Publisher (id={})".format(id)
+    else:
+        publisher = Publisher.query.get(id)
+        publisher_form = PublisherForm(request.values, obj=publisher)
+        message=""
+    return render_template("publisher.html", publisher=publisher, alert=alert, message=message, publisher_form=publisher_form)